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TW200705812A - Multi-function active circuit of PWM chip - Google Patents

Multi-function active circuit of PWM chip

Info

Publication number
TW200705812A
TW200705812A TW094125711A TW94125711A TW200705812A TW 200705812 A TW200705812 A TW 200705812A TW 094125711 A TW094125711 A TW 094125711A TW 94125711 A TW94125711 A TW 94125711A TW 200705812 A TW200705812 A TW 200705812A
Authority
TW
Taiwan
Prior art keywords
active circuit
function active
pwm chip
circuit
high voltage
Prior art date
Application number
TW094125711A
Other languages
Chinese (zh)
Inventor
fu-yuan Shi
Min-Ying Guo
Hung-Ta Lee
yuan-wen Zhang
Yung-Chiang Tang
Original Assignee
Leadtrend Tech Corp
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 Leadtrend Tech Corp filed Critical Leadtrend Tech Corp
Priority to TW094125711A priority Critical patent/TW200705812A/en
Publication of TW200705812A publication Critical patent/TW200705812A/en

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Abstract

The invention provides a multi-function active circuit of PWM chip. By compensating for the input voltage, improving the path of voltage brownout detection, and switching the current route of the high voltage terminal to a current detection circuit and a linear compensator through an electrical switch, the multi-function active circuit has only one terminal connected to the high voltage terminal but still has multiple functions, such that the power consumption of the activation circuit can be minimized.
TW094125711A 2005-07-29 2005-07-29 Multi-function active circuit of PWM chip TW200705812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW094125711A TW200705812A (en) 2005-07-29 2005-07-29 Multi-function active circuit of PWM chip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094125711A TW200705812A (en) 2005-07-29 2005-07-29 Multi-function active circuit of PWM chip

Publications (1)

Publication Number Publication Date
TW200705812A true TW200705812A (en) 2007-02-01

Family

ID=57910702

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094125711A TW200705812A (en) 2005-07-29 2005-07-29 Multi-function active circuit of PWM chip

Country Status (1)

Country Link
TW (1) TW200705812A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102638916A (en) * 2011-02-11 2012-08-15 厦门普为光电科技有限公司 LED (Light-Emitting Diode) lamp and isolation trigger type LED drive circuit
TWI382302B (en) * 2008-07-18 2013-01-11 Hon Hai Prec Ind Co Ltd Power supply circuit for pwm controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI382302B (en) * 2008-07-18 2013-01-11 Hon Hai Prec Ind Co Ltd Power supply circuit for pwm controller
CN102638916A (en) * 2011-02-11 2012-08-15 厦门普为光电科技有限公司 LED (Light-Emitting Diode) lamp and isolation trigger type LED drive circuit

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