TW200741619A - Current control circuit device for LED module - Google Patents

Current control circuit device for LED module

Info

Publication number
TW200741619A
TW200741619A TW095114772A TW95114772A TW200741619A TW 200741619 A TW200741619 A TW 200741619A TW 095114772 A TW095114772 A TW 095114772A TW 95114772 A TW95114772 A TW 95114772A TW 200741619 A TW200741619 A TW 200741619A
Authority
TW
Taiwan
Prior art keywords
current
control circuit
led module
current control
light emitting
Prior art date
Application number
TW095114772A
Other languages
Chinese (zh)
Other versions
TWI348667B (en
Inventor
jian-zhong Chen
Original Assignee
jian-zhong Chen
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 jian-zhong Chen filed Critical jian-zhong Chen
Priority to TW095114772A priority Critical patent/TW200741619A/en
Publication of TW200741619A publication Critical patent/TW200741619A/en
Application granted granted Critical
Publication of TWI348667B publication Critical patent/TWI348667B/zh

Links

Landscapes

  • Led Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

An optimal current control device of LED module includes a current control circuit, a first transistor, and a current limit protection circuit. The current control circuit contains a first resistor, and the first resistor is used to produce a first current signal to adjust the light emitting power of a light emitting diode at least. The first transistor is used to control the operation of the light emitting unit through the first current signal, and then produced a second current signal further. A second transistor of the current limit protection circuit can base on the second current signal and a second resistor to determine the on/off status of the passage, and then can control this first current signal further. Hence, the LED module can be merely controlled the light emitting power through the current control circuit; even can be protected further from the current limit function of the current limit protection circuit.
TW095114772A 2006-04-25 2006-04-25 Current control circuit device for LED module TW200741619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW095114772A TW200741619A (en) 2006-04-25 2006-04-25 Current control circuit device for LED module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW095114772A TW200741619A (en) 2006-04-25 2006-04-25 Current control circuit device for LED module

Publications (2)

Publication Number Publication Date
TW200741619A true TW200741619A (en) 2007-11-01
TWI348667B TWI348667B (en) 2011-09-11

Family

ID=55855892

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095114772A TW200741619A (en) 2006-04-25 2006-04-25 Current control circuit device for LED module

Country Status (1)

Country Link
TW (1) TW200741619A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI611723B (en) * 2012-12-20 2018-01-11 阿庫而Ｉｃ股份有限公司 Driver circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI611723B (en) * 2012-12-20 2018-01-11 阿庫而Ｉｃ股份有限公司 Driver circuit

Also Published As

Publication number Publication date
TWI348667B (en) 2011-09-11

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Legal Events

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