发明申请
- 专利标题： SWITCH-MODE POWER SUPPLY HAVING REDUCED AUDIBLE NOISE
- 专利标题（中）： 具有减少可听噪声的开关电源
-
申请号： US12689556申请日： 2010-01-19
-
公开(公告)号： US20110175584A1公开(公告)日： 2011-07-21
- 发明人: Laszlo Huber , Milan M. Jovanovic , Chien-Chung Chang
- 申请人： Laszlo Huber , Milan M. Jovanovic , Chien-Chung Chang
- 申请人地址： TW Taipei
- 专利权人： DELTA ELECTRONICS INC.
- 当前专利权人： DELTA ELECTRONICS INC.
- 当前专利权人地址： TW Taipei
- 主分类号： G05F1/10
- IPC分类号： G05F1/10
摘要：
A power supply having an input and an output, includes a power converter coupled between the input and output of the power supply including at least one switch that is controlled by comparing a sensed voltage, the sensed voltage corresponding to a current flowing through the switch, to a reference voltage. A controller, in response to a change detected in a switching frequency of the switch, reduces audible noise generated by the power supply by at least one of: adjusting the reference voltage; adjusting the current sense voltage; or adjusting a resistance used to generate the sensed voltage.
公开/授权文献
- US08410768B2 Switch-mode power supply having reduced audible noise 公开/授权日：2013-04-02
信息查询
IPC分类:
