公开(公告)号：US08456094B2

公开(公告)日：2013-06-04

申请号：US13136383

申请日：2011-07-29

Applicant: Pei-Cheng Huang ,  Kuo-Chi Liu ,  Ming-Hsueh Lee ,  Shih-Hua Chien ,  Chao-Hua Wu

Inventor： Pei-Cheng Huang ,  Kuo-Chi Liu ,  Ming-Hsueh Lee ,  Shih-Hua Chien ,  Chao-Hua Wu

IPC: H05B37/00

CPC classification number: H05B33/089

Abstract: The present invention discloses a light emitting device open/short detection circuit, which is used for detecting at least one light emitting device string open/short. Each light emitting device string has a first end and a second end, wherein the first end is coupled to a voltage supply circuit to supply electrical power to the light emitting devices. The open/short detection circuit includes: an abnormal voltage detection circuit coupled to the light emitting device strings for receiving voltages of the second ends respectively and generating an abnormal voltage detection signal; a voltage setting circuit coupled to the abnormal voltage detection circuit for setting an abnormal reference level; and a determination circuit coupled to the voltage setting circuit. When the abnormal voltage detection signal is equal to or over the abnormal reference level, the determination circuit generates an open/short detection signal for an abnormal condition detected.

Abstract translation: 本发明公开了一种用于检测至少一个发光装置串开/短的发光装置开/短检测电路。 每个发光器件串具有第一端和第二端，其中第一端耦合到电压供应电路以向发光器件供电。 开/短检测电路包括：异常电压检测电路，耦合到发光器件串，用于分别接收第二端的电压并产生异常电压检测信号; 电压设定电路，与所述异常电压检测电路耦合，用于设定异常参考电平; 以及耦合到电压设置电路的确定电路。 当异常电压检测信号等于或超过异常参考电平时，确定电路产生检测到的异常状态的开/短检测信号。

公开(公告)号：US20110222314A1

公开(公告)日：2011-09-15

申请号：US13043790

申请日：2011-03-09

Applicant: KUO-CHI LIU ,  NAN-MING CHEN ,  YONG-CHIN LEE ,  MING-HSUEH LEE

Inventor： KUO-CHI LIU ,  NAN-MING CHEN ,  YONG-CHIN LEE ,  MING-HSUEH LEE

IPC: H02M3/24

CPC classification number: H02M3/335 ,  H02M3/156 ,  H02M2001/007

Abstract: A power supply includes an isolated power converter and a DC/DC converter. The isolated power converter includes a primary winding connected to a primary power stage, a secondary winding to generate a first output voltage, and an auxiliary winding at the primary side to generate a voltage signal proportional to the first output voltage to stabilize the first output voltage. The DC/DC converter converts the first output voltage into a second output voltage for supplying for a load.

Abstract translation: 电源包括隔离电源转换器和DC / DC转换器。 隔离式功率转换器包括连接到主功率级的初级绕组，产生第一输出电压的次级绕组和初级侧的辅助绕组，以产生与第一输出电压成比例的电压信号，以稳定第一输出电压 。 DC / DC转换器将第一输出电压转换成用于为负载提供的第二输出电压。

公开(公告)号：US20120293082A1

公开(公告)日：2012-11-22

申请号：US13136383

申请日：2011-07-29

Applicant: Pei-Cheng Huang ,  Kuo-Chi Liu ,  Ming-Hsueh Lee ,  Shih-Hua Chien ,  Chao-Hua Wu

Inventor： Pei-Cheng Huang ,  Kuo-Chi Liu ,  Ming-Hsueh Lee ,  Shih-Hua Chien ,  Chao-Hua Wu

IPC: H05B37/00

CPC classification number: H05B33/089

Abstract: The present invention discloses a light emitting device open/short detection circuit, which is used for detecting at least one light emitting device string open/short. Each light emitting device string has a first end and a second end, wherein the first end is coupled to a voltage supply circuit to supply electrical power to the light emitting devices. The open/short detection circuit includes: an abnormal voltage detection circuit coupled to the light emitting device strings for receiving voltages of the second ends respectively and generating an abnormal voltage detection signal; a voltage setting circuit coupled to the abnormal voltage detection circuit for setting an abnormal reference level; and a determination circuit coupled to the voltage setting circuit. When the abnormal voltage detection signal is equal to or over the abnormal reference level, the determination circuit generates an open/short detection signal for an abnormal condition detected.

Abstract translation: 本发明公开了一种用于检测至少一个发光装置串开/短的发光装置开/短检测电路。 每个发光器件串具有第一端和第二端，其中第一端耦合到电压供应电路以向发光器件供电。 开/短检测电路包括：异常电压检测电路，耦合到发光器件串，用于分别接收第二端的电压并产生异常电压检测信号; 电压设定电路，与所述异常电压检测电路耦合，用于设定异常参考电平; 以及耦合到电压设置电路的确定电路。 当异常电压检测信号等于或超过异常参考电平时，确定电路产生检测到的异常状态的开/短检测信号。