公开(公告)号：US20100181928A1

公开(公告)日：2010-07-22

申请号：US12603661

申请日：2009-10-22

申请人： CHI-HSIUNG LEE ,  YU-HSIAO CHAO ,  HUNG-YI CHEN

发明人： CHI-HSIUNG LEE ,  YU-HSIAO CHAO ,  HUNG-YI CHEN

IPC分类号： H05B41/36

CPC分类号： H05B41/282 ,  Y02B20/183

摘要： A multi-lamp driving circuit for driving a plurality of lamp groups includes an inversion circuit configured to drive the plurality of lamp groups and a current balance circuit electrically connected between the inversion circuit and the plurality of lamp groups. The current balance circuit includes a plurality of transformers, each including a first magnetic loop composed of a first primary winding and a first secondary winding and a second magnetic loop composed of a second primary winding and a second secondary winding. Numbers of turns of the second primary winding and the second secondary winding of each of the plurality of transformers are equivalent, and numbers of turns of the first primary winding and the first secondary winding of each of the plurality of transformers are equivalent.

摘要翻译： 用于驱动多个灯组的多灯驱动电路包括：被配置为驱动多个灯组的反相电路和电连接在反转电路和多个灯组之间的电流平衡电路。 电流平衡电路包括多个变压器，每个变压器包括由第一初级绕组和第一次级绕组组成的第一磁环和由第二初级绕组和第二次级绕组组成的第二磁路。 多个变压器中的每一个的第二初级绕组和第二次级绕组的匝数相等，并且多个变压器中的每一个的第一初级绕组和第一次级绕组的匝数相等。

公开(公告)号：US20100019694A1

公开(公告)日：2010-01-28

申请号：US12277228

申请日：2008-11-24

申请人： HUNG-YI CHEN ,  CHI-HSIUNG LEE ,  YU-HSIAO CHAO

发明人： HUNG-YI CHEN ,  CHI-HSIUNG LEE ,  YU-HSIAO CHAO

IPC分类号： H05B41/36

CPC分类号： H05B41/2828

摘要： A discharge lamp driving device includes a power stage circuit, a transformer circuit, a control circuit, a feedback circuit and a lamp protection circuit. The lamp protection circuit includes a current sensing circuit, a reference voltage selecting circuit, a comparing circuit and a protection signal generating circuit. The current sensing circuit senses current signals flowing through the lamps, and transforms the current signals to voltage signals. The reference voltage selecting circuit is connected to the current sensing circuit. The comparing circuit is connected to the current sensing circuit and the comparing circuit. The protection signal generating circuit is connected between the comparing circuit and the control circuit. The control circuit is connected to the comparing circuit.

摘要翻译： 放电灯驱动装置包括功率级电路，变压器电路，控制电路，反馈电路和灯保护电路。 灯保护电路包括电流检测电路，参考电压选择电路，比较电路和保护信号发生电路。 电流感测电路感测流过灯的电流信号，并将电流信号转换成电压信号。 参考电压选择电路连接到电流检测电路。 比较电路连接到电流检测电路和比较电路。 保护信号发生电路连接在比较电路和控制电路之间。 控制电路连接到比较电路。

公开(公告)号：US20120188801A1

公开(公告)日：2012-07-26

申请号：US13072764

申请日：2011-03-27

申请人： CHI-HSIUNG LEE ,  CHIEN-CHIEH TAI ,  HUNG-YI CHEN

发明人： CHI-HSIUNG LEE ,  CHIEN-CHIEH TAI ,  HUNG-YI CHEN

IPC分类号： H02M3/335

CPC分类号： H02M3/33561

摘要： A flyback power system includes a rectifier and filter circuit, a pulse width modulation (PWM) controller, a feedback circuit, a master converter circuit, a slave converter circuit, and a slave converter control circuit. The master converter circuit continuously converts power signals from the rectifier and filter circuit into first direct current (DC) power signals to drive load according to PWM signals of the PWM controller when the flyback power system powered on. The slave converter circuit converts the power signals from the rectifier and filter circuit into second DC power signals according to the PWM signals, and superposes the second DC power signals to the first DC power signals to drive the load when the load is heavy. The slave converter control circuit detects whether the load is heavy, and controls the PWM signals whether to input into the slave converter circuit according to a state of the load.

摘要翻译： 反激式电力系统包括整流器和滤波器电路，脉冲宽度调制（PWM）控制器，反馈电路，主转换器电路，从属转换器电路和从转换器控制电路。 当反激式电源系统通电时，主变流器电路将来自整流器和滤波电路的功率信号连续地转换为第一直流（DC）功率信号，以根据PWM控制器的PWM信号驱动负载。 从转换器电路根据PWM信号将来自整流器和滤波电路的功率信号转换为第二直流电源信号，并将第二直流电源信号叠加到第一直流电源信号，以在负载较重时驱动负载。 从变换器控制电路检测负载是否很重，并根据负载状态控制PWM信号是否输入到从变换器电路。