<p>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.</p>
申请公布号
WO2008084358(A1)
申请公布日期
2008.07.17
申请号
WO2007IB55300
申请日期
2007.12.21
申请人
ACCESS BUSINESS GROUP INTERNATIONAL LLC;BAARMAN, DAVID W.;MOLLEMA, SCOTT A.;STODDARD, RONALD L.;SCHWANNECKE, JOSHUA K.
发明人
BAARMAN, DAVID W.;MOLLEMA, SCOTT A.;STODDARD, RONALD L.;SCHWANNECKE, JOSHUA K.