CN101951012A - Power supply device and communication equipment - Google Patents
Power supply device and communication equipment Download PDFInfo
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- CN101951012A CN101951012A CN 201010294571 CN201010294571A CN101951012A CN 101951012 A CN101951012 A CN 101951012A CN 201010294571 CN201010294571 CN 201010294571 CN 201010294571 A CN201010294571 A CN 201010294571A CN 101951012 A CN101951012 A CN 101951012A
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Abstract
The invention discloses a power supply device and communication equipment. The power supply device comprises a plurality of functional blocks, and at least one of the plurality of functional blocks is connected in parallel with a backup unit with the same function as the functional block; and when the functional block and the backup unit connected in parallel with the functional block work at the same time, or when the functional block fails, the backup unit connected in parallel with the functional block takes over the work of the functional block. The communication equipment comprises the power supply device, and a power supply is arranged on a power supply frame of the communication equipment and used for supplying power to other structures of the communication equipment. According to the power supply and the communication equipment provided by the embodiment of the invention, when one functional block in the power supply is damaged, the parallel backup unit continues working or takes over the work so that the whole power supply device works normally, the reliability of the power supply device is improved, meanwhile the replacement of the whole power supply device is avoided, and the cost is reduced.
Description
Technical field
The present invention relates to power technology, particularly a kind of supply unit and communication equipment.
Background technology
In the high electronic equipment of reliability requirement, power supply need back up design, thereby avoids the fault of power supply and the situation that whole electric equipment can't be worked occurs, and can improve the reliability of system greatly by the backup of power supply.
Usually take the mode of Hot Spare in the prior art, be made up of the power module that two or more functions are identical, all be in normal operating conditions behind the power initiation, the output-parallel of each power module is an electric together jointly.
But in research and practice process to prior art, the present inventor finds, adopts above-mentioned way, and the shortcoming of Hot Spare is no matter to be the N+1 backup, and still N+N backs up, and all is the backup between the complete power module.Have critical component to damage as long as each power module is inner, this power module has just damaged.If the N+1 backup then needs to replenish at once the power module that backs up.
Summary of the invention
The embodiment of the invention provides a kind of supply unit and communication equipment, has solved in the prior art complete power module to be backed up, and when the inner critical component of power module damages, must change the defective of whole power module.
The embodiment of the invention provides a kind of supply unit, comprise a plurality of functional blocks, at least one functional block is parallel with the identical backup units of function with it in described a plurality of functional block, described functional block and the backup units in parallel with this functional block are worked simultaneously, perhaps when described functional block fault, take over described functional block work by the backup units of functional block parallel connection.
The embodiment of the invention provides a kind of communication equipment, and described communication equipment comprises above-mentioned supply unit, and described supply unit is located at other structures power supplies that are used on the power bay of described communication equipment to communication equipment.
Supply unit that the embodiment of the invention provides and communication equipment, at least one functional block in a plurality of functional blocks in the supply unit is parallel with the identical backup units of function with it, described functional block and the backup units in parallel with this functional block are worked simultaneously, perhaps when described functional block fault, take over described functional block work by the backup units of functional block parallel connection, when a functional block in the supply unit is damaged, backup units in parallel works on or takes over job, make the whole supply unit still can operate as normal, improved the reliability of supply unit, avoided simultaneously whole supply unit is changed, reduced cost.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of embodiment of the invention supply unit first embodiment;
Fig. 2 is the structural representation of embodiment of the invention supply unit second embodiment;
Fig. 3 is the structural representation of embodiment of the invention supply unit the 3rd embodiment;
Fig. 4 is the structural representation of embodiment of the invention supply unit the 4th embodiment;
Fig. 5 is the structural representation of embodiment of the invention supply unit the 5th embodiment;
Fig. 6 is the structural representation of embodiment of the invention supply unit the 6th embodiment;
Fig. 7 is the structural representation of embodiment of the invention supply unit the 7th embodiment;
Fig. 8 is the structural representation of embodiment of the invention supply unit the 8th embodiment;
Fig. 9 is the structural representation of embodiment of the invention supply unit physical circuit;
Figure 10 is the structural representation of embodiment of the invention supply unit the 9th embodiment;
Figure 11 is the structural representation of embodiment of the invention supply unit the tenth embodiment;
Figure 12 is the structural representation of embodiment of the invention supply unit the 11 embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The present invention relates to a kind of supply unit, this supply unit comprises a plurality of functional blocks, at least one functional block is parallel with the identical backup units of function with it in described a plurality of functional block, described functional block and the backup units in parallel with this functional block are worked simultaneously, perhaps when described functional block fault, take over described functional block work by the backup units of functional block parallel connection.
A plurality of functional blocks comprise input unit described in a kind of supply unit embodiment, are used for input voltage is carried out rectifying and wave-filtering; Voltage transformation unit is used for the voltage after the input unit output is carried out conversion; Output unit is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering; At least one unit is parallel with the identical backup units of function with it in described input unit, voltage transformation unit or the output unit.
A plurality of functional blocks comprise primary circuit described in the another kind of supply unit embodiment, are used for being connected with electric network source; Transforming circuit is used for the voltage of primary circuit output is carried out voltage transformation; Secondary circuit is powered by transforming circuit, and at least one circuit is parallel with the identical backup units of function with it in described primary circuit, transforming circuit or the secondary circuit.
A plurality of functional blocks comprise primary circuit described in the third supply unit embodiment, are used for being connected with the primary winding; Transformer; And secondary circuit, being used for being connected with the transformer secondary output winding, at least one circuit is parallel with function identical copy unit with it in described primary circuit, transformer or the secondary circuit.
Comprise that with a plurality of functional blocks in the supply unit input unit, voltage transformation unit and output unit are example, describe the present invention below:
Embodiment one, a kind of supply unit with reference to figure 1, comprise first input unit 1, are used for input voltage is carried out rectifying and wave-filtering; First voltage transformation unit 2 is used for the voltage after the input unit output is carried out conversion; First output unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering; Described first input unit 1 is parallel with the backup units identical with this Elementary Function.
First voltage transformation unit 2 is preferably transformer, comprise primary coil and secondary coil, described primary coil is connected with second input unit 4 with described first input unit 1 respectively, described secondary coil is connected with first output unit 3, and described transformer is used for the voltage through first input unit 1 and second input unit, 4 filter rectifications is carried out being input to first output unit 3 after the conversion.
First output unit 3 comprises second rectification circuit, is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
The described first input unit two ends not only can backup units identical with this Elementary Function in parallel, can also a plurality of backup units identical with this Elementary Function of parallel connection.
The input of described first input unit and backup units thereof can also be in series with safeties, and when electric current was excessive, described safeties disconnected with the protection entire circuit, and described safeties are preferably fuse or electronic switch.
According to supply unit of the present invention, in the identical backup units of the two ends of first input unit at least one function in parallel, when first input unit of supply unit inside breaks down, backup units can work on, can not influence the operating state of whole supply unit, improve the reliability of supply unit, also do not needed to change power supply, reduced cost.Here " function is identical " is identical, be meant the minimum requirements that can reach the work of alternative functions piece, and the inside particular circuit configurations of backup units can slightly be reduced with respect to the functional block in parallel with it, to reduce cost.
Embodiment two, a kind of supply unit with reference to figure 2, comprise first input unit 1, are used for input voltage is carried out rectifying and wave-filtering; First voltage transformation unit 2 is used for the voltage after the input unit output is carried out conversion; First output unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering; Described first voltage transformation unit 2 is parallel with the backup units identical with this Elementary Function.
First voltage transformation unit 2 is preferably transformer, comprise primary coil and secondary coil, described first voltage transformation unit 2 is parallel with second voltage transformation unit 5, described second voltage transformation unit 5 is function and the identical backup units of described first voltage transformation unit, 2 functions, described second voltage transformation unit 5 is preferably transformer, comprise primary coil and secondary coil, described first input unit 1 is connected with the primary coil of described first voltage transformation unit 2 and second voltage transformation unit 5 respectively, and described first voltage transformation unit 2 and second voltage transformation unit 5 are used for the voltage through first input unit, 1 filter rectification is carried out being input to first output unit 3 after the conversion.
First output unit 3 comprises second rectification circuit, is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
The described first voltage transformation unit two ends not only can backup units identical with this Elementary Function in parallel, and having gone back can a plurality of backup units identical with this Elementary Function of parallel connection.
The input of described first voltage transformation unit and backup units thereof can also be in series with safeties, and when electric current was excessive, described safeties disconnected with the protection entire circuit, and described safeties are preferably fuse or electronic switch.
According to supply unit of the present invention, in the identical backup units of the two ends of first voltage transformation unit parallel function, when first voltage transformation unit of supply unit inside breaks down, backup units can work on, can not influence the operating state of whole supply unit, improve the reliability of supply unit, simultaneously with respect in the prior art, directly change the scheme of whole power supply, greatly reduce cost.
Embodiment three, a kind of supply unit with reference to figure 3, comprise first input unit 1, are used for input voltage is carried out rectifying and wave-filtering; First voltage transformation unit 2 is used for the voltage after the input unit output is carried out conversion; First output unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering; Described first output unit 3 is parallel with the backup units identical with this Elementary Function.
First voltage transformation unit 2 is preferably transformer, comprise primary coil and secondary coil, described primary coil is connected with described first input unit 1, described secondary coil is connected with first output unit 3, and described transformer is used for the voltage through first input unit, 1 filter rectification is carried out being input to first output unit 3 after the conversion.
First output unit 3 comprises second rectification circuit, is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.Described first output unit 3 is parallel with second output unit 6, the second output units 6 identical with first output unit, 3 functions and comprises the 3rd rectification circuit, is used for the voltage after the first voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
The described first output unit two ends not only can backup units identical with this Elementary Function in parallel, and having gone back can a plurality of backup units identical with this Elementary Function of parallel connection.
The input of described first output unit and backup units thereof can also be in series with safeties, and when electric current was excessive, described safeties disconnected with the protection entire circuit, and described safeties are preferably fuse or electronic switch.
According to supply unit of the present invention, in the identical backup units of the two ends of first output unit parallel function, when first output unit of supply unit inside breaks down, backup units can work on, can not influence the operating state of whole supply unit, improve the reliability of supply unit, also do not needed to change power supply, reduced cost.
Embodiment four, a kind of supply unit with reference to figure 4, comprise first input unit 1, are used for input voltage is carried out rectifying and wave-filtering; First voltage transformation unit 2 is used for the voltage after the input unit output is carried out conversion; First output unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering; Described first input unit 1 is parallel with the backup units identical with this Elementary Function, and described first voltage transformation unit 2 is parallel with the backup units identical with this Elementary Function, and described first output unit 3 is parallel with the backup units identical with this Elementary Function.
First voltage transformation unit 2 is preferably transformer, comprise primary coil and secondary coil, described first voltage transformation unit 2 is parallel with the second identical voltage transformation unit 5 of function, described second voltage transformation unit 5 is preferably transformer, comprise primary coil and secondary coil, described first input unit 1 is connected with the primary coil of described first voltage transformation unit 2 and second voltage transformation unit 5 respectively, described second input unit 4 is connected with the primary coil of described first voltage transformation unit 2 and second voltage transformation unit 5 respectively, and described first voltage transformation unit 2 and second voltage transformation unit 5 are used for the voltage through first input unit 1 and second input unit, 4 filter rectifications is carried out being input to first output unit 3 and the backup units thereof after the conversion.
First output unit 3 comprises second rectification circuit, is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.Described first output unit 3 is parallel with second output unit 6 identical with first output unit, 3 functions, second output unit 6 comprises the 3rd rectification circuit, described first output unit 3 is connected with second voltage transformation unit 5 with first voltage transformation unit 2 respectively, described second output unit 6 is connected with second voltage transformation unit 5 with first voltage transformation unit 2 respectively, and described first output unit 3 and second output unit 6 are used for the voltage after first voltage transformation unit 2 and 5 conversion of second voltage transformation unit is carried out exporting behind the rectifying and wave-filtering.
The input of described first input unit and backup units thereof, first voltage transformation unit and backup units thereof and first output unit and backup units thereof is in series with safeties respectively; when electric current is excessive; described safeties disconnect the protection entire circuit, and described safeties are preferably fuse or electronic switch.
According to supply unit of the present invention, in the identical backup units of the two ends of first input unit, first voltage transformation unit and first output unit difference parallel function, when the different unit of the inner arbitrary unit of supply unit or any two functions or any three different unit of function break down, backup units can work on, can not influence the operating state of whole supply unit, improve the reliability of supply unit, also do not needed to change power supply, reduced cost.
Embodiment five, a kind of supply unit with reference to figure 5, comprise first input unit 1, are used for input voltage is carried out rectifying and wave-filtering; First voltage transformation unit 2 is used for the voltage after the input unit output is carried out conversion; First output unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering; Described first input unit 1 is parallel with the second identical input unit 4 of function with it; Comprise that also first detects the control unit 10 and the first main switch unit 11, the described first main switch unit 11 is with in parallel with first input unit 1 again after second input unit 4 is connected, described first detects control unit 10 is connected with the described first main switch unit 11 with described first input unit 1 respectively, during described first input unit, 1 operate as normal, the first main switch unit 11 is in off-state, when detecting described first input unit 1 and break down, control the first main switch unit, 11 closures, take over 1 work of described first input unit by second input unit 4.
Described first detects control unit comprises detection module and the control module that is connected with detection module, whether described detection module detects first input unit and breaks down, when first input unit breaks down, detection module sends to control module with fault-signal, control module is controlled the first main switch unit closure, and described fault can be for breaking phenomena etc. takes place.
Described supply unit also comprises the first auxiliary switch unit, the described first auxiliary switch unit is in parallel with the branch road of connecting with the first main switch unit and second input unit again after described first input unit is connected, described first detects control unit is connected with the described first auxiliary switch unit, when detecting first input unit and break down, control the described first auxiliary switch unit and disconnect described first input unit is quit work.
The input of described first input unit safeties of can also connecting, when flowing through electric current when excessive, safeties disconnect, the first detection control unit detects first voltage transformation unit and opens circuit, control the first switch element closure, the work of the second input unit place in circuit, described safeties can be fuse or electronic switch etc.
The input unit two ends not only can backup units in parallel, the all right identical backup units of a plurality of functions in parallel, in parallel with input unit again after each backup units and each main switch units in series, detecting control unit links to each other with each backup units with each main switch unit respectively, when one of them backup units breaks down, disconnect the main switch unit of connecting with this backup units, another backup units work is enabled in closed another main switch unit.
Embodiment six, a kind of supply unit with reference to figure 6, comprise first input unit 1, are used for input voltage is carried out rectifying and wave-filtering; First voltage transformation unit 2 is used for the voltage after the input unit output is carried out conversion; First output unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering; Described first voltage transformation unit 2 is parallel with the second identical voltage transformation unit 5 of function with it; Comprise that also second detects the control unit 12 and the second main switch unit 13, the described second main switch unit 13 is with in parallel with first voltage transformation unit 2 again after second voltage transformation unit 5 is connected, described second detects control unit 12 is connected with the described second main switch unit 13 with described first voltage transformation unit 2 respectively, described second detects control unit 12 is used to detect when described first voltage transformation unit, 2 operate as normal, controlling the second main switch unit 13 disconnects, when detecting described first voltage transformation unit 2 and break down, control the second main switch unit, 13 closures, take over 2 work of described first voltage transformation unit by second voltage transformation unit 4.
Described second detects control unit comprises detection module and the control module that is connected with detection module, whether described detection module detects first voltage transformation unit and breaks down, when first voltage transformation unit breaks down, detection module sends to control module with fault-signal, control module is controlled the second main switch unit closure, and described fault can be for breaking phenomena etc. takes place.
Described supply unit also comprises the second auxiliary switch unit, the described second auxiliary switch unit is in parallel with the branch road of connecting with the second main switch unit and second voltage transformation unit again after described first voltage transformation unit is connected, described second detects control unit is connected with the described second auxiliary switch unit, when detecting first voltage transformation unit and break down, control the described second auxiliary switch unit and disconnect described first voltage transformation unit is quit work.
The input of described first voltage transformation unit safeties of can also connecting, when flowing through electric current when excessive, safeties disconnect, and second detects control unit controls the second main switch unit closure, the work of the second voltage transformation unit place in circuit, described safeties can be fuse or electronic switch.
The voltage transformation unit two ends not only can backup units in parallel, the all right identical backup units of a plurality of functions in parallel, in parallel with voltage transformation unit again after each backup units and each main switch units in series, detecting control unit links to each other with each backup units with each main switch unit respectively, when one of them backup units breaks down, disconnect the main switch unit of connecting with this backup units, another backup units work is enabled in closed another main switch unit.
Embodiment seven, a kind of supply unit with reference to figure 7, comprise first input unit 1, are used for input voltage is carried out rectifying and wave-filtering; First voltage transformation unit 2 is used for the voltage after the input unit output is carried out conversion; First output unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering; Described first output unit 3 is parallel with the 3rd identical output unit 6 of function with it; Comprise that also the 3rd detects control unit 14 and the 3rd main switch unit 15, described the 3rd main switch unit 15 is with in parallel with first output unit 3 again after second output unit 6 is connected, the described the 3rd detects control unit 14 is connected with described the 3rd main switch unit 15 with described first output unit 3 respectively, the described the 3rd detects control unit 14 is used to detect when described first output unit, 3 operate as normal, controlling the 3rd main switch unit 15 disconnects, when detecting described first output unit 3 and break down, control the 3rd main switch unit 15 closures, take over 3 work of first output unit by second output unit 6.
The described the 3rd detects control unit comprises detection module and the control module that is connected with detection module, whether described the 3rd detection module detects first output unit and breaks down, when first output unit breaks down, detection module sends to control module with fault-signal, control module is controlled the 3rd switch element closure, and described fault can be for breaking phenomena etc. takes place.
Described supply unit also comprises the 3rd auxiliary switch unit, described the 3rd auxiliary switch unit is in parallel with the branch road of connecting with the 3rd main switch unit and second output unit again after described first output unit is connected, the described the 3rd detects control unit is connected with described the 3rd auxiliary switch unit, when detecting first output unit and break down, control described the 3rd auxiliary switch unit and disconnect described first output unit is quit work.
The input of described first output unit safeties of can also connecting, when flowing through electric current when excessive, safeties disconnect, and the 3rd detects control unit controls the 3rd main switch unit closure, the work of the second output unit place in circuit, described safeties can be fuse or electronic switch.
The output unit two ends not only can backup units in parallel, the all right identical backup units of a plurality of functions in parallel, in parallel with output unit again after each backup units and each main switch units in series, detecting control unit links to each other with each backup units with each main switch unit respectively, when one of them backup units breaks down, disconnect the main switch unit of connecting with this backup units, another backup units work is enabled in closed another main switch unit.
Embodiment eight, a kind of supply unit with reference to figure 8, comprise first input unit 1, are used for input voltage is carried out rectifying and wave-filtering; First voltage transformation unit 2 is used for the voltage after the input unit output is carried out conversion; First output unit 3 is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering; Described first input unit 1 is parallel with the second identical input unit 4 of function with it; Also comprise the 4th main switch unit 16, described the 4th main switch unit 16 is with in parallel with first input unit 1 again after second input unit 4 is connected; Described first voltage transformation unit 2 is parallel with the second identical voltage transformation unit 5 of function with it, also comprises the 5th main switch unit 17, and described the 5th main switch unit 17 is with in parallel with first voltage transformation unit 2 again after second voltage transformation unit 5 is connected; Described first output unit 3 is parallel with the second identical output unit 6 of function with it, also comprises the 6th main switch unit 18, and described the 6th main switch unit 18 is with in parallel with first output unit 3 again after second output unit 6 is connected; Also comprise and detect control unit 19, described detection control unit 19 respectively with first input unit 1, first voltage transformation unit 2, first output unit 3, the 4th main switch unit 16, the 5th main switch unit 17 is connected with the 6th main switch unit 18, described detection control unit is used to detect first input unit, when first voltage transformation unit or first output unit break down, control pairing the 4th main switch unit, the 5th main switch unit or main six switch element closures switch to pairing second input unit, second voltage transformation unit or the second output unit replacement work.
Described supply unit also comprises the fourth officer switch element, the 5th auxiliary switch unit and the 6th auxiliary switch unit, described fourth officer switch element be in parallel with the 4th main switch unit and second branch road of importing out units in series again after described first input unit is connected, described the 5th auxiliary switch unit is in parallel with the branch road of connecting with the 5th main switch unit and second voltage transformation unit again after described first voltage transformation unit is connected, described the 6th auxiliary switch unit be in parallel with the 6th main switch unit and second branch road of importing out units in series again after described first output unit is connected, described detection control unit respectively with described fourth officer switch element, the 5th auxiliary switch unit is connected with the 6th auxiliary switch unit, when described detection control unit detects first input unit and breaks down, controlling described fourth officer switch element disconnection quits work described first input unit, detect first when becoming the unit and breaking down, controlling the disconnection of described the 5th auxiliary switch unit quits work described first voltage transformation unit, when detecting first output unit and breaking down, control described the 6th auxiliary switch unit and disconnect described first output unit is quit work.
The input of described first input unit, first voltage transformation unit and first output unit safeties of can also connecting, when flowing through electric current when excessive, safeties disconnect, detect control unit and control pairing switch element closure, pairing backup units place in circuit work, described safeties can be fuse or electronic switch.
Input unit, voltage transformation unit and output unit two ends not only can backup units in parallel, the all right identical backup units of a plurality of functions in parallel, in parallel with output unit again after each backup units and each main switch units in series, detecting control unit links to each other with each backup units with each main switch unit respectively, when one of them backup units breaks down, disconnect the main switch unit of connecting with this backup units, another backup units work is enabled in closed another main switch unit.
Base gives the foregoing description, proposes the application examples of a physical circuit, as shown in Figure 9:
Should use-case be core with the transformer, whole power supply is divided into three big units: input circuit 101, transformer 102 and output circuit 103, input circuit 101 comprises: the input rectifying filter circuit that is made of D1, L1, C1 and C2; The Power Conversion and the control circuit that are connected with described input rectifying filter circuit, described Power Conversion and control circuit are made of R1-R6, C3-C6, TVS1 (Transient Voltage Suppressor), U1 (integrated power chip) and PC1 (photoelectrical coupler), and the output of described Power Conversion and control circuit is connected the input of transformer 102; Also comprise the self feeding circuit of being made up of D5 and C16, described self feeding circuit one end connects the output of transformer 102, and the other end connects described Power Conversion and control circuit and is its power supply; Output circuit 103 comprises: by the output rectifier and filter that D2-D4, D6-D8, C7-C15, R16-R18 and L2 constitute, described output rectifier and filter is connected with the output of described transformer 102; Also comprise the voltage sample circuit that is connected with described output rectifier and filter, described voltage sample circuit is made of R7-15, C17, light-emitting diode (part of PC1 photoelectrical coupler) and U2.
The embodiment of the invention can back up the input unit in the application examples, transformer or output unit respectively on the basis of this circuit application example.
As shown in figure 10, input circuit 110 and input circuit 210 backup each other, and transformer 120 and transformer 220 backup each other, and output circuit 130 and output circuit 230 backup each other.
1. open circuit property fault
Six big units: input circuit 110, input circuit 210, transformer 120, transformer 220, output circuit 130 and output circuit 230.Open circuit property fault appears in arbitrary unit, all can not influence the operate as normal of power supply.Open circuit property fault appears in two function unit inequality, also can not influence the operate as normal of power supply.Open circuit property fault appears in three function unit all inequality, still can not influence the operate as normal of power supply.This kind situation need not to add any detection controlling parts or circuit.
2. short-circuit fault
Suppose input circuit 110 being short-circuited property faults, then F11 disconnects, and the trouble unit circuit breaks away from.Suppose input circuit 210 being short-circuited property faults, then F21 disconnects, and the trouble unit circuit breaks away from.Suppose transformer 120 elementary being short-circuited property of winding faults, then F12 disconnects, and trouble unit breaks away from.Suppose transformer 120 being short-circuited property of secondary winding faults, then F13 disconnects, and trouble unit breaks away from.Suppose transformer 220 elementary being short-circuited property of winding faults, then F22 disconnects, and trouble unit breaks away from.Suppose transformer 220 being short-circuited property of secondary winding faults, then F23 disconnects, and trouble unit breaks away from.Suppose output circuit 130 being short-circuited property faults, then F14 disconnects, and the trouble unit circuit breaks away from.Suppose output circuit 230 being short-circuited property faults, then F24 disconnects, and the trouble unit circuit breaks away from.
Embodiment of the invention utilization includes but not limited to the detection control mode of fuse and/or electronic switch, and power supply is designed to three big units back-up job respectively, is electric together; When some unit break down, take over job by its backup units, continue powering load, output voltage bigger falling can not occur, and can not exert an influence to load.
Further again, according to the needs of real work, can the mean free error time that can improve power supply, improve reliability only to some or two designs that the unit backs up.
As shown in figure 11, power supply also can be divided into primary circuit, transformer, secondary circuit three big units.
As shown in figure 12, power supply can also be divided into primary circuit, control circuit, control circuit comprises self feeding circuit, transformer or inductance, secondary circuit four big unit circuit, but we still can regard primary circuit, control circuit as the unit of an input circuit together.
The present invention also provides a kind of communication equipment, and described communication equipment comprises above-mentioned supply unit, and described supply unit is located at other structures power supplies that are used on the power bay of described communication equipment to communication equipment.
Supply unit that the embodiment of the invention provides and communication equipment, at least one functional block in a plurality of functional blocks in the supply unit is parallel with the identical backup units of function with it, described functional block and the backup units in parallel with this functional block are worked simultaneously, perhaps when described functional block fault, take over described functional block work by the backup units of functional block parallel connection, when a functional block in the supply unit is damaged, backup units in parallel works on or takes over job, make whole supply unit operate as normal, improved the reliability of supply unit, avoided simultaneously whole supply unit is changed, reduced cost.
Used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. supply unit, it is characterized in that: this supply unit comprises a plurality of functional blocks, at least one functional block is parallel with the identical backup units of function with it in described a plurality of functional block, described functional block and the backup units in parallel with this functional block are worked simultaneously, perhaps when described functional block fault, take over described functional block work by the backup units of functional block parallel connection.
2. supply unit according to claim 1 is characterized in that: also comprise the detection control unit, the functional block that is used for supply unit inside is parallel with backup units detects; And when detecting the functional block that is parallel with backup units and break down, control the backup units succession function piece work in parallel with functional block.
3. supply unit according to claim 2, it is characterized in that: also comprise the main switch unit, described main switch unit and described backup units are in series, described detection control unit is connected with described main switch unit, when detecting the functional block that is parallel with backup units and break down, control described main switch unit closure and make the backup units succession function piece work in parallel with functional block.
4. supply unit according to claim 3, it is characterized in that: also comprise the auxiliary switch unit, the series circuit that described auxiliary switch unit and functional block constitute is in parallel with the series circuit that main switch unit and backup units constitute, described detection control unit is connected with described auxiliary switch unit, when detecting described functional block and break down, control described auxiliary switch unit and disconnect described functional block is quit work.
5. according to each described supply unit of claim 1 to 4, it is characterized in that: the input of described functional block or backup units is provided with safeties, is used for open circuit when electric current is excessive.
6. supply unit according to claim 5 is characterized in that: described safeties are fuse or electronic switch.
7. according to each described supply unit of claim 1 to 4, it is characterized in that: described a plurality of functional blocks comprise input unit, are used for input voltage is carried out rectifying and wave-filtering; Voltage transformation unit is used for the voltage after the input unit output is carried out conversion; Output unit is used for the voltage after the voltage transformation unit conversion is carried out exporting behind the rectifying and wave-filtering.
8. according to each described supply unit of claim 1 to 4, it is characterized in that: described a plurality of functional blocks comprise primary circuit, are used for being connected with electric network source; Transforming circuit is used for the voltage of primary circuit output is carried out voltage transformation; Secondary circuit is powered by transforming circuit.
9. according to each described supply unit of claim 1 to 4, it is characterized in that: described a plurality of functional blocks comprise primary circuit, are used for being connected with the primary winding; Transformer; And secondary circuit, be used for being connected with the transformer secondary output winding.
10. a communication equipment is characterized in that, described communication equipment comprises according to each described supply unit among the claim 1-9, and described supply unit is located at other structures power supplies that are used on the power bay of described communication equipment to communication equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010294571 CN101951012A (en) | 2010-09-28 | 2010-09-28 | Power supply device and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010294571 CN101951012A (en) | 2010-09-28 | 2010-09-28 | Power supply device and communication equipment |
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| Publication Number | Publication Date |
|---|---|
| CN101951012A true CN101951012A (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010294571 Pending CN101951012A (en) | 2010-09-28 | 2010-09-28 | Power supply device and communication equipment |
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| CN (1) | CN101951012A (en) |
Cited By (3)
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| CN112636482A (en) * | 2020-12-08 | 2021-04-09 | 山东航天电子技术研究所 | Dual-redundancy wireless energy transmission topology structure and control method |
| CN112787565A (en) * | 2019-11-06 | 2021-05-11 | 开利公司 | Redundant power supply for HVAC systems including refrigerant leak mitigation |
| CN112787565B (en) * | 2019-11-06 | 2024-04-09 | 开利公司 | Redundant power supply for HVAC systems including refrigerant leak mitigation |
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Address after: 518104, Guangdong, Shenzhen province Baoan District manhole Street oyster road manhole Industrial Company Third Industrial Zone A1, A2, A3 101 and 2 layers, A4 Applicant after: Shenzhen Tat Fook Technology Co., Ltd. Address before: 518108 Guangdong city of Shenzhen province Baoan District alqun Shiyan road with rich industrial area 1-2 building Applicant before: Shenzhen Tat Fook Technology Co., Ltd. |
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Application publication date: 20110119 |