CN204482100U - A kind of White LED Drive - Google Patents
A kind of White LED Drive Download PDFInfo
- Publication number
- CN204482100U CN204482100U CN201520171802.9U CN201520171802U CN204482100U CN 204482100 U CN204482100 U CN 204482100U CN 201520171802 U CN201520171802 U CN 201520171802U CN 204482100 U CN204482100 U CN 204482100U
- Authority
- CN
- China
- Prior art keywords
- power supply
- white led
- multiple led
- ground connection
- led drive
- 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
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
Abstract
The utility model discloses a kind of White LED Drive, comprise DC power supply input, multiple LED, draw together driving chip, triode, feedback resistance, described driving chip pin comprises: VCC, VDR, GND, ISEN, STDN, described DC power supply input is connected with VCC, ground connection after described DC power supply inputs and connects with multiple LED, described VDR is connected with transistor base, described triode passes through collector electrode, emitter and multiple LED are in parallel, described feedback resistance is connected between emitter and ground connection, described ISEN and feedback resistance are in series, described STDN is connected with switching signal, described GND ground connection.A kind of White LED Drive that the utility model provides, support single or multiple white LED lamp, operating voltage is low, and standby current is low, makes circuit safety higher by external transistor.
Description
Technical field
The utility model relates to a kind of White LED Drive, belongs to LED Driving technique field.
Background technology
Recent years mobile phone, the portable electronic product such as PDA liquid crystal display be replaced with colored screen from black and white screen gradually, because liquid crystal itself can not be luminous so liquid crystal display must utilize backlight illuminating unit to show the information of screen.The backlight illuminating unit of portable electronic product, based on considerations such as power consumptions, therefore often selects white light LEDs to be the main luminescence component of backlight illuminating unit.
Utility model content
Object: in order to overcome the deficiencies in the prior art, the utility model provides a kind of White LED Drive.
Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of White LED Drive, comprise DC power supply input, multiple LED, driving chip, triode, feedback resistance, described driving chip pin comprises: VCC, VDR, GND, ISEN, STDN, described DC power supply input is connected with VCC, ground connection after described DC power supply inputs and connects with multiple LED, described VDR is connected with transistor base, described triode passes through collector electrode, emitter and multiple LED are in parallel, described feedback resistance is connected between emitter and ground connection, described ISEN and feedback resistance are in series, described STDN is connected with switching signal, described GND ground connection.
Also comprise protection inductance, described protection inductance is connected between DC power supply input and multiple LED.
Also comprise voltage stabilizing didoe, described voltage stabilizing didoe is connected between DC power supply input and multiple LED.
Also comprise protection electric capacity, described protection electric capacity and multiple LED are in parallel.
Preferably, described voltage stabilizing didoe is set to Xiao's thing based diode.
Preferably, described driving chip is set to GEC8310.
Beneficial effect: a kind of White LED Drive that the utility model provides, support single or multiple white LED lamp, operating voltage is low, and standby current is low, makes circuit safety higher by external transistor.
Accompanying drawing explanation
Fig. 1 is structural representation 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 White LED Drive, comprise DC power supply input 1, multiple LED 2, driving chip 3, triode 4, feedback resistance 5, described driving chip 3 pin comprises: VCC, VDR, GND, ISEN, STDN, described DC power supply input 1 is connected with VCC, described DC power supply input 1 connect with multiple LED 2 after ground connection, described VDR is connected with triode 4 base stage, described triode 4 passes through collector electrode, emitter and multiple LED 2 are in parallel, described feedback resistance 5 is connected between emitter and ground connection, described ISEN and feedback resistance 5 are in series, described STDN is connected with switching signal 6, described GND ground connection.
Also comprise protection inductance 7, described protection inductance 7 is connected between DC power supply input 1 and multiple LED 2.
Also comprise voltage stabilizing didoe 8, described voltage stabilizing didoe 8 is connected between DC power supply input 1 and multiple LED 2.
Also comprise protection electric capacity 9, described protection electric capacity 9 is in parallel with multiple LED phase 2.
Preferably, described voltage stabilizing didoe 8 is set to Xiao's thing based diode.
Preferably, described driving chip 3 is set to GEC8310.
Driving chip pin: VCC: voltage input end, VDR: triode drive output, GND: ground connection, ISEN: current detecting end, STDN: Opportunity awaiting control for linear end.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. a White LED Drive, comprise DC power supply input, multiple LED, it is characterized in that: also comprise driving chip, triode, feedback resistance, described driving chip pin comprises: VCC, VDR, GND, ISEN, STDN, described DC power supply input is connected with VCC, ground connection after described DC power supply inputs and connects with multiple LED, described VDR is connected with transistor base, described triode passes through collector electrode, emitter and multiple LED are in parallel, described feedback resistance is connected between emitter and ground connection, described ISEN and feedback resistance are in series, described STDN is connected with switching signal, described GND ground connection.
2. a kind of White LED Drive according to claim 1, is characterized in that: also comprise protection inductance, and described protection inductance is connected between DC power supply input and multiple LED.
3. a kind of White LED Drive according to claim 1, is characterized in that: also comprise voltage stabilizing didoe, and described voltage stabilizing didoe is connected between DC power supply input and multiple LED.
4. a kind of White LED Drive according to claim 1, is characterized in that: also comprise protection electric capacity, described protection electric capacity and multiple LED are in parallel.
5. a kind of White LED Drive according to claim 1, is characterized in that: described driving chip is set to GEC8310.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171802.9U CN204482100U (en) | 2015-03-26 | 2015-03-26 | A kind of White LED Drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171802.9U CN204482100U (en) | 2015-03-26 | 2015-03-26 | A kind of White LED Drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204482100U true CN204482100U (en) | 2015-07-15 |
Family
ID=53637870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520171802.9U Expired - Fee Related CN204482100U (en) | 2015-03-26 | 2015-03-26 | A kind of White LED Drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204482100U (en) |
-
2015
- 2015-03-26 CN CN201520171802.9U patent/CN204482100U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161017 Address after: 528434 Fu Fu town, Guangdong City, Zhongshan province Fu West Road Patentee after: Zhongshan technetium photoelectric Co., Ltd. Address before: Zhenjiang City, Jiangsu Province, 212000 Jingkou District Road No. 301, building 206, room 2141 Patentee before: Li Zhe |
|
| 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: 20150715 Termination date: 20170326 |