发明名称 |
Method of delaying and sequencing the starting of inverters that ballast lamps |
摘要 |
An inverter circuit for ballasting a gas discharge lamp having a delay circuit designed to delay regenerative control of the inverter switches until a d.c. bus has attained steady-state operating d.c. voltage. The inverter circuit includes a drive control circuit for inducing an a.c. load current. The inverter circuit includes first and second complementary switches serially connected between the bus and a reference bus. The switches are connected together at a common node through which the a.c. load current flows. A driving inductor is connected at one end to the common node and operatively connected at the remaining end to a control node. A load circuit includes a resonant inductor connected at one end to the common node, with the resonant inductor mutually coupled to the driving inductor. A resonant capacitor is serially connected between the remaining end of the resonant inductor and the reference bus. The gas discharge lamp is serially connected with a d.c. blocking capacitor across the resonant capacitor. A delay circuit, comprising a serially connected resistor and capacitor is connected across the drive control circuit.
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申请公布号 |
US6756746(B2) |
申请公布日期 |
2004.06.29 |
申请号 |
US20020247796 |
申请日期 |
2002.09.19 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
NERONE LOUIS R.;KACHMARIK DAVID J.;COSBY, JR. MELVIN C. |
分类号 |
H05B41/282;(IPC1-7):G05F1/00 |
主分类号 |
H05B41/282 |
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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