公开(公告)号：US6111365A

公开(公告)日：2000-08-29

申请号：US394865

申请日：1999-09-13

申请人： Grigoriy Mirskiy ,  Michael W. Bandel ,  Kent E. Crouse ,  Peter W. Shackle

发明人： Grigoriy Mirskiy ,  Michael W. Bandel ,  Kent E. Crouse ,  Peter W. Shackle

IPC分类号： H05B41/28 ,  H05B41/282 ,  H05B41/16

CPC分类号： H05B41/28 ,  H05B41/282 ,  Y02B20/183 ,  Y10S315/07

摘要： An electronic ballast includes a zener diode in series with the bulk capacitor of the ballast to provide a charging voltage for a small capacitor that powers a power factor correction circuit within the ballast. A SCR in parallel with the zener diode shuts off the zener diode after the power factor correction circuit begins operation.

摘要翻译： 电子镇流器包括与镇流器的体积电容器串联的齐纳二极管，以为为镇流器内的功率因数校正电路供电的小电容器提供充电电压。 与齐纳二极管并联的SCR在功率因数校正电路开始工作后关闭齐纳二极管。

公开(公告)号：US5973455A

公开(公告)日：1999-10-26

申请号：US79844

申请日：1998-05-15

申请人： Grigoriy Mirskiy ,  William L. Keith ,  Kent E. Crouse ,  Peter W. Shackle ,  Patrick J. Keegan ,  Ronald J. Bezdon

发明人： Grigoriy Mirskiy ,  William L. Keith ,  Kent E. Crouse ,  Peter W. Shackle ,  Patrick J. Keegan ,  Ronald J. Bezdon

IPC分类号： H05B41/295 ,  H05B41/36 ,  H05B37/02

CPC分类号： H05B41/36 ,  H05B41/295 ,  Y10S315/04 ,  Y10S315/07

摘要： An electronic ballast for a gas discharge lamp includes an AC to DC converter for changing alternating current at power line voltage to direct current and an inverter powered by the converter and having a series resonant, direct coupled output coupled to the lamp. The inverter includes an AC switch having a diode bridge defining an AC diagonal and a DC diagonal and a transistor connected across the DC diagonal. The primary winding of a filament transformer is connected across the AC diagonal of the bridge and the transistor is coupled to the microprocessor for controlling current through the primary winding. The microprocessor is programmed to close the AC switch while the lamp is starting and to open the switch after the lamp is started, thereby cutting off the filaments from a source of power and reducing the power consumed by the ballast during normal operation. A resistor in series with the transistor is used to detect filament resistance and provide an indication of lamp type.

摘要翻译： 用于气体放电灯的电子镇流器包括用于将电力线电压下的交流电流改变为直流电的AC至DC转换器和由转换器供电的具有耦合到灯的串联谐振的直接耦合输出的逆变器。 逆变器包括AC开关，其具有限定AC对角线和DC对角线的二极管桥和跨DC对角线连接的晶体管。 灯丝变压器的初级绕组连接在桥的AC对角线上，晶体管耦合到微处理器，用于控制通过初级绕组的电流。 微处理器被编程为在灯启动时闭合AC开关，并且在灯启动之后打开开关，从而将灯丝从电源切断，并降低正常操作期间镇流器消耗的功率。 与晶体管串联的电阻器用于检测灯丝电阻并提供灯类型的指示。