Invention Grant
- Patent Title: Thermal regulation of a class-D audio amplifier
- Patent Title (中): D类音频放大器的热调节
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Application No.: US12591030Application Date: 2009-11-05
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Publication No.: US08018280B2Publication Date: 2011-09-13
- Inventor: Chun-Tsung Chen , Jwin-Yen Guo , Chung-Fu Wang
- Applicant: Chun-Tsung Chen , Jwin-Yen Guo , Chung-Fu Wang
- Applicant Address: TW Hsinchu
- Assignee: Richtek Technology Corp.
- Current Assignee: Richtek Technology Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Rosenberg, Klein & Lee
- Priority: TW97143388A 20081110
- Main IPC: H03F3/217
- IPC: H03F3/217
Abstract:
A class-D audio amplifier is protected by thermal regulation which decreases the gain of the class-D audio amplifier by asserting an over-temperature signal when the temperature of the class-D audio amplifier is detected to be higher than a threshold. The output of the class-D audio amplifier is therefore reduced by the smaller gain, and the chance for the class-D audio amplifier to stop working due to overheating is greatly reduced.
Public/Granted literature
- US20100117731A1 Thermal regulation of a class-D audio amplifier Public/Granted day:2010-05-13
Information query
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