Invention Application
- Patent Title: AUDIO-SKIPPING OF A CONSTANT ON-TIME POWER CONVERTER
- Patent Title (中): 定时电源转换器的音频输出
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Application No.: US13307644Application Date: 2011-11-30
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Publication No.: US20120133348A1Publication Date: 2012-05-31
- Inventor: Po-Chin FAN , Kuo-Ping LIU
- Applicant: Po-Chin FAN , Kuo-Ping LIU
- Applicant Address: TW Hsinchu
- Assignee: RICHTEK TECHNOLOGY CORP.
- Current Assignee: RICHTEK TECHNOLOGY CORP.
- Current Assignee Address: TW Hsinchu
- Priority: TW099141405 20101130
- Main IPC: G05F1/10
- IPC: G05F1/10
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
- US08664929B2 Audio-skipping of a constant on-time power converter Public/Granted day:2014-03-04
Information query
IPC分类:
