CN103187744A - Power supply device - Google Patents
Power supply device Download PDFInfo
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- CN103187744A CN103187744A CN 201110454560 CN201110454560A CN103187744A CN 103187744 A CN103187744 A CN 103187744A CN 201110454560 CN201110454560 CN 201110454560 CN 201110454560 A CN201110454560 A CN 201110454560A CN 103187744 A CN103187744 A CN 103187744A
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Abstract
A power supply device comprises a battery pack, a controller, a switch module and an output end. The battery pack can output preset power supply voltage to a load through the output end and comprises a plurality of batteries which are connected in series and connected with the output end through the switch module. The controller is connected to the output end and the switch module to detect voltage outputted by the battery pack. The controller first sequentially controls each battery to output the preset power supply voltage individually, then sequentially controls two or more than two batteries to be connected in series and enables the total voltage outputted by the plurality of batteries connected in series to reach the preset power supply voltage until the total voltage of all the batteries sequentially connected in series is still lower than the preset power supply voltage when the voltage outputted by each battery is detected to be lower than the preset power supply voltage.
Description
Technical field
The present invention relates to a kind of supply unit, relate in particular to a kind of continuous-current plant.
Background technology
The built-in power great majority of electronic installation commonly used are DC power supply, and when its release electric energy was powered to electronic installation, the voltage of power supply generally can constantly reduce along with the minimizing of self electric quantity.In case the supply power voltage of described DC power supply is reduced to the normal starting resistor that is lower than electronic installation, DC power supply needs just can power to electronic installation after the charging again.Though this moment, DC power supply inside also stored certain electric energy, this part electric energy can't be utilized by electronic installation before charging.Obviously, above-mentioned design causes the utilance of described DC power supply lower easily, and it is comparatively frequent to charge.
Summary of the invention
In view of this, be necessary to provide a kind of utilance higher, be conducive to reduce the supply unit of charge frequency.
A kind of supply unit, comprise battery pack, controller, switch module and output, described battery pack is in order to export a supply power voltage of presetting to load by output, described battery pack comprises several batteries, described several batteries are selected series connection and are selected to be connected to described output by the switch module, described controller is connected to described output and switch module, and detect the voltage of described battery pack output, described controller is controlled each battery described default supply power voltage of output separately at first successively, and when detecting described each battery separately the voltage of output all be lower than described default supply power voltage, this controller controls successively that two or more batteries is connected mutually so that the total voltage of these a plurality of series connected battery outputs reaches described default supply power voltage, still is lower than described default supply power voltage until connect the successively total voltage of back output of all batteries.
The battery pack of described supply unit is provided with a plurality of batteries, and when single battery was exportable described predeterminated voltage, controller was controlled each battery successively and powered separately; And when described each battery electric quantity reduces so that all can't export described default supply power voltage, controller will be controlled two or more of batteries series-fed successively, the output voltage of two or more batteries is superimposed to realize exporting described default supply power voltage, connects successively till the total voltage of back output still can't reach default supply power voltage until all batteries.At this moment, remaining electric weight was low when remaining electric weight all can't be exported above-mentioned supply power voltage than single battery in described each battery under general case, and obviously, the utilance of this supply unit is higher, is conducive to reduce the frequency of charging.
Description of drawings
The structured flowchart of the supply unit that Fig. 1 provides for embodiment of the present invention.
Fig. 2 is the circuit diagram of supply unit shown in Figure 1.
The main element symbol description
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100 |
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10 |
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13 |
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15 |
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30 |
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| Sampling resistor | R |
Following embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See also Fig. 1, battery pack 50 and an output 70 that the supply unit 100 of preferred embodiments of the present invention comprises a controller 10, a switch module 30, is made up of some batteries 51.Select series connection and be connected to described output 70 by switch module 30 between described some batteries 51, and described switch module 30 is connected to controller 10, and conducting or disconnection under the control of described controller 10, make the battery 51 of some be supplied to the load (not shown) by output 70 outputs one default supply power voltage.In addition, when described controller 10 detects described supply unit 100 and is in overvoltage condition, disconnect described switch module 30 to stop described battery pack 50 output electric energy.
See also Fig. 2, described controller 10 comprises a detection module 11, a comparison module 13, a control module 15 and a driver module 17 that electrically connects successively.Described detection module 11 is connected to described output 70, in order to detect the voltage of described battery pack 50 outputs.Establish a reference voltage in the described comparison module 13, and whether more described detection module 11 detected voltages be lower than default reference voltage, and correspondence sends a signal to described control module 15.In embodiment of the present invention, described reference voltage arranges according to the default supply power voltage value of this supply unit 100.Described control module 15 receives the signal that comparison module 13 sends, and will trigger the conducting state of the described switch module 30 of driver module 17 controls, exports described default supply power voltage to load with the battery 51 of control some.
Described switch module 30 comprises a master switch 31, some control switchs 33 and some serial connection switches 35.Described master switch 31 is arranged between output 70 and the battery pack 50, is connected to output 70 realization power supplies in order to control described battery pack 50.Described control switch 33 is one group the positive pole that is arranged at each battery 51 respectively and the opposite end of negative pole in twos, is connected to master switch 31 in order to the battery 51 with correspondence, exports electric energy stored to be connected to output 70 by master switch 31.Negative pole, the other end that one end of described each serial connection switch 35 is connected to a battery 51 is connected to the positive pole of another battery 51, in order to described several batteries 51 are connected successively.In embodiment of the present invention, described master switch 31, control switch 33 and serial connection switch 35 are field effect transistor, and be connected to the driver module 17 of described controller 10 by grid, with conducting or disconnection under the control of controller 10, realization is connected to output 70 power supplies with a certain battery 51, is connected to output 70 power supplies after perhaps certain several battery 51 being in series together.
Described some batteries 51 are identical, all can be a dry cell, also can be a storage battery.In embodiment of the present invention, the voltage of described each battery 51 equates with the default supply power voltage value of supply unit 100, can power by single battery 51.
In embodiment of the present invention, described control module 15 is a CPLD (Complex Programmable Logic Device, CPLD) or one the simulation integrated component, its programming by inside realizes with the described battery that is in series 51 number consecutivelies being first battery, second battery, the 3rd battery, the 4th battery ... and the control switch 33 of battery 51 opposite ends of corresponding described numbering and the serial connection switch 35 between two batteries 51 also are numbered, so that control the switch of driver module 17 conducting correspondences accurately, realize by 51 power supplies of default battery.In present embodiment, because the voltage of an independent battery 51 can reach the supply power voltage that described supply unit 100 is preset, described control module 15 will be controlled a battery 51 and power separately; When these battery 51 electric weight are crossed low and are caused the voltage of its output to be lower than default supply power voltage, control module 15 will be controlled another battery 51 and power separately, switch and so forth, the voltage that can export when all batteries 51 are powered separately all is lower than default supply power voltage.Then, this control module 15 is more successively with 51 1 groups of series-feds of two batteries, and the voltage of exporting until per two batteries 51 series connection backs also is lower than default supply power voltage.At last, this control module 15 is again with three, four and 51 1 groups of series-feds of more battery, voltage until back output that all batteries 51 are connected successively still is lower than default supply power voltage, this control module 15 will disconnect described master switch 31 and stop this battery pack 50 and power this moment, can reuse this battery pack 50 after the charging.
In embodiment of the present invention, the time that the voltage that detects battery pack 50 output when described detection module 11 is lower than described default supply power voltage value is when surpassing default duration, illustrate that then the voltage of exporting after all batteries 51 are in series still is lower than default supply power voltage, described control module 15 will trigger described driver module 17 and disconnect master switch 31, to stop described battery pack 50 power supplies.
The operation principle of this supply unit 100 is as follows: described control module 15 triggers the control switch 33 of described driver module 17 conducting master switchs 31 and one of them battery 51 opposite ends, to power by an independent battery 51.In the power supply process, described detection module 11 detects the voltage of battery pack 50 outputs, and whether the voltage of relatively exporting by comparison module 13 is lower than default supply power voltage, if be lower than default supply power voltage, then control module 15 triggers the control switch 33 of battery 51 opposite ends of the aforementioned power supply of described driver module 17 disconnections, the control switch 33 of another battery 51 opposite ends of conducting, to power by another battery 51, so the voltage of circulation after each battery 51 independent power supply all is lower than default supply power voltage.Then, power supply together after described control module 15 triggers described driver module 17 again 51 1 groups on two or more batteries are in series still is lower than default supply power voltage until the be in series voltage of back output of all batteries 51.At last, control module 15 triggers described driver module 17 and disconnects described master switch 31, to stop the power supply of battery pack 50, can reuse this battery pack 50 after the charging.
Be appreciated that, described supply unit 100 comprises that also one is serially connected with the sampling resistor R between master switch 31 and the output 70, described detection module 11 is monitored the electric current of described battery pack 50 outputs by detecting the electric current of flowing through on the sampling resistor R, correspondence arranges a upper current limit in the comparison module 13, and when the electric current of described battery pack 50 outputs exceeds described default upper current limit, disconnect the power supply that described master switch 31 stops battery pack 50 by control module 15, the electric current that effectively prevents from exporting to load end is excessive and damage described load.
The battery pack 50 of supply unit 100 of the present invention is provided with a plurality of batteries 51, and when single battery 51 was exportable described predeterminated voltage, controller 10 was controlled each battery 51 successively and powered separately; And when described each battery 51 electric weight reduce so that all can't export described default supply power voltage, controller 10 will be controlled two or more of batteries 51 series-fed successively, the output voltage of two or more batteries 51 is superimposed to realize exporting described default supply power voltage, connects successively till the total voltage of back output still can't reach default supply power voltage until all batteries 51.At this moment, remaining electric weight was low when remaining electric weight all can't be exported above-mentioned supply power voltage than single battery 51 in described each battery 51 under general case, and obviously, the utilance of this supply unit 100 is higher, is conducive to reduce the frequency of charging.
In addition, those skilled in the art can do other variation in spirit of the present invention, and still, all variations of doing according to the present invention's spirit essence all should be included within the present invention's scope required for protection.
Claims (7)
1. supply unit, comprise battery pack and an output, described battery pack is in order to export a supply power voltage of presetting to load by output, it is characterized in that: described supply unit also comprises controller and switch module, described battery pack comprises several batteries, described several batteries are selected series connection and are selected to be connected to described output by the switch module, described controller is connected to described output and switch module, and detect the voltage of described battery pack output, described controller is controlled each battery described default supply power voltage of output separately at first successively, and when detecting described each battery separately the voltage of output all be lower than described default supply power voltage, this controller controls successively that two or more batteries is connected mutually so that the total voltage of these a plurality of series connected battery outputs reaches described default supply power voltage, still is lower than described default supply power voltage until connect the successively total voltage of back output of all batteries.
2. supply unit as claimed in claim 1, it is characterized in that: described controller is controlled the described default supply power voltage of the independent output of a battery, and when being lower than described predeterminated voltage, the voltage that detects this battery output switches to by the described default supply power voltage of the independent output of another battery, until all batteries when separately the voltage of output all is lower than described default supply power voltage, described controller control two or more batteries series connection formation group separately the voltage of output reach described default supply power voltage, connect successively till the total voltage of back output still is lower than described default supply power voltage until all batteries.
3. supply unit as claimed in claim 1, it is characterized in that: described controller comprises detection module, comparison module and the control module of series connection successively, described detection module is connected to the output of battery pack, in order to detect the voltage of battery pack output, described controller is stored described default supply power voltage by comparison module, and whether the voltage of relatively battery pack output is lower than described default supply power voltage, described control module is connected to the switch module, this controller is controlled described switch module by control module, with the powered battery of control some.
4. supply unit as claimed in claim 3, it is characterized in that: described switch module comprises some control switchs and the some serial connection switches that is connected to control module, described control switch is one group the opposite end that is connected to a battery in twos, in order to control this battery output electric energy, one end of described serial connection switch is connected to the negative pole of a battery, the positive pole that the other end is connected to another battery, in order to described several batteries are connected successively.
5. supply unit as claimed in claim 4, it is characterized in that: described switch module also comprises a master switch, described master switch is connected in the output of battery pack and is connected to described controller, stops the power supply of described battery pack to disconnect under the control of controller.
6. supply unit as claimed in claim 5 is characterized in that: described master switch, control switch and serial connection switch are field effect transistor.
7. supply unit as claimed in claim 3, it is characterized in that: device also comprises the sampling resistor that is serially connected with between battery pack and the output in the described power supply, described detection module is connected to the opposite end of sampling resistor, in order to detect the electric current of battery pack output, correspondence arranges a upper current limit in the described comparison module, and when the electric current of battery pack output was higher than described upper current limit, trigger control module control driver module disconnected described master switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110454560 CN103187744A (en) | 2011-12-30 | 2011-12-30 | Power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110454560 CN103187744A (en) | 2011-12-30 | 2011-12-30 | Power supply device |
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| Publication Number | Publication Date |
|---|---|
| CN103187744A true CN103187744A (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110454560 Pending CN103187744A (en) | 2011-12-30 | 2011-12-30 | Power supply device |
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| CN (1) | CN103187744A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137900A (en) * | 2015-08-28 | 2015-12-09 | 中国石油天然气集团公司 | Power supply apparatus and method |
| CN105356549A (en) * | 2015-10-28 | 2016-02-24 | 富尔盛科技（深圳）有限公司 | High-voltage lithium battery pack and portable electrical device comprising same |
| WO2018050026A1 (en) * | 2016-09-18 | 2018-03-22 | 苏州宝时得电动工具有限公司 | Charging method, charging device and charging system |
| CN108512263A (en) * | 2018-02-09 | 2018-09-07 | 刘铭新 | N+x accumulator groups |
| CN111130165A (en) * | 2018-10-31 | 2020-05-08 | 丰田自动车株式会社 | Power supply device |
| WO2022222156A1 (en) * | 2021-04-23 | 2022-10-27 | 深圳市大疆创新科技有限公司 | Battery power supply control method and apparatus, movable platform, and storage medium |
-
2011
- 2011-12-30 CN CN 201110454560 patent/CN103187744A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137900A (en) * | 2015-08-28 | 2015-12-09 | 中国石油天然气集团公司 | Power supply apparatus and method |
| CN105137900B (en) * | 2015-08-28 | 2018-06-01 | 中国石油天然气集团公司 | A kind of power supply apparatus and method |
| CN105356549A (en) * | 2015-10-28 | 2016-02-24 | 富尔盛科技（深圳）有限公司 | High-voltage lithium battery pack and portable electrical device comprising same |
| CN105356549B (en) * | 2015-10-28 | 2018-03-20 | 深圳市盈动力科技有限公司 | High pressure lithium battery pack and the portable electrical equipment for including the high pressure lithium battery pack |
| WO2018050026A1 (en) * | 2016-09-18 | 2018-03-22 | 苏州宝时得电动工具有限公司 | Charging method, charging device and charging system |
| US10971764B2 (en) | 2016-09-18 | 2021-04-06 | Positec Power Tools (Suzhou) Co., Ltd. | Charging method, charging device, and charging system |
| CN108512263A (en) * | 2018-02-09 | 2018-09-07 | 刘铭新 | N+x accumulator groups |
| CN111130165A (en) * | 2018-10-31 | 2020-05-08 | 丰田自动车株式会社 | Power supply device |
| WO2022222156A1 (en) * | 2021-04-23 | 2022-10-27 | 深圳市大疆创新科技有限公司 | Battery power supply control method and apparatus, movable platform, and storage medium |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130703 |