CN201805265U - Low-cost automatic charging circuit for single lithium battery - Google Patents
Low-cost automatic charging circuit for single lithium battery Download PDFInfo
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- CN201805265U CN201805265U CN2010205038816U CN201020503881U CN201805265U CN 201805265 U CN201805265 U CN 201805265U CN 2010205038816 U CN2010205038816 U CN 2010205038816U CN 201020503881 U CN201020503881 U CN 201020503881U CN 201805265 U CN201805265 U CN 201805265U
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Abstract
The utility model relates to a low-cost automatic charging circuit for a single lithium battery, which can be used for automatic management of a battery charger, the capacitor constant-current charging is adopted, the monitoring and the management adopt two groups of TL431 thresholds for comparison so as to constitute voltage monitoring, a high-voltage threshold and a low-voltage threshold are set, the threshold monitoring adopts interlocking conversion, when in charge, the high threshold is used for main control, and a low threshold circuit is closed, when the voltage of the battery is higher than the voltage set by the high threshold, a optocoupler cuts off the alternating current power supply of a silicon controlled rectifier, and the charger stops working; and then the low-cost automatic charging circuit exits from a high threshold circuit in an electric vector manner, the low threshold circuit is simultaneously opened, when the voltage of the battery is lower than the voltage set by the low threshold, the optocoupler is driven, the silicon controlled rectifier can be conducted, the alternating current power supply is opened, the high threshold circuit takes over the monitoring and the management, the alternating current power supply is self-locked for maintaining the power supply, general elements are adopted, the power consumption is less than 4 milliwatts, and the low-cost automatic charging circuit for the single lithium battery can realize management of power consumption of the charger without standby. The low-cost automatic charging circuit for the single lithium battery has a wide range of applications and energy-saving and environment-friendly significance.
Description
Affiliated technical field
The utility model relates to a kind of low-cost single-unit lithium electricity charging road automatically, can be in the automatic management with battery charger.
Background technology
At present, be used for battery and fill the device electricity, general is opened control at the dc low-voltage end, after charging is finished, still has power consumption, and the low-carbon environment-friendly trend requires to provide a kind of low-power consumption, cheaply the zero automatic Charge Management of stand-by power consumption battery.
Summary of the invention
The low-cost single-unit lithium electricity of the utility model is the charging road automatically, can be used for the battery control of charging automatically.
The technical scheme that its technical problem that solves the utility model adopts is: adopt the electric capacity constant current charge, monitoring management adopts two groups of TL431 thresholdings relatively to constitute voltage monitoring, the height voltage threshold is set, thresholding monitoring interlocking conversion, high threshold master control and close low threshold circuit during charging, when cell voltage is provided with voltage greater than high threshold, light lotus root turn off thyristor Alternating Current Power Supply, charger quits work; The high threshold circuit vows that electricity withdraws from, and the low threshold circuit is opened simultaneously, when cell voltage is lower than low threshold voltage is set, and drives the light lotus root, the controllable silicon conducting, and Alternating Current Power Supply is opened, and the high threshold circuit is taken over monitoring management, and power supply is kept in the Alternating Current Power Supply self-locking; The power supply of TL431 high threshold comparator is to be provided by charger, and 3.0 volts of power supplies are obtained with the 3.0V voltage-stabiliser tube that is connected over the ground by the R1 current-limiting resistance; The TL431 positive pole connects 3.0 volts of power supplies by 1.k Ω current-limiting resistance; Drive and Control Circuit is 3.0 volts of feeder ears through 1k Ω current-limiting resistance, connect LED and grounding through resistance in the light lotus root through triode C-E, and the B of triode connects the TL431 positive pole through 10k Ω resistance; The anodal diode-isolated that has forward to be connected with the rechargeable battery positive pole of charge power supply, the sampling of threshold compataror is connected battery-end, the power switch of low threshold comparator is that the 1015PNP triode constitutes, it is anodal through 100k resistance connection PNP transistor base to isolate two pipes, the anode end connects PNP triode emitter-base bandgap grading through 4,148 two pipe forwards, collector electrode connects the power supply of TL431 low threshold comparator, forms the automatic conversion of charging and standby supervisory circuit.Adopt universal component, power consumption is less than 4 milliwatts, and low-cost single-unit lithium electricity charging road is automatically realized the management of charger no standby power.
The beneficial effects of the utility model are, battery charge user is huge, and low-cost single-unit lithium electricity is popularizing energy-saving and cost-reducing huge equally of charging road automatically.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is further specified.
Fig. 1. be that the low-cost single-unit lithium of the utility model electricity fills circuit diagram automatically.
Specific embodiments
.TL431 high threshold comparator among the figure, 1815 triode conductings when battery is lower than high threshold value of setting, the light lotus root drives the controllable silicon conducting, power supply is kept in the Alternating Current Power Supply self-locking, charger work, 1815 triodes ended when battery was higher than the high threshold value of setting, light lotus root turn off thyristor Alternating Current Power Supply, and charger quits work.
TL431 low threshold comparator by the control of 1015 triode switches, the 1815NPN triode ended when battery was higher than the low threshold value of setting, 1815NPN triode conducting when battery is lower than the low threshold value of setting, drive the light lotus root by 4148 diodes and drive the controllable silicon conducting, Alternating Current Power Supply is opened, the high threshold circuit is taken over monitoring management, and power supply is kept in the Alternating Current Power Supply self-locking, and charger enters the device charged state.
The power supply of TL431 high threshold comparator is to be provided by charger, and 3.0 volts of power supplies are obtained with the 3.0V voltage-stabiliser tube that is connected over the ground by the R1 current-limiting resistance; The TL431 positive pole connects 3.0 volts of power supplies by 1.k Ω current-limiting resistance; Drive and Control Circuit is 3.0 volts of feeder ears through 1k Ω current-limiting resistance, connect LED and grounding through resistance in the light lotus root through triode C-E, and the B of triode connects the TL431 positive pole through 10k Ω resistance.
Constant current electric capacity is selected, and can be decided by instructions for use, and online application is selected littler, and off-line is used choosing greatly, and the charging interval is short.
The anodal diode-isolated that has forward to be connected with the rechargeable battery positive pole of charge power supply, the sampling of threshold compataror is connected battery-end, the power switch of low threshold comparator is that the 1015PNP triode constitutes, it is anodal through 100k resistance connection PNP transistor base to isolate two pipes, the anode end connects PNP triode emitter-base bandgap grading through 4,148 two pipe forwards, collector electrode connects the power supply of TL431 low threshold comparator, forms the automatic conversion of charging and standby supervisory circuit.
Low-cost single-unit lithium electricity is the charging road automatically, and purposes and energy-conserving and environment-protective meaning are widely arranged.
Claims (1)
1. low-cost single-unit lithium electricity is the charging road automatically, it is characterized in that: adopt the electric capacity constant current charge, monitoring management adopts two groups of TL431 thresholdings relatively to constitute voltage monitoring, the height voltage threshold is set, thresholding monitoring interlocking conversion, high threshold master control and close low threshold circuit during charging is when cell voltage is provided with voltage greater than high threshold, light lotus root turn off thyristor Alternating Current Power Supply, charger quits work; The high threshold circuit vows that electricity withdraws from, and the low threshold circuit is opened simultaneously, when cell voltage is lower than low threshold voltage is set, and drives the light lotus root, the controllable silicon conducting, and Alternating Current Power Supply is opened, and the high threshold circuit is taken over monitoring management, and power supply is kept in the Alternating Current Power Supply self-locking; The power supply of TL431 high threshold comparator is to be provided by charger, and 3.0 volts of power supplies are obtained with the 3.0V voltage-stabiliser tube that is connected over the ground by the R1 current-limiting resistance; The TL431 positive pole connects 3.0 volts of power supplies by 1.k Ω current-limiting resistance; Drive and Control Circuit is 3.0 volts of feeder ears through 1k Ω current-limiting resistance, connect LED and grounding through resistance in the light lotus root through triode C-E, and the B of triode connects the TL431 positive pole through 10k Ω resistance; The anodal diode-isolated that has forward to be connected with the rechargeable battery positive pole of charge power supply, the sampling of threshold compataror is connected battery-end, the power switch of low threshold comparator is that the 1015PNP triode constitutes, it is anodal through 100k resistance connection PNP transistor base to isolate two pipes, the anode end connects PNP triode emitter-base bandgap grading through 4,148 two pipe forwards, collector electrode connects the power supply of TL431 low threshold comparator, forms the automatic conversion of charging and standby supervisory circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205038816U CN201805265U (en) | 2010-08-25 | 2010-08-25 | Low-cost automatic charging circuit for single lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205038816U CN201805265U (en) | 2010-08-25 | 2010-08-25 | Low-cost automatic charging circuit for single lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201805265U true CN201805265U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205038816U Expired - Lifetime CN201805265U (en) | 2010-08-25 | 2010-08-25 | Low-cost automatic charging circuit for single lithium battery |
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| Country | Link |
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| CN (1) | CN201805265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826998A (en) * | 2016-05-24 | 2016-08-03 | 湖南汽车工程职业学院 | Starter battery charging protection device |
-
2010
- 2010-08-25 CN CN2010205038816U patent/CN201805265U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826998A (en) * | 2016-05-24 | 2016-08-03 | 湖南汽车工程职业学院 | Starter battery charging protection device |
| CN105826998B (en) * | 2016-05-24 | 2018-05-25 | 湖南汽车工程职业学院 | Startup protection apparatus for charging of battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110420 Effective date of abandoning: 20110816 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |