发明名称 |
Omni voltage direct current power supply |
摘要 |
A battery operated LED lighting apparatus including: a battery outputting a battery voltage; a light emitting diode or array of light emitting diodes; and a power supply including a boost regulating circuit. The power supply being in communication with the battery and the light emitting diodes such that a constant voltage or constant current is supplied to the light emitting diodes as the battery discharges and the battery voltage falls below the output voltage. In a preferred embodiment the power supply further includes a buck regulator to maintain the proper output voltage when the battery voltage is greater than the output voltage.
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申请公布号 |
US7569996(B2) |
申请公布日期 |
2009.08.04 |
申请号 |
US20040708717 |
申请日期 |
2004.03.19 |
申请人 |
HOLMES FRED H;BAXTER KEVIN C;FISHER KEN S |
发明人 |
HOLMES FRED H;BAXTER KEVIN C;FISHER KEN S |
分类号 |
H03K3/42;H01K7/00;H04N5/225;H05B33/08 |
主分类号 |
H03K3/42 |
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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