公开(公告)号：US20190380179A1

公开(公告)日：2019-12-12

申请号：US16145217

申请日：2018-09-28

申请人： I-SHOU UNIVERSITY

发明人： Chun-An Cheng ,  Chin-Chih Lai ,  Yi-Ling Chen ,  Pei-Jung Hsieh

IPC分类号： H05B33/08 ,  H02M1/34 ,  F21V23/00

摘要： A lighting system and a driving circuit thereof are provided. The driving circuit is configured to drive a light emitting device. The driving circuit includes a bulk voltage converter. The bulk voltage converter receives an input voltage and converts the input voltage to generate a driving voltage. The bulk voltage converter includes a snubber circuit, a power switch, and an inductor. The snubber circuit receives the input voltage through a first node and generates a snubber voltage at a second node according to the input voltage. The power switch is turned on or off according to a control signal. The inductor is coupled between the first node and a third node. The driving circuit is coupled to the light emitting device through the first node and the third node and provides the driving voltage to the light emitting device.

公开(公告)号：US10674584B2

公开(公告)日：2020-06-02

申请号：US16145217

申请日：2018-09-28

申请人： I-SHOU UNIVERSITY

发明人： Chun-An Cheng ,  Chin-Chih Lai ,  Yi-Ling Chen ,  Pei-Jung Hsieh

IPC分类号： H05B33/08 ,  H02M1/34 ,  F21V23/00 ,  H05B45/37 ,  F21Y115/10

摘要： A lighting system and a driving circuit thereof are provided. The driving circuit is configured to drive a light emitting device. The driving circuit includes a bulk voltage converter. The bulk voltage converter receives an input voltage and converts the input voltage to generate a driving voltage. The bulk voltage converter includes a snubber circuit, a power switch, and an inductor. The snubber circuit receives the input voltage through a first node and generates a snubber voltage at a second node according to the input voltage. The power switch is turned on or off according to a control signal. The inductor is coupled between the first node and a third node. The driving circuit is coupled to the light emitting device through the first node and the third node and provides the driving voltage to the light emitting device.

公开(公告)号：US10608527B2

公开(公告)日：2020-03-31

申请号：US15995151

申请日：2018-06-01

申请人： I-SHOU UNIVERSITY

发明人： Chun-An Cheng ,  Er-Yun Chang ,  Chin-Chih Lai ,  Man-Tang Chang

IPC分类号： H02M1/42 ,  H05B33/08 ,  H02M1/34 ,  H02M1/14 ,  H02M3/335

摘要： A power supply apparatus for driving a light emitting apparatus is provided. The power supply apparatus includes a lossless snubber circuit and a power converting circuit. The lossless snubber circuit has a first diode, a first inductor and a second diode coupled in series between an input end and a first reference end, and has a first capacitor coupled between the first diode and a second reference end. The power converting circuit has a switch, a transformer and a second indictor. The switch is coupled between the first and second reference ends, and is turned on or off according to a control signal. The second inductor is coupled to a first side of the transformer in parallel.

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.

公开(公告)号：US09445468B1

公开(公告)日：2016-09-13

申请号：US14861967

申请日：2015-09-22

申请人： I Shou University

发明人： Chun-An Cheng ,  Tsung-Yuan Chung

IPC分类号： H05B33/08 ,  H02M3/335

CPC分类号： H05B33/0815 ,  H02M1/4258 ,  Y02B20/346 ,  Y02B70/126

摘要： A voltage converting device includes an input circuit to rectify an AC input voltage, a voltage converter receiving the rectified input voltage, a specific connection of a switch, an inductor, a capacitor and two discharging diodes coupled between the input circuit and a primary-side winding of the voltage converter, and an output circuit coupled to a secondary-side winding of the voltage converter to output a DC output voltage. Through proper operation of the switch, the AC input voltage may be converted into the DC output voltage.

摘要翻译： 电压转换装置包括用于整流交流输入电压的输入电路，接收整流输入电压的电压转换器，开关，电感器，电容器和耦合在输入电路和初级侧之间的两个放电二极管的特定连接 电压转换器的绕组，以及耦合到电压转换器的次级侧绕组的输出电路，以输出DC输出电压。 通过开关的正确操作，交流输入电压可以转换为直流输出电压。