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    • 4. 发明授权
    • Parallel lamps with instant program start electronic ballast
    • 平行灯具即时程序启动电子镇流器
    • US07193368B2
    • 2007-03-20
    • US10987472
    • 2004-11-12
    • Timothy ChenJames K. Skully
    • Timothy ChenJames K. Skully
    • H05B39/00H05B41/14H05B39/04H05B37/02
    • H05B41/295
    • In a current fed electronic ballast multiple lamps are operated in a parallel circuit arrangement. The ballast provides pre-heating to the cathodes of the lamps for a period of time before an open circuit voltage is ramped up to the preferred starting voltage of the lamps. An open circuit voltage controller times coordinates the pre-heating and the operating voltage. After the pre-heating phase, current is removed from the cathodes of the lamps so that electricity is not wasted to the cathodes while the lamps are lit. A single switch is used to switch cathode pre-heating on and off, regardless of how many lamps the ballast operates. A decoupling array of diodes allows the single switch to coordinate pre-heating to all the lamps.
    • 在当前馈入的电子镇流器中,多个灯以并联电路布置操作。 镇流器在开路电压斜坡上升到灯的优选启动电压之前的一段时间内向灯的阴极提供预热。 开路电压控制器时间协调预热和工作电压。 在预热阶段之后,从灯的阴极去除电流,使得在点燃灯时电不会浪费到阴极。 单个开关用于开启和关闭阴极预热,无论镇流器操作多少灯。 二极管的去耦阵列允许单个开关将所有灯的预热协调。
    • 8. 发明授权
    • Parallel transformer with output side electrical decoupling
    • 并联变压器,输出侧电去耦
    • US07948191B2
    • 2011-05-24
    • US12252759
    • 2008-10-16
    • Timothy ChenJames K. SkullyHaiyan Wang
    • Timothy ChenJames K. SkullyHaiyan Wang
    • H05B41/36
    • H05B41/2827
    • A higher power package is provided in a smaller package by providing at least first and second magnetics in parallel in first and second transformers. To limit degrading performance associated with circulating current between the two transformers, the transformers are electrically decoupled. In a preferred embodiment, the circuit includes parallel primary and secondary windings of the transformer that are decoupled electrically on an output side. Particularly, diodes are provided in a preheat portion of the circuit so that once the preheat phase is terminated, the diodes prevent current flow in one direction through the preheat portion of the circuit.
    • 通过在第一和第二变压器中平行地提供至少第一和第二磁体,在较小的封装中提供较高的功率封装。 为了限制与两个变压器之间的循环电流相关的降级性能,变压器被电分离。 在优选实施例中,电路包括在输出侧电耦合的并联的变压器的初级和次级绕组。 特别地,二极管设置在电路的预热部分中,使得一旦预热相终止,二极管防止电流在一个方向上流过电路的预热部分。
    • 9. 发明授权
    • Single stage HID electronic ballast
    • 单级HID电子镇流器
    • US06841951B2
    • 2005-01-11
    • US10064005
    • 2002-06-04
    • Timothy ChenJames K. Skully
    • Timothy ChenJames K. Skully
    • H05B41/288H05B41/16G05F1/00
    • H05B41/2885Y02B20/202
    • An HID ballast, is powered by a power source, to control operation of a load. The HID ballast includes a switching network connected to a first bus and a second bus, and is configured to output a high-frequency voltage signal. A bridge converter section has a first leg including first and second series connected bridge diodes, and a second leg including third and fourth series connected bridge diodes. Each leg is connected to the first bus and the second bus and is configured to receive an input signal from the power source and to convert the input signal into a form usable by the switching section. The bridge converter section is integrated with the switching section to provide the usable signal to the switching section, and to contribute to the operation of the switching section. By this design, the HID ballast is defined as a single-stage ballast device.
    • HID镇流器由电源供电,以控制负载的运行。 HID镇流器包括连接到第一总线和第二总线的开关网络,并且被配置为输出高频电压信号。 桥式转换器部分具有包括第一和第二串联连接的桥二极管的第一支路,以及包括第三和第四串联连接的桥二极管的第二支路。 每个支路连接到第一总线和第二总线,并被配置为从电源接收输入信号并将输入信号转换成可由切换部分使用的形式。 桥转换器部分与开关部分集成以向切换部分提供可用信号,并有助于开关部分的操作。 通过这种设计,HID镇流器被定义为单级镇流器。