Invention Grant
- Patent Title: Audio-skipping of a constant on-time power converter
- Patent Title (中): 音频跳过一个恒定的on-time电源转换器
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Application No.: US13307644Application Date: 2011-11-30
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Publication No.: US08664929B2Publication Date: 2014-03-04
- Inventor: Po-Chin Fan , Kuo-Ping Liu
- Applicant: Po-Chin Fan , Kuo-Ping Liu
- Applicant Address: TW Chupei, Hsinchu
- Assignee: Ricktek Technology Corp.
- Current Assignee: Ricktek Technology Corp.
- Current Assignee Address: TW Chupei, Hsinchu
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: TW99141405A 20101130
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
When the switching frequency of a constant on-time power converter decreases to a threshold, the power converter is switched from the original operation of triggering a constant on-time of a high-side switch responsive to the output voltage of the power converter reaching a valley point to the operation of triggering a constant off-time of the high-side switch responsive to the output voltage reaching a peak point, to thereby prevent the power converter from operating in an audio frequency range.
Public/Granted literature
- US20120133348A1 AUDIO-SKIPPING OF A CONSTANT ON-TIME POWER CONVERTER Public/Granted day:2012-05-31
Information query
IPC分类:
