TW200729678A - LED drive circuit with stable output current source - Google Patents

LED drive circuit with stable output current source

Info

Publication number
TW200729678A
TW200729678A TW095103333A TW95103333A TW200729678A TW 200729678 A TW200729678 A TW 200729678A TW 095103333 A TW095103333 A TW 095103333A TW 95103333 A TW95103333 A TW 95103333A TW 200729678 A TW200729678 A TW 200729678A
Authority
TW
Taiwan
Prior art keywords
drive circuit
resistance
transistor
circuit
current source
Prior art date
Application number
TW095103333A
Other languages
English (en)
Other versions
TWI312224B (zh
Inventor
Zong-Jian Peng
Wen-Da Zhan
Original Assignee
Weltrend Semiconductor 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 Weltrend Semiconductor Inc filed Critical Weltrend Semiconductor Inc
Priority to TW095103333A priority Critical patent/TW200729678A/zh
Publication of TW200729678A publication Critical patent/TW200729678A/zh
Application granted granted Critical
Publication of TWI312224B publication Critical patent/TWI312224B/zh

Links

TW095103333A 2006-01-27 2006-01-27 LED drive circuit with stable output current source TW200729678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW095103333A TW200729678A (en) 2006-01-27 2006-01-27 LED drive circuit with stable output current source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW095103333A TW200729678A (en) 2006-01-27 2006-01-27 LED drive circuit with stable output current source

Publications (2)

Publication Number Publication Date
TW200729678A true TW200729678A (en) 2007-08-01
TWI312224B TWI312224B (zh) 2009-07-11

Family

ID=45072552

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095103333A TW200729678A (en) 2006-01-27 2006-01-27 LED drive circuit with stable output current source

Country Status (1)

Country Link
TW (1) TW200729678A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI420956B (zh) * 2009-06-05 2013-12-21 Himax Analogic Inc 發光二極體驅動器及其中之啟始迴授電路
TWI510880B (zh) * 2014-04-03 2015-12-01 Himax Tech Ltd 溫度非相關之整合電壓源與電流源

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI415517B (zh) * 2010-04-14 2013-11-11 Ultrachip Inc 發光二極體驅動電路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI420956B (zh) * 2009-06-05 2013-12-21 Himax Analogic Inc 發光二極體驅動器及其中之啟始迴授電路
TWI510880B (zh) * 2014-04-03 2015-12-01 Himax Tech Ltd 溫度非相關之整合電壓源與電流源

Also Published As

Publication number Publication date
TWI312224B (zh) 2009-07-11

Similar Documents

Publication Publication Date Title
ATE465620T1 (de) Lichtelementarray mit steuerbaren stromquellen und betriebsverfahren dafür
NZ619848A (en) Led light controller system and method
SG132609A1 (en) Led replacement bulb
TW200618329A (en) Driving device for light emitted diode
WO2009008141A1 (ja) 発光素子の駆動回路および電子機器
WO2009041437A1 (ja) 調光装置及びそれを用いた照明装置
RU2014108990A (ru) Светодиодный (led) источник света с пониженным мерцанием
WO2011043912A3 (en) Method and apparatus for power driving
US9585208B2 (en) LED power circuit using discrete components and configuration method
WO2010131819A1 (ko) 발광다이오드 구동회로
RU2013131244A (ru) Электролюминесцентное устройство с регулируемой цветовой точкой
WO2016113157A1 (en) Operation of led lighting elements under control with a light sensitive element
EP2712272A3 (en) Power supply device and luminaire
TW200729678A (en) LED drive circuit with stable output current source
NO20042998L (no) Kretsanordning for drift av lyssignal
KR102013971B1 (ko) 전압 및 온도에 응답하여 발광 다이오드를 디밍하도록 구성된 드라이브 장치를 포함하는 조명 장치
WO2007126738A3 (en) Limited current circuit for electro-luminescent lamp inverter
CZ2013300A3 (cs) Pulzně spínaný ovladač pro led osvětlení napájecího modulu
PH12015000254A1 (en) Light-emitting diode bulb
JP2018098104A (ja) 点灯装置及び照明器具
KR101147781B1 (ko) Ｌｅｄ 조명을 안전하게 발광시키는 회로
TW200728954A (en) Charge pump circuit for constant current output
RU2634302C2 (ru) Интегральный светодиодный излучатель
TWM576360U (zh) Regulating circuit for stabilizing luminous power of light-emitting diode
CN203251484U (zh) 一种电子蜡烛灯中的稳流控制电路