TW201613239A - Power supply apparatus with auxiliary winding switching circuit - Google Patents

Power supply apparatus with auxiliary winding switching circuit

Info

Publication number
TW201613239A
TW201613239A TW103131993A TW103131993A TW201613239A TW 201613239 A TW201613239 A TW 201613239A TW 103131993 A TW103131993 A TW 103131993A TW 103131993 A TW103131993 A TW 103131993A TW 201613239 A TW201613239 A TW 201613239A
Authority
TW
Taiwan
Prior art keywords
voltage
winding
auxiliary winding
switching circuit
power supply
Prior art date
Application number
TW103131993A
Other languages
Chinese (zh)
Other versions
TWI528693B (en
Inventor
Tso-Jen Peng
Ssu-Hao Wang
Original Assignee
Chicony Power Tech Co Ltd
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 Chicony Power Tech Co Ltd filed Critical Chicony Power Tech Co Ltd
Priority to TW103131993A priority Critical patent/TWI528693B/en
Application granted granted Critical
Publication of TW201613239A publication Critical patent/TW201613239A/en
Publication of TWI528693B publication Critical patent/TWI528693B/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

A power supply apparatus includes a main converter, an auxiliary winding switching circuit and a pulse width modulation controller. The main converter includes a transformer. The transformer includes a primary side winding, a secondary side winding and an auxiliary winding. The auxiliary winding includes a first winding and a second winding. According to a secondary side voltage, the first winding induces to generate a first voltage, and the second winding induces to generate a second voltage. The first voltage is greater than the second voltage. The auxiliary winding switching circuit sends the first voltage to the pulse width modulation controller when the first voltage is not greater than a predetermined voltage. The auxiliary winding switching circuit sends the second voltage to the pulse width modulation controller when the first voltage is greater than the predetermined voltage.
TW103131993A 2014-09-16 2014-09-16 Power supply apparatus with auxiliary winding switching circuit TWI528693B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW103131993A TWI528693B (en) 2014-09-16 2014-09-16 Power supply apparatus with auxiliary winding switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW103131993A TWI528693B (en) 2014-09-16 2014-09-16 Power supply apparatus with auxiliary winding switching circuit

Publications (2)

Publication Number Publication Date
TW201613239A true TW201613239A (en) 2016-04-01
TWI528693B TWI528693B (en) 2016-04-01

Family

ID=56360983

Family Applications (1)

Application Number Title Priority Date Filing Date
TW103131993A TWI528693B (en) 2014-09-16 2014-09-16 Power supply apparatus with auxiliary winding switching circuit

Country Status (1)

Country Link
TW (1) TWI528693B (en)

Also Published As

Publication number Publication date
TWI528693B (en) 2016-04-01

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