公开(公告)号：US20060284575A1

公开(公告)日：2006-12-21

申请号：US11450510

申请日：2006-06-09

申请人： Li-Ho Shen ,  Yu-Lin Liu

发明人： Li-Ho Shen ,  Yu-Lin Liu

IPC分类号： H05B39/00

CPC分类号： H05B41/2822 ,  H05B41/2855

摘要： A lamp current of a lamp with at least one high-voltage end is detected using a current detector connected to the high-voltage end of the lamp. A feedback signal according to the lamp current is generated, and a drive voltage to the lamp is adjusted according to the feedback signal.

摘要翻译： 使用连接到灯的高压端的电流检测器来检测具有至少一个高压端的灯的灯电流。 产生根据灯电流的反馈信号，根据反馈信号调节灯的驱动电压。

公开(公告)号：US20100156306A1

公开(公告)日：2010-06-24

申请号：US12603660

申请日：2009-10-22

申请人： LI-HO SHEN ,  CHIEN-HUNG CHEN

发明人： LI-HO SHEN ,  CHIEN-HUNG CHEN

IPC分类号： H05B41/36

CPC分类号： H05B41/2827 ,  G09G3/3406 ,  G09G2320/064 ,  G09G2330/021

摘要： A backlight driving system driving a plurality of lamp groups comprises a phase controller, a pulse width module (PWM) controller, a plurality of power stages, a plurality of transformers and a plurality of switch circuits. The phase controller generates a plurality of phase signals. The PWM controller generates PWM signals.The power stages receive and convert direct current (DC) signals from an external power source to alternative current (AC) signals under the control of the PWM signals. The transformers receive and boost up the AC signals from the power stages to drive the lamp groups. The switch circuits alternatively transmit the DC power signals from the external power source and the PWM signals from the PWM controller to the power stages so as to control outputs of the power stages.

摘要翻译： 驱动多个灯组的背光驱动系统包括相位控制器，脉冲宽度模块（PWM）控制器，多个功率级，多个变压器和多个开关电路。 相位控制器产生多个相位信号。 PWM控制器产生PWM信号。 功率级在PWM信号的控制下接收并将直流（DC）信号从外部电源转换为替代电流（AC）信号。 变压器接收并提升来自功率级的交流信号，以驱动灯组。 开关电路将来自外部电源的DC电力信号和来自PWM控制器的PWM信号交替地发送到功率级，以便控制功率级的输出。

公开(公告)号：US08344650B2

公开(公告)日：2013-01-01

申请号：US12603660

申请日：2009-10-22

申请人： Li-Ho Shen ,  Chien-Hung Chen

发明人： Li-Ho Shen ,  Chien-Hung Chen

IPC分类号： H05B37/02

CPC分类号： H05B41/2827 ,  G09G3/3406 ,  G09G2320/064 ,  G09G2330/021

摘要： A backlight driving system driving a plurality of lamp groups comprises a phase controller, a pulse width module (PWM) controller, a plurality of power stages, a plurality of transformers and a plurality of switch circuits. The phase controller generates a plurality of phase signals. The PWM controller generates PWM signals. The power stages receive and convert direct current (DC) signals from an external power source to alternative current (AC) signals under the control of the PWM signals. The transformers receive and boost up the AC signals from the power stages to drive the lamp groups. The switch circuits alternatively transmit the DC power signals from the external power source and the PWM signals from the PWM controller to the power stages so as to control outputs of the power stages.

摘要翻译： 驱动多个灯组的背光驱动系统包括相位控制器，脉冲宽度模块（PWM）控制器，多个功率级，多个变压器和多个开关电路。 相位控制器产生多个相位信号。 PWM控制器产生PWM信号。 功率级在PWM信号的控制下接收并将直流（DC）信号从外部电源转换为替代电流（AC）信号。 变压器接收并提升来自功率级的交流信号，以驱动灯组。 开关电路将来自外部电源的DC电力信号和来自PWM控制器的PWM信号交替地发送到功率级，以便控制功率级的输出。

公开(公告)号：US07847493B2

公开(公告)日：2010-12-07

申请号：US11450510

申请日：2006-06-09

申请人： Li-Ho Shen ,  Yu-Lin Liu

发明人： Li-Ho Shen ,  Yu-Lin Liu

IPC分类号： G05F1/00 ,  H05B37/00

CPC分类号： H05B41/2822 ,  H05B41/2855

摘要： A lamp current of a lamp with at least one high-voltage end is detected using a current detector connected to the high-voltage end of the lamp. A feedback signal according to the lamp current is generated, and a drive voltage to the lamp is adjusted according to the feedback signal.

摘要翻译： 使用连接到灯的高压端的电流检测器来检测具有至少一个高压端的灯的灯电流。 产生根据灯电流的反馈信号，根据反馈信号调节灯的驱动电压。