发明名称 |
INDUCTIVELY-POWERED GAS DISCHARGE LAMP CIRCUIT |
摘要 |
An inductively powered gas discharge lamp assembly having a secondary circuit with starter circuitry that provides pre-heating when power is supplied to the secondary circuit at a pre-heat frequency and that provides normal operation when power is supplied to the secondary circuit at an operating frequency. In one embodiment, the starter circuitry includes a pre-heat capacitor connected between the lamp electrodes and an operating capacitor located between the secondary coil and the lamp. The pre-heat capacitor is selected so that the electrical flow path through the pre-heat capacitor has a lesser impedance than the electrical flow path through the gas of the lamp when power is applied to the secondary circuit at the pre-heat frequency, and so that the electrical flow path through the pre-heat capacitor has a greater impedance than the electrical flow path through the gas when power is applied the operating frequency. The primary circuit may include a tank circuit for which the resonant frequency can be adjusted to match the pre-heat frequency and the operating frequency.
|
申请公布号 |
US2008164817(A1) |
申请公布日期 |
2008.07.10 |
申请号 |
US20070620840 |
申请日期 |
2007.01.08 |
申请人 |
ACCESS BUSINESS GROUP INTERNATIONAL LLC |
发明人 |
BAARMAN DAVID W.;MOLLEMA SCOTT A.;STODDARD RONALD L.;SCHWANNECKE JOSHUA K. |
分类号 |
H01J7/24;H05B37/00 |
主分类号 |
H01J7/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|