发明申请
- 专利标题： LOW COST POWER SUPPLY CIRCUIT AND METHOD
- 专利标题（中）： 低成本电源电路和方法
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申请号： US13381980申请日： 2010-06-29
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公开(公告)号： US20120112657A1公开(公告)日： 2012-05-10
- 发明人: Geert Willem Van Der Veen , Jeroen Snelten
- 申请人： Geert Willem Van Der Veen , Jeroen Snelten
- 申请人地址： NL Eindhoven
- 专利权人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
- 当前专利权人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
- 当前专利权人地址： NL Eindhoven
- 优先权： EP09164493.0 20090703
- 国际申请： PCT/IB2010/052953 WO 20100629
- 主分类号： H05B37/02
- IPC分类号： H05B37/02 ; H02J1/00 ; H02M3/335
摘要：
A power supply circuit has an LLC converter stage for converting a DC voltage input into a DC voltage output, and at least one hysteretic converter stage. Each hysteretic converter stage has a DC voltage input coupled to the DC voltage output of the LLC converter stage, and a DC current output. The LLC converter stage lacks a feedback control, and is operated at its load independent point. A ripple on the DC voltage output of the LLC converter does not affect the output current of the hysteretic converter stage. The stable DC current output of the hysteretic converter stage is coupled to a load having one or more LED strings.
公开/授权文献
- US08754587B2 Low cost power supply circuit and method 公开/授权日：2014-06-17
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