CN105449833B - A kind of power supply management method and device - Google Patents

A kind of power supply management method and device Download PDF

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Publication number
CN105449833B
CN105449833B CN201410425913.8A CN201410425913A CN105449833B CN 105449833 B CN105449833 B CN 105449833B CN 201410425913 A CN201410425913 A CN 201410425913A CN 105449833 B CN105449833 B CN 105449833B
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power supply
electronic equipment
output
control circuit
chopper
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CN201410425913.8A
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CN105449833A (en
Inventor
丁厚永
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201410425913.8A priority Critical patent/CN105449833B/en
Priority to PCT/CN2015/070117 priority patent/WO2016029625A1/en
Publication of CN105449833A publication Critical patent/CN105449833A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

The embodiment of the present invention provides a kind of power supply management method and device, which comprises power supply management device detects whether the first power supply exports electricity;When detecting the first power supply output electricity, the access conducting of the power electronic equipment carried out by the power supply management device control, so that first power supply is the power electronic equipment;When detecting that first power supply does not export electricity, power supply management device is stated after the access is held on first time period, is controlled the access and is disconnected, so that second source is the power electronic equipment from stopping is switched to for the power electronic equipment.The problem of the frequent extremely lower electricity of electronic equipment when method and apparatus provided in an embodiment of the present invention had both avoided single channel power supply power supply, it is thus also avoided that the problem of leading to power depletion using another way power supply for a long time, to improve the reliability of equipment.

Description

A kind of power supply management method and device
Technical field
The present embodiments relate to the communications fields, and in particular to a kind of power supply management method and device.
Background technique
With popularizing for smart machine, start to dispose vehicle intelligent equipment in more and more move vehicles.For example, in public affairs Intelligent router is disposed on friendship vehicle, long-distance bus, provides the access of wireless network hot spot by the intelligent router, upstream data connects The functions such as enter.In order to keep the normal work of the vehicle intelligent equipment, the move vehicle is generally required as it, work is provided Power supply.The move vehicle generally can provide two kinds of power supply for vehicle intelligent equipment: one is provided by engine Power supply;One is on-vehicle batteries to provide power supply.But often single channel power supply can only be used for vehicle intelligent equipment power supply.
If the electricity of engine output is used only as vehicle intelligent equipment power supply, after vehicle stall, engine will Stop power supply, the vehicle intelligent equipment will horse power-on and power-off.If the vehicle intelligent equipment often descends electricity extremely, it will tight Ghost image rings the reliability of equipment;Vehicle intelligent equipment can not also provide corresponding function when electric under exception, for example, network takes Business.If being only vehicle intelligent equipment power supply with the electricity that on-vehicle battery exports, when engine misses, if on-vehicle battery Electricity exhausted by the vehicle intelligent equipment, will lead to move vehicle can not retrofire.Therefore, single channel power supply is vehicle-mounted intelligence The method of energy equipment power supply, haves the defects that influence the reliability of vehicle intelligent equipment and/or move vehicle.
Summary of the invention
Technical problems to be solved of the embodiment of the present invention provide a kind of power supply management method, only to the prior art to be overcome The reliability of vehicle intelligent equipment caused by single channel power supply capable of being used to power for vehicle intelligent equipment and/or move vehicle is low to be lacked It falls into, improves the reliability of vehicle intelligent equipment and/or move vehicle.
For this purpose, the embodiment of the present invention provides the following technical solutions:
According to a first aspect of the embodiments of the present invention, a kind of power supply management method is provided, applied to electronic equipment Power supply management, which comprises
Power supply management device detects whether the first power supply exports electricity;
When detecting the first power supply output electricity, the power supply management device control is the power electronic equipment Access conducting, so that first power supply is the power electronic equipment;
When detecting that first power supply does not export electricity, the power supply management device is held in the access After one period, controls the access and disconnect, so that second source is institute from stopping is switched to for the power electronic equipment State power electronic equipment.
With reference to first aspect, in the first possible implementation of the first aspect, the power supply management device includes Detection circuit, lock control circuit and dc chopper;Wherein, the output end of the input terminal of the dc chopper and the first power supply and The output end of second source is connected, and the output end of the dc chopper is connected with the electronic equipment;Institute's detection circuit Input terminal be connected with the output end of first power supply, the input terminal of the output end of the detection circuit and the lock control circuit Connection, the output end of the lock control circuit are connect with the controlled end of the dc chopper;
Whether the first power supply of the power supply management device detection, which exports electricity, includes:
The detection circuit detects whether first power supply exports electricity;
When detecting first power supply output electricity, the detection circuit to the lock control circuit output useful signal, Being used to indicate first power supply has electricity output;When detecting that first power supply does not export electricity, the detection circuit to First invalid signals of lock control circuit output, being used to indicate first power supply does not have electricity output.
The possible implementation of with reference to first aspect the first, in second of possible implementation of first aspect In, described when detecting the first power supply output electricity, the power supply management device control is the power electronic equipment Access conducting, so that first power supply is that the power electronic equipment includes:
The lock control circuit exports enable signal, control after receiving the useful signal, to the dc chopper It is open-minded to make the dc chopper, so that first power supply is connected by the dc chopper with the electronic equipment.
In conjunction with the first possible implementation of first aspect above-mentioned, in the third possible realization of first aspect In mode, when detecting that first power supply does not export electricity, the method also includes:
The detection circuit exports the first invalid signals to the electronic equipment;
It is described when detecting that first power supply does not export electricity, the power supply management device the access holding lead After logical first time period, controls the access and disconnect, so that second source is switched to stopping from for the power electronic equipment Include: for the power electronic equipment
The lock control circuit is in first invalid signals and the electronic equipment for receiving the detection circuit output After second invalid signals of output, enable signal is gone to dc chopper output, the dc chopper is controlled and disconnects, So that the second source and the electronic equipment go off state from state;Second invalid signals are described Electronic equipment is after receiving first invalid signals, delay first time period to the lock control circuit output.
In conjunction with the first or second of possible implementation of first aspect above-mentioned, at the 4th kind of first aspect In possible implementation, described when detecting that first power supply does not export electricity, the power supply management device is described Access is held on after first time period, is controlled the access and is disconnected, so that second source is from for the power electronic equipment Being switched to stopping is that the power electronic equipment includes:
The lock control circuit is receiving first invalid signals of the detection circuit output and is postponing at the first time After section, enable signal is gone to dc chopper output, the dc chopper is controlled and disconnects, so that the second source State is gone off from state with the electronic equipment.
According to a second aspect of the embodiments of the present invention, a kind of power supply management device is provided, described device includes:
Detection circuit, for detecting whether the first power supply exports electricity;
Control circuit, for controlling as electronic equipment when the detection circuit detects the first power supply output electricity The access of power supply is connected, so that first power supply is the power electronic equipment;When the detection circuit detects described When one power supply does not export electricity, after the access is held on first time period, controls the access and disconnect, so as to second Power supply is the power electronic equipment from stopping is switched to for the power electronic equipment;
Wherein, the input terminal of the detection circuit is connected with the output end of first power supply;The control circuit difference With the output end of the detection circuit, the output end of first power supply, the output end of the second source and the electronics Equipment is connected.
In conjunction with second aspect, in the first possible implementation of the second aspect,
The control circuit includes lock control circuit and dc chopper;Wherein, the input terminal of the dc chopper and The output end of one power supply is connected with the output end of second source, and the output end of the dc chopper and the electronic equipment connect It connects;The output end of the detection circuit is connect with the input terminal of the lock control circuit, the output end of the lock control circuit with it is described The controlled end of dc chopper connects;
The dc chopper is the electronic equipment for be turned on or off first power supply and the second source The access of power supply;
The lock control circuit is opened or is disconnected for controlling the dc chopper.
In conjunction with the first possible implementation of second aspect, in second of possible implementation of second aspect In,
The detection circuit is specifically used for: whether the first power supply of detection exports electricity;When detecting first power supply output When electric, to the lock control circuit output useful signal, being used to indicate first power supply has electricity output;When detecting described first When power supply does not export electricity, to first invalid signals of lock control circuit output, it is defeated without electricity to be used to indicate first power supply Out;
The lock control circuit is specifically used for:
After receiving the useful signal, enable signal is exported to the dc chopper, the direct current is controlled and cuts Wave device is open-minded, so that first power supply is connected by the dc chopper with the electronic equipment.
The first or second of possible implementation, the third in second aspect in conjunction with second aspect is possible In implementation,
The output end of the detection circuit is also connected with the electronic equipment, the electronic equipment also with the lock control circuit Input terminal be connected;
The detection circuit is also used to:
When detecting that first power supply does not export electricity, the first invalid signals are exported to the electronic equipment, so that The electronic equipment is after postponing first time period to second invalid signals of lock control circuit output;
The lock control circuit is specifically also used to:
In the second invalid letter of the first invalid signals and electronic equipment output that receive the detection circuit output After number, enable signal is gone to dc chopper output, the dc chopper is controlled and disconnects, so that second electricity Source goes off state from state with the electronic equipment.
The first or second of possible implementation, the 4th kind in second aspect in conjunction with second aspect is possible In implementation, the lock control circuit is specifically also used to:
After receiving first invalid signals of detection circuit output and postponing first time period, to described Enable signal is gone in dc chopper output, is controlled the dc chopper and is disconnected, so that the second source is set with the electronics It is standby to go off state from state.
In conjunction with the first possible implementation of second aspect, in the 5th kind of possible implementation of second aspect In, the feeder ear of the detection circuit is connected with the output end of the output end of first power supply and the second source;It is described The feeder ear of lock control circuit is connected with the output end of the output end of first power supply and the second source.
In conjunction with any one aforementioned possible implementation of second aspect or second aspect, at the 6th kind of second aspect In possible implementation, first power supply be engine, the second source be on-vehicle battery, first power supply it is defeated Voltage is greater than the output voltage of the second source out.
According to a third aspect of the embodiments of the present invention, a kind of electronic equipment, the electronic equipment and the first power supply are provided It is connected with second source, is powered by first power supply or the second source, the electronic equipment includes detection circuit, control Circuit and processing unit, the input terminal of the detection circuit are connected with the output end of first power supply;The control circuit point Not with the output end of the detection circuit, the output end of first power supply, the output end of the second source and the place Unit is managed to be connected;Wherein:
The detection circuit, for detecting whether first power supply exports electricity;
Control circuit, for controlling as the processing when the detection circuit detects the first power supply output electricity The access conducting of unit power supply, so that first power supply is processing unit power supply;When the detection circuit detects institute When stating the first power supply and not exporting electricity, after the access is held on first time period, controls the access and disconnect, so as to Second source is the processing unit power supply from being stopping for the processing unit power switching.
In conjunction with the third aspect, in the first possible implementation of the third aspect, the control circuit includes lock control Circuit and dc chopper;Wherein, the output end of the input terminal of the dc chopper and the first power supply and second source is defeated Outlet is connected, and the output end of the dc chopper is connect with the processing unit;The output end of the detection circuit with it is described The input terminal of lock control circuit connects, and the output end of the lock control circuit is connect with the controlled end of the dc chopper;
The dc chopper is the electronic equipment for be turned on or off first power supply and the second source The access of power supply;
The lock control circuit is for controlling opening or disconnecting for the dc chopper.
In conjunction with the first possible implementation of the third aspect, in second of possible implementation of the third aspect In, the detection circuit is specifically used for: whether detection first power supply exports electricity;When detecting first power supply output electricity When, to the lock control circuit output useful signal, being used to indicate first power supply has electricity output;When detect it is described first electricity When source does not export electricity, to first invalid signals of lock control circuit output, being used to indicate first power supply does not have electricity output;
The lock control circuit is specifically used for: after receiving the useful signal, making to dc chopper output It is open-minded to control the dc chopper for energy signal, so that first power supply passes through the dc chopper and the electronics Equipment conducting.
The first or second of possible implementation, the third in the third aspect in conjunction with the third aspect is possible In implementation, the output end of the detection circuit is also connected with the electronic equipment, the electronic equipment also with the lock control The input terminal of circuit is connected;
The detection circuit is also used to: when detecting that first power supply does not have power supply output, to the electronic equipment First invalid signals are exported, so that the electronic equipment is after postponing first time period to the lock control circuit output second Invalid signals;
The lock control circuit is specifically also used to: in first invalid signals and the institute for receiving the detection circuit output It after second invalid signals for stating electronic equipment output, is exported to the dc chopper and goes enable signal, described in control Dc chopper disconnects, so that the second source and the electronic equipment go off state from state.
The first or second of possible implementation, the 4th kind in the third aspect in conjunction with the third aspect is possible In implementation, the lock control circuit is specifically also used to: in first invalid signals for receiving detection circuit output, And after postponing first time period, enable signal is gone to dc chopper output, the dc chopper is controlled and disconnects, make It obtains the second source and the electronic equipment and goes off state from state.
In conjunction with the third aspect in the 5th kind of possible implementation of the third aspect, the feeder ear of the detection circuit with The output end of first power supply is connected with the output end of the second source;The feeder ear of the lock control circuit and described first The output end of power supply is connected with the output end of the second source.
Power supply management method and device provided in an embodiment of the present invention, power supply management device detect whether the first power supply exports Electricity, when detecting the first power supply output electricity, power supply management device control is that the access of the power electronic equipment is connected, with It is the power electronic equipment that toilet, which states the first power supply,;When detection first power supply does not export electricity, the power supply management Device controls the access and disconnects after the access is held on first time period, so that second source is from for the electricity Sub- equipment power switching is to stop being the power electronic equipment.Method and apparatus provided in an embodiment of the present invention, in the first electricity It the use of the first power supply is preferentially that power electronic equipment uses second source when the first power supply does not export electricity when the output electricity of source It is for a period of time afterwards electricity under controlling electronic devices, electricity when both having avoided single channel power supply power supply in the prior art for power electronic equipment The problem of the frequent extremely lower electricity of sub- equipment, it is thus also avoided that the problem of leading to power depletion using another way power supply for a long time, thus Improve the reliability of equipment.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The some embodiments recorded in application can also be obtained according to these attached drawings other for those of ordinary skill in the art Attached drawing.
Fig. 1 is a kind of power supply management device schematic diagram provided in an embodiment of the present invention;
Fig. 2 is another power supply management device schematic diagram provided in an embodiment of the present invention;
Fig. 3 is a kind of electronic equipment schematic diagram provided in an embodiment of the present invention;
Fig. 4 is another electronic equipment schematic diagram provided in an embodiment of the present invention;
Fig. 5 is a kind of power supply management method schematic diagram provided in an embodiment of the present invention.
Specific embodiment
Technical problems to be solved of the embodiment of the present invention provide a kind of power supply management method and device, to be overcome existing Technology is only capable of the reliability of vehicle intelligent equipment caused by powering using single channel power supply for vehicle intelligent equipment and/or move vehicle Low defect improves the reliability of vehicle intelligent equipment and/or move vehicle.
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention Range.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the" It is also intended to including most forms, unless the context clearly indicates other meaning.It is also understood that term used herein "and/or" refers to and includes that one or more associated any or all of project listed may combine.
It is a kind of power supply management device schematic diagram provided in an embodiment of the present invention referring to Fig. 1.Described device 100 includes:
Detection circuit 101, for detecting whether the first power supply exports electricity (English: electricity).
Control circuit 102, for controlling as the electricity when the detection circuit detects the first power supply output electricity The access conducting of sub- equipment power supply, so that first power supply is the power electronic equipment;When the detection circuit detects When first power supply does not export electricity, after the access is held on first time period, controls the access and disconnect, with Just second source is the power electronic equipment from stopping is switched to for the power electronic equipment.
When specific implementation, first power supply can be engine, and the second source can be on-vehicle battery, described the The output voltage of one power supply is greater than the output voltage of the second source.
When specific implementation, the input terminal of the detection circuit 101 is connect with the output end of first power supply;The control The output end with the detection circuit 101 respectively of circuit 102, the output end of first power supply, the output of the second source End and the connected of the electronic equipment
Whether the detection circuit 101 specifically can have electric current to determine by the output end for detecting first power supply State whether the first power supply exports electricity.When the detection circuit 101 detects the first power supply output electricity, then to the control Circuit 102 sends useful signal, and being used to indicate first power supply has electricity output;The control circuit 102 receives the inspection When the useful signal that slowdown monitoring circuit is sent, the access conducting for the power electronic equipment is controlled, so as to first power supply For the power electronic equipment.When the detection circuit 101 detects that first power supply does not export electricity, then to the control Circuit 102 processed sends invalid signals, and being used to indicate first power supply does not have electricity output;The control circuit 102 is described logical Road is held on after first time period, is controlled the access and is disconnected, so that second source is cut from for the power electronic equipment Being changed to stopping is the power electronic equipment.
In one embodiment, first power supply is connected with the second source by combiner, and by described Access is the power electronic equipment.When the first power supply exports electricity, described in the output voltage of first power supply is greater than The output voltage of second source, first power supply can be the power electronic equipment, while can also fill for second source Electricity.In this way, it is described that the second source, which can have more sufficient electricity, in the case where first power supply does not export electricity Power electronic equipment.
First power supply or the second source are the power electronic equipment, specifically be can be as the electronic equipment Processing unit power supply, the processing unit for example can be central processing unit (CPU);It is also possible to for the electronic equipment The power supply such as Power Management Unit or power supply system.The invention does not limit this.
The power supply management device 100 can be powered by first power supply or the second source.Specifically, the inspection The feeder ear of slowdown monitoring circuit 101 is connected with the output end of the output end of first power supply and the second source;The control electricity The feeder ear on road 102 is connected with the output end of the output end of first power supply and the second source.Certainly, described for fulgurite Managing device 100 can also be powered by third power supply, such as dry cell, button cell etc..
Power supply management device provided in an embodiment of the present invention, by detecting whether the first power supply exports electricity, when detecting When stating the first power supply output electricity, the access conducting for the power electronic equipment is controlled, so that first power supply is the electricity Sub- equipment power supply;When detection first power supply does not export electricity, after the access is held on first time period, control It makes the access to disconnect, so that second source is the power electronic equipment from stopping is switched to for the power electronic equipment. The power supply management device provided through the embodiment of the present invention is preferentially electronics using the first power supply when the first power supply exports electricity Equipment power supply, when the first power supply does not export electricity, using second source be power electronic equipment for a period of time after, control electricity It is electric under sub- equipment, the problem of the frequent extremely lower electricity of electronic equipment when both can solve single channel power supply power supply in this way, it is thus also avoided that grow The problem of time leads to power depletion using second source, to improve the reliability of equipment.
It is another kind provided in an embodiment of the present invention for fulgurite referring to fig. 2 on the basis of power supply management device shown in Fig. 1 Manage schematic device.The power supply management device 200 includes detection circuit 201, lock control circuit 202, dc chopper 203.Its In, the lock control circuit 202, dc chopper 203 can collectively form control circuit 102 described in Fig. 1.
As shown in Fig. 2, the output of the output end and second source of the input terminal and the first power supply of the dc chopper 203 End is connected, and the output end of the dc chopper 203 is connect with the electronic equipment;The output end of the detection circuit 201 with The input terminal of the lock control circuit 202 connects, and the output end of the lock control circuit 202 is controlled with the dc chopper 203 End connection, the output end of the dc chopper 203 are connect with the processing unit of the electronic equipment.
Detection circuit 201, for detecting whether the first power supply exports electricity;
The dc chopper 203 is that the electronics is set for be turned on or off first power supply and the second source The access of available electricity;
The lock control circuit 202 is opened or is disconnected for controlling the dc chopper 203.
The detection circuit 201 is specifically used for: whether the first power supply of detection exports electricity;When detecting that first power supply is defeated When electric out, useful signal is exported to the lock control circuit 202, is used to indicate the first power supply output electricity;It is described when detecting When first power supply does not export electricity, the first invalid signals are exported to the lock control circuit 202, being used to indicate first power supply does not have Output electricity.The lock control circuit 202 is specifically used for after receiving the useful signal that the detection circuit 201 exports, to The dc chopper 203 exports enable signal, it is open-minded to control the dc chopper 203, so that first power supply passes through The dc chopper 203 is connected with the electronic equipment.
The lock control circuit 202 is specifically also used to: in the described first invalid letter for receiving the output of detection circuit 201 Number, and after postponing first time period, enable signal is gone to the dc chopper 203 output, controls the dc chopper 203 disconnect, so that the second source and the electronic equipment go off state from state.Wherein, described first when Between section specifically refer to the lock control circuit 202 and go enable signal elapsed time to output from receiving the first invalid signals. The first time period can be previously according to needing to be arranged, the cruise duration of the generally less than described second source.
Alternatively, the output end of the detection circuit 201 is also connected with the electronic equipment, the electronic equipment also with The input terminal of the lock control circuit 202 is connected;Correspondingly, the detection circuit 201 is also used to: when detecting first power supply When not having electricity output, first invalid signals are exported to the electronic equipment, so that the electronic equipment is when postponing first Between section the lock control circuit 202 exports the second invalid signals backward.The lock control circuit 202 is specifically also used to: receiving After stating first invalid signals of detection circuit output and second invalid signals of electronic equipment output, to institute State the output of dc chopper 203 and go enable signal, control the dc chopper 203 and disconnect so that the second source with The electronic equipment goes off state from state.Wherein, the first time period is specifically the electronic equipment from connecing The first invalid signals are received to the second invalid signals elapsed time of output.The first time period can be previously according to needs Setting, the cruise duration of the generally less than described second source.
The present invention without limiting, such as can represent useful signal with value to the form of the useful signal for 1, be worth and be 0 representative is invalid signals.Alternatively, can also represent useful signal with high level, low level represents invalid signals.
Wherein, dc chopper 203 is a kind of DC-DC converter (DC/DC converter).Dc chopper Also it is DC interrupter, basic role is the pressure regulation of direct current, can be used for the speed control of direct current generator, exchange type power supplies Answer etc..Opening and disconnecting for the dc chopper 203 is controlled by the lock control circuit 202, may be controlled to described The access of power electronic equipment is turned on or off, so that first power supply or second source are the electronic equipment Power supply stops power supply.Meanwhile the dc chopper 203 can also be by the output of first power supply or the second source Voltage is converted to the operating voltage of the electronic equipment.The lock control circuit 202 exports enabled letter to the dc chopper 203 Number, it is open-minded to control the dc chopper 203, so that the access is connected, first power supply or the second source For the power electronic equipment, the electronic equipment described in this way can electrifying startup, start to work.
The power supply management device 200 can be powered by first power supply or the second source.Specifically, the inspection The feeder ear of slowdown monitoring circuit 201 is connected with the output end of the output end of first power supply and the second source;The lock control electricity The feeder ear on road 202 is connected with the output end of the output end of first power supply and the second source.Certainly, described for fulgurite Managing device 200 can also be powered by third power supply, such as dry cell, button cell etc..
The electronic equipment can perceive first invalid signals by way of poll or down trigger.For example, The output end of the detection circuit 201 is connected with the first control pin of the processing unit of the electronic equipment, and the electronics is set Second control pin of standby processing unit is connected with the input terminal of the lock control circuit 202;The processing list of the electronic equipment The signal of first pin described in first periodic polling determines whether first power supply has electricity defeated according to the signal of first pin Out.For example, first pin, when receiving first invalid signals that the lock control circuit 202 is sent, triggering is interrupted, Notify the event of the first power outage described in the processing unit of the electronic equipment, then the processing unit of the electronic equipment Timer will be started, when reaching the first time period, send second invalid signals to the lock control circuit 202.
Wherein, the first time period refers to the processing unit of the electronic equipment from the first invalid signals are received to defeated Second invalid signals elapsed time out.The first time period can previously according to needing to be arranged, generally less than described The cruise duration of two power supplys.Certainly, the first time period is also possible to unfixed, by electronic equipment processing unit voluntarily It when determines to the second invalid signals of lock control circuit output.First time of the processing unit of the electronic equipment in the delay In section, each processing unit can be notified to carry out necessary processing.For example, the location information of vehicle, log are reported into server, In order to the information on services of vehicle described in the server analysis.For another example, station network is connected, from server update file etc.. The processing that the present invention does the processing unit of the electronic equipment in the first time period is not limited.
Power supply management device provided in an embodiment of the present invention, it is defeated to the dc chopper by the lock control circuit 202 Enable signal of going out controls opening or disconnecting for the dc chopper 203, when the first power supply has electricity output, preferentially uses the One power supply is power electronic equipment, is the power electronic equipment by second source after the first power supply does not export electricity, and In delay certain time, after electronic equipment carries out respective handling, stop ensure that electronic equipment both for the power electronic equipment The problem of causing second source to exhaust using second source for a long time will not be also avoided, is set to improve by abnormal lower electricity Standby reliability.
It should be noted that Fig. 1, power supply management device shown in Fig. 2 can be independent hardware device, such as be connected to Between first power supply, second source and the electronic equipment, to be that the electronics is set using first power supply and second source Available electricity.The power supply management device can be set in the car, provide interface, for connecting electronic equipment, thus intelligently For the power electronic equipment, power-off.It should be noted that the power supply management device can also be arranged in the electronic device, Power supply module as the electronic equipment exists.For another example, when the power supply management device includes processing unit, can be The processing unit power supply of itself.At this moment, the power supply management device can be with the supply object of the power supply management device, i.e. institute Electronic equipment is stated, is the same equipment.
It is a kind of electronic equipment schematic diagram provided in an embodiment of the present invention, the electronic equipment 300 and first referring to Fig. 3 Power supply is connected with second source, is powered by first power supply or the second source.The electronic equipment 300 includes detection electricity Road 301, control circuit 302 and processing unit 303;The output end of the input terminal of the detection circuit 301 and first power supply It is connected;The control circuit 302 output end with the detection circuit 301 respectively, the output end of first power supply, described The output end of two power supplys and the processing unit 303 are connected;Wherein:
The detection circuit 301, for detecting whether first power supply exports electricity;
Control circuit 302, for controlling as institute when the detection circuit 301 detects the first power supply output electricity The access conducting that the processing unit 303 of electronic equipment is powered is stated, so as to the processing list that first power supply is the electronic equipment Member 303 is powered;When the detection circuit 301 detects that first power supply does not export electricity, it is held in the access It after first time period, controls the access and disconnects, so that second source is from being that stopping is for the processing unit power switching The processing unit power supply.
Wherein, the specific implementation of control circuit 302 is referred to embodiment shown in fig. 1 or fig. 2.Certainly, this field For technical staff it is understood that control circuit 302 can also have other implementations, the present invention is not limited this.
The detection circuit 301 and control circuit 302 of the electronic equipment can be by first power supply or second electricity Source power supply.Specifically, the output end of the feeder ear of the detection circuit 301 and first power supply and the second source is defeated Outlet is connected;The feeder ear of the control circuit 302 and the output end of first power supply and the output end of the second source It is connected.
When specific implementation, first power supply can be engine, and the second source can be on-vehicle battery, described the The output voltage of one power supply is greater than the output voltage of the second source.
On the basis of electronic equipment shown in Fig. 3, referring to fig. 4, show for another electronic equipment provided in an embodiment of the present invention It is intended to.The electronic equipment 400 includes detection circuit 401, processing unit 404, lock control circuit 402 and dc chopper 403.Its In, the lock control circuit 402, dc chopper 403 can collectively form control circuit 302 described in Fig. 3.
Wherein, the output end phase of the input terminal of the dc chopper 403 and the output end of the first power supply and second source Even, the output end of the dc chopper is connect with the processing unit 404;The output end of the detection circuit 401 with it is described The input terminal of lock control circuit 402 connects, and the controlled end of the output end of the lock control circuit 402 and the dc chopper 403 connects It connects;
The dc chopper 403 is that the electronics is set for be turned on or off first power supply and the second source The access of available electricity;
The lock control circuit 402 is for controlling opening or disconnecting for the dc chopper.
The detection circuit 401 is specifically used for:
Detect whether first power supply exports electricity;When detecting the first power supply output electricity, the detection circuit 401 export useful signal to the lock control circuit 402, and being used to indicate first power supply has electricity output;When detecting described When one power supply does not export electricity, the detection circuit 401 exports the first invalid signals to the lock control circuit 402, is used to indicate First power supply does not have electricity output.
The lock control circuit 402 is used for after receiving the useful signal, is made to the dc chopper 403 output It is open-minded to control the dc chopper 403 for energy signal, so that first power supply 301 passes through the dc chopper 403 and institute The processing unit 404 for stating electronic equipment is connected.
The lock control circuit 402 is also used to:
First invalid signals of detection circuit output are being received, and after postponing first time period, to institute It states the output of dc chopper 403 and goes enable signal, control the dc chopper 403 and disconnect, so that the second source and institute It states electronic equipment and goes off state from state.
Wherein, dc chopper 403 is a kind of DC-DC converter (DC/DC converter), also makes direct current disconnected Continuous device, basic role is the pressure regulation of direct current, can be used for speed control, switch power supply of direct current generator etc.. Opening and disconnecting for the dc chopper 403 is controlled by the lock control circuit 402, may be controlled to the electronic equipment The access that processing unit 404 is powered is turned on or off, so that first power supply or second source are the electronics Equipment power supply stops power supply.Meanwhile the dc chopper 403 can also be by first power supply or the second source Output voltage is converted to the operating voltage of the electronic equipment 400.
Alternatively, the output end of the detection circuit is also connected with the processing unit, the processing unit also with institute The input terminal for stating lock control circuit is connected;Correspondingly, the detection circuit is also used to: when detecting that first power supply do not have power supply When output, first invalid signals are exported to the processing unit, so that the processing unit is after postponing first time period To second invalid signals of lock control circuit output.The lock control circuit is specifically also used to: receiving, the detection circuit is defeated After second invalid signals of first invalid signals and processing unit output out, to the dc chopper Enable signal is gone in output, is controlled the dc chopper and is disconnected, so that the second source and the electronic equipment are from conducting State goes off state.
The detection circuit and control circuit of the electronic equipment can be powered by first power supply or the second source. Specifically, the feeder ear of the detection circuit 401 and the output end of first power supply and the output end phase of the second source Even (not shown);The output end and the second source of the feeder ear of the lock control circuit 402 and first power supply Output end is connected (not shown).
It should be noted that Fig. 3 or electronic equipment shown in Fig. 4 can be vehicle intelligent equipment, it can also be other electricity Sub- equipment, the present invention are not limited this.When the electronic equipment is vehicle intelligent equipment, first power supply is to start Machine, the second source are on-vehicle battery, and the output voltage of the engine is greater than the output voltage of the on-vehicle battery, vehicle key Spoon is equivalent to the power switch of the first power supply.First power supply is connected with second source by combiner, and (straight by the access Flow chopper 403) it is the power electronic equipment.When the first power supply exports electricity, due to the output voltage of first power supply Greater than the output voltage of the second source, first power supply is electronic equipment confession by the dc chopper 403 Electricity, while can also be on-vehicle battery, i.e. second source charging are when detection circuit is in detect that engine is connected first When power supply output electricity, useful signal is sent to lock control circuit, after lock control circuit receives useful signal, to the dc chopper 403 send enable signal, and control dc chopper 403 is powered to the CPU of mobile unit.When detection circuit detects that engine stops When only powering, invalid signals are exported to lock control circuit and CPU.After CPU notifies correlation unit to carry out respective handling, that is, postpone first After time, invalid signals are sent to the lock control circuit.Lock control circuit receive detection circuit and CPU send respectively it is invalid After signal, that is, enable signal is exported to dc chopper 403, control it and stop being that CPU powers, it is electric under mobile unit at this time.
When electric under equipment, detection circuit and lock control circuit consume a small amount of power supply output.Certainly, detection circuit and lock control electricity Road can be powered by the first power supply or second source, can also be by third power supply power supply, such as dry cell, button cell etc..
It is a kind of power supply management method schematic diagram provided in an embodiment of the present invention referring to Fig. 5.Method shown in fig. 5 can be with It is applied to Fig. 1, in power supply management device shown in Fig. 2 or in Fig. 3, electronic equipment shown in Fig. 4.The described method includes:
S501, power supply management device detect whether the first power supply exports electricity.
S502, when detecting the first power supply output electricity, the power supply management device control is the electronic equipment The access of power supply is connected, so that first power supply is the power electronic equipment.
S503, when detecting that first power supply does not export electricity, the power supply management device is kept in the access It after first time period is connected, controls the access and disconnects, so that second source stops from being switched to for the power electronic equipment It is only the power electronic equipment.
Wherein, the power supply management device includes detection circuit, lock control circuit and dc chopper;Wherein, the direct current The input terminal of chopper is connected with the output end of the output end of the first power supply and second source, the output end of the dc chopper It is connect with the electronic equipment;The input terminal of the detection circuit is connected with the output end of first power supply, the detection electricity The output end on road is connect with the input terminal of the lock control circuit, the output end of the lock control circuit and the dc chopper by Control end connection;
Whether the first power supply of the power supply management device detection, which exports electricity, includes:
The detection circuit detects whether first power supply exports electricity;
When detecting first power supply output electricity, the detection circuit to the lock control circuit output useful signal, Being used to indicate first power supply has electricity output;When detecting that first power supply does not export electricity, the detection circuit to First invalid signals of lock control circuit output, being used to indicate first power supply does not have electricity output.
Wherein, described when detecting the first power supply output electricity, the power supply management device control is the electronics The access conducting of equipment power supply, so that first power supply is that the power electronic equipment includes:
The lock control circuit exports enable signal, control after receiving the useful signal, to the dc chopper It is open-minded to make the dc chopper, so that first power supply is connected by the dc chopper with the electronic equipment.
Wherein, when detecting that first power supply does not export electricity, the method also includes:
The detection circuit sets the first invalid signals of output to the electronics;
It is described when detecting that first power supply does not export electricity, the power supply management device the access holding lead After logical first time period, controls the access and disconnect, so that second source is switched to stopping from for the power electronic equipment Include: for the power electronic equipment
The lock control circuit is in first invalid signals and the electronic equipment for receiving the detection circuit output After second invalid signals of output, enable signal is gone to dc chopper output, the dc chopper is controlled and disconnects, So that the second source and the electronic equipment go off state from state;
Second invalid signals are that the electronic equipment is receiving first invalid signals, delay first time period The backward lock control circuit output.
Alternatively, described when detecting that first power supply does not export electricity, the power supply management device is described Access is held on after first time period, is controlled the access and is disconnected, so that second source is from for the power electronic equipment Being switched to stopping is that the power electronic equipment includes:
The lock control circuit is receiving first invalid signals of the detection circuit output and is postponing at the first time After section, enable signal is gone to dc chopper output, the dc chopper is controlled and disconnects, so that the second source State is gone off from state with the processing unit of the electronic equipment.
It is more simple to the introduction of embodiment of the method above, it can refer to Installation practice and realize that method of the invention is implemented Example.
The present invention program can describe in the general context of computer-executable instructions executed by a computer, such as Program unit.Generally, program unit include routines performing specific tasks or implementing specific abstract data types, it is program, right As, component, data structure etc..The present invention program can also be practiced in a distributed computing environment, in these distributed computings In environment, by executing task by the connected remote processing devices of communication network.In a distributed computing environment, program Unit can be located in the local and remote computer storage media including storage equipment.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment Dividing may refer to each other, and the highlights of each of the examples are differences from other embodiments.Especially for device reality For applying example, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to embodiment of the method Part explanation.The apparatus embodiments described above are merely exemplary, wherein described be used as separate part description Unit may or may not be physically separated, component shown as a unit may or may not be Physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to the actual needs Some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying In the case where creative work, it can understand and implement.
The embodiment of the present invention has been described in detail above, and specific embodiment used herein carries out the present invention It illustrates, the above description of the embodiments is only used to help understand the method and apparatus of the present invention;Meanwhile for the one of this field As technical staff, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, to sum up institute It states, the contents of this specification are not to be construed as limiting the invention.

Claims (17)

1. a kind of power supply management method, which is characterized in that applied to the power supply management to electronic equipment, the electronic equipment and confession The connection of electric managing device, the power supply management device includes detection circuit and control circuit, the input terminal of the detection circuit with The output end of first power supply connects, the control circuit respectively with the output end of the detection circuit, first power supply it is defeated Outlet, the output end of second source and the electronic equipment are connected, wherein and first power supply is engine, described second Power supply is on-vehicle battery, and the output voltage of first power supply is greater than the output voltage of the second source, which comprises
The power supply management device detects whether first power supply exports electricity;
When detecting the first power supply output electricity, the power supply management device control is the access of the power electronic equipment Conducting, so that first power supply is the power electronic equipment;
When detecting that first power supply does not export electricity, the power supply management device is when the access is held on first Between after section, control the access and disconnect, so that the second source is institute from stopping is switched to for the power electronic equipment State power electronic equipment.
2. the method according to claim 1, wherein the control circuit includes lock control circuit and DC chopped-wave Device;Wherein, the input terminal of the dc chopper and the output end of first power supply and the output end phase of the second source Even, the output end of the dc chopper is connect with the electronic equipment;The output end of the detection circuit and lock control electricity The input terminal on road connects, and the output end of the lock control circuit is connect with the controlled end of the dc chopper;The power supply management Whether device detection first power supply, which exports electricity, includes:
The detection circuit detects whether first power supply exports electricity;
When detecting the first power supply output electricity, the detection circuit is used for the lock control circuit output useful signal Indicate that first power supply has electricity output;
When detecting that first power supply does not export electricity, the detection circuit is believed in vain to the lock control circuit output first Number, being used to indicate first power supply does not have electricity output.
3. according to the method described in claim 2, it is characterized in that, described when detecting the first power supply output electricity, institute It states the access that power supply management device control is the power electronic equipment to be connected, so that first power supply is the electronic equipment Power supply includes:
The lock control circuit exports enable signal after receiving the useful signal, to the dc chopper, controls institute It is open-minded to state dc chopper, so that first power supply is connected by the dc chopper with the electronic equipment.
4. according to the method described in claim 2, it is characterized in that, when detecting that first power supply does not export electricity,
The detection circuit exports first invalid signals to the electronic equipment;
It is described when detecting that first power supply does not export electricity, the power supply management device is held in the access After one period, controls the access and disconnect, so that the second source is switched to stopping from for the power electronic equipment Include: for the power electronic equipment
The lock control circuit is in first invalid signals and the electronic equipment output for receiving the detection circuit output The second invalid signals after, go enable signal to dc chopper output, control the dc chopper and disconnect so that It obtains the second source and the electronic equipment and goes off state from state;Second invalid signals are the electronics Equipment is after receiving first invalid signals, delay first time period to the lock control circuit output.
5. according to the method described in claim 2, it is characterized in that, described ought detect that first power supply does not export electricity When, the power supply management device controls the access and disconnects, so as to described after the access is held on first time period Second source is that the power electronic equipment includes: from stopping is switched to for the power electronic equipment
The lock control circuit is receiving first invalid signals of detection circuit output, and postpone first time period it Afterwards, go enable signal to dc chopper output, control the dc chopper and disconnect so that the second source with The electronic equipment goes off state from state.
6. a kind of power supply management device, which is characterized in that described device includes:
Detection circuit, for detecting whether the first power supply exports electricity;
Control circuit, for controlling as power electronic equipment when the detection circuit detects the first power supply output electricity Access conducting, so as to first power supply be the power electronic equipment;When the detection circuit detects first electricity When source does not export electricity, after the access is held on first time period, controls the access and disconnect, so as to second source It is the power electronic equipment from stopping is switched to for the power electronic equipment;
Wherein, the input terminal of the detection circuit is connected with the output end of first power supply;The control circuit respectively with institute State the output end of detection circuit, the output end of first power supply, the output end of the second source and the electronic equipment It is connected;Wherein, first power supply is engine, and the second source is on-vehicle battery, the output voltage of first power supply Greater than the output voltage of the second source.
7. device according to claim 6, which is characterized in that the control circuit includes lock control circuit and DC chopped-wave Device;Wherein, the input terminal of the dc chopper is connected with the output end of the output end of the first power supply and second source, described straight The output end of stream chopper is connect with the electronic equipment;The input terminal of the output end of the detection circuit and the lock control circuit Connection, the output end of the lock control circuit are connect with the controlled end of the dc chopper;
The dc chopper is the power electronic equipment for be turned on or off first power supply and the second source The access;
The lock control circuit is opened or is disconnected for controlling the dc chopper.
8. device according to claim 7, which is characterized in that
The detection circuit is specifically used for: whether the first power supply of detection exports electricity;When detecting the first power supply output electricity, To the lock control circuit output useful signal, being used to indicate first power supply has electricity output;When detecting first power supply When not exporting electricity, to first invalid signals of lock control circuit output, being used to indicate first power supply does not have electricity output;
The lock control circuit is specifically used for: after receiving the useful signal, exporting enabled letter to the dc chopper Number, it is open-minded to control the dc chopper, so that first power supply passes through the dc chopper and the electronic equipment Conducting.
9. device according to claim 8, which is characterized in that the output end of the detection circuit also with the electronic equipment It is connected, the electronic equipment is also connected with the input terminal of the lock control circuit;
The detection circuit is also used to: when detecting that first power supply does not have electricity output, exporting institute to the electronic equipment The first invalid signals are stated, so that the electronic equipment is believed after postponing first time period to the lock control circuit output second in vain Number;
The lock control circuit is specifically also used to: in first invalid signals and the electricity for receiving the detection circuit output After second invalid signals of sub- equipment output, enable signal is gone to dc chopper output, controls the direct current Chopper disconnects, so that the second source and the electronic equipment go off state from state.
10. device according to claim 8, which is characterized in that the lock control circuit is specifically also used to: described receiving First invalid signals of detection circuit output, and after postponing first time period, it goes to make to dc chopper output Energy signal controls the dc chopper and disconnects, so that the second source becomes disconnected from state with the electronic equipment Open state.
11. device according to claim 7, which is characterized in that the feeder ear of the detection circuit and first power supply Output end be connected with the output end of the second source;The output end of the feeder ear of the lock control circuit and first power supply It is connected with the output end of the second source.
12. a kind of electronic equipment, the electronic equipment is connected with the first power supply and second source, by first power supply or described Second source power supply, which is characterized in that the electronic equipment includes detection circuit, control circuit and processing unit;The detection The input terminal of circuit is connected with the output end of first power supply;The control circuit output with the detection circuit respectively End, the output end of first power supply, the output end of the second source and the processing unit are connected;Wherein, described One power supply is engine, and the second source is on-vehicle battery, and the output voltage of first power supply is greater than the second source Output voltage, in which:
The detection circuit, for detecting whether first power supply exports electricity;
Control circuit, for controlling as the processing unit when the detection circuit detects the first power supply output electricity The access of power supply is connected, so that first power supply is processing unit power supply;When the detection circuit detects described When one power supply does not export electricity, after the access is held on first time period, controls the access and disconnect, so as to second Power supply is the processing unit power supply from being stopping for the processing unit power switching.
13. electronic equipment according to claim 12, which is characterized in that the control circuit includes lock control circuit and direct current Chopper;Wherein, the output of the output end and the second source of the input terminal of the dc chopper and first power supply End is connected, and the output end of the dc chopper is connect with the processing unit;The output end of the detection circuit and the lock The input terminal connection of circuit is controlled, the output end of the lock control circuit is connect with the controlled end of the dc chopper;
The dc chopper is the power electronic equipment for be turned on or off first power supply and the second source The access;
The lock control circuit is for controlling opening or disconnecting for the dc chopper.
14. electronic equipment according to claim 13, which is characterized in that
The detection circuit is specifically used for: whether detection first power supply exports electricity;When detecting first power supply output When electric, to the lock control circuit output useful signal, being used to indicate first power supply has electricity output;When detecting described first When power supply does not export electricity, to first invalid signals of lock control circuit output, it is defeated without electricity to be used to indicate first power supply Out;
The lock control circuit is specifically used for: after receiving the useful signal, exporting enabled letter to the dc chopper Number, it is open-minded to control the dc chopper, so that first power supply passes through the dc chopper and the electronic equipment Conducting.
15. electronic equipment according to claim 14, which is characterized in that the output end of the detection circuit also with the electricity Sub- equipment is connected, and the electronic equipment is also connected with the input terminal of the lock control circuit;
The detection circuit is also used to: when detecting that first power supply does not have power supply output, being exported to the electronic equipment First invalid signals, so that the electronic equipment is invalid to the lock control circuit output second after postponing first time period Signal;
The lock control circuit is specifically also used to: in first invalid signals and the electricity for receiving the detection circuit output After second invalid signals of sub- equipment output, enable signal is gone to dc chopper output, controls the direct current Chopper disconnects, so that the second source and the electronic equipment go off state from state.
16. electronic equipment according to claim 14, which is characterized in that the lock control circuit is specifically also used to: being received First invalid signals exported to the detection circuit, and after postponing first time period, it is defeated to the dc chopper It goes out enable signal, controls the dc chopper and disconnect, so that the second source and the electronic equipment are from state Go off state.
17. electronic equipment according to claim 13, which is characterized in that the feeder ear of the detection circuit and described first The output end of power supply is connected with the output end of the second source;The feeder ear of the lock control circuit is defeated with first power supply Outlet is connected with the output end of the second source.
CN201410425913.8A 2014-08-26 2014-08-26 A kind of power supply management method and device Active CN105449833B (en)

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CN201410425913.8A CN105449833B (en) 2014-08-26 2014-08-26 A kind of power supply management method and device
PCT/CN2015/070117 WO2016029625A1 (en) 2014-08-26 2015-01-05 Power supply management method and apparatus

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CN201410425913.8A CN105449833B (en) 2014-08-26 2014-08-26 A kind of power supply management method and device

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2859899Y (en) * 2005-12-19 2007-01-17 上海甲秀工业设计有限公司 Solar energy auto-compensating electronic controls
CN201032687Y (en) * 2007-03-08 2008-03-05 陈暨 Triggering type power supply switching mechanism for cars
CN201075730Y (en) * 2007-09-28 2008-06-18 渤海船舶重工有限责任公司 Commutation back-up power supply device

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Publication number Priority date Publication date Assignee Title
CN1829042A (en) * 2005-02-28 2006-09-06 蔡可健 Photovoltaic power supply preferential full-automatic power consumption adjuster

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2859899Y (en) * 2005-12-19 2007-01-17 上海甲秀工业设计有限公司 Solar energy auto-compensating electronic controls
CN201032687Y (en) * 2007-03-08 2008-03-05 陈暨 Triggering type power supply switching mechanism for cars
CN201075730Y (en) * 2007-09-28 2008-06-18 渤海船舶重工有限责任公司 Commutation back-up power supply device

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