公开(公告)号：US20070152598A1

公开(公告)日：2007-07-05

申请号：US11490481

申请日：2006-07-20

Applicant: Veniamin Pak

Inventor： Veniamin Pak

IPC: H01K1/62 ,  H01J13/46 ,  H01J17/34 ,  H01J19/78 ,  H01J23/16 ,  H01J29/96 ,  H01J7/44

CPC classification number: H05B41/245 ,  H05B41/2827 ,  H05B41/2988 ,  H05B41/36 ,  Y10S315/04

Abstract: A reliable and efficient circuit for lighting a discharge lamp is described. An inverter accepts a direct current supply voltage and outputs an alternating current lamp voltage to drive the discharge lamp at a relatively high frequency. In one embodiment, the inverter includes semiconductor switches in a full-bridge configuration, a transformer feedback circuit to control the semiconductor switches, and a series L-C resonant circuit. In one embodiment, the inverter includes semiconductor switches in a half-bridge configuration, a transformer feedback circuit to control the semiconductor switches, and a series L-C resonant circuit. The inverter can drive multiple discharge lamps in a parallel configuration. A bypass circuit can also be coupled across a cathode of the discharge lamp to extend the life of the discharge lamp. The bypass circuit activates when a lamp cathode wears out.

Abstract translation: 描述了用于点燃放电灯的可靠和有效的电路。 逆变器接受直流电源电压并输出交流灯电压以相对较高的频率驱动放电灯。 在一个实施例中，逆变器包括全桥配置的半导体开关，用于控制半导体开关的变压器反馈电路和串联L-C谐振电路。 在一个实施例中，逆变器包括半桥配置的半导体开关，用于控制半导体开关的变压器反馈电路和串联L-C谐振电路。 逆变器可以并联配置驱动多个放电灯。 旁路电路也可以跨越放电灯的阴极耦合以延长放电灯的寿命。 当灯阴极磨损时，旁路电路激活。