CN204928248U - Power management means - Google Patents

Power management means Download PDF

Info

Publication number
CN204928248U
CN204928248U CN201520628791.2U CN201520628791U CN204928248U CN 204928248 U CN204928248 U CN 204928248U CN 201520628791 U CN201520628791 U CN 201520628791U CN 204928248 U CN204928248 U CN 204928248U
Authority
CN
China
Prior art keywords
battery
pressurizer
enable signal
obu
detection module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201520628791.2U
Other languages
Chinese (zh)
Inventor
段起志
贾安州
史国涛
李振华
王胜华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing WatchData System Co Ltd
Beijing WatchSmart Technologies Co Ltd
Original Assignee
Beijing WatchSmart Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing WatchSmart Technologies Co Ltd filed Critical Beijing WatchSmart Technologies Co Ltd
Priority to CN201520628791.2U priority Critical patent/CN204928248U/en
Application granted granted Critical
Publication of CN204928248U publication Critical patent/CN204928248U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a power management means is applied to OBU, including battery and first stabiliser, the battery is connected with the power input end of first stabiliser, the battery provides the power through the MCU of first stabiliser in to OBU, the device still includes detection module, detection module's input and battery are connected, detection module detects battery output voltage to generate enable signal according to output voltage and presupposition voltage threshold value, detection module's output is connected with the power input of first stabiliser end, detection module still sends enable signal to first stabiliser, first stabiliser is received and whether is provided the power to the MCU among the OBU according to enable signal control batteries. Adopt the technical scheme of the utility model, gone on protecting effectively to the battery, avoided the battery to work always, exhausted up to the electric quantity, made OBU scrap to OBU's life has been prolonged effectively.

Description

Electric power controller
Technical field
The utility model relates to electrical application technology field, particularly relates to a kind of electric power controller.
Background technology
Board units (OnBoardUnit; And drive test unit (Road-SideUnit OBU); RSU) be electronic charging (ElectronicTollCollection; ETC) chief component of system.Wherein OBU is put onboard, and stores the information of corresponding vehicle; RSU is arranged on charge station side, and when the vehicle that OBU is housed is by charge station, RSU is connected with OBU by wireless communication mode, thus obtains the information that the vehicle of OBU is housed, and achieves the information interaction between vehicle and charge station.
Electric power controller directly affects the useful life of OBU, generally adopts battery to provide system voltage to OBU in the electric power controller of traditional OBU after pressurizer, and to micro control unit (MicrocontrollerUnit; MCU) power, and MCU can have sleep and activate two states by control OBU, vehicle is through being equipped with the charge station of RSU, and OBU is waken up, and concludes the business.Other times OBU can be in sleep state, and when sleep state, MCU power consumption is very little, saves the electricity of battery, extends the service time of battery, thus extends the useful life of OBU.
But, electric power controller of the prior art to the electricity of battery without any Detection & Controling, even if not enough in when cannot ensure that OBU carries out arm's length dealing at battery electric quantity, vehicle is through being equipped with the charge station of RSU, and OBU is still waken up, and now the system voltage of OBU can be pulled low to the normal working voltage being less than MCU instantaneously, cause the MCU actuating logic mistake in OBU, until dead battery capability, OBU scraps, and cannot continue to use.
Utility model content
The utility model provides a kind of electric power controller, to solve electric power controller of the prior art in the not enough situation of battery electric quantity, after OBU is waken up due to without any Detection & Controling, make battery power consumption excessive, cause OBU to scrap, and then make OBU cannot continue the problem used.
The utility model provides a kind of electric power controller, is applied in OBU, comprises: battery and the first pressurizer, and described battery is connected with the power input of described first pressurizer; Described battery, for providing power supply by described first pressurizer to the MCU in described OBU;
Described device also comprises detection module; The input of described detection module is connected with described battery; Described detection module, for detecting the output voltage of described battery, and generates enable signal according to the output voltage of described battery and predetermined voltage threshold;
The output of described detection module is connected with the enable input of described first pressurizer; Described detection module, also for sending described enable signal to described first pressurizer;
Described first pressurizer, for receiving described enable signal, and controls described battery according to described enable signal and whether provides power supply to the described MCU in described OBU.
Further, in device described above, described detection module, specifically for when detecting that the output voltage of described battery is greater than described predetermined voltage threshold, generates high level enable signal;
Or described detection module, specifically for when detecting that the output voltage of described battery is less than or equal to described predetermined voltage threshold, generating low level and forbidding enable signal.
Further, in device described above, described first pressurizer, specifically for receiving described high level enable signal, and controls described battery according to described high level enable signal and powers to the described MCU in described OBU;
Or described first pressurizer, forbids enable signal specifically for receiving described low level, and forbid that enable signal controls described battery and do not power to the described MCU in described OBU according to described low level.
Further, in device described above, described battery adopts rechargeable battery or the first primary cell to realize.
Further, in device described above, when described battery adopts described rechargeable battery, described device also comprises charging module, and the output of described charging module is connected with described rechargeable battery; Described charging module, for charging to described rechargeable battery.
Further, in device described above, described charging module adopts at least one in solar recharging module and primary cell charging module.
Further, in device described above, described solar recharging module comprises solar cell and the second pressurizer; Described solar cell is connected with the input of described second pressurizer; The output of described second pressurizer is connected with described rechargeable battery; Described second pressurizer, for the voltage regulating described solar cell to export, and charges to described rechargeable battery.
Further, in device described above, described primary cell charging module comprises the second primary cell and diode; Described second primary cell is connected with the input of described diode; The output of described diode is connected with described rechargeable battery.
Electric power controller of the present utility model, the output voltage of battery is detected by detection module, according to output voltage and the predetermined voltage threshold generation enable signal of battery, and be sent to the first pressurizer, make the first pressurizer control battery according to the enable signal generated and whether OBU is powered.Adopt the technical solution of the utility model, whether detection module can control battery according to enable signal and power to the MCU in OBU, has carried out effectively protecting to battery; avoid battery to work always; until electricity exhausts, OBU is scrapped, thus effectively extend the useful life of OBU.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model electric power controller one embodiment;
Fig. 2 is the structural representation of another embodiment of the utility model electric power controller;
Fig. 3 is the structural representation of the utility model electric power controller embodiment again;
Fig. 4 is the structural representation of the another embodiment of the utility model electric power controller.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structural representation of the utility model electric power controller one embodiment; As shown in Figure 1, the electric power controller of the present embodiment, is applied in OBU, comprises: battery 1 and the first pressurizer 2, and battery 1 is connected with the power input of the first pressurizer 2; Battery 1 is for providing power supply by the MCU5 in the first pressurizer 2 couples of OBU.Such as, battery 1 can adopt rechargeable battery or the first primary cell to realize, the voltage exported due to battery 1 can not ensure that constant voltage exports, the MCU5 in OBU may be made normally to work, therefore the output voltage of the first pressurizer 2 pairs of batteries 1 can be used to regulate, ensure that battery 1 can constant voltage export, to meet the operating voltage of MCU5 needs.
As shown in Figure 1, the electric power controller of the present embodiment also comprises detection module 3; The input of detection module 3 is connected with battery 1; Detection module 3 for detecting the output voltage of battery 1, and generates enable signal according to the output voltage of battery 1 and predetermined voltage threshold; The output of detection module 3 is connected with the enable input of the first pressurizer 2; Detection module 3 is also for sending enable signal to the first pressurizer 2; Whether the first pressurizer 2 for receiving enable signal, and provides power supply to the MCU5 in OBU according to enable signal control battery 1.
Such as, in detection module 3, be provided with predetermined voltage threshold, rule of thumb usual predetermined voltage threshold be set to higher than system about minimum 0.5V.Detection module 3 detects the output voltage of battery 1 at any time, and compare with predetermined voltage threshold, thus generation enable signal, the MCU5 that afterwards enable signal of generation being sent to the first pressurizer 2, first pressurizer 2 provides power supply or the first pressurizer 2 to control in battery 1 couple of OBU according to the enable signal received according to the enable signal the received MCU5 controlled in battery 1 couple of OBU does not provide power supply.
The electric power controller of the present embodiment, the output voltage of battery 1 is detected by detection module 3, according to output voltage and the predetermined voltage threshold generation enable signal of battery 1, and be sent to the first pressurizer 2, make the first pressurizer 2 control battery 1 according to the enable signal generated and whether the MCU5 in OBU is powered.Adopt the technical scheme of the present embodiment, whether detection module 3 can control battery 1 according to enable signal and power to the MCU5 in OBU, has carried out effectively protecting to battery 1; avoid battery 1 to work always; until electricity exhausts, OBU is scrapped, thus effectively extend the useful life of OBU.
Fig. 2 is the structural representation of another embodiment of the utility model electric power controller; As shown in Figure 2, electric power controller battery 1 on basis embodiment illustrated in fig. 1 of the present embodiment specifically adopts rechargeable battery 11, and when battery 1 adopts rechargeable battery 11, the electric power controller of the present embodiment also comprises charging module 4, the output of charging module 4 is connected with rechargeable battery 11; Charging module 4 is for charging to rechargeable battery 11.Such as, charging module 4 can adopt at least one in solar recharging module and primary cell charging module.
Because the transaction between OBU and RSU needs to complete instantaneously, and the leakage current of rechargeable battery 11 is little, and the electric current that sparks is greater than the electric current that sparks of the first primary cell, ensure that the stability of concluding the business between OBU and RSU; Simultaneously due to the not reusing of the first primary cell, after the first primary cell electricity is finished, need replacing first primary cell could continue to use, add the use cost of OBU, therefore usually select rechargeable battery 11 as the power supply of OBU, OBU without the need to changing battery, ensures normal power supply within useful life.But rechargeable battery 11 capacity is smaller, power consumption is fast, therefore needs charging module 4 can charge to rechargeable battery 11, ensures that rechargeable battery 11 has enough electricity, extends the useful life of OBU.
Further alternatively, in the electric power controller of the present embodiment, the enable signal that detection module 3 generates can comprise high level enable signal or low level forbids enable signal; Accordingly, detection module 3, specifically for when detecting that the output voltage of rechargeable battery 11 is greater than predetermined voltage threshold, generates high level enable signal; Or detection module 3 is specifically for when detecting that the output voltage of rechargeable battery 11 is less than or equal to predetermined voltage threshold, generates low level and forbidding enable signal.First pressurizer 2 is specifically for receiving high level enable signal, the MCU5 controlled in rechargeable battery 11 couples of OBU powers, namely the electricity of rechargeable battery 11 is enough high, the high level enable signal generated, trigger the first pressurizer 2 to work, rechargeable battery 11 provides system power supply to OBU after the first pressurizer 2 pressure regulation, and powers to MCU5, and OBU is normally worked; Or the first pressurizer 2 receives low level and forbids enable signal, the MCU5 controlled in rechargeable battery 11 couples of OBU does not power, namely the electricity of rechargeable battery 11 is lower, the low level generated forbids enable signal, first pressurizer 2 is quit work, rechargeable battery 11 cannot provide system power supply to the MCU5 in OBU, and MCU5 can not work, and therefore OBU cannot work.
It should be noted that, solar recharging module or primary cell charging module are a kind of implementation in charging module 4, and the technical scheme of the present embodiment does not limit the charging module 4 that other has charge function.
The electric power controller of the present embodiment, by adopting rechargeable battery 11 and charging module 4, ensure that the stability of the transaction of OBU and RSU, avoids to repeat replacing primary cell and cause the problem that OBU use cost is higher simultaneously.Adopt the technical scheme of the present embodiment; detection module 3 can either be made to control rechargeable battery 11 according to enable signal whether power to the MCU5 in OBU; carry out effectively protecting to rechargeable battery 11; avoid rechargeable battery 11 works until exhaust electricity always; OBU is scrapped; thus effectively extend the useful life of OBU, turn improve the efficiency of concluding the business between OBU and RSU, reduce the use cost of OBU simultaneously.
Further, in above-mentioned electric power controller embodiment illustrated in fig. 1, battery 1 also can adopt the first primary cell, now there is not charging module 4, first pressurizer 2 is identical with realization mechanism when adopting rechargeable battery 11 with the realization mechanism of detection module 3, does not repeat them here.
Fig. 3 is the structural representation of the utility model electric power controller embodiment again; As shown in Figure 3, the electric power controller of the present embodiment is on basis embodiment illustrated in fig. 2, and charging module 4 specifically adopts solar recharging module 41 and primary cell charging module 42 to realize.
As shown in Figure 3, in the electric power controller of the present embodiment, solar recharging module 41 comprises solar cell 411 and the second pressurizer 412; Solar cell 411 is connected with the input of the second pressurizer 412; The output of the second pressurizer 412 is connected with rechargeable battery 11; The voltage that second pressurizer 412 exports for regulating solar cell 411, and rechargeable battery 11 is charged.Primary cell charging module 42 comprises the second primary cell 421 and diode 422; Second primary cell 421 is connected with the input of diode 422; The output of diode 422 is connected with rechargeable battery 11.
Particularly, solar cell 411 by light energy conversion for providing normal electricity through the second pressurizer 412 pairs of rechargeable batteries 11 after electric energy, second primary cell 421 also provides normal electricity to rechargeable battery 11 after diode 422 voltage stabilizing, does not namely arrange by control apparatus elements such as any switch or relays between the second pressurizer 412 and rechargeable battery 11 and between diode 422 and rechargeable battery 11.There is provided the charging of small and weak electric current by solar cell 411 or the second primary cell 421 for rechargeable battery 11 when OBU dormancy, moment of concluding the business provides electric current by rechargeable battery 11.Solar cell 411 or the second primary cell 421 are competed and are charged to rechargeable battery 11, and rechargeable battery 11 voltage now can be depended on to rechargeable battery 11 charging, when the voltage of rechargeable battery 11 equals charging voltage, can not charge, when the voltage of rechargeable battery 11 is less than charging voltage, can charge, and between the voltage of charging voltage and rechargeable battery 11, the larger charging current of pressure reduction is larger.
Such as, solar cell 411 output voltage after the second pressurizer 412 is Vs, and the second primary cell 421 is after diode 422, and output voltage is Vb.Because the output voltage of solar cell 411 is relevant with intensity of illumination, therefore when intensity of illumination is very weak, the output voltage of solar energy may be very low, cannot charge to rechargeable battery 11, can not ensure that whether the electricity of rechargeable battery 11 is sufficient; Simultaneously due to the not reproducible usability of the second primary cell 421, therefore should ensure that the second primary cell 421 uses the longer time as much as possible, extend the useful life of OBU, so adopt solar cell 411 to use together with the second primary cell 421 in the electric power controller of this enforcement.As Vb>Vs, the second primary cell 421 charges for rechargeable battery 11, ensure that when intensity of illumination is more weak, and rechargeable battery 11 electricity is sufficient; As Vb<Vs, solar cell 411 charges for rechargeable battery 11, extends the service time of the second primary cell 421.
In the electric power controller of the present embodiment, the first pressurizer 2 is identical with realization mechanism embodiment illustrated in fig. 2 with the realization mechanism of detection module 3, does not repeat them here.
The electric power controller of the present embodiment, by adopting solar recharging module 41 and primary cell charging module 42 to compete, rechargeable battery 11 is charged, ensure that the electricity of rechargeable battery 11 is sufficient, extend the service time of the second primary cell 421, when making battery 1 electricity lower than predetermined voltage threshold by detection module 3 simultaneously, stop powering to OBU, effectively extend the useful life of OBU.Adopt the technical scheme of the present embodiment, no matter rechargeable battery 11 electricity sufficient or electricity is not enough when effectively can both extend useful life of OBU.
In the electric power controller of above-described embodiment, because solar recharging module 41 and primary cell charging module 42 pairs of rechargeable batteries 11 provide normal electricity, and the output voltage of solar cell 411 is relevant with light intensity, second 421, primary cell possesses the output constant voltage of 3.5V, therefore the second primary cell 421 first charges to rechargeable battery 11 under normal circumstances, charge to later the competition with solar cell 411 again of 3.5V to charge, namely rechargeable battery 11 is only higher than competence exertion effect during 3.5V, limits the effect of solar recharging module 41.
In order to solve the problem, electric power controller of the present utility model additionally provides following technical scheme.
Fig. 4 is the structural representation of the another embodiment of the utility model electric power controller; As shown in Figure 4, the electric power controller of the present embodiment is on Fig. 2 or basis embodiment illustrated in fig. 3, and the concrete solar recharging module 41 that only adopts of charging module 4 realizes.
As shown in Figure 4, the electric power controller of the present embodiment and difference embodiment illustrated in fig. 3 are only to have lacked primary cell charging module 42, and other detailed construction please refer to electric power controller embodiment illustrated in fig. 3, does not repeat them here.
Due to the existence of detection module 3, even if not enough at rechargeable battery 11 electricity, and solar cell 411 cannot to rechargeable battery 11 makeup energy time, detection module 3 sends low level and forbids enable signal, make the first pressurizer 2 control rechargeable battery 11 not power to the MCU5 in OBU, OBU can not damage.Simultaneously owing to only there is solar recharging module 41 in the electric power controller of the present embodiment, as long as the output voltage Vs of solar cell is greater than the voltage of rechargeable battery 11, solar cell 411 will charge to rechargeable battery 11.When rechargeable battery 11 electricity is not enough; first pressurizer 2 is in low-voltage variation state; the electric current of OBU system consumption is 0; now the energy of solar energy can be added up endlessly; until detection module 3 detects that battery 1 voltage is higher than predetermined voltage threshold, it is system power supply that rechargeable battery 11 continues through the first pressurizer 2.Take full advantage of solar cell 411, simultaneously owing to eliminating primary cell charging module 42, reduce cost.
The electric power controller of the present embodiment; charge by adopting solar recharging module 41 pairs of rechargeable batteries 11; ensure that the electricity of rechargeable battery 11 is sufficient; control rechargeable battery 11 by detection module 3 according to enable signal whether to power to the MCU5 in OBU simultaneously; carry out effectively protecting to rechargeable battery 11; avoid rechargeable battery 11 to work always, until power consumption exhausts, OBU is scrapped.Adopt the technical scheme of the present embodiment, namely make use of solar cell 411 fully, reduce cost, effectively extend again the useful life of OBU.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.

Claims (8)

1. an electric power controller, is applied in board units, it is characterized in that, comprising: battery and the first pressurizer, and described battery is connected with the power input of described first pressurizer; Described battery, for providing power supply by described first pressurizer to the micro control unit in described board units;
Described device also comprises detection module; The input of described detection module is connected with described battery; Described detection module, for detecting the output voltage of described battery, and generates enable signal according to the output voltage of described battery and predetermined voltage threshold;
The output of described detection module is connected with the enable input of described first pressurizer; Described detection module, also for sending described enable signal to described first pressurizer;
Described first pressurizer, for receiving described enable signal, and controls described battery according to described enable signal and whether provides power supply to the described micro control unit in described board units.
2. device according to claim 1, is characterized in that:
Described detection module, specifically for when detecting that the output voltage of described battery is greater than described predetermined voltage threshold, generates high level enable signal;
Or described detection module, specifically for when detecting that the output voltage of described battery is less than or equal to described predetermined voltage threshold, generating low level and forbidding enable signal.
3. device according to claim 2, is characterized in that:
Described first pressurizer, specifically for receiving described high level enable signal, and controls described battery according to described high level enable signal and powers to the described micro control unit in described board units;
Or described first pressurizer, forbids enable signal specifically for receiving described low level, and forbid that enable signal controls described battery and do not power to the described micro control unit in described board units according to described low level.
4. according to the arbitrary described device of claim 1-3, it is characterized in that, described battery adopts rechargeable battery or the first primary cell to realize.
5. device according to claim 4, is characterized in that, when described battery adopts described rechargeable battery, described device also comprises charging module, and the output of described charging module is connected with described rechargeable battery; Described charging module, for charging to described rechargeable battery.
6. device according to claim 5, is characterized in that, described charging module adopts at least one in solar recharging module and primary cell charging module.
7. device according to claim 6, is characterized in that, described solar recharging module comprises solar cell and the second pressurizer; Described solar cell is connected with the input of described second pressurizer; The output of described second pressurizer is connected with described rechargeable battery; Described second pressurizer, for the voltage regulating described solar cell to export, and charges to described rechargeable battery.
8. device according to claim 6, is characterized in that, described primary cell charging module comprises the second primary cell and diode; Described second primary cell is connected with the input of described diode; The output of described diode is connected with described rechargeable battery.
CN201520628791.2U 2015-08-19 2015-08-19 Power management means Active CN204928248U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520628791.2U CN204928248U (en) 2015-08-19 2015-08-19 Power management means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520628791.2U CN204928248U (en) 2015-08-19 2015-08-19 Power management means

Publications (1)

Publication Number Publication Date
CN204928248U true CN204928248U (en) 2015-12-30

Family

ID=54977346

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520628791.2U Active CN204928248U (en) 2015-08-19 2015-08-19 Power management means

Country Status (1)

Country Link
CN (1) CN204928248U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105760928A (en) * 2016-02-23 2016-07-13 南京苗苗智能科技有限公司 Intelligent VIN electronic tag applied to RFID of Internet of vehicles
CN109955812A (en) * 2017-12-22 2019-07-02 航天信息股份有限公司 A kind of on board unit method of supplying power to, apparatus and system
CN111163388A (en) * 2019-12-31 2020-05-15 歌尔股份有限公司 Management method and device for charging path of Bluetooth headset and readable storage medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105760928A (en) * 2016-02-23 2016-07-13 南京苗苗智能科技有限公司 Intelligent VIN electronic tag applied to RFID of Internet of vehicles
CN109955812A (en) * 2017-12-22 2019-07-02 航天信息股份有限公司 A kind of on board unit method of supplying power to, apparatus and system
CN111163388A (en) * 2019-12-31 2020-05-15 歌尔股份有限公司 Management method and device for charging path of Bluetooth headset and readable storage medium
WO2021135586A1 (en) * 2019-12-31 2021-07-08 歌尔股份有限公司 Bluetooth earphone charging path management method and apparatus, and readable storage medium

Similar Documents

Publication Publication Date Title
CN204928248U (en) Power management means
CN101572745A (en) Mobile phone current supply system and method
CN103365391A (en) Notebook battery management device and method thereof
JP6007385B2 (en) Power storage device, control method therefor, and power supply device
CN202587074U (en) Intelligent handset with double-battery power supply
CN104505905A (en) Single-charged and series-discharged lithium battery pack
CN203721146U (en) Solar bus station board with emergency charging function
CN105305572A (en) Safe hot plugging type battery supply system
CN202518115U (en) Low-voltage power supply for electric vehicle
CN211032213U (en) Direct current fills electric pile low-power consumption control system
CN201616699U (en) Charger
CN102148524B (en) Charger
TWM464918U (en) Active balance charge-discharge control device for secondary battery
CN203326667U (en) Solar energy-based fault indicator power supplying power source
CN202550648U (en) Power adapter with function of electric energy storage
KR102050993B1 (en) Hybrid solar energy storage apparatus with charging and discharging
CN103208838B (en) Power supply control method and device
CN202405836U (en) Photovoltaic charging system and charging station
CN104184179A (en) Battery control method and device, and wireless terminal
CN103208825A (en) Photovoltaic charging system and charging station
KR101418174B1 (en) Apparatus of Operation shutdown circuit using regulator for Battery management system
CN203398237U (en) Multicore battery and mobile terminal with multicore battery
CN203166954U (en) Network terminal device
JP2013239279A (en) Battery power supply system
CN203607510U (en) Electric vehicle battery pack with equalizing charge function

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant