公开(公告)号：US08847511B1

公开(公告)日：2014-09-30

申请号：US14017319

申请日：2013-09-04

申请人： I-Shou University

发明人： Hung-Liang Cheng ,  Chao-Shun Chen

IPC分类号： G05F1/00 ,  H05B37/00 ,  H05B37/02 ,  H05B39/00 ,  H05B39/02 ,  H05B39/04 ,  H05B41/14 ,  H05B41/16 ,  H05B41/24 ,  H05B41/36 ,  H05B33/08

CPC分类号： H05B33/0815 ,  Y02B20/346 ,  Y02B20/348

摘要： A light emitting diode (LED) driving circuit suitable for driving an LED load is provided. The LED driving circuit includes an AC voltage source, a bridge rectifier, a plurality of diodes, inductors, transistors and capacitors. The diodes, inductors, transistors and capacitors are configured to form a buck-boost converter and a buck converter, where the buck-boost converter and the buck converter share the transistors as active switches. Designer can design the LED driving circuit with zero-voltage switching-on using the diode characteristic of the existing active switches by selecting suitable circuit parameters.

摘要翻译： 提供了适用于驱动LED负载的发光二极管（LED）驱动电路。 LED驱动电路包括AC电压源，桥式整流器，多个二极管，电感器，晶体管和电容器。 二极管，电感器，晶体管和电容器被配置成形成降压 - 升压转换器和降压转换器，其中降压 - 升压转换器和降压转换器共享作为有源开关的晶体管。 设计师可以通过选择合适的电路参数，利用现有有源开关的二极管特性，设计具有零电压开关的LED驱动电路。

公开(公告)号：US08773045B1

公开(公告)日：2014-07-08

申请号：US13731385

申请日：2012-12-31

申请人： I Shou University

发明人： Hung-Liang Cheng ,  Chao-Shun Chen ,  Guan-Long Huang

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

CPC分类号： H05B37/02 ,  H05B33/0815 ,  H05B33/0827 ,  Y02B20/348

摘要： An LED driving device includes a DC to DC converter module and a driving module. The DC to DC converter module includes a full-bridge switching circuit for converting a first DC electric power into an AC electric power, a rectifier circuit for converting the AC electric power into a second DC electric power, and a control circuit for modulating pulse phase of the second DC electric power and for controlling switching operation of the full-bridge switching circuit, such that the second DC electric power has a predetermined voltage value. The driving module is operable to receive the second DC electric power, to output a third DC electric power with a predetermined current value for driving an LED module, and to modulate pulse width of the third DC electric power.

摘要翻译： LED驱动装置包括DC-DC转换器模块和驱动模块。 DC-DC转换器模块包括用于将第一直流电转换为交流电的全桥开关电路，将交流电转换为第二直流电的整流电路，以及用于调制脉冲相位的控制电路 并且用于控制全桥开关电路的开关操作，使得第二DC电力具有预定的电压值。 驱动模块可操作以接收第二DC电力，输出具有用于驱动LED模块的预定电流值的第三DC电力，并调制第三DC电力的脉冲宽度。

公开(公告)号：US11660637B2

公开(公告)日：2023-05-30

申请号：US16917873

申请日：2020-06-30

申请人： I-SHOU UNIVERSITY

发明人： Chun-An Cheng ,  Hung-Liang Cheng ,  Ya-Jing Chen

IPC分类号： B06B1/02

CPC分类号： B06B1/0223

摘要： A driving device is provided. The driving device includes a boost inductor and a resonance circuit. The boost inductor receives a first power via a first terminal of the boost inductor in a first mode and provides a second power via a second terminal of the boost inductor. The resonance circuit stores a stored electric energy from the second power in the first mode, so that the boost inductor does not provide the second power in the second mode and drives a transducer by the stored electric energy in the first mode and the second mode.

公开(公告)号：US20210276043A1

公开(公告)日：2021-09-09

申请号：US16917873

申请日：2020-06-30

申请人： I-SHOU UNIVERSITY

发明人： Chun-An Cheng ,  Hung-Liang Cheng ,  Ya-Jing Chen

IPC分类号： B06B1/02

摘要： A driving device is provided. The driving device includes a boost inductor and a resonance circuit. The boost inductor receives a first power via a first terminal of the boost inductor in a first mode and provides a second power via a second terminal of the boost inductor. The resonance circuit stores a stored electric energy from the second power in the first mode, so that the boost inductor does not provide the second power in the second mode and drives a transducer by the stored electric energy in the first mode and the second mode.