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專利

  1. 進階專利搜尋
公開號CN104731305 A
出版類型申請
申請書編號CN 201510156733
發佈日期2015年6月24日
申請日期2015年4月3日
優先權日期2015年4月3日
其他公開專利號CN104731305B
公開號201510156733.9, CN 104731305 A, CN 104731305A, CN 201510156733, CN-A-104731305, CN104731305 A, CN104731305A, CN201510156733, CN201510156733.9
發明人林大鹏, 杜洋, 宋超
申請者青岛歌尔声学科技有限公司
匯出書目資料BiBTeX, EndNote, RefMan
外部連結:  中華人民共和國國家知識產權局, 歐洲專利局
Shutdown control circuit and electronic product with same
CN 104731305 A
摘要
The invention discloses a shutdown control circuit and an electronic product with the same. The shutdown control circuit is provided with a power source management circuit, a system main circuit, a specific function circuit, a startup key and a complete shutdown key. The specific function circuit needs to run continuously when the electronic product is shut down. One end of the startup key is communicated with the positive electrode of a battery, and the other end of the startup key is communicated with the enabled end of a first power source conversion chip. When the startup key is pressed down, the first power source conversion chip is controlled to be enabled to supply power to the system main circuit. One end of the complete shutdown key is communicated with system voltage, and the other end of the complete shutdown key is communicated with the system main circuit. When detecting that the complete shutdown key is pressed down, the system main circuit outputs a complete shutdown signal to control a second power source conversion chip to stop running, the power supplied to the specific function circuit is cut off, and the system main circuit is controlled to be shut down. By designing the whole system shutdown mode, electric quantity consumption of a battery in the electronic product is reduced to the maximum limit, and the storage time of the charged electronic product in a storeroom is prolonged.
聲明所有權(10)  原文語言:中文
1.一种关机控制电路,应用在电池供电的电子产品中,在所述电子产品中设置有电源管理电路、系统主电路和在电子产品使用关机时要求持续运行的特定功能电路;其特征在于:在所述电源管理电路中设置有为系统主电路供电的第一电源转换芯片和为所述特定功能电路供电的第二电源转换芯片;在所述电子产品上设置有开机按键和全关机按键,所述开机按键的一端连通电池的正极,另一端连通第一电源转换芯片的使能端,在开机按键按下时,控制第一电源转换芯片使能,将电池电压转换成系统电压,为系统主电路供电;所述全关机按键的一端连通所述的系统电压,另一端连通系统主电路,所述系统主电路在检测到全关机按键按下时,输出全关机信号控制第二电源转换芯片停止运行,切断所述特定功能电路的供电,并控制系统主电路关机。 A shutdown control circuit, used in battery-powered electronic products, set a specific function circuit power management circuits, systems and the main circuit when the electronic product shutdown requires continuous operation in the electronic products; characterized : Set promising system main circuitry of the first power conversion chip and to the specific function of a second power conversion circuitry in the power management circuit chip; and provided with a power button and a full shutdown button on the electronic products the positive end of the communication start button battery, the other end of communication between the first power conversion chip enable terminal, when the power button is pressed, the control of the first power conversion chip enabled, the battery voltage into the system voltage, as main circuit power supply system; end of the full shutdown of the key communication system voltage, the other end of the communication system of the main circuit, the main circuit when the system detects a full shutdown button is pressed, the shutdown signal output full control of the second power converter Chip stop running, the power supply circuit of the specific function cut off the main circuit and control system.
2.根据权利要求1所述的关机控制电路,其特征在于:在所述系统主电路中设置有主控芯片和与其连接的外围功能电路,所述全关机按键连接在电池与所述主控芯片之间; 在电子产品处于开机运行状态时,若主控芯片检测到所述全关机按键被按下,则首先输出全关机信号控制所述特定功能电路关闭,其次控制所述的外围功能电路关机,最后控制第一电源转换芯片停止运行,切断系统主电路的供电,实现全系统关机; 在电子产品处于使用关机状态时,若需要控制电子产品转入全系统关机模式,则同时按下所述的开机按键和全关机按键,所述第一电源转换芯片在开机按键按下时使能运行,为主控芯片供电;所述主控芯片在上电运行后首先检测全关机按键是否按下,若未被按下,则判定进入开机模式,输出控制信号维持第一电源转换芯片使能运行,并控制系统主电路开机运行;若全关机按键被按下,则判定进入全关机模式,直接输出全关机信号控制所述的第二电源转换芯片和特定功能电路停止运行。 2. The shutdown control circuit according to claim 1, characterized in that: the system provided in the main circuit in the main chip and peripheral function circuits connected to it, the whole shutdown button connected to the battery and the master between the chip; in the electronic product is powered operating state, if the master chip detects the full shutdown button is pressed, the first output signal for controlling the whole shutdown particular function circuit closes, followed by the control circuit of said peripheral functions shutdown, and finally control the first power conversion chip stopped running, cutting off the power supply system of the main circuit, to achieve a system-wide shutdown; in the use of electronic products in the off state, if necessary to control electronics into a system-wide shutdown mode, simultaneously press the said the start button and full-off button, the first power conversion chip when the power button is pressed enable operation, as the main chip supply; the main chip in after the first detection of power to run a full shutdown button is pressed , If it is not pressed, it is determined to enter the boot mode, the output control signal to maintain the first power conversion chip enable operation and control system of the main circuit switched on; if a full shutdown button is pressed, it is determined to enter the full shutdown mode, direct Full shutdown signal for controlling the output of the second power conversion chip and specific functional circuit stops running.
3.根据权利要求2所述的关机控制电路,其特征在于:在所述第一电源转换芯片的使能端与系统地之间连接有储能电容和放电电阻,在同时按下开机按键和全关机按键控制电子产品在使用关机状态下全关机时,所述储能电容在开机按键按下的期间内接收并储能电池电能,在开机按键断开时,通过放电电阻放电,延迟第一电源转换芯片关闭的时间,为主控芯片提供其完成全关机信号的输出以及数据保存工作所需的运行时间。 3. The shutdown control circuit according to claim 2, wherein: the first power conversion chip enable terminal and connected to the storage capacitor and discharge resistor between systems, at the same time press the power button and When the full-shutdown button control electronic products use off full shutdown, the storage capacitor and the storage battery power received during the period of the start button is pressed, when the power button off, through discharge resistor discharge, delayed first power conversion chip off time, as the main chip to provide run-time required to complete a full shutdown of its output signal and a data save your work.
4.根据权利要求3所述的关机控制电路,其特征在于:所述第一电源转换芯片的使能端连接一双二极管器件的阴极,所述双二极管器件的阴极对接,两个阳极分别与所述的开机按键和主控芯片一一对应连接;所述主控芯片在需要控制整机开机运行时,输出开机信号通过所述的双二极管器件传输至第一电源转换芯片的使能端,控制第一电源转换芯片持续使能运行。 The shutdown control circuit according to claim 3, characterized in that: said first power conversion chip enable terminal connected to the cathode of diode device pair, the cathode dual diode docking device, respectively, and the two anodes power button and correspondence described master chip connection; the need to control the main chip in the machine switched on, the output power signal through the dual diode device is transmitted to the first power conversion chip enable terminal, control The first power conversion chip enable continuous operation.
5.根据权利要求1所述的关机控制电路,其特征在于:在所述电子产品上设置有触摸屏,在电子产品处于开机运行状态时,通过操作触摸屏调取关机界面,通过操作关机界面仅控制所述的系统主电路关机,控制电子产品进入使用关机状态。 5. The shutdown control circuit according to claim 1, characterized in that: said electronic product is provided with a touch screen, when the electronic product is powered operating state, by operating the touch screen interface retrieval off, by operating the shutdown interface control only The system shut down the main circuit, control the use of electronic products to enter the off state.
6.根据权利要求1至5中任一项所述的关机控制电路,其特征在于:所述第二电源转换芯片的使能端连接一开关电路,所述开关电路在接收到系统主电路输出的所述全关机信号时动作,拉低第二电源转换芯片的使能端的电位,控制第二电源转换芯片停止运行;所述系统主电路在从全系统关机状态转入开机状态时,输出高电平有效的使能信号至所述第二电源转换芯片的使能端,控制第二电源转换芯片使能运行,将电池电压转换成所述特定功能电路所需的工作电压,为所述特定功能电路供电,并将输出的所述工作电压反馈至第二电源转换芯片的使能端,维持第二电源转换芯片持续运行。 Shutdown control circuit according to any one of claims 1-5 claims, characterized in that: said second power conversion chip enable terminal connected to a switching circuit, the switching circuit receiving the output of the main circuit system the full shutdown signal action, pulled the second power conversion chip enable terminal of the potential control the second power conversion chip to stop running; when the system is transferred to the main circuit switched from a system-wide shutdown, the output high active-enable signal to the second power conversion chip enable terminal, to control the second power conversion chip enable operation, the battery voltage into the specific functional circuit operating voltage required for the specific the work function of the circuit power supply voltage, and outputs the feedback to the second power conversion chip enable terminal, a second power conversion chip to maintain continuous operation.
7.根据权利要求6所述的关机控制电路,其特征在于:在所述开关电路中设置有一 N沟道MOS管,所述MOS管的栅极接收所述的全关机信号,漏极连接第二电源转换芯片的使能端,源极接地;通过所述系统主电路输出的所述使能信号通过一防反偏二极管传输至所述第二电源转换芯片的使能端。 7. The control circuit according to claim 6, wherein the shutdown, characterized in that: in said switching circuit is provided with an N-channel MOS transistor, a gate of the MOS transistor receiving said full shutdown signal, a drain connected to the first Two power conversion chip enable terminal, the source is grounded; enable signal by said system main circuit output by an anti-reverse-biased diode transmitted to the second power conversion chip enable terminal.
8.根据权利要求1至5中任一项所述的关机控制电路,其特征在于:所述特定功能电路为实时时钟电路,生成时钟信号传输至所述的系统主电路。 8. The shutdown control circuit according to claim 1 to 5 according to any one of claims, characterized in that: said specific function circuit is a real-time clock circuit, generates a clock signal is transmitted to the main circuit of the system.
9.根据权利要求1至5中任一项所述的关机控制电路,其特征在于:所述开机按键和全关机按键为不具有保持功能的机械按键,所述全关机按键安装在电子产品的外壳内,所述开机按键外露电子产品的外壳。 According to claim 1 to 5 off any one of the control circuit, characterized in that: the power button and a full shutdown button that does not have to maintain the function of mechanical buttons, the whole shutdown button installed in the electronic products within the housing, the power button exposed electronics housings.
10.一种电子产品,其特征在于:设置有如权利要求1至9中任一项所述的关机控制电路。 An electronic product, comprising: setting like shutdown control circuit according to any one of claims 9.
說明  原文語言:中文
关机控制电路及具有所述关机控制电路的电子产品 Off control circuit and shutdown control circuit having the electronic products

技术领域 TECHNICAL FIELD

[0001] 本发明涉及一种用于控制电子产品关机的电路结构设计,具体地说,是涉及一种可支持主系统关机和全系统关机两种模式的关机控制电路以及采用这种关机控制电路设计的电子产品。 [0001] The present invention relates to a method for controlling electronic products off the circuit design, particularly, to a host system that supports a system-wide shutdown and shutdown modes of shutdown control circuit and the use of such a shutdown control circuit design of electronic products.

背景技术 Background technique

[0002] 随着科技的进步,穿戴类电子产品被越来越多的消费者所青睐并广泛使用,其所能实现的功能也日益增多。 [0002] With the advancement of technology, wearable electronics products have been favored by more and more consumers and widely used, it can realize the function are increasing. 由于目前的穿戴类电子产品,其尺寸普遍较小,重量很轻,这就决定了适合这类电子产品使用的电池,其在体积和电池容量上都普遍较小。 Due to the current wearable electronics products, its size is generally small, very light weight, which determines the appropriate use of such electronic product battery, which are generally small in size and battery capacity.

[0003] 为了使消费者在初次拿到该类电子产品时能够直接进行开机体验,生产厂商在产品出厂前都会给产品内部的电池预充少部分电量。 [0003] In order to get the kind of consumer electronic products during the initial boot can directly experience, manufacturers in the factory before the internal battery will give the product a small part of the pre-charge power. 由于现在的很多穿戴类电子产品具有显示时间的功能,为了保证计时的准确性,目前生产厂商在进行电路设计时,都是设计产品内部的实时时钟芯片始终保持上电运行模式,即使是在电子产品处于关机状态仍持续工作,由此便导致了产品电量的持续消耗。 Now that's a lot of wearable electronics products with functional display time, in order to ensure the accuracy of the timing, the current manufacturers during circuit design, interior design products are the real-time clock chip has always maintained power mode of operation, even in electronic Products continued to work in a shutdown state, which will lead to a sustained electricity consumption of the product.

[0004] 由于电子产品在出厂后,可能会在库房中存放很长一段时间后才能到达消费者的手中,若库房存放的时间过长,会出现电子产品的电池电量消耗殆尽,无法开机的问题,从而导致消费者在购买时因无法正常开机体验而降低其购买的意愿。 [0004] As electronic products in the factory, it may be stored in a warehouse after a long period of time to reach the hands of consumers, if the warehouse stored for too long, there will be an electronic product's battery exhausted, unable to boot , which may lead consumers to buy because not boot experience and reduce their willingness to buy.

[0005] 因此,如何尽量减小穿戴类电子产品的关机损耗,确保在其从出厂到消费者手中的这段时间内电池的电量消耗最低,即便是在库房中保存了很长时间,在消费者初次拿到时也能保证其可以正常开机完成初次体验,是目前很多采用电池供电的电子产品普遍面临的一个问题。 [0005] Therefore, how to minimize losses worn off electronics products, to ensure that within the factory to the hands of consumers this time the battery run low, even in the warehouse stored for a long time, in the consumer who for the first time when it can get but also to ensure the completion of the initial boot experience is an issue currently many battery-powered electronic products generally facing.

发明内容 SUMMARY OF THE INVENTION

[0006] 本发明的目的在于提供一种支持主系统关机和全系统关机两种模式的关机控制电路,通过控制电子产品在出厂时整个系统全部关机,由此可以最大限度地降低电子产品内部电池的电量消耗,延长电子产品充电后的库房存放时间。 [0006] The object of the present invention is to provide a support for the main system shutdown and system-wide shutdown modes of shutdown control circuit, the control electronics shut down the entire system all at the factory, which can minimize electronic products within the battery power consumption and prolong the Treasury after the electronic products charge storage time.

[0007] 为解决上述技术问题,本发明采用以下技术方案予以实现: [0007] In order to solve the above technical problem, the present invention employs the following technical scheme to be implemented:

一种关机控制电路,应用在电池供电的电子产品中,在所述电子产品中设置有电源管理电路、系统主电路和在电子产品使用关机时要求持续运行的特定功能电路;在所述电源管理电路中设置有为系统主电路供电的第一电源转换芯片和为所述特定功能电路供电的第二电源转换芯片;在所述电子产品上设置有开机按键和全关机按键,所述开机按键的一端连通电池的正极,另一端连通第一电源转换芯片的使能端,在开机按键按下时,控制第一电源转换芯片使能,将电池电压转换成系统电压,为系统主电路供电;所述全关机按键的一端连通所述的系统电压,另一端连通系统主电路,所述系统主电路在检测到全关机按键按下时,输出全关机信号控制第二电源转换芯片停止运行,切断所述特定功能电路的供电,并控制系统主电路关机。 A shutdown control circuit, used in battery-powered electronic products, set a specific function circuit power management circuits, systems and the main circuit when the electronic product shutdown requires continuous operation in the electronic products; in the Power Management circuit in the main circuit power supply system set up promising first power conversion chip and to the specific function of a second power conversion circuitry chip; on the electronic product is provided with a full shutdown button power button and the power button communicating the positive end of the battery and the other end of the communication between the first power conversion chip enable terminal, when the power button is pressed, the control of the first power conversion chip enabled, the battery voltage into a system voltage for the main circuit power supply system; the One end of a full shutdown of the keys of said communication system voltage, the other end of the communication system of the main circuit, the main circuit when the system detects a full shutdown button is pressed, output full shutdown signal to control the second power conversion chip stopped running, cutting off the said power supply circuit of specific functions, and the control system of the main circuit shutdown.

[0008] 进一步的,在所述系统主电路中设置有主控芯片和与其连接的外围功能电路,所述全关机按键连接在电池与所述主控芯片之间;在电子产品处于开机运行状态时,若主控芯片检测到所述全关机按键被按下,则首先输出全关机信号控制所述特定功能电路关闭,其次控制所述的外围功能电路关机,最后控制第一电源转换芯片停止运行,切断系统主电路的供电,实现全系统关机;在电子产品处于使用关机状态时,若需要控制电子产品转入全系统关机模式,则可以同时按下所述的开机按键和全关机按键,所述第一电源转换芯片在开机按键按下时使能运行,为主控芯片供电;所述主控芯片在上电运行后首先检测全关机按键是否按下,若未被按下,则判定进入开机模式,输出控制信号维持第一电源转换芯片使能运行,并控制系统主电路开机运行;若全关机按键被按下,则判定进入全关机模式,不启动所述的外围功能电路,而是直接输出全关机信号控制所述的第二电源转换芯片和特定功能电路停止运行,实现全系统关机。 [0008] Further, the system is provided with a main circuit in the main chip and peripheral function circuits connected to it, the whole shutdown button connected between the battery and the master chip; electronic products in the power running state , if the main chip detects the full shutdown button is pressed, the first output signal for controlling the whole shutdown particular function circuit closes, followed by the control circuit of the peripheral functions of the shutdown, and finally control the first power conversion chip stop running , cut off the power supply system of the main circuit, to achieve a system-wide shutdown; in the use of electronic products in the off state, if necessary to control electronics into a system-wide shutdown mode, you can press the power button and the button at the same time a full shutdown, the said first power conversion chip when the power button is pressed enable operation, as the main chip supply; the main chip in after the first detection of power to run a full shutdown button is pressed, If it is not pressed, it is determined to enter boot mode, the output control signal to maintain a first power conversion chip enable operation and control system of the main circuit switched on; if full shutdown button is pressed, it is determined to enter the full shutdown mode, do not start the peripheral function circuit, but Full shutdown signal output directly controlling said second power conversion chip and specific functional circuit stops running, implement a system-wide shutdown.

[0009] 为了保证主控芯片在完成必须的工作前不会断电,本发明在所述第一电源转换芯片的使能端与系统地之间连接有储能电容和放电电阻,在同时按下开机按键和全关机按键控制电子产品在使用关机状态下全关机时,所述储能电容在开机按键按下的期间内接收电池输出的电能并进行存储,在开机按键断开时,通过放电电阻放电,以延迟第一电源转换芯片关闭的时间,从而为主控芯片预留出足够的运行时间,以保证主控芯片能够完成全关机信号的输出以及数据保存等相关工作。 [0009] In order to ensure the main chip must be completed before the job is not power, the present invention in the first power conversion chip enable terminal and there is storage capacitor and discharge resistor connected between the systems at the same time press When the boot keys and full shutdown button control electronic products use off full shutdown, the output power of the battery energy storage capacitor receives during the period of the start button is pressed and stored, when the power button off, through discharge discharge resistance to delay the first power conversion chip off time, which is the master chip set aside enough run time to ensure that the main chip to complete a full shutdown signal output, and data storage and other related work.

[0010] 为了保证在控制电子产品开机运行时,即便开机按键断开,系统主电路也能有持续的电力供应,本发明将所述第一电源转换芯片的使能端连接一双二极管器件的阴极,所述双二极管器件的阴极对接,两个阳极分别与所述的开机按键和主控芯片一一对应连接;所述主控芯片在需要控制整机开机运行时,输出开机信号通过所述的双二极管器件传输至第一电源转换芯片的使能端,控制第一电源转换芯片持续使能运行,以持续为系统主电路供电。 [0010] In order to ensure the control electronics when switched on, even if the power button off, the system can also have sustained the main circuit power supply, the present invention will be the first power conversion chip enable terminal connected to the cathode of one pair of diode device cathode butt of the dual diode device, two anodes are connected with the power button and the correspondence of the master chip; and the need to control the main chip in the machine switched on, the output signal of the power of Dual diode device transfer to the first power conversion chip enable terminal, control the first power conversion chip enable continued operation to sustain the system's primary circuit.

[0011] 作为控制所述电子产品进入使用关机模式的一种优选设计方案,本发明在所述电子产品上设置触摸屏,在电子产品处于开机运行状态时,通过操作触摸屏调取关机界面,通过操作关机界面仅控制所述的系统主电路关机,实现电子产品的使用关机。 [0011] as the control of the electronic products to enter the off mode using a preferred design, the present invention is set on the touch-screen electronic products, electronic products in the boot when running, by operating the touch screen interface and obtain off by operating Shutdown interface controls only the main circuit system shutdown, realization of electronic products using shutdown.

[0012] 为了对第二电源转换芯片的运行实现有效地控制,在所述第二电源转换芯片的使能端连接一开关电路,所述开关电路在接收到系统主电路输出的所述全关机信号时动作,拉低第二电源转换芯片的使能端的电位,控制第二电源转换芯片停止运行,切断特定功能电路的供电而进入全系统关机状态;所述系统主电路在从全系统关机状态转入开机状态时,输出高电平有效的使能信号至所述第二电源转换芯片的使能端,控制第二电源转换芯片使能运行,将电池电压转换成所述特定功能电路所需的工作电压,为所述特定功能电路供电,并将输出的所述工作电压反馈至第二电源转换芯片的使能端,维持第二电源转换芯片持续运行,控制所述特定功能电路的持续上电运行。 [0012] In order to run the second power conversion chip implementation of effective control, the second power conversion chip enable terminal connected to a switching circuit, the switching circuit in the main circuit receiving the output of the entire system shutdown signal operation, low second power conversion chip enable terminal of the potential control of the second power conversion chip stops running, disconnect the power supply circuit of specific functions into a system-wide shutdown state; the system at the main circuit from a system-wide shutdown state When turned into outputs effectively enable high signal to the second power conversion chip enable terminal, to control the second power conversion chip enable operation, the battery voltage into a desired function of the particular circuit operating voltage for the particular function circuitry, and will continue to function on a particular output circuit is fed back to the operating voltage of the second power conversion chip enable terminal, a second power conversion chip to maintain continuous operation, the control of the electric operation.

[0013] 优选的,在所述开关电路中设置有一N沟道MOS管,所述MOS管的栅极接收所述的全关机信号,漏极连接第二电源转换芯片的使能端,源极接地;通过所述系统主电路输出的所述使能信号通过一防反偏二极管传输至所述第二电源转换芯片的使能端。 [0013] Preferably, in the switching circuit is provided with an N-channel MOS transistor, a gate of the MOS transistor receiving said full shutdown signal, a drain connected to the second power conversion chip enable terminal, a source grounding; enable signal by said system main circuit output by an anti-reverse-biased diode transmitted to the second power conversion chip enable terminal.

[0014] 优选的,所述特定功能电路可以是实时时钟电路,用于生成时钟信号并传输至所述的系统主电路,由此可以在电子产品上实现显示实时时钟的功能。 [0014] Preferably, the specific function circuit may be a real-time clock circuit for generating a clock signal, and transmitted to the main circuit of the system, which can be implemented on the electronic display products in real-time clock function.

[0015] 优选的,所述开机按键和全关机按键优选采用不具有保持功能的机械按键,所述全关机按键优选安装在电子产品的外壳内,仅供技术人员在电子产品出厂前操作使用;而所述的开机按键可以外露电子产品的外壳,供技术人员和普通用户使用。 [0015] Preferably, the power button and a full shutdown button does not have the hold function is preferable to use mechanical keys, the full-shutdown button is preferably mounted in the electronics housing for technical staff in front of the electronic products factory operational use; And the boot keys exposed electronics housings for technical personnel and ordinary users.

[0016] 基于上述关机控制电路的结构设计,本发明还提出了一种采用所述关机控制电路设计的电子产品,所述电子产品采用电池供电;在所述电子产品中设置有电源管理电路、系统主电路和在电子产品使用关机时要求持续运行的特定功能电路;在所述电源管理电路中设置有为系统主电路供电的第一电源转换芯片和为所述特定功能电路供电的第二电源转换芯片;在所述电子产品上设置有开机按键和全关机按键,所述开机按键的一端连通电池的正极,另一端连通第一电源转换芯片的使能端,在开机按键按下时,控制第一电源转换芯片使能,将电池电压转换成系统电压,为系统主电路供电;所述全关机按键的一端连通所述的系统电压,另一端连通系统主电路,所述系统主电路在检测到全关机按键按下时,输出全关机信号控制第二电源转换芯片停止运行,切断所述特定功能电路的供电,并控制系统主电路关机。 [0016] preceding shutdown control circuit structure-based design of the present invention also proposes a shutdown control circuit employing the design of electronic products, the battery-powered electronic products; power management circuitry is provided in the electronic products, system main circuit and the specific function of the circuit when the electronic product shutdown requires continuous operation; promising system set up in the main circuitry of the power management circuitry chip first power conversion circuit and to the specific function of a second power supply conversion chip; on the electronic product is provided with a full shutdown button power button and the power button communicating the positive end of the battery, the other end of the communication between the first power conversion chip enable terminal, when the power button is pressed, control The first power conversion chip enabled, the battery voltage into a system voltage for the main circuit power supply system; end of the full shutdown of the key communication system voltage, the other end of the communication system of the main circuit, the main circuit in the detection system when full shutdown button is pressed, the output signal to control the second full shutdown power conversion chip stops running, the power supply circuit of the specific function cut off the main circuit and control system.

[0017] 与现有技术相比,本发明的优点和积极效果是:本发明通过在电子产品中设计全系统关机功能,在电子产品出厂时,可以控制电子产品进入全系统关机模式,以最大限度地降低电池电量的消耗,保证电子产品在充电出厂后,即便是在库房中存放了很长时间,在到达消费者手中时也能照常开机运行,完成消费者的初次体验,由此消除了因无法开机问题对消费者购买意愿造成的影响。 [0017] Compared with the prior art, the advantages and positive effects of the present invention are: the present invention by designing a system-wide shutdown in electronic products, electronic products at the factory, you can control the electronic products into a system-wide shutdown mode, the maximum limits to reduce the drain on the battery to ensure that electronic products factory after charging, even is located in a warehouse for a long time, when it reaches the hands of consumers can start running as usual, to complete the initial experience of consumers, thereby eliminating due to inability to boot problems caused by the purchase intention of consumers. 本发明所提出的关机控制技术尤其适合应用在电池容量较小的穿戴类电子产品中,以尽可能地延长该类电子产品的库存时间。 The present invention is proposed shutdown control technology is particularly suitable for use in battery capacity is smaller wearable electronics products to extend the class of electronic products inventory time as possible.

[0018] 结合附图阅读本发明实施方式的详细描述后,本发明的其他特点和优点将变得更加清楚。 [0018] DRAWINGS detailed description of embodiments of the present invention, the other features and advantages of the present invention will become more apparent.

附图说明 Brief Description

[0019] 图1是本发明所提出的关机控制电路中系统主电路的一种实施例的电路原理图; 图2是为图1所示系统主电路提供电源供给的一种实施例的系统主电源电路原理图; 图3是用于控制图2所示系统主电源电路的一种实施例的控制电路原理图; [0019] FIG. 1 is a shutdown control circuit in the main circuit of the system proposed by the invention circuit schematic embodiment; Figure 2 is the system's primary circuit of Figure 1 provides a power supply system main embodiment Power circuit diagram; Figure 3 is a system for controlling the power supply circuit shown in Figure 2. The main control circuit schematic diagram of an embodiment;

图4是本发明所提出的关机控制电路中特定功能电路的一种实施例的电路原理图; Figure 4 is a proposed shutdown of the invention the control circuit in a particular functional circuit schematic circuit diagram of an embodiment;

图5是为图4所示特定功能电路提供电源供给的一种实施例的电源电路原理图。 Figure 5 is a circuit shown in FIG. 4 provides a specific function of the power supplied to the power circuit diagram of an embodiment.

具体实施方式 DETAILED DESCRIPTION

[0020] 下面结合附图对本发明的具体实施方式作进一步详细地说明。 [0020] the following with reference to the specific embodiments of the present invention will be described in further detail.

[0021] 本实施例针对采用电池供电的电子产品设计电源电路,为了最大限度地减少电池电量的消耗,尽可能地延长该类电子产品的库房存放时间,保证消费者在购买该类电子产品时能够正常开机完成初次体验,本实施例在所述电子广品中设计全新的关机控制电路,在保留传统的使用关机处理模式的基础上,增加了全系统关机控制模式,通过控制电子产品内部的系统电路全部关闭,从而最大程度地节省了电能。 When [0021] The present embodiment is directed to the use of battery-powered electronic power circuit design, in order to minimize the battery power consumption as much as possible to extend the class of electronic products warehouse storage time, to ensure that consumers in the purchase of such electronic products normal boot to complete the initial experience, the present embodiment is designed in a new shutdown control circuit of the electronic products in the wide, while retaining the traditional mode using the shutdown process, based on the increase in system-wide shutdown control mode, control electronics inside all closed system circuit, in order to maximize energy savings.

[0022] 下面以穿戴类电子产品为例,对本实施例所提出的关机控制电路的具体电路结构及其工作原理进行详细阐述。 [0022] The following wearable electronics, for example, elaborate example of this shutdown of the proposed control circuit specific circuit structure and how it works to implement.

[0023] 在目前的绝大多数穿戴类电子产品中,其内部的系统主电路部分通常设计成可以由用户对其进行开关机控制,而对于系统中的某些特定功能电路,例如实时时钟电路等,为了保证计时时间的准确性,即使用户执行了关机操作,这部分功能电路也不会关机,仍在持续运行,由此造成了对电池电量的持续消耗。 [0023] In the present majority of wearable electronics, the system main circuit portion of its interior is typically designed to be controlled by the user switch to it, and for the system of certain functional circuits, such as real-time clock circuit etc., in order to ensure the accuracy of the timing of time, even if the user performs a shutdown operation, this part of the function of the circuit will not be shut down, continues to run, thus resulting in a continued consumption of battery power.

[0024] 由于这部分特定功能电路所实现的功能在电子产品从出厂到拿到消费者手中的这段期间可能并不是必须的,因此为了延长电子产品出厂后在库房的存放时间,本实施例提出了一种控制这部分特定功能电路在电子产品库存的期间内关闭,而在用户使用后不间断运行的设计思想,继而在保证电子产品现有功能不变的前提下,减少了产品在库存期间的电量消耗,延长了产品的库存时间。 [0024] As part of this particular function circuit functions implemented in electronic products from the factory to the hands of consumers during this period may not be necessary to get, so in order to extend the storage time in the warehouse after the electronic products manufactured in this embodiment This section presents a control circuit closes the specific features of electronic products inventory during the period, but after users uninterrupted operation of design ideas, and then to ensure existing functionality of electronic products under the same premise, reducing the product in stock During power consumption, extending the product's inventory time.

[0025] 为了实现上述设计目的,本实施例在电子产品上设计了开机按键SWl和全关机按键SW2,结合图1-图3所示,所述开机按键SWl和全关机按键SW2优选采用目前常用的不具有保持功能的机械按键实现。 [0025] To achieve the above design objects, the present embodiment in the design of electronic products power button SWl and full shutdown button SW2, as shown in Figs. 1 to 3 in conjunction, the power button SWl and full shutdown is preferable to use the most commonly used keys SW2 It does not have the hold function to achieve mechanical buttons. 其中,开机按键SWl用于对电子产品进行开机控制,连接在电子产品内部的电池与系统主电源电路之间。 Among them, the power button SWl electronic products for power control, connection between the electronic products and systems inside the battery main power supply circuit. 具体来讲,可以将开机按键SWl的一端连接电池的正极VBAT,另一端连通系统主电源电路中的第一电源转换芯片U5的使能端CE。 Specifically, you can boot the positive end button SWl VBAT battery connector and the other end of the communication system of the main power circuit U5 first power conversion chip enable terminal CE. 所述第一电源转换芯片U5用于将电池电压转换成系统主电路所需的工作电压(以下称为系统电压VSYS_3V0),为系统主电路供电,具体可选用低压差线性稳压器LDO或者DC-DC转换器实现电池电压到系统电压VSYS_3V0的转换。 The first power conversion chip U5 for battery voltage into system main circuitry required operating voltage (hereinafter referred to as system voltage VSYS_3V0), the main circuit power supply for the system, in particular the choice of low-dropout linear LDO regulator or DC -DC converter to the battery voltage to the system voltage VSYS_3V0 conversion.

[0026] 本实施例将第一电源转换芯片U5的输入端VDD连接电池的正极VBAT,并通过电容C3接地,利用电容C3对电池输出的电压进行滤波处理,以保证输入到第一电源转换芯片U5的电压稳定。 [0026] The present embodiment will first positive VBAT power conversion chip U5 VDD input terminal connected to the battery and to ground through a capacitor C3 using capacitance C3 of the battery output voltage filtering process to ensure that the input to the first power conversion chip U5 of voltage stability. 将第一电源转换芯片U5的输出端VOUT连接系统主电路,并通过设计滤波电容C5来保证提供给系统主电路的系统电压VSYS_3V0稳定。 The first power conversion chip U5 output terminal VOUT main circuit connection system, and through the design of the filter capacitor C5 provided to the system to ensure that the main circuit of the system voltage VSYS_3V0 stable.

[0027] 在系统主电路中设计有主控芯片U2和与其连接的外围功能电路(图中未示出)。 [0027] In the system design of the main circuit U2 and its main chip peripheral function circuit (not shown) is connected. 在本实施例中,所述主控芯片U2作为整个系统的控制核心,可以选用单片机MCU或者CPU。 In this embodiment, the main control chip U2 as the control center of the whole system, you can use single-chip MCU or CPU. 由于开机按键SWl不具有保持功能,当用户按下后松手,开机按键SWl会立即断开,继而导致第一电源转换芯片U5停止使能。 Since the start button SWl not have to keep feature, when a user presses let go, immediately disconnect the power button SWl, and then lead the first power conversion chip U5 stop enabled. 为了保证用户在按下开机按键SWl控制电子产品开机时,第一电源转换芯片U5能够持续输出系统电压VSYS_3V0,保证系统主电路持续上电运行,本实施例设计主控芯片U2在进入开机运行模式后,输出高电平有效的开机信号PWR_0N_CTL,传输至第一电源转换芯片U5的使能端CE,控制第一电源转换芯片U5继续使能运行。 In order to ensure that users press the power button SWl control electronics power, the first power conversion chip U5 voltage output system can continue VSYS_3V0, ensure that the system continued on the main circuit power to run, for example, the main chip design U2 present embodiment entering boot operation mode After the start signal output active high PWR_0N_CTL, transmitted to the first power conversion chip U5 enable terminal CE, control of the first power conversion chip U5 continues to run.

[0028] 作为本实施例的一种优选设计方式,本实施例在系统主电源的控制电路中设计了一个双二极管器件D2,如图3所示。 [0028] As a preferred design of the present embodiment, this embodiment, the system main power supply control circuit in the design of a dual-diode device D2, as shown in Figure 3. 所述双二极管器件D2的两个阴极对接,并与第一电源转换芯片U5的使能端CE相连接,双二极管器件D2的两个阳极一个连接所述的开机按键SWl,另一个连接所述主控芯片U2输出开机信号PWR_0N_CTL的引脚,例如主控芯片U2的其中一路GP1 口P0.10。 The dual diode D2 of two cathodes docking device, and with the first power conversion chip enable terminal CE U5 is connected to two anodes double diode device D2 is connected to a power button SWl said, another connection the U2 master chip output power signal PWR_0N_CTL pin, for example, the way in which the master chip U2 GP1 port P0.10. 利用二极管器件的反向截止特性,保证通过按压开机按键SWl产生的使能信号以及通过主控芯片U2输出的开机信号PWR_0N_CTL能够以正确的流向传送至第一电源转换芯片U5的使能端CE,控制第一电源转换芯片U5在电子产品开机运行的期间内持续使能运行。 The use of reverse-blocking diode device characteristics and ensure the enable signal generated by pressing the start button, and can be transmitted to SWl start signal PWR_0N_CTL by master chip U2 output to the correct flow to the first power conversion chip enable U5 can end CE, control of the first power conversion chip U5 during the period of continuous operation of the power electronics enable operation.

[0029] 在第一电源转换芯片U5的使能端CE与系统地之间还分别连接有储能电容C4和放电电阻R8,如图2所示,以用于延迟第一电源转换芯片U5关断的时序。 [0029] In the first power conversion chip enable terminal U5 between CE and systematically respectively connected to the storage capacitor C4 and discharge resistor R8, shown in Figure 2, for delaying the first power conversion chip U5 Off off timing. 此部分电路的工作原理将在后续的描述中具体阐述。 How this part of the circuit will be specifically addressed in the subsequent description.

[0030] 全关机按键SW2用于控制电子产品的整个系统电路全部关闭,本实施例将其连接在第一电源转换芯片U5的输出端VOUT与主控芯片U2的其中一路GP1 口P0.28之间,如图1所示。 [0030] The entire system-wide shutdown button SW2 circuit for controlling electronic products all off, this embodiment is connected to the first power conversion chip U5 output terminal VOUT and the way in which the master chip U2 port P0.28 of GP1 between, as shown in Figure 1. 当主控芯片U2检测到所述全关机按键SW2按下时,即其GP1 口P0.28由低电平跳变成高电平时,输出全关机信号RTC_LD0_SHUT (可以由主控芯片U3另外一路GP1 口P0.09输出)至电子产品中的特定功能电路,控制所述特定功能电路关闭。 When the master chip U2 detecting the full shutdown button SW2 is pressed, that is, its GP1 P0.28 mouth when jumping from the low to the high level, the output of the full shutdown signal RTC_LD0_SHUT (may additionally all the way from the main chip U3 GP1 output port P0.09) to the electronic product specific functional circuit, a control circuit closes the specific function.

[0031 ] 在本实施例中,所述特定功能电路优选以实时时钟电路为例进行说明,包括第二电源转换芯片Ul和实时时钟芯片U4等主要组成部分,结合图4、图5所示。 [0031] In the present embodiment, the specific function circuit is preferably a real-time clock circuit as an example, include a major component of the second power conversion chip Ul and real-time clock chip U4, combined with Figure 4, Figure 5. 所述第二电源转换芯片Ul同样可以选用低压差线性稳压器LDO或者DC-DC转换器,用于将电池电压转换成所述实时时钟芯片U4所需的工作电压RTC_3V0,为实时时钟芯片U4供电。 The second power conversion chip Ul can also choose low-dropout linear LDO regulator or DC-DC converter for converting the battery voltage to the real-time clock chip operating voltage RTC_3V0 U4 required for real-time clock chip U4 powered by.

[0032] 具体来讲,可以将第二电源转换芯片Ul的输入端VDD连接电池的正极VBAT,并通过滤波电容C2接地;将第二电源转换芯片Ul的输出端VOUT连接实时时钟芯片U4的供电端VDD,并通过滤波电容Cl、C7对第二电源转换芯片Ul转换输出的工作电压RTC_3V0进行滤波处理。 [0032] Specifically, can the positive VBAT power conversion chip Ul second input terminal connected to the battery VDD, and through the filter capacitor C2 to ground; the second power conversion chip Ul VOUT output terminal connected to the power supply of the real-time clock chip U4 terminal VDD, and through the filter capacitor Cl, C7 to the second power conversion chip converts the output of the operating voltage Ul RTC_3V0 filtering process. 将第二电源转换芯片Ul的使能端CE—路通过限流电阻R3连接至其输出端V0UT,另一路通过一开关电路的开关通路接地,所述开关电路的控制端连接所述的主控芯片U2,接收主控芯片U2输出的全关机信号RTC_LD0_SHUT。 Ul second power conversion chip enable terminal CE- way through the current limiting resistor R3 is connected to its output V0UT, another way to ground through the switch path of a switching circuit, the switching control of the circuit connected to the master Chip U2, received a full shutdown signal RTC_LD0_SHUT master chip U2 output.

[0033] 在本实施例中,所述开关电路优选采用一颗N沟道MOS管Ql配合简单的外围电路设计而成,如图5所示。 [0033] In this embodiment, the switch circuit is preferable to use an N-channel MOS transistor Ql with a simple peripheral circuit design is made, as shown in FIG. 将N沟道MOS管Ql的栅极连接至主控芯片U2的P0.09引脚,接收主控芯片U2输出的全关机信号RTC_LD0_SHUT,并通过配置电阻R4接地。 The gate of the N-channel MOS transistor Ql is connected to the main control chip U2 of P0.09 pin receiving full shutdown signal output U2 RTC_LD0_SHUT master chip, and by configuring the resistor R4 to ground. 将所述N沟道MOS管Ql的源极接地,漏极连接第二电源转换芯片Ul的使能端CE,或者通过一颗阻值较小的电阻R5连接至第二电源转换芯片Ul的使能端CE。 The source of the N-channel MOS transistor Ql is grounded, a drain connected to the second power conversion chip Ul enable terminal CE, or connected to a second power conversion chip Ul through a smaller resistance R5 make You can end CE. 在需要控制实时时钟芯片U4关闭时,可以通过主控芯片U2输出高电平有效的全关机信号RTC_LD0_SHUT,继而控制N沟道MOS管Ql饱和导通,拉低第二电源转换芯片Ul的使能端CE的电位,控制第二电源转换芯片Ul停止运行,进而切断向实时时钟芯片U4的供电,以达到控制实时时钟芯片U4断电关机的设计目的。 The need to control the real-time clock chip U4 when closed, U2 output active high signal RTC_LD0_SHUT full shutdown by master chip, and then control the N-channel MOS transistor Ql saturated conduction, low Ul second power conversion chip enable potential terminal CE, and to control the second power conversion chip Ul stop running, turn off the power to the real-time clock chip U4, in order to control the real-time clock chip U4 power off design purpose.

[0034] 当然,所述开关电路也可以采用三极管、可控硅等其他具有开关作用的元器件进行电路的具体设计,本实施例并不仅限于以上举例。 [0034] Of course, the switching circuit may employ the specific design of the transistor, thyristor switching action with other components of the circuit, the present embodiment is not limited to the above examples.

[0035] 此外,为了在实时时钟芯片U4关闭后,能够重新启动运行,本实施例设计主控芯片U2在需要控制实时时钟芯片U4开机时,输出使能信号RTC_LD0_EN (例如通过主控芯片U2的GP1 口P0.08输出),通过防反偏二极管D105和限流电阻Rl传输至第二电源转换芯片Ul的使能端CE,控制第二电源转换芯片Ul使能运行,进而将电池电压转换成实时时钟芯片U4所需的工作电压RTC_3V0,为实时时钟芯片U4供电。 [0035] In addition, in order to shut down after the real-time clock chip U4, able to re-start to run, for example, the main chip design in the present embodiment U2 need to control real-time clock chip U4 boot, output enable signal RTC_LD0_EN (for example, by U2's main chip GP1 output port P0.08), through the anti-reverse-biased diode D105 and current limiting resistor Rl transmitted to the second power conversion chip Ul enable terminal CE, to control the second power conversion chip Ul enabled to run, and then the battery voltage into Real-time clock chip U4 desired operating voltage RTC_3V0, real-time clock chip U4 supply. 实时时钟芯片U4上电运行后,生成时钟信号,经由I2C总线SDA、SCL传输至主控芯片U2,经由主控芯片U2生成当前时钟,并通过电子产品上的显示屏输出显示。 After the real-time clock chip U4 power to run, generates a clock signal, via the I2C bus SDA, SCL is transmitted to the main control chip U2, via a master clock chip to generate the current U2, and output via the display on the electronic display products.

[0036] 下面结合图1-图5所示的电路结构,对本实施例的工作原理进行具体阐述。 [0036] below with the circuit configuration shown in Figs. 1, it will be specifically described the operation principle of the present embodiment.

[0037] 在电子产品出厂前,为了延长电子产品的库存时间,技术人员可以操作电子产品进入全系统关机模式。 [0037] In the former electronics factory, electronic products inventory in order to extend the time, technicians can operate electronic products into a system-wide shutdown mode. 针对电子产品当前所处的状态:使用关机状态或是开机状态,本实施例提出两种控制电子产品进入全系统关机模式的操作方式。 For electronic products in which the current status: the use or turned off, the present embodiment proposes two control electronic products to enter the operating mode of system-wide shutdown mode.

[0038] 若电子产品当前正处于使用关机状态(即系统主电路关闭,而特定功能电路运行),此时,可以采用同时按下开机按键SWl和全关机按键SW2的方式来控制电子产品进入全系统关机模式。 [0038] If the electronic products currently in use off state (ie, the system shut down the main circuit, and specific functional circuit operation), this time can be used simultaneously press the power button SWl and full shutdown button SW2 way to control electronics into the whole System shutdown mode. 当开机按键SWl按下时,电池电压VBAT经滤波电容C8滤波后,控制双二极管器件D2中的其中一个二极管正向导通,另一个二极管反向截止,并通过导通的二极管传输至第一电源转换芯片U5的使能端CE,控制第一电源转换芯片U5使能运行,并同时为储能电容C4充电。 When the power button is pressed SWl, the battery voltage VBAT filtered through filter capacitor C8, control Dual diode device D2 is one of the diodes is forward, another diode reverse-blocking, and the diode conduction through the transmission to the first power U5 conversion chip enable terminal CE, control of the first power conversion chip U5 is enabled to run, and at the same time as the storage capacitor C4 is charged. 第一电源转换芯片U5使能运行后,将电池电压VBAT转换成系统电压VSYS_3V0为主控芯片U2供电,使主控芯片U2开机运行。 The first power conversion chip U5 is enabled after running, the battery voltage VBAT is converted into a voltage VSYS_3V0 system as the main chip U2 power supply, so the master chip U2 start running. 主控芯片U2开机后,首先检测全关机按键SW2是否被按下,若全关机按键SW2未被按下,则判定要求进入开机模式,具体控制过程将在后续部分进行详细阐述。 After the master chip U2 on, first to detect whether a full shutdown SW2 button is pressed, if a full shutdown button SW2 is not depressed, it is determined that the requirements to enter boot mode, specific control process will be described in detail in subsequent sections. 若全关机按键SW2被按下,则判定要求进入全系统关机模式。 If the full-shutdown button SW2 is depressed, it is determined that the requirements to enter the system-wide shutdown mode. 此时,主控芯片U2输出高电平有效的全关机信号RTC_LDO_SHUT,控制N沟道MOS管Ql饱和导通,拉低第二电源转换芯片Ul的使能端CE电位,控制第二电源转换芯片Ul停止运行。 In this case, the master chip U2 output high efficient full shutdown signal RTC_LDO_SHUT, control N-channel MOS transistor Ql saturated conduction, driving down the second power conversion chip enable terminal CE Ul potential to control the second power conversion chip Ul stop running. 此时,由于第二电源转换芯片Ul不再输出实时时钟芯片U4所需的工作电压RTC_3V0,因此,实时时钟芯片U4断电停止运行。 At this time, since the second power conversion chip real-time clock chip output Ul no longer required for operating voltage U4 RTC_3V0, therefore, the real-time clock chip U4 power to stop running. 然后,主控芯片U2进入关机状态,对寄存器、存储器的数据进行保存。 Then, the master chip U2 to enter the off state, to register, memory data to be saved. 由于开机按键SWl在按下并保持一段时间后会因技术人员松手而断开,为了给主控芯片U2预留出足够的用于执行启动、输出全关机信号RTC_LD0_SHUT以及进行数据保存等工作的时间,本实施例可以采用适当调整储能电容C4的电容值以及放电电阻R8的阻值的方式来满足主控芯片U2工作时间的要求。 Because after you press the power button SWl and maintained for a period of time due to technical staff let go and off, in order to give the master chip U2 set aside enough for performing start, output full shutdown signal RTC_LD0_SHUT and data preservation work time This embodiment can be adjusted using the capacitance value of the storage capacitor C4 and the discharge resistor R8 way to meet the requirements of the main chip U2 working time. 即,当开机按键SWl断开后,储能电容C4通过放电电阻R8放电。 That is, when the power button SWl disconnected, the storage capacitor C4 discharges through discharge resistor R8. 在储能电容C4放电的期间内,第一电源转换芯片U5的使能端CE仍可以保持高电平有效状态,从而维持第一电源转换芯片U5继续使能运行,为主控芯片U2供电。 During the period of the storage capacitor C4 discharge, the first power conversion chip enable terminal CE U5 can still maintain a high active, so as to maintain the first power conversion chip U5 continue to run, as the main chip U2 power supply. 当储能电容C4放电结束时,第一电源转换芯片U5的使能端CE电位变低,第一电源转换芯片U5停止运行,切断向主控芯片U2的供电,进而控制主控芯片关机,由此便实现了全系统关机功能。 When the storage capacitor C4 discharge end, the first power conversion chip enable terminal CE U5 potential becomes low, the first power conversion chip U5 stops supplying power to the main control chip U2 is cut, then control the main chip off by This will achieve a system-wide shutdown.

[0039] 若电子产品当前正处于开机运行状态,则此时可以采用按下全关机按键SW2的方式来控制电子产品进入全系统关机模式。 [0039] If the electronic product is currently in the power-running state, you can now use a full shutdown button is pressed SW2 way to control electronic products into a system-wide shutdown mode. 当全关机按键SW2被按下时,通过第一电源转换芯片U5转换输出的系统电压VSYS_3V0经由闭合的全关机按键SW2传输至主控芯片U2的P0.28引脚。 When the full-shutdown button SW2 is pressed through the first power conversion chips U5 converts the output voltage of the system via a closed VSYS_3V0 full shutdown button SW2 is transmitted to the main control chip U2 of P0.28 pins. 主控芯片U2在检测到其P0.28引脚的电位变高时,判定要求进入全系统关机模式。 Master chip U2 when it detects the potential of its P0.28 pin goes high, determine the requirements to enter the system-wide shutdown mode. 此时,主控芯片U2首先输出全关机信号RTC_LD0_SHUT,控制第二电源转换芯片Ul和实时时钟芯片U4停止运行;其次,控制与其连接的外围功能电路关机;而后,主控芯片U2将其输出的开机信号PWR_0N_CTL置为低电平,此时储能电容C4通过放电电阻R8放电,控制第一电源转换芯片U5在维持RC时间后关闭。 In this case, the master chip U2 first output full shutdown signal RTC_LD0_SHUT, to control the second power conversion chip Ul and real-time clock chip U4 stop running; secondly, the control circuit connected to its peripheral functions shut down; then, the master chip outputs of U2 PWR_0N_CTL start signal is set low, then the storage capacitor C4 discharges through discharge resistor R8 to control the first power conversion chip U5 in the RC time maintaining close. 在储能电容C4放电的期间内,主控芯片U2对寄存器、存储器的数据进行保存,待第一电源转换芯片U5关闭时,全系统进入关机模式。 During the period of the storage capacitor C4 discharge, the master chip U2 to register, memory to save data, to be the first power conversion chip U5 shut down, the whole system into shutdown mode.

[0040] 在电子产品进入全系统关机模式后,由于没有任何电量消耗,因此可以保证电子产品在库房中存放很长时间。 [0040] In the electronic products into a system-wide shutdown mode, due to no power consumption, it can be stored for a long time to ensure that electronic products in the warehouse.

[0041] 当电子产品第一次出售到消费者手中时,可以按下开机按键SWl控制电子产品开机运行。 [0041] When the electronic products sold to consumers for the first time, you can press the power button SWl control electronics switched on. 在开机按键SWl按下时,首先利用电池电压VBAT控制第一电源转换芯片U5使能运行,为系统主电路供电。 When the power button is pressed SWl, first use the battery voltage VBAT to control the first power conversion chip U5 enable operation, the main circuit power supply for the system. 待主控芯片U2上电运行后,输出高电平的开机信号PWR_0N_CTL,通过双二极管器件D2传输至第一电源转换芯片U5的使能端CE,使第一电源转换芯片U5即便在开机按键SWl断开后也能持续使能运行,一直为系统主电路供电,实现自锁功能。 After running to be the main chip U2 electrical output signal of the high level of power PWR_0N_CTL, through the double diode device D2 is transmitted to the first power conversion chip U5 enable terminal CE, the first power conversion chip U5 even in the power button SWl After disconnecting can continue to make to run, it has been the main circuit power supply for the system to achieve the self-locking function. 而后,主控芯片U2输出高电平的使能信号RTC_LD0_EN,通过防反偏二极管D106和限流电阻Rl作用于第二电源转换芯片Ul的使能端CE,控制第二电源转换芯片Ul使能运行,输出实时时钟芯片U4所需的工作电压RTC_3V0,控制实时时钟芯片U4上电运行。 Then, the master chip U2 output high enable signal RTC_LD0_EN, through the anti-reverse-biased diode D106 and current limiting resistor Rl acting on the second power conversion chip Ul enable terminal CE, to control the second power conversion chip Ul Enable running, real time clock chip U4 output operating voltage required RTC_3V0, control the real-time clock chip U4 electrical operation. 在第二电源转换芯片Ul使能运行后,将通过第二电源转换芯片Ul输出的工作电压RTC_3V0同时经由限流电阻R3作用于第二电源转换芯片Ul的使能端CE,由此一来,即便是在主控芯片U2断电不再输出高电平的使能信号RTC_LDO_EN时,也能利用第二电源转换芯片Ul自身输出的工作电压RTC_3V0维持第二电源转换芯片Ul 一直使能运行,进而保证实时时钟芯片U4在开机和使用关机状态下都能保持运行状态,确保计时的准确性。 In the second power conversion chip Ul After enabling run through the second power conversion chip Ul output operating voltage RTC_3V0 simultaneously via current limiting resistor R3 acting on the second power conversion chip Ul enable terminal CE, whereby a result, even when the power is no longer a high-level output enable signal in the master chip RTC_LDO_EN U2, also can use a second output power conversion chip Ul own operating voltage RTC_3V0 maintain second power conversion chip Ul been enabled to run, and then ensure real-time clock chip U4 in the boot and use off can keep running, ensure the accuracy of timing.

[0042] 在消费者第一次启动所述电子产品时,需要对系统时钟进行调整,一次调整后,实时时钟芯片U4会自动累计计时时间,保证日后系统时钟的准确显示。 [0042] In the first start when the consumer electronic product, you need to adjust the system clock, after an adjustment, real-time clock chip U4 will automatically cumulative time of time, to ensure the future of the system clock accurate display. 主控芯片U2在控制特定功能电路启动运行后,输出控制信号控制与其连接的外围功能电路启动运行,完成产品开机。 Peripheral function circuit starts running after the master control chip U2 in particular functional circuit up and running, the output control signal connected thereto, the finished product is turned on.

[0043] 在消费者对所述电子产品执行了一次开机启动后,若消费者不想使用需要关机,可以通过操作电子产品的触摸屏调取出关机界面,通过操作关机界面控制电子产品进入使用关机状态。 [0043] In the consumer executed after a start-up, if consumers do not want to use the need to shut down, you can operate the touch screen electronic products taken off the transfer interface for the electronic product, by operating the shutdown interface control electronics into the use off . 当电子产品因用户操作需要进入使用关机状态,或者因电池电量不足自动关机时,主控芯片U2首先控制与其连接的外围功能电路关机,然后置开机信号PWR_ON_CTL为低电平,停止向第一电源转换芯片U5提供有效的使能信号。 When the user operates the electronic products due to the use of off need to enter, or automatically shut down due to low battery, the main chip peripheral functions U2 first control circuit connected to its shutdown, and then set a start signal PWR_ON_CTL is low, stop the first power supply conversion chip U5 provide effective enable signal. 然后,主控芯片U2进入关机状态,对寄存器、存储器的数据进行保存,待储能电容C4放电结束后,第一电源转换芯片U5停止运行,切断系统主电路的供电,系统主电路停止运行,电子产品进入使用关机状态。 Then, the master chip U2 to enter the off state, to register, memory data stored until the storage capacitor C4 discharge end, the first power conversion chip U5 stop running, cutting off the main circuit power supply system, the system stops running the main circuit, Electronic products into use off. 此时,由于第二电源转换芯片Ul和实时时钟芯片U4仍在运行,因此可以保证再次开机时,时钟显示的准确性,不用每次开机都需要重新设置时间。 At this time, since the second power conversion chip Ul and real-time clock chip U4 is still running, so you can guarantee the accuracy of the boot again, the clock display, do not need to re-set the time each boot.

[0044] 当消费者关机后需要重新开机时,只需按下开机按键SWl,控制第一电源转换芯片U5使能运行,为系统主电路供电。 [0044] When the shutdown after consumers need to re-boot, simply press the power button SWl, control the first power conversion chip U5 enable operation, the main circuit power supply for the system. 主控芯片U2启动后,将开机信号PWR_ON_CTL拉高,完成第一电源转换芯片U5的自锁,然后控制与其连接的外围功能电路开机运行,完成电子产品的开机启动。 After the master chip U2 started, the start signal is pulled PWR_ON_CTL, complete self-locking of the first power conversion chip U5, and peripheral function control circuit connected thereto start running, start to finish powering electronic products.

[0045] 考虑到不同的关机模式适用的人群不同,对于电子产品的全系统关机控制功能并不适合普通消费者使用,因此,本实施例优选将全关机按键SW2设置在电子产品的内部,例如内置于产品外壳的内部,以避免消费者触及操作。 [0045] Taking into account the different populations shutdown mode applies different control functions for the system-wide shutdown of electronic products are not suitable for general consumer use, therefore, the preferred embodiment of the present embodiment will be full off button SW2 disposed inside electronic products such as Built-in products inside the enclosure in order to avoid consumer touch operation. 而开机按键SWl则优选设置在电子产品的外壳上,或者采用在外壳上开孔外露的方式,以方便消费者操作。 The power button SWl is preferably provided on the electronic product casing, or the use of exposed openings in the housing way, to facilitate consumer operations.

[0046] 当然,上述说明并非是对本发明的限制,本发明也并不仅限于上述举例,本技术领域的普通技术人员在本发明的实质范围内所做出的变化、改型、添加或替换,也应属于本发明的保护范围。 [0046] Of course, the above description is not a limitation of the present invention, the present invention is not limited to the above example, the change of ordinary skill in the art within the spirit and scope of the present invention is made, modifications, additions or substitutions, It should belong to the scope of the invention.

專利引用
引用的專利申請日期發佈日期 申請者專利名稱
CN103246342A *2012年2月10日2013年8月14日联想(北京)有限公司Electronic device and power management method thereof
CN201732337U *2010年9月1日2011年2月2日福建三元达软件有限公司Switching circuit of handheld device
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被以下專利引用
引用本專利申請日期發佈日期 申請者專利名稱
CN105045169A *2015年6月18日2015年11月11日江苏辰汉电子科技有限公司Multifunctional startup and shutdown circuit and startup and shutdown method
分類
國際專利分類號G06F1/32
法律事件
日期代號事件說明
2015年6月24日C06Publication
2015年7月22日C10Entry into substantive examination