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    • 5. 发明授权
    • Electrical circuit with voltage multiplier for facilitating ignition of a gas discharge lamp
    • 具有电压倍增器的电路,用于促进气体放电灯的点燃
    • US07460379B2
    • 2008-12-02
    • US11469945
    • 2006-09-05
    • Xiaoli YaoRajendra Kumar PokharnaViktor Karoly VargaChao YangYingqi Zhang
    • Xiaoli YaoRajendra Kumar PokharnaViktor Karoly VargaChao YangYingqi Zhang
    • H02M3/18H01J11/04
    • H05B41/2881
    • An ignition circuit and method, as may be used for igniting a gas discharge lamp, are provided. The circuit includes a voltage multiplier circuit connected to receive a signal corresponding to a DC bus voltage level from a rectifier circuit. The voltage multiplier circuit includes first and second voltage storing circuits configured to each respectively store a voltage level corresponding to a first multiple of the DC bus voltage level (e.g., at least twice the DC bus voltage level). The voltage multiplier circuit further includes a peak voltage holding circuit connected to the first and second voltage storing circuits to accumulate a voltage level corresponding to a second multiple of the DC bus voltage level (e.g., at least four times the DC bus voltage level). The circuit further includes an ignition module having a transformer selectively connected by way of a switch to the voltage multiplier circuit through a primary winding to receive the voltage accumulated at the peak voltage holding circuit, and thereby generate an ignition pulse voltage applied to the lamp through a secondary winding of the transformer.
    • 提供了可以用于点燃气体放电灯的点火电路和方法。 电路包括一个电压倍增器电路,连接成从整流电路接收对应于直流总线电压电平的信号。 电压倍增器电路包括第一和第二电压存储电路,其被配置为分别存储与DC总线电压电平的第一倍数相对应的电压电平(例如,至少是DC总线电压电平的两倍)。 电压倍增器电路还包括连接到第一和第二电压存储电路的峰值电压保持电路,以累积与DC总线电压电平的第二倍数相对应的电压电平(例如,至少是DC总线电压电平的四倍)。 该电路还包括点火模块,其具有通过初级绕组选择性地连接到电压倍增器电路的变压器,以接收在峰值电压保持电路处积累的电压,从而产生施加到灯的点火脉冲电压 变压器的次级绕组。