发明名称 |
ILLUMINATION DEVICE INCLUDING LEDS AND A SWITCHING POWER CONTROL SYSTEM |
摘要 |
Disclosed herein is an illumination device including light-emitting diodes, an alternating current input, a full-wave rectifier coupled to the alternating current input and configured to produce a rectified voltage output and a power converter, the power converter having a switching element electrically coupled to the rectified voltage output of the full-wave rectifier. An improvement of the illumination device includes a feedback circuit configured to determine an average current across the light-emitting diodes and to invert a signal representing the average current to provide a switching signal to the switching element such that, for a range of operating points, increasing a current drawn into the power converter will decrease LED power and decreasing the current drawn into the power converter will increase LED power. |
申请公布号 |
WO2011005579(A3) |
申请公布日期 |
2011.04.07 |
申请号 |
WO2010US39678 |
申请日期 |
2010.06.23 |
申请人 |
ALTAIR ENGINEERING, INC.;PALAZZOLO, FRANCIS;IVEY, JOHN |
发明人 |
PALAZZOLO, FRANCIS;IVEY, JOHN |
分类号 |
H05B37/02 |
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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