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專利

  1. 進階專利搜尋
公開號CN104702258 A
出版類型申請
申請書編號CN 201510126737
發佈日期2015年6月10日
申請日期2015年3月23日
優先權日期2015年3月23日
公開號201510126737.2, CN 104702258 A, CN 104702258A, CN 201510126737, CN-A-104702258, CN104702258 A, CN104702258A, CN201510126737, CN201510126737.2
發明人曲保章
申請者曲保章
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
Power-up starting power switch with controllable function
CN 104702258 A
摘要
The invention relates to a power-up starting power switch with a controllable function. The power-up starting power switch with the controllable function can effectively solve the problem of controllable power on and off of electric equipment. According to the technical scheme, the power-up starting power switch with the controllable function comprises a housing and a circuit board inside the housing, wherein the housing is provided with power input pins and a button S1; the circuit board is provided with a control circuit, which is composed of a single chip microcomputer, a field-effect tube and a DC/DC (direct current/direct current) module, the single chip microcomputer can control the input pins to output high electrical level or low electrical level according to input signals of the input pins. During application, an operator can simply connect the power input pins on the housing with the power supply output end of utilized equipment. The power-up starting power switch with the controllable function is novel and unique in structure, simple and reasonable in circuit, easy to produce and low in cost, achieves power-up automatic power ON, one-key power ON and OFF, low energy consumption, use convenience and high effects, and in a standby status, prolongs the service life of battery by 2 to 5 times, thereby being an innovation of power switches.
聲明所有權(3)  原文語言:中文
1.一种具有可控功能的上电开机电源开关,包括壳体和装在壳体内电路板,壳体上设置有电源输入引脚和按键Si,其特征在于,电路板上装有控制电路,控制电路包括单片机、场效应管和DC/DC模块,单片机的输入引脚分别与电阻R4的一端和电阻R5的一端相连,电阻R5的另一端接地,电阻R4的另一端分别与第一DC/DC模块Ul的输出引脚和二极管D5的正极相连,第一DC/DC模块Ul的接地引脚接地,第一DC/DC模块Ul输入引脚经按键SI分别与二极管Dl的负极、二极管D2的负极、有极电容Cl的正极、三极管Ql的集电极、电阻R3的一端和场效应管Q2的漏极相连,二极管Dl的正极与壳体上的电源输入引脚相连,二极管D2的正极分别与电阻Rl的一端、电阻R2的一端、场效应管Q3的源极和第二DC/DC模块U2的接地引脚相连,共端接地,电阻Rl的另一端分别接有极电容Cl的负极和三极管Ql的基极,电阻R2的另一端分别接三极管Ql的发射极、二极管D3的负极和场效应管Q3的栅极,场效应管Q3的漏极分别与电阻R3的另一端和场效应管Q2的栅极相连,场效应管Q2的源极与第二DC/DC模块U2的输入引脚相连,第二DC/DC模块U2的输出引脚与二极管D4的正极相连,二极管D4的负极分别接单片机的供电引脚和二极管D5的负极,单片机的输出引脚与二极管D3的正极相连,所述的单片机能够根据输入引脚的输入信号控制输入引脚输出高电平或低电平;使用时,将壳体上的电源输入引脚与使用设备供电电源输出端相连即可; 上电开机的过程为: 当壳体上的电源输入引脚处从断电状态接通电源时,电容Cl处于充电状态,控制三极管Ql导通,进而使场效应管Q3导通,场效应管Q3导通后,场效应管Q2栅极处于低电平状态,使场效应管Q2导通,接通电源,经第二DC/DC模块U2转换电压后为单片机供电,单片机上电后通过单片机的输出引脚Po输出高电平经二极管D3,使场效应管Q3、Q2继续维持导通状态,完成上电开机过程; 按键开关机的过程为: 开机时,按键SI被按下,第一DC/DC模块Ul工作,为单片机提供工作电源,单片机上电后通过单片机的输出引脚输出高电平经二极管D3,使场效应管Q3、Q2继续维持导通状态,完成上电开机过程; 关机时,按键SI被按下,第一DC/DC模块Ul工作,第一DC/DC模块Ul输出电压经电阻R4、R5分压后为单片机提供高电平信号,由单片机的输入引脚Pi送入单片机内部进行处理,单片机在确认关机信号有效后,通过输出引脚Po输出低电平信号,经二极管D3使场效应管Q3、Q2关断,完成按键关机过程。 A function with controllable power is turned on the power switch, comprising a housing and a circuit board mounted within the housing, the housing is provided on a power supply input pins and buttons Si, wherein the circuit board is equipped with a control circuit, control circuit includes a microcontroller, MOSFET and DC / DC modules, the microcontroller input pins are connected to one end of one end of the resistor R4 and the resistor R5, the other end of the resistor R5, the other end of the resistor R4, respectively, with the first DC / DC Ul positive module output pins and diode D5 is connected to the first DC / DC module Ul ground pin to ground, the first DC / DC module Ul Inputs button SI were negative and diode Dl, the diode D2 is negative , there is the positive electrode of the capacitor Cl, a collector, and a drain end of the FET Q2 transistor Ql is connected to the resistor R3, the diode Dl is connected to the power input pin of the housing on the positive electrode, the anode of the diode D2 and a resistor, respectively Rl end, the end of the resistor R2 and FET Q3 source and a second DC / DC module U2 is connected to ground pins were grounded, and the other end of the resistor Rl are connected with a negative electrode capacitance and transistor Ql Cl the base, the other end of the resistor R2 are respectively connected to the emitter of the transistor Ql, the gate and the cathode of diode D3 of MOSFET Q3, the drain of the FET Q3, respectively, and the other end of the resistor R3 and the FET Q2 a gate connected to the source of the FET Q2 is connected to the second DC / DC module input pin of U2, the positive electrode of the second DC / DC module U2 output pin diode D4 is connected to the cathode of the diode D4 are connected microcontroller The supply pins and cathode of the diode D5, the cathode of the diode D3 output pin microcontroller connected to the input pin of the device to an input signal according to the control input pin high or low; in use, The power input pin and the output of the power supply using the device is connected to the housing; turn on the power of the process: When the power supply input pin of the housing on the power from the power-off state, the capacitor Cl is charging state, the control transistor Ql is turned on, thereby enabling the FET Q3 is turned on, after the FET Q3 is turned on, the gate of the FET Q2 is low state, the FET Q2 is turned on, the power, the The second DC / DC voltage converter module after the microcontroller U2 power after power microcontroller through the microcontroller output pin output high Po by the diode D3, so that the FET Q3, Q2 conduction state continues to maintain complete turn on the power process; the process is the key switch: boot, SI button is pressed, the first DC / DC module Ul work, supplies power to the microcontroller, the microcontroller is powered by the microcontroller output pin high by the diode D3 so that the FET Q3, Q2 continue to maintain the conduction state, the power to complete the boot process; shutdown, SI button is pressed, the first DC / DC module Ul work, the first DC / DC module Ul output voltage via a resistor R4 It offers R5 partial pressure after high-level signal for the microcontroller, the microcontroller input pins Pi into internal microcontroller for processing, the microcontroller after confirming the shutdown signal is active, through the output pin outputs a low level signal Po, via a diode D3 make FET Q3, Q2 is turned off, the key to complete the shutdown process.
2.根据权利要求1所述的具有可控功能的上电开机电源开关,其特征在于,所述的电容Cl、电阻Rl、R2、R3,三极管Q1、场效应管Q2、Q3构成上电启动电路,单片机和二极管D3构成电源控制电路,第一DC/DC模块Ul和第二DC/DC模块U2用于电源转换,二极管D4、D5作为两DC/DC模块之间的隔离二极管,电阻R4、R5用于按键检测,当壳体上的电源输入引脚处从断电状态接通电源时,电容Cl处于充电状态,控制三极管Ql导通,进而使场效应管Q3导通,场效应管Q3导通后,场效应管Q2栅极处于低电平状态,使场效应管Q2导通,接通电源,经第二DC/DC模块U2转换电压后为单片机供电,单片机上电后通过单片机的输出引脚Po输出高电平经二极管D3,使场效应管Q3、Q2继续维持导通状态,完成上电开机过程。 2. According to one of the power is turned on the power switch with a controlled function claim, wherein said capacitor Cl, resistors Rl, R2, R3, transistor Q1, FET Q2, Q3 constitute the electric start circuit, microcontroller and power supply control circuit constituting the diode D3, the first DC / DC module Ul and second DC / DC converter for power module U2, the diode D4, D5 as isolation diodes, resistors R4 between the two DC / DC modules, R5 for key detection, when the power supply input pin of the housing on the power from the power-off state, the capacitor Cl in a charged state, the control transistor Ql is turned on, thereby enabling the FET Q3 is turned on, the FET Q3 After conducting, the gate of the FET Q2 is low state, the FET Q2 is turned on, the power, after the second DC / DC converter module U2 voltage power after the microcontroller, the microcontroller through the microcontroller power Po output pin outputs a high level by the diode D3, so that the FET Q3, Q2 to continue to maintain the conduction state, the power to complete the boot process.
3.根据权利要求1所述的具有可控功能的上电开机电源开关,其特征在于,所述的壳体为方形或圆形。 According to claim 1 having a controllable function of the power is turned on the power switch as claimed in claim wherein said housing is square or round.
說明  原文語言:中文
具有可控功能的上电开机电源开关 Power function with controllable power supply switch

技术领域 TECHNICAL FIELD

[0001] 本发明涉及一种具有可控功能的上电开机电源开关,用于各种需要上电自动开机的电路或设备当中,具体应用在安全性较高的电子产品领域,如汽车电子领域。 [0001] The present invention relates to an electrical power supply switch with controlled function for which a circuit or device needs power automatically boot, specific applications in high security electronic products, such as automotive electronics field .

背景技术 Background technique

[0002]目前,在各种需要上电自动开机的设备中,通常采用的方法是将设备的电源入口直接接在供电电源输出端,这样电源一接通设备马上就可以上电工作,但这样做的弊端是不能实现在接通电源的情况下通过按键关机。 [0002] At present, the power needs automatically boot device, commonly used method is to power the device directly connected to the inlet of the power supply output terminal, so that the power switch on the device immediately can be more than one electrical work, but this drawbacks do not realize in the case of power through the key off. 还有一种方法可以实现通过按键实现开关机,但这种方法需要设备不停的采集开关机按键的状态,这就要求设备即使在关机状态下也要继续开关机按键的检测工作,需要一定的功耗,对于电池供电的设备来说非常不利,长期的话容易造成电池的亏电。 Another way to achieve the realization of the switch via the button, but this method requires equipment kept collecting state switch button, which requires equipment must continue even if the switch detects the working machine keys in the off state, take some power for battery-powered devices is very negative, if likely to cause long-term loss of power of the battery. 研制一种具有可控功能的上电开机电源开关,是本领域技术人员关心问题。 Power is turned on the power switch has controlled the development of a functional, it is skilled in the art concerns.

发明内容 SUMMARY OF THE INVENTION

[0003] 针对上述情况,为克服现有技术之缺陷,本发明之目的就是提供一种具有可控功能的上电开机电源开关,可有效解决用电设备可控开关机的问题。 [0003] For the above, to overcome the deficiencies of the prior art, the object of the present invention is to provide a power switch on the power on with controlled function, which can effectively solve the problem of electrical equipment controllable switch machines.

[0004] 本发明解决的技术方案是,包括壳体和装在壳体内电路板,壳体上设置有电源输入引脚和按键SI,电路板上装有控制电路,控制电路包括单片机、场效应管和DC/DC模块,单片机的输入引脚分别与电阻R4的一端和电阻R5的一端相连,电阻R5的另一端接地,电阻R4的另一端分别与第一DC/DC模块Ul的输出引脚和二极管D5的正极相连,第一DC/DC模块Ul的接地引脚接地,第一DC/DC模块Ul输入引脚经按键SI分别与二极管Dl的负极、二极管D2的负极、有极电容Cl的正极、三极管Ql的集电极、电阻R3的一端和场效应管Q2的漏极相连,二极管Dl的正极与壳体上的电源输入引脚相连,二极管D2的正极分别与电阻Rl的一端、电阻R2的一端、场效应管Q3的源极和第二DC/DC模块U2的接地引脚相连,共端接地,电阻Rl的另一端分别接有极电容Cl的负极和三极管Ql的基极,电阻R2的另一端分别接三极管Ql的发射极、二极管D3的负极和场效应管Q3的栅极,场效应管Q3的漏极分别与电阻R3的另一端和场效应管Q2的栅极相连,场效应管Q2的源极与第二DC/DC模块U2的输入引脚相连,第二DC/DC模块U2的输出引脚与二极管D4的正极相连,二极管D4的负极分别接单片机的供电引脚和二极管D5的负极,单片机的输出引脚与二极管D3的正极相连,所述的单片机能够根据输入引脚的输入信号控制输入引脚输出高电平或低电平;使用时,将壳体上的电源输入引脚与使用设备供电电源输出端相连即可; [0004] The present invention solves the technical solutions that includes a housing and a circuit board mounted within the housing, the housing is provided on a power supply input pins and buttons SI, the circuit board is equipped with a control circuit, the control circuit includes a microcontroller, FET and DC / DC modules, the microcontroller input pins are connected to one end of one end of the resistor R4 and the resistor R5, the other end of the resistor R5, the other end of the resistor R4, respectively, with the first DC / DC module Ul output pins and diode D5 is connected to the positive electrode of the first DC / DC module Ul ground pin to ground, the first DC / DC module Ul Inputs button SI diode Dl respectively of the anode, cathode of the diode D2, there is the positive pole of the capacitor Cl, The collector of transistor Ql, and the drain end of the FET Q2 is connected to the resistor R3, the diode Dl is connected to the power input pin of the positive electrode and the housing, one end of the anode of the diode D2, respectively, and one end of the resistor Rl, the resistor R2 FET Q3 and the source electrode of the second DC / DC module U2 is connected to ground pins, total is grounded, the other end of the resistor Rl are connected with the negative electrode and the base capacitance of transistor Ql Cl pole, the other resistor R2 one end respectively connected to the emitter of the transistor Ql, a negative electrode and the gate electrode of the FET Q3 the diode D3, respectively, the drain of FET Q3 is connected to the gate of FET Q2 and the other end of resistor R3 and the FET Q2 The source and the second DC / DC module input pin is connected to U2, the second DC / DC module U2 output pin is connected to the positive diode D4, the cathode of the diode D4 are respectively connected microcontroller power supply pin and the diode D5 negative, positive output pin diode D3 is connected to the microcontroller, the microcontroller can be based on the input signal input pins control input pin high or low; when in use, the power input lead on the housing feet and use the device is connected to the output of the power supply;

上电开机的过程为: Power-on boot process:

当壳体上的电源输入引脚处从断电状态接通电源时,电容Cl处于充电状态,控制三极管Ql导通,进而使场效应管Q3导通,场效应管Q3导通后,场效应管Q2栅极处于低电平状态,使场效应管Q2导通,接通电源,经第二DC/DC模块U2转换电压后为单片机供电,单片机上电后通过单片机的输出引脚Po输出高电平经二极管D3,使场效应管Q3、Q2继续维持导通状态,完成上电开机过程; When the power input pins on the housing power from power-off state, the capacitor Cl in a charged state, the control transistor Ql is turned on, thereby enabling the FET Q3 is turned on, after the FET Q3 is turned on, FET tube Q2 gate in a low state, so FET Q2 is turned on, power, after the second DC / DC converter module U2 supply voltage for the microcontroller, the microcontroller is powered by the microcontroller output pin output high Po level by the diode D3, so that the FET Q3, Q2 continue to maintain the conduction state, the power to complete the boot process;

按键开关机的过程为: Key switch process is as follows:

开机时,按键SI被按下,第一DC/DC模块Ul工作,为单片机提供工作电源,单片机上电后通过单片机的输出引脚输出高电平经二极管D3,使场效应管Q3、Q2继续维持导通状态,完成上电开机过程; When turned on, the button is pressed SI, the first DC / DC module Ul work, supplies power to the microcontroller, the microcontroller is powered by the microcontroller output pin high by the diode D3, so that the FET Q3, Q2 continue maintain the conduction state, turn on the power to complete the process;

关机时,按键SI被按下,第一DC/DC模块Ul工作,第一DC/DC模块Ul输出电压经电阻R4、R5分压后为单片机提供高电平信号,由单片机的输入引脚Pi送入单片机内部进行处理,单片机在确认关机信号有效后,通过输出引脚Po输出低电平信号,经二极管D3使场效应管Q3、Q2关断,完成按键关机过程。 Shutdown, SI button is pressed, the first DC / DC module Ul work, the first DC / DC module Ul output voltage via a resistor R4, a high-level signal to the microcontroller after R5 partial pressure, the microcontroller input pins Pi into the internal microcontroller for processing, the microcontroller in the shutdown signal is valid after confirmation by the output pin outputs a low level signal Po, via diode D3 so that the FET Q3, Q2 is turned off, the key to complete the shutdown process.

[0005] 本发明结构新颖独特,电路简单合理,易生产,成本低,实现了上电自动打开电源、一键开关电源,能耗小,使用方便,效果好,在待机情况下可是电池寿命延长2到5倍,是电源开关上的创新。 [0005] The novel and unique structure of the present invention, the circuit is simple and reasonable, easy production, low cost, to achieve the power automatically turn the power on, a small one-button switching power supply, energy consumption, easy to use, good effect, but in the case of the standby battery life 2-5 times that of innovative power switch.

附图说明 Brief Description

[0006] 图1为本发明的电路原理图。 [0006] FIG. 1 circuit diagram of the present invention.

具体实施方式 DETAILED DESCRIPTION

[0007] 以下结合附图对本发明的具体实施方式作进一步详细说明。 [0007] the following with reference to the specific embodiments of the present invention will be described in further detail.

[0008] 由图1给出,本发明包括壳体和装在壳体内电路板,所述的壳体为方形或圆形;壳体上设置有电源输入引脚和按键SI,电路板上装有控制电路,控制电路包括单片机、场效应管和DC/DC模块,单片机的输入引脚分别与电阻R4的一端和电阻R5的一端相连,电阻R5的另一端接地,电阻R4的另一端分别与第一DC/DC模块Ul的输出引脚和二极管D5的正极相连,第一DC/DC模块Ul的接地引脚接地,第一DC/DC模块Ul输入引脚经按键SI分别与二极管Dl的负极、二极管D2的负极、有极电容Cl的正极、三极管Ql的集电极、电阻R3的一端和场效应管Q2的漏极相连,二极管Dl的正极与壳体上的电源输入引脚相连,二极管D2的正极分别与电阻Rl的一端、电阻R2的一端、场效应管Q3的源极和第二DC/DC模块U2的接地引脚相连,共端接地,电阻Rl的另一端分别接有极电容Cl的负极和三极管Ql的基极,电阻R2的另一端分别接三极管Ql的发射极、二极管D3的负极和场效应管Q3的栅极,场效应管Q3的漏极分别与电阻R3的另一端和场效应管Q2的栅极相连,场效应管Q2的源极与第二DC/DC模块U2的输入引脚相连,第二DC/DC模块U2的输出引脚与二极管D4的正极相连,二极管D4的负极分别接单片机的供电引脚和二极管D5的负极,单片机的输出引脚与二极管D3的正极相连,所述的单片机能够根据输入引脚的输入信号控制输入引脚输出高电平或低电平;使用时,将壳体上的电源输入引脚与使用设备供电电源输出端相连即可; [0008] is given in Figure 1, the present invention includes a housing and a circuit board mounted within the housing, said housing is square or circular; provided on the housing power supply input pins and buttons SI, the circuit board is equipped with control circuit, the control circuit includes a microcontroller, MOSFET and DC / DC modules, the microcontroller input pin is connected at one end to one end of the resistor R4 and the resistor R5, respectively, the other end of the other end of the resistor R5, resistor R4 respectively to the first Cathode DC / DC module Ul output pins and diode D5 is connected to the first DC / DC module Ul ground pin to ground, the first DC / DC module Ul Inputs button SI were negative and diode Dl, the diode D2 is negative, there is the positive electrode capacitance Cl of the transistor Ql collector drain end of the FET Q2 and a resistor R3 is connected to the power input pin diode Dl is connected to the positive electrode and the housing, the cathode of the diode D2 One end of the resistor Rl respectively, the end of the resistor R2 and FET Q3 source and a second DC / DC module grounding pin connected U2 were grounded, and the other end of the resistor Rl are connected with the negative electrode of the capacitor Cl and transistor Ql base, the other end of the resistor R2 are connected to the emitter of the transistor Ql, diode D3 cathode and gate FET Q3 and the drain of the FET Q3, respectively, the other end of the resistor R3 and the FET the gate of transistor Q2 is connected to the FET Q2 is connected to the source electrode of the second DC / DC module input pins of U2, the positive electrode of the second DC / DC module U2 output pin diode D4 is connected to the cathode of the diode D4 respectively connected to the microcontroller power pins and cathode of the diode D5 and the positive output of the microcontroller pin diode D3 is connected to the input pin of the device to an input signal according to the control input pin high or low; When used, the power supply input pin on the housing and the use of the device is connected to the output of the power supply;

上电开机的过程为: Power-on boot process:

当壳体上的电源输入引脚处从断电状态接通电源时,电容Cl处于充电状态,控制三极管Ql导通,进而使场效应管Q3导通,场效应管Q3导通后,场效应管Q2栅极处于低电平状态,使场效应管Q2导通,接通电源,经第二DC/DC模块U2转换电压后为单片机供电,单片机上电后通过单片机的输出引脚Po输出高电平经二极管D3,使场效应管Q3、Q2继续维持导通状态,完成上电开机过程; 按键开关机的过程为: When the power input pins on the housing power from power-off state, the capacitor Cl in a charged state, the control transistor Ql is turned on, thereby enabling the FET Q3 is turned on, after the FET Q3 is turned on, FET tube Q2 gate in a low state, so FET Q2 is turned on, power, after the second DC / DC converter module U2 supply voltage for the microcontroller, the microcontroller is powered by the microcontroller output pin output high Po level by the diode D3, so that the FET Q3, Q2 continue to maintain the conduction state, the power to complete the boot process; the key switch process is as follows:

开机时,按键SI被按下,第一DC/DC模块Ul工作,为单片机提供工作电源,单片机上电后通过单片机的输出引脚输出高电平经二极管D3,使场效应管Q3、Q2继续维持导通状态,完成上电开机过程; When turned on, the button is pressed SI, the first DC / DC module Ul work, supplies power to the microcontroller, the microcontroller is powered by the microcontroller output pin high by the diode D3, so that the FET Q3, Q2 continue maintain the conduction state, turn on the power to complete the process;

关机时,按键SI被按下,第一DC/DC模块Ul工作,第一DC/DC模块Ul输出电压经电阻R4、R5分压后为单片机提供高电平信号,由单片机的输入引脚Pi送入单片机内部进行处理,单片机在确认关机信号有效后,通过输出引脚Po输出低电平信号,经二极管D3使场效应管Q3、Q2关断,完成按键关机过程。 Shutdown, SI button is pressed, the first DC / DC module Ul work, the first DC / DC module Ul output voltage via a resistor R4, a high-level signal to the microcontroller after R5 partial pressure, the microcontroller input pins Pi into the internal microcontroller for processing, the microcontroller in the shutdown signal is valid after confirmation by the output pin outputs a low level signal Po, via diode D3 so that the FET Q3, Q2 is turned off, the key to complete the shutdown process.

[0009] 所述的电容Cl、电阻R1、R2、R3,三极管Ql、场效应管Q2、Q3构成上电启动电路,单片机和二极管D3构成电源控制电路,第一DC/DC模块Ul和第二DC/DC模块U2用于电源转换,二极管D4、D5作为两DC/DC模块之间的隔离二极管,电阻R4、R5用于按键检测,当壳体上的电源输入引脚处从断电状态接通电源时,电容Cl处于充电状态,控制三极管Ql导通,进而使场效应管Q3导通,场效应管Q3导通后,场效应管Q2栅极处于低电平状态,使场效应管Q2导通,接通电源,经第二DC/DC模块U2转换电压后为单片机供电,单片机上电后通过单片机的输出引脚Po输出高电平经二极管D3,使场效应管Q3、Q2继续维持导通状态,完成上电开机过程;利用二极管D1、D2的单向导通作用实现输入电源防反接功能; [0009] The capacitor Cl, resistors R1, R2, R3, transistor Ql, FET Q2, Q3 constituting the electric start circuit, microcontroller and power supply control circuit constituting the diode D3, the first DC / DC module Ul and second DC / DC converter for power module U2, the diode D4, D5 as isolation diodes, resistors R4 between the two DC / DC module, R5 for key detection, when the power supply input pins on the housing pick from power-off state through power supply, the capacitor Cl is charging, the control transistor Ql is turned on, thereby enabling the FET Q3 is turned on, after the FET Q3 is turned on, the gate of the FET Q2 is low state, the FET Q2 conduction, power, after the second DC / DC converter module U2 voltage power after the microcontroller, the microcontroller through the microcontroller output pin electrical output high Po by the diode D3, so that the FET Q3, Q2 continuation conducting state, turn on the power to complete the process; the use of diode D1, D2 of the role of single conduction achieve input power anti-reverse function;

所述的按键SI为市售的按键开关,所述的按键开关常态处于初始自由状态的位置上,只是在有要求时才在外力作用下转换到第二种状态(位置),当外力一旦除去,由于弹簧的作用,开关就又回到初始位置,即按键SI按下时接通,松开时断开; Position of the button key switch SI is commercially available, the key switch in an initial free state of normality on, only when the external force required to convert to a second state (position), when the external force is removed once , due to the action of the spring, he went back to the initial position switch, when that is the key SI press turned on and off when released;

所述能够根据输入引脚的输入信号控制输入引脚输出高电平或低电平,从而与二极管D3构成电源控制电路,该单片机为市售产品,如型号为C8051F040、C8051F410、AT8052或W77E58/516等等诸多型号的单片均能用于本发明;通过单片机还可以实时监测本用电设备的其他应用电路的工作情况,若电路出现故障,电源将通过单片机输出引脚Po输出低电平信号,经二极管D3使场效应管Q3、Q2关断,实现自动关闭电源功能; The input pins can be based on the input signal control input pin high or low, so as to constitute a diode D3 power control circuit, the microcontroller is a commercially available product, such as the model for the C8051F040, C8051F410, AT8052 or W77E58 / 516, and many models can chip used in the present invention; real-time monitoring through the MCU can also work the other application circuit of the present electrical equipment, if the circuit fails, the power will through the microcontroller output pin output low Po signal, the diode D3 so that the FET Q3, Q2 is turned off, automatic power off function;

所述的第一DC/DC模块和第二DC/DC模块U2为市售的DC/DC转换器,能够将一个固定的直流电压变换为可变的直流电压,又称为直流斩波器。 The first DC / DC module and the second DC / DC module U2 is commercially available DC / DC converter, capable of converting a fixed DC voltage into a variable DC voltage, also known as the DC chopper.

[0010] 本发明在电路中设置两路DC/DC模块构成的转换电路,一路负责按键开关机,一路负责上电开机。 [0010] The present invention is set up conversion circuit two DC / DC modules in the circuit, all the way responsible for the key switch, all the way responsible for the power is turned on. 本发明的电源输入引脚与使用设备供电电源输出端相连,上电后上电启动电路使电源在一定时间内导通给单片机供电,单片机启动后通过输出引脚控制电源持续导通。 Power input pins and use the device power supply is connected to the output of the present invention, after powering on the power circuit the power is turned on within a certain time the power supply to the microcontroller, MCU started after the power supply via the output pin control continuous conduction. 单片机输入引脚检测开关状态,有按键按下,则根据按键按下情况判断是否执行电源切断动作。 Microcontroller input pin to detect the switch state, a button is pressed, it is determined whether or not to perform the power button is pressed cutting action according to the situation. 关机后还可通过按键按下状态进行正常开机。 After the shutdown button can also be pressed by normal boot.

[0011] 由上述情况可以清楚的看出,本发明具有以下功能:1、上电自动打开电源;2、一键开关电源;3、故障自动关闭电源;4、彻底关闭电源,电路自身不耗电;5、具有输入电源防反接功能。 [0011] can be clearly seen from the above, the present invention has the following features: 1, the power automatically turn on the power; 2, a key switching power supply; 3, fault auto power off; 4, completely turn off the power circuit itself does not consume electricity; 5, with input power anti-reverse function. 本发明结构新颖独特,电路简单合理,易生产,成本低,实现了上电自动打开电源、一键开关电源,能耗小,使用方便,效果好,在待机情况下可是电池寿命延长2到5倍,是电源开关上的创新,有良好的社会和经济效益。 The present invention is novel and unique structure, the circuit is simple and reasonable, easy production, low cost, to achieve the power automatically turn the power on, a small one-button switching power supply, energy consumption, easy to use, good effect, but in the case of the standby battery life 2-5 times, innovative power switch is on, there is a good social and economic benefits.

[0012] 申请人要指出的是,本申请中所有的各部件均为现有市售产品(公知技术),本发明创新之处在于将它们科学的组合起来,构成具有创新性的上电开机电源开关,本申请上述指出的仅仅是一种实施例,并不是用于限制本申请的保护范围,凡是用等同或等同替代手段所做出与本申请技术方案本质上相同的技术方案均属于本申请的保护范围。 [0012] The applicant is to be noted that the present application, all of the components are existing commercial products (known art), innovation of this invention is that they combine science, constitute the power innovative power the power switch, the present application noted above is merely one embodiment, the present application is not intended to limit the scope of protection, usually by means of equivalent or equivalents made and on the nature of the technical solution to apply the same technical solutions belong to the present the scope of application.

專利引用
引用的專利申請日期發佈日期 申請者專利名稱
CN102662345A *2012年5月31日2012年9月12日青岛海信电器股份有限公司Zero-power-consumption standby circuit
CN103345177A *2013年5月30日2013年10月9日江苏友奥电器有限公司Zero-power-consumption standby control circuit of household appliances and control method thereof
CN201159850Y *2008年1月29日2008年12月3日深圳华北工控有限公司Sequence control circuit
JPH09149550A * 名稱不詳
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H03K17/687
法律事件
日期代號事件說明
2015年6月10日C06Publication
2015年7月8日C10Entry into substantive examination