Invention Grant
- Patent Title: Circuit and method for sub-harmonic elimination of a power converter
- Patent Title (中): 电力转换器的次谐波消除电路及方法
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Application No.: US13267918Application Date: 2011-10-07
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Publication No.: US08665010B2Publication Date: 2014-03-04
- Inventor: Kun-Yu Lin , Pei-Lun Huang
- Applicant: Kun-Yu Lin , Pei-Lun Huang
- Applicant Address: KY Grand Cayman
- Assignee: Richpower Microelectronics Corporation
- Current Assignee: Richpower Microelectronics Corporation
- Current Assignee Address: KY Grand Cayman
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: CN201010504206 20101012
- Main IPC: H03B1/00
- IPC: H03B1/00
Abstract:
A circuit and method are provided for a power converter to select one from a plurality of current limit signals as a final current limit signal according to the present duty ratio of a power switch for the pulse width modulation of the next cycle, so that the duty ratio of the power switch in the next cycle is prevented from acute variation to eliminate sub-harmonic which otherwise may happen.
Public/Granted literature
- US20120086480A1 CIRCUIT AND METHOD FOR SUB-HARMONIC ELIMINATION OF A POWER CONVERTER Public/Granted day:2012-04-12
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