公开(公告)号：US20130147378A1

公开(公告)日：2013-06-13

申请号：US13450489

申请日：2012-04-19

Applicant: Ching-Ho CHOU ,  Tsung-Yu OU

Inventor： Ching-Ho CHOU ,  Tsung-Yu OU

IPC: H05B37/02

CPC classification number: H05B41/2821 ,  H05B41/2858 ,  Y02B20/186

Abstract: An electronic ballast for a light emitting load is provided, and includes a transformer module, a resonance module, a high-frequency push-pull inverter and a driving controller module. The high-frequency push-pull inverter includes a first switch component and a second switch component. The driving controller module is used for generating and providing an asymmetric driving waveform to the first switch component and the second switch component. The asymmetric driving waveform includes a first discharging waveform portion for discharging and turning off the first switch component, and also a second discharging waveform portion for discharging and turning off the second switch component. The first and second discharging waveform portions are different in current amplitudes and time spans.

Abstract translation: 提供了用于发光负载的电子镇流器，并且包括变压器模块，谐振模块，高频推挽逆变器和驱动控制器模块。 高频推挽逆变器包括第一开关元件和第二开关元件。 驱动控制器模块用于产生并向第一开关部件和第二开关部件提供非对称驱动波形。 非对称驱动波形包括用于放电和关断第一开关部件的第一放电波形部分，以及用于放电和关断第二开关部件的第二放电波形部分。 第一和第二放电波形部分的电流幅度和时间跨度不同。

公开(公告)号：US20120013268A1

公开(公告)日：2012-01-19

申请号：US13092665

申请日：2011-04-22

Applicant: Ching-Ho CHOU ,  Chia-Jung Nian

Inventor： Ching-Ho CHOU ,  Chia-Jung Nian

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H02M1/4225 ,  H02M2001/0067 ,  Y02B70/126

Abstract: A lighting device is provided, having at least one light emitting diode module, a power factor correction circuit, a non-regulated isolation DC to DC converter and at least one regulated non-isolation DC to DC converter. The power factor correction circuit performs a power factor correction on an AC power source and outputs a corrected DC voltage. The non-regulated isolation DC to DC converter generates an output voltage in a predetermined voltage range according to the corrected DC voltage, wherein the non-regulated isolation DC to DC converter is an open-loop controlled buck DC to DC converter. The regulated non-isolation DC to DC converter generates a fixed current or a fixed voltage according to the output voltage output from the non-regulated isolation DC to DC converter, thereby driving the light emitting diode module.

Abstract translation: 提供一种照明装置，具有至少一个发光二极管模块，功率因数校正电路，非调节隔离DC-DC转换器和至少一个调节非隔离DC-DC转换器。 功率因数校正电路对交流电源进行功率因数校正，输出校正后的直流电压。 非调节隔离DC-DC转换器根据校正的DC电压产生预定电压范围内的输出电压，其中非调节隔离DC-DC转换器是开环控制降压DC-DC转换器。 调节非隔离DC-DC转换器根据从非调节隔离DC-DC转换器输出的输出电压产生固定电流或固定电压，从而驱动发光二极管模块。

公开(公告)号：US20130207558A1

公开(公告)日：2013-08-15

申请号：US13547213

申请日：2012-07-12

Applicant: Lizhi XU ,  Weiqiang ZHANG ,  Jianping YING ,  Ching-Ho CHOU ,  Hsiang-Chen WU

Inventor： Lizhi XU ,  Weiqiang ZHANG ,  Jianping YING ,  Ching-Ho CHOU ,  Hsiang-Chen WU

IPC: H05B37/02 ,  H05B37/00

CPC classification number: H05B33/0815 ,  H05B33/0851 ,  Y02B20/347

Abstract: The present invention provides an illumination device, an illumination system, and a lamp. The illumination system includes the illumination device and a light modulation module. The illumination device includes a light emitting diode (LED) array, an alternating current (AC) current source, and an output power control module. The AC current source is electrically coupled to the LED array. The output power control module is electrically coupled to the LED array and the AC current source. The LED array, the AC current source, and the output power control module together form a closed-loop control loop. The light modulation module is electrically coupled to the closed-loop control loop for modulating illumination brightness of the LED.

Abstract translation: 本发明提供一种照明装置，照明系统和灯。 照明系统包括照明装置和光调制模块。 照明装置包括发光二极管（LED）阵列，交流（AC）电流源和输出功率控制模块。 AC电流源电耦合到LED阵列。 输出功率控制模块电耦合到LED阵列和AC电流源。 LED阵列，AC电流源和输出功率控制模块一起形成闭环控制回路。 光调制模块电耦合到闭环控制环路，用于调制LED的照明亮度。