发明授权
- 专利标题： DC power source unit and LED lamp system
- 专利标题（中）： 直流电源单元和LED灯系统
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申请号： US13218767申请日： 2011-08-26
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公开(公告)号： US08823278B2公开(公告)日： 2014-09-02
- 发明人: Naoko Iwai , Toshihiko Sasai , Masahiko Kamata , Hiroshi Terasaka , Toru Ishikita , Hitoshi Kawano , Masatoshi Kumagai
- 申请人： Naoko Iwai , Toshihiko Sasai , Masahiko Kamata , Hiroshi Terasaka , Toru Ishikita , Hitoshi Kawano , Masatoshi Kumagai
- 申请人地址： JP Kanagawa
- 专利权人： Toshiba Lighting & Technology Corporation
- 当前专利权人： Toshiba Lighting & Technology Corporation
- 当前专利权人地址： JP Kanagawa
- 代理机构： DLA Piper LLP (US)
- 优先权： JP2010-188971 20100826
- 主分类号： H05B37/02
- IPC分类号： H05B37/02 ; H05B33/08
摘要：
A DC power source unit 37 is provided which boosts source voltage from a power source portion 36. A lighting circuit 38 is provided which supplies DC voltage to loads, the DC voltage being obtained by stepping down output current of the DC power source circuit 37. A control circuit 39 is provided which controls the lighting circuit 38 in accordance with at least either voltage or current of LEDs 25 and controls the DC power source unit 37 so that a ratio of output voltage to voltage of the LEDs 25 becomes a preset fixed ratio.
公开/授权文献
- US20120056560A1 DC POWER SOURCE UNIT AND LED LAMP SYSTEM 公开/授权日：2012-03-08
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