CN206323616U - A kind of LED control circuit of low battery boosting continuation of the journey constant current - Google Patents
A kind of LED control circuit of low battery boosting continuation of the journey constant current Download PDFInfo
- Publication number
- CN206323616U CN206323616U CN201720028028.5U CN201720028028U CN206323616U CN 206323616 U CN206323616 U CN 206323616U CN 201720028028 U CN201720028028 U CN 201720028028U CN 206323616 U CN206323616 U CN 206323616U
- Authority
- CN
- China
- Prior art keywords
- pin
- circuit
- led
- control chip
- connection
- 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.)
- Expired - Fee Related
Links
Landscapes
- Led Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model is related to a kind of LED control circuit of low battery boosting continuation of the journey constant current.Traditional car light is solved using three whose power supplieds, the problem of there is big volume, complex structural designs, low remaining capacity utilization rate.The LED control circuit of low battery boosting continuation of the journey constant current, including LED light source, including the power circuit being made up of two batteries, power supply power supply is boosted and current constant control voltage increase and current constant circuit, power circuit output end after connecting voltage increase and current constant circuit with LED light source by being connected.Advantage of the present utility model uses two batteries, maintained by voltage increase and current constant circuit within the scope of the driving current of LED light source maintains setting, keep electric current constant, reduce number of batteries, so as to reduce the volume of product, structure design is simple so that product smallerization, it is more attractive in appearance, it is easy to carry.And by single battery voltage consumption to less than 0.5, the utilization rate of battery is considerably increased, the energy has been saved.
Description
Technical field：
The utility model is related to a kind of LED control technology fields, more particularly to a kind of boosting continuation of the journey constant current of low battery LED
Control circuit.
Background technology：
Existing conventional LED is driven using three batteries, using three batteries shortcoming shortcoming it is obvious that
The volume of product can be caused excessive, complex structural designs are unfavorable for product miniaturization.And the positive drive voltage of white light LEDs
In 3.2-3.6V, traditional car light needs three batteries series-feds, and voltage reaches 4.5V, when use, battery voltage
Hell 3.2V will be unable to driven, and so average often economize on electricity cell voltage all remains more than 1V, from battery standard discharge off also
Some remaining capacity, this will cause that environmental protection can be unfavorable for wasting.
The content of the invention：
The utility model mainly solves traditional car light using three whose power supplieds, exist big volume, complex structural designs,
There is provided a kind of low battery boosting high using two whose power supplieds, small volume, utilization rate for the problem of remaining capacity utilization rate is low
The LED control circuit of continuation of the journey constant current.
The utility model solves the technical scheme that its technical problem used：A kind of low battery boosting continuation of the journey constant current
LED control circuit, including LED light source, including the power circuit being made up of two batteries, are boosted and constant current to power supply power supply
The voltage increase and current constant circuit of control, voltage increase and current constant circuit includes energy storage inductor L1, boost control chip U3, sustained diode 3, electricity
Hold C3, resistance R3, power circuit output end is connected respectively to boost control chip U3 4 pin and 6 pin, energy storage inductor L1 one end,
The energy storage inductor L1 other ends connect boost control chip U3 1 pin, the positive pole of sustained diode 3 respectively, sustained diode 3
Negative pole connects electric capacity C3 one end, the positive pole of LED light source, boost control chip U3 5 pin respectively, and the electric capacity C3 other ends are grounded,
The negative pole of LED light source connects boost control chip U3 3 pin, resistance R3 one end, resistance R3 other ends ground connection, boosting rectifier control respectively
The 2 pin ground connection of chip.The utility model uses two batteries to be powered for LED light source, and LED light source is maintained by voltage increase and current constant circuit
Driving current maintain setting within the scope of, and keep constant so that use two batteries just can be constant for LED light source
Power supply, reduces number of batteries, so as to reduce the volume of product, structure design is simple so that product smallerization, more beautiful
See, be easy to carry.And by single battery voltage consumption to less than 0.5, the utilization rate of battery is considerably increased, energy has been saved
Source.
As a kind of preferred scheme of such scheme, the boost control chip U3 uses M12206.
As a kind of preferred scheme of such scheme, it is also associated with being used for carry out too low to battery electric quantity on LED light source
The low battery alert circuit of prompting, low battery alert circuit includes detection chip U2, LED D1, and resistance R1, detection chip U2 is adopted
With M12807A22, detection chip U2 3 pin connection power circuit output end, detection chip U2 2 pin ground connection, detection chip U2
1 pin connection LED D1 negative pole, LED D2 positive pole connection resistance R1 one end, resistance R1 other ends connection LED light source
Positive pole.Detection chip U2 judges whether electricity is too low by detecting the power supply of LED light source, if battery electric quantity is too low, detection
Chip U2 control LEDs D2 is luminous to carry out indicating battery low battery.
As a kind of preferred scheme of such scheme, gone here and there between power circuit output end and voltage increase and current constant circuit on line
The switch element of duty cycle adjustment can be carried out by being associated with, switch element control end connection control circuit of duty ratio, Duty ratio control electricity
Road includes control chip U1, button SW1, and switch element includes metal-oxide-semiconductor Q1, and control chip U1 is using MCU6556 (customization IC), control
Coremaking piece U1 4 pin connection metal-oxide-semiconductor Q1 grid, the source electrode connection power circuit output end of metal-oxide-semiconductor, the drain electrode connection of metal-oxide-semiconductor
Energy storage inductor L1 one end, control chip U1 2 pin are connected with power circuit output end, the pin of control chip U1 chips 1,3 pin difference
Ground connection, control chip U1 5 pin connection button SW1 one end, button SW1 other ends ground connection.It is defeated by control chip in this programme
Go out to modulate Pulse Width Control metal-oxide-semiconductor Q1 opening and closing, so that the glittering frequency to control LED light source.Button SW1 is used to control whether out
Open LED light source flicker.
As a kind of preferred scheme of such scheme, the power circuit includes the battery of two-stage series connection, electric capacity C1, battery
Just extremely power circuit output end, GND ground connection, electric capacity C1 is attempted by battery.Two batteries pair are used in this programme
LED light source is driven, and reduces number of batteries, so as to reduce the volume of product, structure design is simple so that product is smaller
Type, it is more attractive in appearance, it is easy to carry.And by single battery voltage consumption to less than 0.5, considerably increase the utilization of battery
Rate, has saved the energy.Electric capacity C1 plays a part of filtering.
Advantage of the present utility model：Use two batteries to be powered for LED light source, LED light is maintained by voltage increase and current constant circuit
The driving current in source is maintained within the scope of setting, and keeps constant so that it just can be LED light source perseverance to use two batteries
Fixed power supply, reduces number of batteries, so as to reduce the volume of product, structure design is simple so that product smallerization, more
It is attractive in appearance, it is easy to carry.And by single battery voltage consumption to less than 0.5, the utilization rate of battery is considerably increased, energy has been saved
Source.
Brief description of the drawings
Fig. 1 is a kind of electrical block diagram of the present utility model.
1- control circuit of duty ratio 2- voltage increase and current constant circuit 3- low battery alert circuit 4- power circuits.
Embodiment：
Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is further described.
Embodiment：
A kind of LED control circuit of low battery of the present embodiment boosting continuation of the journey constant current, as shown in figure 1, including LED light source, by
Two batteries constitute power circuit 4, power supply power supply is boosted and current constant control voltage increase and current constant circuit 2.
The battery of power circuit including two-stage series connection, electric capacity C1, the just extremely power circuit output end, GND of battery
Ground connection, electric capacity C1 is attempted by battery.
Voltage increase and current constant circuit includes energy storage inductor L1, boost control chip U3, sustained diode 3, electric capacity C3, resistance R3.
Boost control chip U3 uses M12206.Power circuit output end is connected respectively to boost control chip U3 4 pin and 6 pin, storage
Energy inductance L1 one end, the energy storage inductor L1 other ends connect boost control chip U3 1 pin, the positive pole of sustained diode 3 respectively,
The negative pole of sustained diode 3 connects electric capacity C3 one end, the positive pole of LED light source, boost control chip U3 5 pin, electric capacity respectively
The C3 other ends are grounded, and the negative pole of LED light source connects boost control chip U3 3 pin, resistance R3 one end, the resistance R3 other ends respectively
Ground connection, the 2 pin ground connection of boost control chip.
Voltage increase and current constant circuit also includes electric capacity C3, electric capacity C3 one end connection negative pole of sustained diode 3, the electric capacity C3 other ends
Ground connection.
It is also associated with LED light source for the too low low battery alert circuit reminded of battery electric quantity, low battery
Alert circuit includes detection chip U2, LED D1, and resistance R1, detection chip U2 uses M12807A22, detection chip U2 3 pin
Connect power circuit output end, detection chip U2 2 pin ground connection, detection chip U2 1 pin connection LED D1 negative pole, LED
D2 positive pole connection resistance R1 one end, the resistance R1 other ends connect the positive pole of LED light source.
The switch of duty cycle adjustment can be carried out by being in series between power circuit output end and voltage increase and current constant circuit on line
Unit, switch element control end connection control circuit of duty ratio.Control circuit of duty ratio includes control chip U1, button SW1, opens
Closing unit includes metal-oxide-semiconductor Q1, and control chip U1 uses MCU6556（Customize IC）, control chip U1 4 pin connection metal-oxide-semiconductor Q1's
Grid, the source electrode connection power circuit output end of metal-oxide-semiconductor, drain electrode connection energy storage inductor L1 one end of metal-oxide-semiconductor, control chip U1's
2 pin are connected with power circuit output end, and the pin of control chip U1 chips 1,3 pin are grounded respectively, control chip U1 5 pin connection button
SW1 one end, button SW1 other ends ground connection.
Although more having used control circuit of duty ratio, voltage increase and current constant circuit, low battery alert circuit, power supply electricity herein
The terms such as road, but it is not precluded from the possibility using other terms.Using these terms just for the sake of more easily description and
Explain the essence of the present invention；Any additional limitation is construed as all to disagree with spirit of the present invention.
Claims (5)
1. a kind of LED control circuit of low battery boosting continuation of the journey constant current, including LED light source, it is characterised in that：Including by two economize on electricitys
The power circuit that pond is constituted, power supply power supply is boosted and current constant control voltage increase and current constant circuit, voltage increase and current constant circuit includes
Energy storage inductor L1, boost control chip U3, sustained diode 3, electric capacity C3, resistance R3, power circuit output end are connected respectively to
Boost control chip U3 4 pin and 6 pin, energy storage inductor L1 one end, the energy storage inductor L1 other ends connect boost control chip respectively
U3 1 pin, the positive pole of sustained diode 3, the negative pole of sustained diode 3 are connecting electric capacity C3 one end, LED light source just respectively
Pole, boost control chip U3 5 pin, electric capacity C3 other ends ground connection, the negative pole of LED light source connect boost control chip U3's respectively
3 pin, resistance R3 one end, resistance R3 other ends ground connection, the 2 pin ground connection of boost control chip.
2. the LED control circuit of a kind of low battery boosting continuation of the journey constant current according to claim 1, it is characterized in that the boosting
Control chip U3 uses M12206.
3. the LED control circuit of a kind of low battery boosting continuation of the journey constant current according to claim 1, it is characterized in that in LED light
It is also associated with source for the too low low battery alert circuit reminded of battery electric quantity, low battery alert circuit to include detection
Chip U2, LED D1, resistance R1, detection chip U2 use M12807A22, detection chip U2 3 pin connection power circuit output
End, detection chip U2 2 pin ground connection, detection chip U2 1 pin connection LED D1 negative pole, LED D2 positive pole connection resistance
R1 one end, the resistance R1 other ends connect the positive pole of LED light source.
4. a kind of LED control circuit of low battery boosting continuation of the journey constant current according to claim 1 or 2 or 3, it is characterized in that
The switch element of duty cycle adjustment can be carried out by being in series between power circuit output end and voltage increase and current constant circuit on line, and switch is single
First control end connects control circuit of duty ratio, and control circuit of duty ratio includes control chip U1, button SW1, and switch element includes
Metal-oxide-semiconductor Q1, control chip U1 use MCU6556, and control chip U1 4 pin connection metal-oxide-semiconductor Q1 grid, the source electrode of metal-oxide-semiconductor connects
Connect power circuit output end, drain electrode connection energy storage inductor L1 one end of metal-oxide-semiconductor, control chip U1 2 pin and power circuit output
End connection, the pin of control chip U1 chips 1,3 pin are grounded respectively, and control chip U1 5 pin connection button SW1 one end, button SW1 is another
One end is grounded.
5. the LED control circuit of a kind of low battery boosting continuation of the journey constant current according to claim 1 or 2 or 3, it is characterized in that institute
State battery, the electric capacity C1 of power circuit including two-stage series connection, the just extremely power circuit output end of battery, GND ground connection,
Electric capacity C1 is attempted by battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720028028.5U CN206323616U (en) | 2017-01-11 | 2017-01-11 | A kind of LED control circuit of low battery boosting continuation of the journey constant current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720028028.5U CN206323616U (en) | 2017-01-11 | 2017-01-11 | A kind of LED control circuit of low battery boosting continuation of the journey constant current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206323616U true CN206323616U (en) | 2017-07-11 |
Family
ID=59261540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720028028.5U Expired - Fee Related CN206323616U (en) | 2017-01-11 | 2017-01-11 | A kind of LED control circuit of low battery boosting continuation of the journey constant current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206323616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108575022A (en) * | 2017-11-03 | 2018-09-25 | 常州星宇车灯股份有限公司 | One kind opening circuit for car light under automobile start and stop state |
-
2017
- 2017-01-11 CN CN201720028028.5U patent/CN206323616U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108575022A (en) * | 2017-11-03 | 2018-09-25 | 常州星宇车灯股份有限公司 | One kind opening circuit for car light under automobile start and stop state |
| CN108575022B (en) * | 2017-11-03 | 2023-12-26 | 常州星宇车灯股份有限公司 | Car light starting circuit used in car starting and stopping state |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209090055U (en) | A kind of electronic cigarette of voice control | |
| CN101026917A (en) | Solar LED lamp circuit | |
| CN206323616U (en) | A kind of LED control circuit of low battery boosting continuation of the journey constant current | |
| CN110446301A (en) | A kind of light-operated boosting LED function circuit of solar energy | |
| CN201396582Y (en) | Portable illumination device | |
| CN102014564B (en) | Practical and efficient LED drive circuit | |
| CN208638066U (en) | A kind of charger system | |
| CN109922568A (en) | Universal-type solar can control system | |
| CN203251457U (en) | Multifunctional controller circuit with broad voltage range | |
| CN103064325B (en) | Multiple-channel output control circuit | |
| CN202889702U (en) | PFM-based LED controller circuit | |
| CN205657875U (en) | Photovoltaic LED time delay lamp circuit that opens door | |
| CN210016668U (en) | Intelligent street lamp energized by software | |
| CN203632904U (en) | Led decorative lamp | |
| CN209571032U (en) | A kind of light alarm | |
| CN208548910U (en) | A kind of point-to-point wireless communication module based on LI-Fi | |
| CN202799277U (en) | Multifunctional flashlight | |
| CN205017642U (en) | Multi -functional LED lamp of intelligence | |
| CN201153599Y (en) | Solar energy illumination key ring | |
| CN217363367U (en) | Switch control circuit of mobile lighting equipment | |
| CN211457431U (en) | Automatic control circuit for solar lamp | |
| CN109640445A (en) | A kind of solar street lamp controller and its control method based on MPPT | |
| CN221043278U (en) | Flat voltage output and boost output circuit of solar street lamp | |
| CN203590569U (en) | LED lamp power supplying circuit | |
| CN2520625Y (en) | Lighting device of automatic switching from fluorescent lamp to LED vice versa |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20210111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |