CN204721014U - A kind of lithium ion battery multipurpose circuit - Google Patents
A kind of lithium ion battery multipurpose circuit Download PDFInfo
- Publication number
- CN204721014U CN204721014U CN201520324430.9U CN201520324430U CN204721014U CN 204721014 U CN204721014 U CN 204721014U CN 201520324430 U CN201520324430 U CN 201520324430U CN 204721014 U CN204721014 U CN 204721014U
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- drive circuit
- circuit
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- led
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of lithium ion battery multipurpose circuit, comprise charging circuit, Li-ion batteries piles, micro control unit, drive circuit, USB delivery outlet and LED, charging circuit electrical connection Li-ion batteries piles, Li-ion batteries piles connects micro control unit, micro control unit connects charging circuit, Li-ion batteries piles connects drive circuit, micro control unit connects drive circuit, drive circuit is electrically connected USB delivery outlet and LED respectively, the utility model is reasonable in design, easy to use, circuit stability, functional diversities, line regulation is little and system works stable, there is good application prospect.
Description
Technical field
The utility model is specifically related to a kind of lithium ion battery multipurpose circuit.
Background technology
Lithium battery has that volume is little, quality is light, the life-span is long, energy density advantages of higher, and along with the develop rapidly of lithium ion battery technology, creating many take lithium ion as the mini-plant of energy storage and power supply.Current application has LED flashlight to throw light on and portable power source especially widely.And current most emergency light is still main energy storage and power supply unit with lead-acid battery, because lead-acid battery can cause more serious environmental pollution, using lithium ion battery as the development & application of energy storage and power supply will be following development trend.
Utility model content
The purpose of this utility model is for solving above-mentioned deficiency, provides a kind of lithium ion battery multipurpose circuit.
The purpose of this utility model is achieved through the following technical solutions:
A kind of lithium ion battery multipurpose circuit, comprise charging circuit, Li-ion batteries piles, micro control unit, drive circuit, USB delivery outlet and LED, charging circuit electrical connection Li-ion batteries piles, Li-ion batteries piles connects micro control unit, micro control unit connects charging circuit, Li-ion batteries piles connects drive circuit, and micro control unit connects drive circuit, and drive circuit is electrically connected USB delivery outlet and LED respectively.
The utility model also has some technical characteristics like this:
Drive circuit comprises LED drive circuit and portable power source drive circuit, and LED drive circuit is electrically connected Li-ion batteries piles and USB delivery outlet respectively, and portable power source drive circuit is electrically connected micro control unit and LED respectively.
LED drive circuit adopts XL6003 switching boost type DC-DC constant-current LED conversion chip.
Portable power source drive circuit adopts SX2013 synchronous rectification step-down chip.
The utility model has effect useful as follows:
The utility model is reasonable in design, easy to use, and circuit stability, functional diversities, line regulation are little and system works stable, have good application prospect.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is charging circuit of the present utility model;
Fig. 3 is LED drive circuit of the present utility model;
Fig. 4 is portable power source drive circuit of the present utility model;
Fig. 5 is control circuit of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, a kind of lithium ion battery multipurpose circuit, comprise charging circuit 1, Li-ion batteries piles 2, micro control unit 3, drive circuit 6, USB delivery outlet 7 and LED 8, charging circuit 1 is electrically connected Li-ion batteries piles 2, Li-ion batteries piles 2 connects micro control unit 3, micro control unit 3 connects charging circuit 1, Li-ion batteries piles 2 connects drive circuit 6, micro control unit 3 connects drive circuit 6, drive circuit 6 is electrically connected USB delivery outlet 7 and LED 8 respectively, drive circuit comprises LED drive circuit 4 and portable power source drive circuit 5, LED drive circuit 4 is electrically connected Li-ion batteries piles 2 and USB delivery outlet 7 respectively, portable power source drive circuit 5 is electrically connected micro control unit 3 and LED 8 respectively, LED drive circuit adopts XL6003 switching boost type DC-DC constant-current LED conversion chip, portable power source drive circuit adopts SX2013 synchronous rectification step-down chip.
LED drive circuit: circuit forms a Buck-Boost constant current driver circuit for LED primarily of XL6003, this circuit single-chip microcomputer controls, and when the electrical voltage point gathered exceedes limit value, single-chip microcomputer output signal turns off LED drive circuit.The output current size of LED drive circuit is carried out PWM by single-chip microcomputer and is controlled, when PWM duty ratio is 100% output, export maximum current, when change in duty cycle, booster circuit output current reduces, when PWM output is 0, it is 0 electric current that booster circuit exports, thus closes output current completely.When the frequency of PWM is lower, just produce flicker effect.
Portable power source drive circuit: what portable power source drive circuit adopted is DC-DC conversion circuit, master chip adopts synchronous rectification step-down chip SX2013, and peak efficiency can reach 93%, can produce the driving force of 3A.USB charge port adopts this lithium ion battery power supply in support, and the voltage stabilizing that it is 5V/2A that master chip can realize the voltage transformation at Li-ion batteries piles two ends exports, can by USB port to PAD or mobile phone charging.Portable power source circuit devises key switch equally in the front end of drive circuit, and when only pressing, drive circuit could work.In this condition, single-chip microcomputer works equally, the capability value of moment display battery.
Control circuit: operating voltage is 2.7V ~ 5.5V.Its configuration comprises the 8 bit timing devices that has independent pre-divider, counter and two PWM passages, 4 10, tunnel ADC low power idle mode, noise suppressed pattern, battery saving mode.
Claims (4)
1. a lithium ion battery multipurpose circuit, comprise charging circuit, Li-ion batteries piles, micro control unit, drive circuit, USB delivery outlet and LED, it is characterized in that: charging circuit electrical connection Li-ion batteries piles, Li-ion batteries piles connects micro control unit, micro control unit connects charging circuit, Li-ion batteries piles connects drive circuit, and micro control unit connects drive circuit, and drive circuit is electrically connected USB delivery outlet and LED respectively.
2. a kind of lithium ion battery multipurpose circuit as claimed in claim 1, it is characterized in that: described drive circuit comprises LED drive circuit and portable power source drive circuit, LED drive circuit is electrically connected Li-ion batteries piles and USB delivery outlet respectively, and portable power source drive circuit is electrically connected micro control unit and LED respectively.
3. a kind of lithium ion battery multipurpose circuit as claimed in claim 2, is characterized in that: described LED drive circuit adopts XL6003 switching boost type DC-DC constant-current LED conversion chip.
4. a kind of lithium ion battery multipurpose circuit as claimed in claim 2, is characterized in that: described portable power source drive circuit adopts SX2013 synchronous rectification step-down chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520324430.9U CN204721014U (en) | 2015-05-19 | 2015-05-19 | A kind of lithium ion battery multipurpose circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520324430.9U CN204721014U (en) | 2015-05-19 | 2015-05-19 | A kind of lithium ion battery multipurpose circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204721014U true CN204721014U (en) | 2015-10-21 |
Family
ID=54319980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520324430.9U Expired - Fee Related CN204721014U (en) | 2015-05-19 | 2015-05-19 | A kind of lithium ion battery multipurpose circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204721014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375579A (en) * | 2015-12-09 | 2016-03-02 | 百色学院 | Bidirectional DC (Direct Current)-DC (Direct Current) converter for battery energy storage device |
| CN108040395A (en) * | 2017-12-12 | 2018-05-15 | 黄焕珠 | A kind of direct-current LED headlamp of Width funtion high brightness |
-
2015
- 2015-05-19 CN CN201520324430.9U patent/CN204721014U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375579A (en) * | 2015-12-09 | 2016-03-02 | 百色学院 | Bidirectional DC (Direct Current)-DC (Direct Current) converter for battery energy storage device |
| CN108040395A (en) * | 2017-12-12 | 2018-05-15 | 黄焕珠 | A kind of direct-current LED headlamp of Width funtion high brightness |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160519 |