Invention Grant
- Patent Title: Control circuit for reducing electromagnetic interference
- Patent Title (中): 用于减少电磁干扰的控制电路
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Application No.: US13649929Application Date: 2012-10-11
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Publication No.: US08928421B2Publication Date: 2015-01-06
- Inventor: Yu-Wen Cheng , Chung-Ta Tsai
- Applicant: Macroblock, Inc.
- Applicant Address: TW Hsinchu
- Assignee: Macroblock, Inc.
- Current Assignee: Macroblock, Inc.
- Current Assignee Address: TW Hsinchu
- Agent Maschoff Brennan
- Priority: TW100136996A 20111012
- Main IPC: H03K3/02
- IPC: H03K3/02 ; H03L7/00 ; H04B15/04
Abstract:
A control circuit for reducing electromagnetic interference is provided. The control circuit includes a periodic signal generator and a modulation controller. The periodic signal generator adjusts a modulation periodic signal generated by the periodic signal generator, according to a feedback modulation signal. The modulation controller is coupled to the periodic signal generator, for receiving the modulation periodic signal, and adjusting a frequency of the received modulation periodic signal according to a plurality of delay periods set according to a plurality of control signals, and generating the feedback modulation signal.
Public/Granted literature
- US20130285757A1 CONTROL CIRCUIT FOR REDUCING ELECTROMAGNETIC INTERFERENCE Public/Granted day:2013-10-31
Information query
IPC分类:
