发明名称 |
Ballast for high pressure discharge lamp |
摘要 |
In a ballast circuit for supplying a high pressure discharge lamp and comprising an up-converter and a bridge circuit, the output voltage of the up-converter is controlled at a higher level immediately after the ignition of the lamp and at a lower level during stationary operation. Stabilization of the discharge immediately after ignition of the lamp and a relatively small power dissipation are both realized in this ballast circuit.
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申请公布号 |
US7154228(B2) |
申请公布日期 |
2006.12.26 |
申请号 |
US20040506404 |
申请日期 |
2004.09.01 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
VAN CASTEREN DOLF HENRICUS JOZEF;COUWENBERG WINSTON DONALD |
分类号 |
H05B37/02;H05B41/24;H05B41/282;H05B41/288;H05B41/38 |
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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