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TW200617471A - LED driving circuit - Google Patents

LED driving circuit

Info

Publication number
TW200617471A
TW200617471A TW093135201A TW93135201A TW200617471A TW 200617471 A TW200617471 A TW 200617471A TW 093135201 A TW093135201 A TW 093135201A TW 93135201 A TW93135201 A TW 93135201A TW 200617471 A TW200617471 A TW 200617471A
Authority
TW
Taiwan
Prior art keywords
voltage
led
driving circuit
led driving
power converter
Prior art date
Application number
TW093135201A
Other languages
Chinese (zh)
Other versions
TWI255942B (en
Inventor
Mark Wu
Original Assignee
Asia Optical Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asia Optical Co Inc filed Critical Asia Optical Co Inc
Priority to TW93135201A priority Critical patent/TWI255942B/en
Application granted granted Critical
Publication of TW200617471A publication Critical patent/TW200617471A/en
Publication of TWI255942B publication Critical patent/TWI255942B/en

Links

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  • Led Devices (AREA)

Abstract

An LED driving circuit is provided. The LED driving circuit comprises a power converter, an LED loading, a detection resistor and voltage-division circuit. The power converter outputs a current to the LED loading according to a voltage difference between a reference voltage and a detected voltage. The current flows through the LED loading and the detection resistor. The voltage-division circuit connects to three end of the power converter, LED load and the detection resistor. Wherein, the detected voltage can be gotten from the voltage-division circuit.
TW93135201A 2004-11-17 2004-11-17 LED driving circuit TWI255942B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93135201A TWI255942B (en) 2004-11-17 2004-11-17 LED driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93135201A TWI255942B (en) 2004-11-17 2004-11-17 LED driving circuit

Publications (2)

Publication Number Publication Date
TW200617471A true TW200617471A (en) 2006-06-01
TWI255942B TWI255942B (en) 2006-06-01

Family

ID=37614031

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93135201A TWI255942B (en) 2004-11-17 2004-11-17 LED driving circuit

Country Status (1)

Country Link
TW (1) TWI255942B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI400517B (en) * 2009-05-08 2013-07-01 Chunghwa Picture Tubes Ltd Light emitting diode driving device and method thereof
TWI454875B (en) * 2009-07-17 2014-10-01 Novatek Microelectronics Corp Driving apparatus for load

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI495393B (en) * 2009-05-09 2015-08-01 Innosys Inc Universal dimmer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI400517B (en) * 2009-05-08 2013-07-01 Chunghwa Picture Tubes Ltd Light emitting diode driving device and method thereof
TWI454875B (en) * 2009-07-17 2014-10-01 Novatek Microelectronics Corp Driving apparatus for load

Also Published As

Publication number Publication date
TWI255942B (en) 2006-06-01

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees