发明授权
- 专利标题： Semiconductor light source and light-emitting device drive circuit
- 专利标题（中）： 半导体光源和发光装置驱动电路
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申请号： US12280603申请日： 2007-03-14
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公开(公告)号： US07773646B2公开(公告)日： 2010-08-10
- 发明人: Daisuke Ueda , Masaaki Yuri , Katsumi Sugiura , Kenichi Matsuda
- 申请人： Daisuke Ueda , Masaaki Yuri , Katsumi Sugiura , Kenichi Matsuda
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2006-151646 20060531
- 国际申请： PCT/JP2007/055090 WO 20070314
- 国际公布： WO2007/138774 WO 20071206
- 主分类号： H01S3/00
- IPC分类号： H01S3/00
摘要：
A semiconductor light source includes a light-emitting device 101 having a plurality of semiconductor layers made of nitride semiconductors, and a drive circuit 102 for driving the light-emitting device 101. The drive circuit 102 performs forward drive operation, in which a forward current is supplied to the light-emitting device to make the light-emitting device 101 emit light, and reverse drive operation, in which a reverse bias is applied to the light-emitting device. The magnitude of the reverse bias is limited by the value of a reverse current flowing through the light-emitting device.
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