发明名称 |
SYSTEM AND METHOD INCLUDING SELF OSCILLATING FEEDBACK FOR ACOUSTIC OPERATION OF A DISCHARGE LAMP |
摘要 |
A system and method including self oscillating feedback for acoustic operation of a discharge lamp. The system includes a ballast configured to receive a modulation input and modulate a lamp power signal in accordance with the modulation input. A photodetector senses the optical output of the lamp to provide an electrical feedback to a feedback circuit. The feedback circuit filters the feedback to couple a portion thereof corresponding to a selected acoustic resonance mode of the lamp to the ballast as the modulation input thereby causing self--oscillation at the selected acoustic resonance mode.
|
申请公布号 |
CA2720902(A1) |
申请公布日期 |
2011.06.18 |
申请号 |
CA20102720902 |
申请日期 |
2010.11.12 |
申请人 |
OSRAM SYLVANIA INC. |
发明人 |
MOSKOWITZ, WARREN P.;OLSEN, JOSEPH A. |
分类号 |
H05B41/36;H01J61/38 |
主分类号 |
H05B41/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|