CN205566723U - Adjustable output current's LED drive power supply - Google Patents
Adjustable output current's LED drive power supply Download PDFInfo
- Publication number
- CN205566723U CN205566723U CN201620181479.8U CN201620181479U CN205566723U CN 205566723 U CN205566723 U CN 205566723U CN 201620181479 U CN201620181479 U CN 201620181479U CN 205566723 U CN205566723 U CN 205566723U
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- resistance
- switch
- led drive
- regulation
- drive power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model relates to a LED power, purpose can't carry out the problem that output current adjusted according to the applied scene of difference in order to solve current LED drive power supply. The utility model provides an adjustable output current's LED drive power supply, a serial communication port, including pull -up voltage source, constant current control integrated circuit, regulating switch circuit, second resistance, third resistance and fourth resistance, second resistance one end and regulating switch circuit connection, the other end is connected with the one end of third resistance, and the other end and the one end of fourth resistance of third resistance are connected, the other end ground connection of fourth resistance, the node of second resistance and third ohmic connection with constant current control integrated circuit connects, the node of third resistance and fourth ohmic connection with constant current control integrated circuit connects, and the regulating switch circuit is connected with the pull -up power. The utility model is suitable for a LED drive power supply.
Description
Technical field
This utility model relates to LED power, particularly to a kind of LED drive power that can regulate output electric current.
Background technology
At present, LED luminescence technology is widely used in various occasions, such as, illuminate and decorate, and LED is because of its low energy consumption and occurred frequently
Light rate and increasingly favored by consumers in general.At present, the general constant output current of LED drive power on market, to driving
Dynamic is loaded with particular requirement, i.e. for different LED product, needs to design special LED drive power.
Utility model content
The purpose of this utility model be in order to solve existing LED drive power cannot according to different application scenarios carry out output electricity
The problem of stream regulation.
For reaching above-mentioned purpose, this utility model provides the LED drive power of a kind of scalable output electric current, it is characterised in that
Including pull-up voltage source, current constant control integrated circuit, regulation on-off circuit, the second resistance, the 3rd resistance and the 4th resistance, institute
State second resistance one end to be connected with regulation on-off circuit, the connection of one end of the other end and the 3rd resistance, the other end of the 3rd resistance and
One end of 4th resistance connects, the other end ground connection of the 4th resistance, and the node that described second resistance and the 3rd resistance connect is with described
Current constant control integrated circuit connects, and the node that described 3rd resistance and the 4th resistance connect is connected with described current constant control integrated circuit,
Regulation on-off circuit is connected with pull-up power supply.
Specifically, described regulation on-off circuit includes the first resistance and regulation switch module, described first resistance and regulation switching molding
After block parallel connection, one end connects pull-up voltage source, and one end of the other end and the second resistance connects, if described regulation switch module includes
Dry shunt resistance and the regulation switch connected with described shunt resistance.
Specifically, described regulation switch module includes the first resistance, the first switch and the 5th resistance, and described first switch is with the 5th
Resistant series, with the first resistor coupled in parallel after series connection, the node formed in parallel is connected with one end of pull-up power supply, another node
It is connected with one end of the second resistance.
Further, described regulation switch module also includes second switch and the 6th resistance, described second switch and the 6th resistance string
Connection, with the first resistor coupled in parallel after series connection, the node formed in parallel is connected with one end of pull-up power supply, another node and second
One end of resistance connects.
Further, described regulation switch module also includes the 3rd switch and the 7th resistance, described 3rd switch and the 7th resistance string
Connection, with the first resistor coupled in parallel after series connection, the node formed in parallel is connected with one end of pull-up power supply, another node and second
One end of resistance connects.
In this utility model, the number regulating the number of switch and the shunt resistance of series connection with it in regulation switch module can root
Border application is arranged factually.In this utility model, above-mentioned the first switch, second switch and the 3rd switch are regulation and open
Closing, the 5th resistance, the 6th resistance and the 7th resistance are shunt resistance.
Preferably, described first switch, second switch and the 3rd switch are slide switch or touch-switch or toggle switch.
The beneficial effects of the utility model are: LED drive power of the present utility model, by increasing regulation switch in the supply,
By opening or closing switch, it is possible to achieve the control to LED drive power output electric current.Such that it is able to realize same power supply
Switching application at different LED application scenarios.
Accompanying drawing explanation
Fig. 1 is the LED drive power circuit schematic diagram of a kind of scalable of the present utility model output electric current.
Figure is labeled as: the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance Ra,
Six resistance Rb, the 7th resistance Rc, first switch K1, second switch K2, the 3rd switch K3, current constant control integrated circuit U1,
Pull-up power supply Vc.
Detailed description of the invention
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.It should be noted that, it is real
Execute and be only used to help reader to be more fully understood that technology of the present utility model design and the exemplary description that carries out, its not in order to
Limit protection domain of the present utility model.
This utility model is in prior art, and LED drive power cannot adjust, according to concrete application, the problem exported, it is provided that one
The LED drive power of kind of scalable output electric current, this driving power supply include pulling up voltage source Vc, current constant control integrated circuit U1,
Regulation on-off circuit, the second resistance, the 3rd resistance and the 4th resistance, described second resistance one end is connected with regulation on-off circuit,
One end of the other end and the 3rd resistance R3 connects, and the other end of the 3rd resistance R3 and one end of the 4th resistance R4 connect, the 4th electricity
The other end ground connection of resistance R4, the node that described second resistance R2 and the 3rd resistance R3 connects and described current constant control integrated circuit
U1 connects, and the node that described 3rd resistance R3 and the 4th resistance R4 connects is connected with described current constant control integrated circuit U1, adjusts
Joint on-off circuit is connected with pull-up power supply Vc.
Embodiment
Innovative point of the present utility model is to regulate on-off circuit application in LED drive power, and regulation on-off circuit includes the
One resistance R1, the first switch K1 and the 5th resistance R5, described first switch K1 and the 5th resistance Ra connects, with the after series connection
One resistance R1 is in parallel, and the node formed in parallel is connected with the one end pulling up power supply Vc, another node and the second resistance R2's
One end connects.In this case, it is possible to achieve two kinds of different electric currents outputs.
In this utility model, described regulation on-off circuit also includes second switch K2 and the 6th resistance Rb, described second switch
K2 and the 6th resistance Rb series connection, in parallel with the first resistance R1 after series connection, the node formed in parallel is with pull-up power supply Vc's
One end connects, and one end of another node and the second resistance R2 connects.In this case, it is possible to achieve four kinds of different electric currents are defeated
Go out.
In this utility model, described regulation on-off circuit also includes the 3rd switch K3 and the 7th resistance Rc, described 3rd switch
K3 and the 7th resistance Rc series connection, in parallel with the first resistance R1 after series connection, the node formed in parallel is with pull-up power supply Vc's
One end connects, and one end of another node and the second resistance R2 connects.In this case, it is possible to achieve eight kinds of different electric currents are defeated
Go out.
Scene demand according to application is different, described first switch K1, second switch K2 of the present utility model and the 3rd switch K3
For slide switch or touch-switch or toggle switch.
The operation principle of the LED drive power of scalable of the present utility model output electric current is as follows: the 4th resistance R4 is to arrange load
The detection resistance of electric current, flows through the electric current of load equal to V2/R4.PIN1 foot detects the voltage at V2 by the 3rd resistance R3,
Compare with the benchmark of current constant control integrated circuit U1 internal arithmetic amplifier, control the break-make of current constant control metal-oxide-semiconductor, make
Constant output current.
PIN1 foot voltage V1 compares with the reference voltage of internal arithmetic amplifier, when V1 is equal to internal reference voltage, internal
Operational amplifier will control MOS and disconnect, now, and V2=V1 VR3.
To sum up, when the 4th resistance R4 value is fixed, the output electric current of LED lamp tube can be set by changing the voltage of V2, i.e.
When K1, K2, K3 arbitrarily switch Guan Bi or disconnect, the electric current flowing through the 3rd resistance R3 will change, V2=V1 VR3,
Also can change.Thus realize exporting the change of electric current.
Such as:
| On off state | Output electric current |
| Switch standard-sized sheet | I1 |
| K1 closes | I2 |
| K2 closes | I3 |
| K3 closes | I4 |
| K1, K2 close | I5 |
| 。。。 | 。。。 |
| 。。。 | 。。。 |
Claims (6)
1. the LED drive power of a scalable output electric current, it is characterized in that, including pull-up voltage source, current constant control integrated circuit, regulation on-off circuit, second resistance, 3rd resistance and the 4th resistance, described second resistance one end is connected with regulation on-off circuit, one end of the other end and the 3rd resistance connects, the other end of the 3rd resistance and one end of the 4th resistance connect, the other end ground connection of the 4th resistance, the node that described second resistance and the 3rd resistance connect is connected with described current constant control integrated circuit, the node that described 3rd resistance and the 4th resistance connect is connected with described current constant control integrated circuit, regulation on-off circuit is connected with pull-up power supply.
The LED drive power of a kind of scalable the most as claimed in claim 1 output electric current, it is characterized in that, described regulation on-off circuit includes the first resistance and regulation switch module, after described first resistance is in parallel with regulation switch module, one end connects pull-up voltage source, one end of the other end and the second resistance connects, and described regulation switch module includes some shunt resistances and the regulation switch connected with described shunt resistance.
The LED drive power of a kind of scalable the most as claimed in claim 2 output electric current, it is characterized in that, described regulation switch module includes the first switch and the 5th resistance, described first switch and the 5th resistant series, with the first resistor coupled in parallel after series connection, the node formed in parallel is connected with one end of pull-up power supply, and one end of another node and the second resistance connects.
The LED drive power of a kind of scalable the most as claimed in claim 3 output electric current, it is characterized in that, described regulation switch module also includes second switch and the 6th resistance, described second switch and the 6th resistant series, with the first resistor coupled in parallel after series connection, the node formed in parallel is connected with one end of pull-up power supply, and one end of another node and the second resistance connects.
The LED drive power of a kind of scalable the most as claimed in claim 4 output electric current, it is characterized in that, described regulation switch module also includes the 3rd switch and the 7th resistance, described 3rd switch and the 7th resistant series, with the first resistor coupled in parallel after series connection, the node formed in parallel is connected with one end of pull-up power supply, and one end of another node and the second resistance connects.
The LED drive power of a kind of scalable the most as claimed in claim 5 output electric current, it is characterised in that described first switch, second switch and the 3rd switch are slide switch or touch-switch or toggle switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620181479.8U CN205566723U (en) | 2016-03-09 | 2016-03-09 | Adjustable output current's LED drive power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620181479.8U CN205566723U (en) | 2016-03-09 | 2016-03-09 | Adjustable output current's LED drive power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205566723U true CN205566723U (en) | 2016-09-07 |
Family
ID=56817223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620181479.8U Active CN205566723U (en) | 2016-03-09 | 2016-03-09 | Adjustable output current's LED drive power supply |
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| Country | Link |
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| CN (1) | CN205566723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591580A (en) * | 2018-04-03 | 2018-09-28 | 哈尔滨汽轮机厂有限责任公司 | A kind of simple servo valve drive and servo valve driving method |
| WO2021140912A1 (en) * | 2020-01-10 | 2021-07-15 | ソニーセミコンダクタソリューションズ株式会社 | Light-receiving device, ranging device, and light-receiving circuit |
-
2016
- 2016-03-09 CN CN201620181479.8U patent/CN205566723U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591580A (en) * | 2018-04-03 | 2018-09-28 | 哈尔滨汽轮机厂有限责任公司 | A kind of simple servo valve drive and servo valve driving method |
| CN108591580B (en) * | 2018-04-03 | 2019-08-09 | 哈尔滨汽轮机厂有限责任公司 | A kind of simple servo valve drive and servo valve driving method |
| WO2021140912A1 (en) * | 2020-01-10 | 2021-07-15 | ソニーセミコンダクタソリューションズ株式会社 | Light-receiving device, ranging device, and light-receiving circuit |
| JP7562570B2 (en) | 2020-01-10 | 2024-10-07 | ソニーセミコンダクタソリューションズ株式会社 | Light receiving device and distance measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190724 Address after: 621000 Exit Processing Zone 201 Factory Building, 261 Feiyun Avenue East Section, Mianyang High-tech Zone, Sichuan Province Patentee after: Sichuan Hongrui Electrical Co., Ltd. Address before: County 622651 Sichuan city of Mianyang Province Hua Gai Zhen Luo Sheng Jie Sichuan Changhong Electronics Co., Ltd. Patentee before: SICHUAN CHANGHONG ELECTRONIC PARTS CO., LTD. |
|
| TR01 | Transfer of patent right |