发明名称 |
POWER CIRCUIT AND ILLUMINATION APPARATUS |
摘要 |
A series load circuit is a circuit formed by connecting a light-emitting device unit 851 (the first load circuit) and a light-emitting device unit 852 (the second load circuit) in series. A voltage generating circuit 111 generates voltage to be applied to the series load circuit. A current detecting circuit 112 detects electric current flowing through the light-emitting device unit 851. A controlling circuit 114 controls the voltage generating circuit 111 so that the electric current detected by the current detecting circuit 112 becomes a predetermined current value.
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申请公布号 |
US2010194307(A1) |
申请公布日期 |
2010.08.05 |
申请号 |
US20090484265 |
申请日期 |
2009.06.15 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION;MITSUBISHI ELECTRIC LIGHTING CORPORATION |
发明人 |
NONAKA TAKAFUMI;KUMAGAI TAKASHI;MATSUBARA NORIYUKI;BAN KAZUO;SAITO KOICHI |
分类号 |
H05B37/02;H02J3/00 |
主分类号 |
H05B37/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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