Invention Grant
- Patent Title: Power converter having flux bias regulation method
- Patent Title (中): 功率转换器具有通量偏置调节方式
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Application No.: US11834828Application Date: 2007-08-07
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Publication No.: US07813148B2Publication Date: 2010-10-12
- Inventor: Jianhong Zeng , Yuanyuan Zhang , Aibin Qiu , Kun Wei , Jianping Ying
- Applicant: Jianhong Zeng , Yuanyuan Zhang , Aibin Qiu , Kun Wei , Jianping Ying
- Applicant Address: TW Taoyuan Hsien
- Assignee: Delta Electronics, Inc.
- Current Assignee: Delta Electronics, Inc.
- Current Assignee Address: TW Taoyuan Hsien
- Priority: TW96106103A 20070216
- Main IPC: H02M3/335
- IPC: H02M3/335

Abstract:
Provided is a flux regulation method for use in a power converter, wherein the method is carried out by a flux bias controller. The flux bias controller includes a current detector which is configured to detect the primary current of the transformer of the power converter in a predetermined switching cycle, a DC bias processor which is configured to obtain the duty ratio control signal according to the sampled primary current outputted from the current detector for a switching cycle later than the predetermined switching cycle, and a PWM controller which is configured to generate driving signals to control the on/off operations of the switching circuit of the power converter according to the duty ratio control signal, thereby suppressing the DC bias of the transformer by regulating the duty ratio of the switch circuit.
Public/Granted literature
- US20080198631A1 POWER CONVERTER HAVING FLUX BIAS REGULATION METHOD Public/Granted day:2008-08-21
Information query
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