CN102332735B - Program controlled charging circuit for nickel-hydrogen battery - Google Patents
Program controlled charging circuit for nickel-hydrogen battery Download PDFInfo
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- CN102332735B CN102332735B CN 201110170008 CN201110170008A CN102332735B CN 102332735 B CN102332735 B CN 102332735B CN 201110170008 CN201110170008 CN 201110170008 CN 201110170008 A CN201110170008 A CN 201110170008A CN 102332735 B CN102332735 B CN 102332735B
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- Prior art keywords
- battery
- triode
- current
- charged
- mode control
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- 229910052739 hydrogen Inorganic materials 0.000 title abstract 2
- 239000001257 hydrogen Substances 0.000 title abstract 2
- 239000004065 semiconductor Substances 0.000 claims abstract description 25
- 230000000087 stabilizing effect Effects 0.000 claims description 21
- 229910018095 Ni-MH Inorganic materials 0.000 claims description 9
- 229910018477 Ni—MH Inorganic materials 0.000 claims description 9
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a program controlled charging circuit for a nickel-hydrogen battery. The program controlled charging circuit comprises a charging power supply, a battery to be charged, a charging switch, a charging mode control module and a one-chip microcomputer; the charging mode control module charges the battery to be charged through a diode, the charging switch comprises a switching triode, the base electrode of which is connected with the one-chip microcomputer through a first divider resistor, the charging mode control module comprises a voltage regulator chip which is connected with a metal oxide semiconductor (MOS) tube, a first current-limiting resistor and a mode control triode, the base electrode of the mode control triode is connected with the one-chip microcomputer, a third current-limiting resistor is arranged between the base electrode and the emitter electrode of the mode control triode, the first current-limiting resistor and a second current-limiting resistor are both connected with the anode of the diode, and a shunt resistor is provided between the G electrode of the MOS tube and the anode of the diode. The advantages of the invention are as follows when battery voltage is not insufficient, the battery can be charged through the charging power supply, and a proper current can be selected based on the electric quantity of the battery to charge the battery, which enables the battery not to be overcharged.
Description
Technical field
The present invention relates to a kind of program-controlled charging circuit for Ni-MH battery.
Background technology
Ni-MH battery is to have hydrogen ion and metallic nickel to synthesize, and the electric weight deposit is more than nickel-cadmium cell, and is lighter than nickel-cadmium cell, and useful life is also longer, and environmentally safe.The shortcoming of Ni-MH battery is that the cost ratio nickel-cadmium cell is expensive a lot of, and the Performance Ratio lithium battery is poor.What Ni-MH battery was used in productive life also comes the moon extensively.As a kind of rechargeable battery, often be applied in some independently in smart machine.Therefore the design comparison of charging circuit is crucial.
Summary of the invention
The object of the present invention is to provide and a kind ofly by charge power supply, battery is charged when cell voltage is not enough, and can select different electric currents that battery is charged according to battery electric quantity, guarantee the program-controlled charging circuit that is used for Ni-MH battery that battery is not overcharged.
Be used for the program-controlled charging circuit of Ni-MH battery, comprise charge power supply, battery to be charged, the charge switch that is connected with charge power supply, the charge mode control module of connection charge switch and battery to be charged, and the single-chip microcomputer that judges the virtual voltage of battery to be charged;
Described charge switch and charge mode control module are controlled by described single-chip microcomputer, and described charge mode control module is charged to battery to be charged by diode;
Described charge switch comprises the metal-oxide-semiconductor that is connected with charge power supply and the switch triode that is connected with the G utmost point of metal-oxide-semiconductor, the collector electrode of described switch triode is connected with the described metal-oxide-semiconductor G utmost point, the base stage of described switch triode is connected with the first pulse output end of single-chip microcomputer by the first divider resistance, during described single-chip microcomputer output high level, described switch triode conducting;
Described charge mode control module comprises the voltage stabilizing chip that is connected with the metal-oxide-semiconductor G utmost point, the input of described voltage stabilizing chip is connected with the described metal-oxide-semiconductor G utmost point, the first output of described voltage stabilizing chip is connected with the first current-limiting resistance, be provided with the second current-limiting resistance between the second output of described voltage stabilizing chip and described the first current-limiting resistance, described voltage stabilizing chip the second output is connected with the collector electrode that pattern is controlled triode;
Described pattern is controlled the grounded emitter of triode, the base stage that described pattern is controlled triode is connected with the second pulse output end of described single-chip microcomputer by the second divider resistance, is provided with the 3rd current-limiting resistance between the base stage of described pattern control triode and emitter;
The output of described the first current-limiting resistance be connected the output of current-limiting resistance and all be connected with the positive pole of described diode, also be provided with shunt resistance between the described metal-oxide-semiconductor G utmost point and diode cathode.
Technical conceive of the present invention is: when single-chip microcomputer detects the brownout of battery to be charged, single-chip microcomputer sends high level to the base stage of switch triode, thereby the switch triode conducting drags down the level of the metal-oxide-semiconductor G utmost point, the metal-oxide-semiconductor conducting, this moment, the power supply one tunnel of charge power supply was delivered to diode through shunt resistance, and another road enters the voltage stabilizing chip.
Enter one road electric current of voltage stabilizing chip, when the base stage of pattern control triode is low level, pattern is controlled the triode cut-off, this moment electric current from the first output, flow into diode through the first current-limiting resistance, diode current flow, treat rechargeable battery and carry out large current charge.
When the base stage that controls triode when pattern is high level, pattern is controlled the triode conducting, the road electric current that enters the voltage stabilizing chip this moment is controlled triode to the ground earial drainage through pattern, only has this moment road electric current through shunt resistance to charge through diode pair battery to be charged.And the resistance of shunt resistance is very large, treats the rechargeable battery charging with little electric current this moment.
When the voltage that battery to be charged detected when single-chip microcomputer has arrived threshold voltage, send low level to the base stage of switch triode, switch triode cut-off this moment, the metal-oxide-semiconductor cut-off stops treating each other the rechargeable battery charging.
The present invention has when cell voltage is not enough and by charge power supply, battery is charged, and can select different electric currents that battery is charged according to battery electric quantity, guarantees the advantage that battery is not overcharged.
Description of drawings
Fig. 1 is circuit diagram of the present invention.
Embodiment
With reference to accompanying drawing, further illustrate the present invention:
The program-controlled charging circuit that is used for Ni-MH battery, comprise charge power supply POWER, battery J1 to be charged, the charge switch that is connected with charge power supply POWER, the charge mode control module that connects charge switch and battery to be charged, and the single-chip microcomputer that judges the virtual voltage of battery to be charged;
Described charge switch and charge mode control module are controlled by described single-chip microcomputer, and described charge mode control module is charged to battery to be charged by diode;
Described charge switch comprises the metal-oxide-semiconductor Q1 that is connected with charge power supply and the switch triode Q2 that is connected with the G utmost point of metal-oxide-semiconductor, the collector electrode of described switch triode Q2 is connected with the described metal-oxide-semiconductor G utmost point, the base stage of described switch triode Q2 is connected with the first pulse output end of single-chip microcomputer by the first divider resistance R2, during described single-chip microcomputer output high level, described switch triode Q2 conducting;
Described charge mode control module comprises the voltage stabilizing chip LM317 that is connected with the metal-oxide-semiconductor G utmost point, the input Vin of described voltage stabilizing chip LM317 is connected with the described metal-oxide-semiconductor G utmost point, the first output end vo ut of described voltage stabilizing chip LM317 is connected with the first current-limiting resistance R5, be provided with the second current-limiting resistance R8 between the second output terminals A DJ of described voltage stabilizing chip LM317 and described the first current-limiting resistance R5, described voltage stabilizing chip LM317 the second output terminals A DJ is connected with the collector electrode that pattern is controlled triode Q3;
Described pattern is controlled the grounded emitter of triode Q3, the base stage that described pattern is controlled triode Q3 is connected with the second pulse output end of described single-chip microcomputer by the second divider resistance R4, is provided with the 3rd current-limiting resistance R7 between the base stage of described pattern control triode Q3 and emitter;
The output of described the first current-limiting resistance R5 be connected the output of current-limiting resistance R8 and all be connected with the positive pole of described diode D1, also be provided with shunt resistance R1 between the described metal-oxide-semiconductor G utmost point and diode D1 positive pole.
Technical conceive of the present invention is: when single-chip microcomputer detects the brownout of battery to be charged, single-chip microcomputer sends high level to the base stage of switch triode, thereby the switch triode conducting drags down the level of the metal-oxide-semiconductor G utmost point, the metal-oxide-semiconductor conducting, this moment, the power supply one tunnel of charge power supply was delivered to diode through shunt resistance, and another road enters the voltage stabilizing chip.
Enter one road electric current of voltage stabilizing chip, when the base stage of pattern control triode is low level, pattern is controlled the triode cut-off, this moment electric current from the first output, flow into diode through the first current-limiting resistance, diode current flow, treat rechargeable battery and carry out large current charge.
When the base stage that controls triode when pattern is high level, pattern is controlled the triode conducting, the road electric current that enters the voltage stabilizing chip this moment is controlled triode to the ground earial drainage through pattern, only has this moment road electric current through shunt resistance to charge through diode pair battery to be charged.And the resistance of shunt resistance is very large, treats the rechargeable battery charging with little electric current this moment.
When the voltage that battery to be charged detected when single-chip microcomputer has arrived threshold voltage, send low level to the base stage of switch triode, switch triode cut-off this moment, the metal-oxide-semiconductor cut-off stops treating each other the rechargeable battery charging.
The present invention has when cell voltage is not enough and by charge power supply, battery is charged, and can select different electric currents that battery is charged according to battery electric quantity, guarantees the advantage that battery is not overcharged.
The described content of this specification embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reaches conceives the equivalent technologies means that can expect according to the present invention in those skilled in the art.
Claims (1)
1. be used for the program-controlled charging circuit of Ni-MH battery, it is characterized in that: comprise charge power supply, battery to be charged, the charge switch that is connected with charge power supply, the charge mode control module that connects charge switch and battery to be charged, and the single-chip microcomputer that judges the virtual voltage of battery to be charged;
Described charge switch and charge mode control module are controlled by described single-chip microcomputer, and described charge mode control module is charged to battery to be charged by diode;
Described charge switch comprises the metal-oxide-semiconductor that is connected with charge power supply and the switch triode that is connected with the G utmost point of metal-oxide-semiconductor, the collector electrode of described switch triode is connected with the described metal-oxide-semiconductor G utmost point, the base stage of described switch triode is connected with the first pulse output end of single-chip microcomputer by the first divider resistance, during described single-chip microcomputer output high level, described switch triode conducting;
Described charge mode control module comprises the voltage stabilizing chip that is connected with the metal-oxide-semiconductor G utmost point, the input of described voltage stabilizing chip is connected with the described metal-oxide-semiconductor G utmost point, the first output of described voltage stabilizing chip is connected with the first current-limiting resistance, be provided with the second current-limiting resistance between the second output of described voltage stabilizing chip and described the first current-limiting resistance, described voltage stabilizing chip the second output is connected with the collector electrode that pattern is controlled triode;
Described pattern is controlled the grounded emitter of triode, the base stage that described pattern is controlled triode is connected with the second pulse output end of described single-chip microcomputer by the second divider resistance, is provided with the 3rd current-limiting resistance between the base stage of described pattern control triode and emitter;
The output of described the first current-limiting resistance be connected the output of current-limiting resistance and all be connected with the positive pole of described diode, also be provided with shunt resistance between the described metal-oxide-semiconductor G utmost point and diode cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110170008 CN102332735B (en) | 2011-06-22 | 2011-06-22 | Program controlled charging circuit for nickel-hydrogen battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110170008 CN102332735B (en) | 2011-06-22 | 2011-06-22 | Program controlled charging circuit for nickel-hydrogen battery |
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| Publication Number | Publication Date |
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| CN102332735A CN102332735A (en) | 2012-01-25 |
| CN102332735B true CN102332735B (en) | 2013-06-05 |
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| CN 201110170008 Active CN102332735B (en) | 2011-06-22 | 2011-06-22 | Program controlled charging circuit for nickel-hydrogen battery |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617648B (en) * | 2015-02-14 | 2016-11-23 | 苏黎 | A kind of charging control circuit and charging device |
| CN106532789A (en) * | 2015-09-11 | 2017-03-22 | 上海哲宏机电有限公司 | Chargeable battery |
| CN109049020B (en) * | 2018-10-22 | 2023-09-05 | 浙江亚尚智能科技有限公司 | Control circuit of electric shaver |
| CN109462269B (en) * | 2018-12-18 | 2023-12-08 | 镇江中煤电子有限公司 | Pulse charging device for mining nickel-hydrogen battery and control method |
| CN110429679B (en) * | 2019-08-09 | 2024-09-27 | 上海移为通信技术股份有限公司 | Control method of small-power charging equipment |
| CN111555397B (en) * | 2020-05-21 | 2024-06-04 | 广东博力威科技股份有限公司 | Control circuit for turning off discharge output during charging of lithium battery |
| CN114914959A (en) * | 2021-02-09 | 2022-08-16 | 博泰车联网科技(上海)股份有限公司 | Nickel-hydrogen battery charging circuit and charging method |
| CN113206524B (en) * | 2021-04-30 | 2022-11-29 | 石家庄宇飞电子有限公司 | Ia-level intrinsic safety battery charging voltage feedback circuit |
| CN113991776A (en) * | 2021-10-26 | 2022-01-28 | 守卫者(杭州)科技有限公司 | Low-voltage battery module charging protection circuit and working method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110522A (en) * | 2007-08-20 | 2008-01-23 | 中兴通讯股份有限公司 | Charging device and method for nickel-hydrogen battery and terminal using the device and method |
| CN201167240Y (en) * | 2007-11-30 | 2008-12-17 | 中兴通讯股份有限公司 | A charging device for nickel metal hydride batteries |
| CN202111497U (en) * | 2011-06-22 | 2012-01-11 | 杭州炬华科技股份有限公司 | Program-controlled charging circuit for Ni-MH batteries |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4805223B2 (en) * | 2007-07-27 | 2011-11-02 | レノボ・シンガポール・プライベート・リミテッド | Charging system and charging method |
| EP3522330B1 (en) * | 2008-09-08 | 2021-06-30 | Techtronic Power Tools Technology Limited | Battery charger |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110522A (en) * | 2007-08-20 | 2008-01-23 | 中兴通讯股份有限公司 | Charging device and method for nickel-hydrogen battery and terminal using the device and method |
| CN201167240Y (en) * | 2007-11-30 | 2008-12-17 | 中兴通讯股份有限公司 | A charging device for nickel metal hydride batteries |
| CN202111497U (en) * | 2011-06-22 | 2012-01-11 | 杭州炬华科技股份有限公司 | Program-controlled charging circuit for Ni-MH batteries |
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| CN102332735A (en) | 2012-01-25 |
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Address after: 310030 No. 9 Longtan Road, front street, Yuhang District, Zhejiang, Hangzhou Patentee after: Hangzhou Sunrise Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province 310030 West Lake science and Technology Park West eight road No. 2 Yinjiang Software Park building C Patentee before: Hangzhou Sunrise Technology Co., Ltd. |