TW200708916A - Control circuit for proportional driving switching power supply - Google Patents

Control circuit for proportional driving switching power supply

Info

Publication number
TW200708916A
TW200708916A TW094129712A TW94129712A TW200708916A TW 200708916 A TW200708916 A TW 200708916A TW 094129712 A TW094129712 A TW 094129712A TW 94129712 A TW94129712 A TW 94129712A TW 200708916 A TW200708916 A TW 200708916A
Authority
TW
Taiwan
Prior art keywords
power supply
signal
terminal
control circuit
output
Prior art date
Application number
TW094129712A
Other languages
Chinese (zh)
Other versions
TWI274977B (en
Inventor
Ta-Yung Yang
Cheng-Chi Hsueh
Rui-Hong Lu
Chou-Sheng Wang
Original Assignee
System General 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 System General Corp filed Critical System General Corp
Priority to TW94129712A priority Critical patent/TWI274977B/en
Application granted granted Critical
Publication of TW200708916A publication Critical patent/TW200708916A/en
Publication of TWI274977B publication Critical patent/TWI274977B/en

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Abstract

A control circuit for proportional driving switching power supply is proposed. The control circuit includes a feedback control circuit for the feedback control of the power supply. A soft-start terminal determines a soft-start period of the power supply. A first output terminal and a second output terminal respectively generate a first output signal and a second output signal coupled to drive a first switch and a second switch for switching a transformer and regulating an output of the power supply. A protection unit has voltage- detection terminals, current-detection terminals, a power-detection terminal and a signal-detection terminal. The signal-detection terminal detects a voltage level of the transformer signal. An on/off terminal receives an on/off control signal to turn on/off the power supply. Furthermore, a power-good terminal generates a power-good signal to indicate an output condition of the power supply.
TW94129712A 2005-08-30 2005-08-30 Control circuit for proportional driving switching power supply TWI274977B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94129712A TWI274977B (en) 2005-08-30 2005-08-30 Control circuit for proportional driving switching power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94129712A TWI274977B (en) 2005-08-30 2005-08-30 Control circuit for proportional driving switching power supply

Publications (2)

Publication Number Publication Date
TW200708916A true TW200708916A (en) 2007-03-01
TWI274977B TWI274977B (en) 2007-03-01

Family

ID=38624229

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94129712A TWI274977B (en) 2005-08-30 2005-08-30 Control circuit for proportional driving switching power supply

Country Status (1)

Country Link
TW (1) TWI274977B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110707933A (en) * 2014-09-25 2020-01-17 英特尔公司 Power supply unit suitable for different power modes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110707933A (en) * 2014-09-25 2020-01-17 英特尔公司 Power supply unit suitable for different power modes

Also Published As

Publication number Publication date
TWI274977B (en) 2007-03-01

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Legal Events

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