公开(公告)号：US08575864B2

公开(公告)日：2013-11-05

申请号：US13556690

申请日：2012-07-24

申请人： Tiesheng Yan ,  Youling Li ,  Feng Lin ,  Xinhe Su ,  Ching-Chuan Kuo

发明人： Tiesheng Yan ,  Youling Li ,  Feng Lin ,  Xinhe Su ,  Ching-Chuan Kuo

IPC分类号： H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  G05F1/00 ,  H05B39/02 ,  H05B41/16 ,  H05B41/24 ,  H05B37/00 ,  H05B39/00 ,  H05B41/00

摘要： A controller for controlling power to a light source includes a first sensing pin, a second sensing pin, a third sensing pin, and a driving pin. The first sensing pin receives a first signal indicating an instant current flowing through an energy storage element. The second sensing pin receives a second signal indicating an average current flowing through the energy storage element. The third sensing pin receives a third signal indicating whether the instant current decreases to a predetermined current level. The driving pin provides a driving signal to a switch to control an average current flowing through the light source to a target current level. The driving signal is generated based on one or more signals selected from the first signal, the second signal and the third signal.

公开(公告)号：US20080191557A1

公开(公告)日：2008-08-14

申请号：US11906251

申请日：2007-10-01

申请人： Stefan Maireanu ,  Alex Hartular ,  Chun Lu ,  Jianping Xu ,  Xinhe Su ,  Xiaodong Wang

发明人： Stefan Maireanu ,  Alex Hartular ,  Chun Lu ,  Jianping Xu ,  Xinhe Su ,  Xiaodong Wang

IPC分类号： H02J7/00 ,  H02J7/02

CPC分类号： H02M3/156 ,  H02M2001/0045 ,  Y10T307/625

摘要： A power supply system can include a primary power supply coupled to an output, and a secondary power supply coupled to the output. The primary power supply provides power to the output when a voltage level of the secondary power supply is less than a first predetermined level. The secondary power supply provides power to the output when the voltage level of the secondary power supply is greater than the first predetermined level. The secondary power supply not only provides power to the output, but also charges the primary power supply when the voltage level of the secondary power supply is greater than a second predetermined level that is greater than the first predetermined level.

摘要翻译： 电源系统可以包括耦合到输出的主电源以及耦合到输出的次电源。 当次级电源的电压电平小于第一预定电平时，主电源为输出提供电力。 当次级电源的电压电平大于第一预定电平时，次级电源为输出提供电力。 次级电源不仅为输出提供电力，而且当二次电源的电压电平大于大于第一预定电平的第二预定电平时对主电源充电。

公开(公告)号：US20110133662A1

公开(公告)日：2011-06-09

申请号：US12761681

申请日：2010-04-16

申请人： Tiesheng YAN ,  Youling LI ,  Feng LIN ,  Xinhe SU ,  Ching-Chuan KUO

发明人： Tiesheng YAN ,  Youling LI ,  Feng LIN ,  Xinhe SU ,  Ching-Chuan KUO

IPC分类号： H05B37/02

CPC分类号： H05B37/02 ,  H05B33/0815

摘要： A driving circuit includes a first inductor coupled in series with a light source for providing power to the light source. A controller coupled to the first inductor can control a switch coupled to the first inductor, thereby controlling a current flowing through the first inductor. A current sensor coupled to the first inductor can provide a first signal indicative of the current flowing through the first inductor, regardless of whether the switch is on or off. The switch is controlled according to the first signal. A second inductor magnetically coupled to the first inductor is also electrically coupled to the first inductor via a common node between the switch and the first inductor for providing a reference ground for the controller. The reference ground is different from the ground of the driving circuit.

摘要翻译： 驱动电路包括与用于向光源提供电力的光源串联耦合的第一电感器。 耦合到第一电感器的控制器可以控制耦合到第一电感器的开关，从而控制流过第一电感器的电流。 耦合到第一电感器的电流传感器可以提供指示流过第一电感器的电流的第一信号，而不管开关是开或关。 开关根据第一个信号进行控制。 磁耦合到第一电感器的第二电感器也经由开关和第一电感器之间的公共节点电耦合到第一电感器，以提供用于控制器的参考地。 参考地不同于驱动电路的地面。

公开(公告)号：US20100320979A1

公开(公告)日：2010-12-23

申请号：US12487355

申请日：2009-06-18

申请人： Chun LU ,  Luyang LUO ,  Feng SHI ,  Xinhe SU

发明人： Chun LU ,  Luyang LUO ,  Feng SHI ,  Xinhe SU

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M2001/0009

摘要： A current control system includes a first switch, a second switch, and a controller. The second switch is coupled in parallel with the first switch and operable for providing a feedback signal indicative of a current flowing through the first switch. The feedback signal is determined by a width-to-length ratio of the first switch and a width-to-length ratio of the second switch. In addition, the controller is coupled to the first and second switches and operable for adjusting the current according to the feedback signal.

摘要翻译： 电流控制系统包括第一开关，第二开关和控制器。 第二开关与第一开关并联耦合，并且可操作以提供指示流过第一开关的电流的反馈信号。 反馈信号由第一开关的宽度比和第二开关的宽度与长度之比确定。 此外，控制器耦合到第一和第二开关，并且可操作用于根据反馈信号调整电流。

公开(公告)号：US20090066161A1

公开(公告)日：2009-03-12

申请号：US12009466

申请日：2008-01-18

申请人： Chun Lu ,  Xinhe Su

发明人： Chun Lu ,  Xinhe Su

IPC分类号： H02J1/00 ,  H02J7/00 ,  H02H3/08

CPC分类号： H02J7/0031 ,  H02J7/0068 ,  Y10T307/615 ,  Y10T307/625 ,  Y10T307/647 ,  Y10T307/696 ,  Y10T307/724 ,  Y10T307/729

摘要： A power management system includes a power management unit (PMU) and a current sensor. The PMU is operable for controlling a first power source and a second power source. The second power source is operable for being charged by the first power source via a charging path. The current sensor has a first terminal coupled to the first power source and the second power source and has a second terminal coupled to the second power source via the charging path. The current sensor is operable for sensing a first current flowing from the first power source through the current sensor and for sensing a second current flowing from the second power source through the current sensor.

摘要翻译： 电源管理系统包括电源管理单元（PMU）和电流传感器。 PMU可操作用于控制第一电源和第二电源。 第二电源可操作以经由充电路径被第一电源充电。 电流传感器具有耦合到第一电源和第二电源的第一端子，并且具有经由充电路径耦合到第二电源的第二端子。 电流传感器可操作用于感测从第一电源流过电流传感器的第一电流并且用于感测从第二电源流过电流传感器的第二电流。

公开(公告)号：US08664895B2

公开(公告)日：2014-03-04

申请号：US13556690

申请日：2012-07-24

申请人： Tiesheng Yan ,  Youling Li ,  Feng Lin ,  Xinhe Su ,  Ching-Chuan Kuo

发明人： Tiesheng Yan ,  Youling Li ,  Feng Lin ,  Xinhe Su ,  Ching-Chuan Kuo

IPC分类号： H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  G05F1/00 ,  H05B39/02 ,  H05B41/16 ,  H05B41/24 ,  H05B37/00 ,  H05B39/00 ,  H05B41/00

CPC分类号： H05B37/02 ,  H05B33/0815

摘要： A controller for controlling power to a light source includes a first sensing pin, a second sensing pin, a third sensing pin, and a driving pin. The first sensing pin receives a first signal indicating an instant current flowing through an energy storage element. The second sensing pin receives a second signal indicating an average current flowing through the energy storage element. The third sensing pin receives a third signal indicating whether the instant current decreases to a predetermined current level. The driving pin provides a driving signal to a switch to control an average current flowing through the light source to a target current level. The driving signal is generated based on one or more signals selected from the first signal, the second signal and the third signal.

摘要翻译： 用于控制光源的功率的控制器包括第一感测针，第二感测针，第三感测针和驱动针。 第一感测引脚接收指示流过能量存储元件的瞬时电流的第一信号。 第二感测针接收指示流过能量存储元件的平均电流的第二信号。 第三感测针接收指示瞬时电流是否降低到预定电流电平的第三信号。 驱动引脚向开关提供驱动信号，以将流过光源的平均电流控制到目标电流水平。 基于从第一信号，第二信号和第三信号中选择的一个或多个信号产生驱动信号。

公开(公告)号：US20120299502A1

公开(公告)日：2012-11-29

申请号：US13556690

申请日：2012-07-24

申请人： Tiesheng YAN ,  Youling LI ,  Feng LIN ,  Xinhe SU ,  Ching-Chuan KUO

发明人： Tiesheng YAN ,  Youling LI ,  Feng LIN ,  Xinhe SU ,  Ching-Chuan KUO

IPC分类号： H05B37/02

CPC分类号： H05B37/02 ,  H05B33/0815

摘要： A controller for controlling power to a light source includes a first sensing pin, a second sensing pin, a third sensing pin, and a driving pin. The first sensing pin receives a first signal indicating an instant current flowing through an energy storage element. The second sensing pin receives a second signal indicating an average current flowing through the energy storage element. The third sensing pin receives a third signal indicating whether the instant current decreases to a predetermined current level. The driving pin provides a driving signal to a switch to control an average current flowing through the light source to a target current level. The driving signal is generated based on one or more signals selected from the first signal, the second signal and the third signal.

摘要翻译： 用于控制光源的功率的控制器包括第一感测针，第二感测针，第三感测针和驱动针。 第一感测引脚接收指示流过能量存储元件的瞬时电流的第一信号。 第二感测针接收指示流过能量存储元件的平均电流的第二信号。 第三感测针接收指示瞬时电流是否降低到预定电流电平的第三信号。 驱动引脚向开关提供驱动信号，以将流过光源的平均电流控制到目标电流水平。 基于从第一信号，第二信号和第三信号中选择的一个或多个信号产生驱动信号。

公开(公告)号：US07977911B2

公开(公告)日：2011-07-12

申请号：US11906251

申请日：2007-10-01

申请人： Stefan Maireanu ,  Alex Hartular ,  Chun Lu ,  Jianping Xu ,  Xinhe Su ,  Xiaodong Wang

发明人： Stefan Maireanu ,  Alex Hartular ,  Chun Lu ,  Jianping Xu ,  Xinhe Su ,  Xiaodong Wang

IPC分类号： H02J7/00

CPC分类号： H02M3/156 ,  H02M2001/0045 ,  Y10T307/625

摘要： A power supply system can include a primary power supply coupled to an output, and a secondary power supply coupled to the output. The primary power supply provides power to the output when a voltage level of the secondary power supply is less than a first predetermined level. The secondary power supply provides power to the output when the voltage level of the secondary power supply is greater than the first predetermined level. The secondary power supply not only provides power to the output, but also charges the primary power supply when the voltage level of the secondary power supply is greater than a second predetermined level that is greater than the first predetermined level.

摘要翻译： 电源系统可以包括耦合到输出的主电源以及耦合到输出的次电源。 当次级电源的电压电平小于第一预定电平时，主电源为输出提供电力。 当次级电源的电压电平大于第一预定电平时，次级电源为输出提供电力。 次级电源不仅为输出提供电力，而且当二次电源的电压电平大于大于第一预定电平的第二预定电平时对主电源充电。

公开(公告)号：US07868483B2

公开(公告)日：2011-01-11

申请号：US12009466

申请日：2008-01-18

申请人： Chun Lu ,  Xinhe Su

发明人： Chun Lu ,  Xinhe Su

IPC分类号： H02J1/00

CPC分类号： H02J7/0031 ,  H02J7/0068 ,  Y10T307/615 ,  Y10T307/625 ,  Y10T307/647 ,  Y10T307/696 ,  Y10T307/724 ,  Y10T307/729

摘要： A power management system includes a power management unit (PMU) and a current sensor. The PMU is operable for controlling a first power source and a second power source. The second power source is operable for being charged by the first power source via a charging path. The current sensor has a first terminal coupled to the first power source and the second power source and has a second terminal coupled to the second power source via the charging path. The current sensor is operable for sensing a first current flowing from the first power source through the current sensor and for sensing a second current flowing from the second power source through the current sensor.

摘要翻译： 电源管理系统包括电源管理单元（PMU）和电流传感器。 PMU可操作用于控制第一电源和第二电源。 第二电源可操作以经由充电路径被第一电源充电。 电流传感器具有耦合到第一电源和第二电源的第一端子，并且具有经由充电路径耦合到第二电源的第二端子。 电流传感器可操作用于感测从第一电源流过电流传感器的第一电流并且用于感测从第二电源流过电流传感器的第二电流。

公开(公告)号：US08339067B2

公开(公告)日：2012-12-25

申请号：US13100434

申请日：2011-05-04

申请人： Yung Lin Lin ,  Ching Chuan Kuo ,  Tiesheng Yan ,  Xinhe Su

发明人： Yung Lin Lin ,  Ching Chuan Kuo ,  Tiesheng Yan ,  Xinhe Su

IPC分类号： H05B37/02

CPC分类号： H05B33/0845 ,  H05B33/0818 ,  Y02B20/348

摘要： A controller for controlling dimming of a light-emitting diode (LED) light source provides a pulse signal by comparing a sensing signal indicative of a current flowing through the LED light source to a reference signal. The controller controls the current through the LED light source according to the pulse signal during a first state of a pulse-width modulation signal and cutting off the current through the LED light source during a second state of the pulse-width modulation signal. The controller receives a dimming request signal indicative of an operation of a power switch coupled between an AC power source and a bridge rectifier and adjusts both a level of the reference signal and a duty cycle of the pulse-width modulation signal based on the dimming request signal.

摘要翻译： 用于控制发光二极管（LED）光源的调光的控制器通过将表示流过LED光源的电流的感测信号与参考信号进行比较来提供脉冲信号。 在脉冲宽度调制信号的第一状态期间，控制器根据脉冲信号控制通过LED光源的电流，并且在脉冲宽度调制信号的第二状态期间切断通过LED光源的电流。 控制器接收指示耦合在AC电源和桥式整流器之间的功率开关的操作的调光请求信号，并且基于调光请求调节参考信号的电平和脉宽调制信号的占空比 信号。