Invention Grant
US07675761B2 Method and apparatus to control two regulated outputs of a flyback power supply
有权
控制回扫电源的两个稳压输出的方法和装置
- Patent Title: Method and apparatus to control two regulated outputs of a flyback power supply
- Patent Title (中): 控制回扫电源的两个稳压输出的方法和装置
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Application No.: US11809375Application Date: 2007-06-01
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Publication No.: US07675761B2Publication Date: 2010-03-09
- Inventor: Jason E. Cuadra , Simon Krugly , Peter Vaughan
- Applicant: Jason E. Cuadra , Simon Krugly , Peter Vaughan
- Applicant Address: US CA San Jose
- Assignee: Power Integrations, Inc.
- Current Assignee: Power Integrations, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Blakely Sokoloff Taylor & Zafman, LLP
- Main IPC: H02M3/335
- IPC: H02M3/335

Abstract:
A flyback power supply method and apparatus is disclosed. An apparatus according to aspects of the present invention includes an energy transfer element having a primary winding and first and second output windings. The first and second output windings are coupled to produce first and second output values, respectively. A primary switch is coupled to the primary winding. A control circuit is coupled to the primary switch to regulate a sum of the first and second output values. A steering circuit having first and second output switches is also included. The first and second output switches are coupled to the first and second output windings, respectively, to regulate a ratio of the first output value to the second output value. The first output switch is coupled to block current through the first output winding and the second output switch is coupled to block current through second output winding. At least one of the first and second output switches is coupled to be closed when the primary switch is opened.
Public/Granted literature
- US20080298094A1 Method and apparatus to control two regulated outputs of a flyback power supply Public/Granted day:2008-12-04
Information query
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