发明申请
- 专利标题： POWER SUPPLY DEVICE AND LIGHTING DEVICE
- 专利标题（中）： 电源设备和照明设备
-
申请号： US14237124申请日： 2012-08-10
-
公开(公告)号： US20140306621A1公开(公告)日： 2014-10-16
- 发明人: Ryohhei Tada
- 申请人： Ryohhei Tada
- 申请人地址： JP Osaka-shi, Osaka
- 专利权人： SHARP KABUSHIKI KAISHA
- 当前专利权人： SHARP KABUSHIKI KAISHA
- 当前专利权人地址： JP Osaka-shi, Osaka
- 优先权： JP2011-177081 20110812
- 国际申请： PCT/JP2012/070473 WO 20120810
- 主分类号： H02M3/156
- IPC分类号： H02M3/156 ; H05B33/08
摘要：
A power supply device is provided with the following: a rectifier circuit that rectifies an alternating voltage from an alternating current source; a booster circuit that boosts the voltage after rectification, and generates an input side voltage of a voltage conversion unit; the voltage conversion unit that outputs a voltage required for reducing the input side voltage and supplying the input side voltage to a light source; a voltage current detection unit that determines whether or not the light source is connected; and an output voltage control unit that, if it is determined that a first resistor and a second resistor, which are connected in parallel with respect to the light source, and the light source are not connected, controls the voltage of the first resistor so that the voltage is no more than a prescribed value.
公开/授权文献
- US09287775B2 Power supply device and lighting device 公开/授权日：2016-03-15
信息查询
IPC分类:
