发明授权
US08923020B2 Switching power supply circuit having shunt regulator with switchable gain
有权
具有分流调节器的开关电源电路，具有可切换增益
- 专利标题： Switching power supply circuit having shunt regulator with switchable gain
- 专利标题（中）： 具有分流调节器的开关电源电路，具有可切换增益
-
申请号： US13824744申请日： 2012-07-10
-
公开(公告)号： US08923020B2公开(公告)日： 2014-12-30
- 发明人: Takeshi Tazawa
- 申请人： Takeshi Tazawa
- 申请人地址： JP Osaka
- 专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： Renner, Otto, Boisselle & Sklar, LLP
- 优先权： JP2012-002728 20120111
- 国际申请： PCT/JP2012/004453 WO 20120710
- 国际公布： WO2013/105150 WO 20130718
- 主分类号： H02M3/335
- IPC分类号： H02M3/335 ; H02M1/00
摘要：
A switching power supply circuit (101) includes a first rectifier circuit (102) converting an alternate current to a direct current, a switching operator (20), a switching transformer (103) including a primary coil supplied with a switched current and a secondary coil inducing power corresponding to the current, a second rectifier circuit (30) rectifying the power induced by the secondary coil, and a control circuit (40) changing a ratio of a current flowing to a photocoupler (107) to an output voltage from the second rectifier circuit (30) in a standby mode and in a power-on mode to reduce a noise of the switching transformer in each of the modes.
公开/授权文献
- US20140185332A1 SWITCHING POWER SUPPLY CIRCUIT 公开/授权日：2014-07-03
信息查询
IPC分类:
