1
Chaoqun Sun, Hongjian Gan, Jianping Ying: LLC series resonant converter and the driving method for the synchronous rectification power switches thereof. DELTA Electronics, J C Patents, February 27, 2007: US07184280 (34 worldwide citation)

An LLC series resonant converter and a driving method for the synchronous rectification power switches thereof are provided. The LLC series resonant converter includes a bridge circuit, a resonant network, a transformer, a rectification circuit, and a frequency adjustment controller. The bridge circ ...


2
Hongjian Gan, Huijie Xue, Chaoqun Sun, Alpha J Zhang: Time delay control scheme for a power supply with multiple outputs. DELTA Electronics, J C Patents, April 14, 2009: US07518263 (18 worldwide citation)

A time delay synchronous control scheme for a power supply, which has multiple outputs and tight output regulations, is provided. The switching mode power supply includes (1) a front-end DC/DC converter with current mode output, which can be a LLC Series Resonant converter (SRC) or a flyback convert ...


3
Hongjian Gan, Zhongwei Ke, Chaoqun Sun, Alpha J Zhang: Constant voltage reset circuit for forward converter. Delta Electronics, October 28, 2003: US06639814 (15 worldwide citation)

A constant voltage reset circuit used in a forward converter for the holdup time requirement or the wide input voltage range is disclosed. In one embodiment, the constant voltage reset circuit comprises a reset capacitor, a parallel-coupled switch, and a diode coupled in series with the reset capaci ...


4
Fan Chen, Xin Wu, Chaoqun Sun, Qanqing Wu: Power supply apparatus and method for a backlight system. BCD Semiconductor Manufacturing, Kilpatrick Townsend & Stockton, September 3, 2013: US08525428 (8 worldwide citation)

A power supply system includes a transformer having a primary winding on its primary side for coupling to a power source and one or more secondary windings on its secondary side. A first control circuit is disposed on the primary side of the transformer for controlling a current flow in the primary ...


5
Chaoqun Sun, Xia Wang, Jinxiang Shen: Dimmable LED lamp and dimming method. SENGLED OPTOELECTRONICS, Anova Law Group PLLC, April 5, 2016: US09307604 (5 worldwide citation)

A dimmable light emitting diode (LED) lamp is provided. The dimmable LED lamp includes an alternating current (AC) input unit and at least one AC detection unit connected to the AC input unit. The dimmable LED lamp also includes at least one LED driving and power supply unit and at least one LED lig ...


6
Chaoqun Sun, Jiayang Ruan, Jinxiang Shen: LED lighting device and LED control system. ZHEJIANG SHENGHUI LIGHTING, Anova Law Group PLLC, April 19, 2016: US09320101 (4 worldwide citation)

LED lighting device and LED control system are provided. An LED lighting device includes an LED power supply unit, a controller unit, a microphone module, a wireless communication module, and an LED light source assembly. An LED control system includes at least one LED lighting device, at least one ...


7
Xia Wang, Chaoqun Sun, Jinxiang Shen: Parking management apparatus and system. SENGLED OPTOELECTRONICS, Anova Law Group PLLC, September 26, 2017: US09773414 (1 worldwide citation)

A parking management system is provided. The system includes a plurality of first parking management apparatuses configured to detect whether parking spaces are occupied and to adjust a brightness level of lights based on occupancy information of the parking spaces. The system also includes at least ...


8
Chaoqun Sun, Jinxiang Shen: Intelligent lighting control system and method. SENGLED OPTOELECTRONICS, Anova Law Group PLLC, July 25, 2017: US09717132 (1 worldwide citation)

An intelligent lighting control system is provided. The system includes at least one smart lighting device, including a control module, a lighting module, a microphone module and a wireless communication module, where the control module is connected to the lighting module, the microphone module, and ...


9
Chaoqun Sun, Jinxiang Shen: Smart lighting device, and smart lighting control system and method. SENGLED OPTOELECTRONICS, Anova Law Group PLLC, April 25, 2017: US09635740 (1 worldwide citation)

The present disclosure provides a smart lighting device, and a smart lighting control system and method. The smart lighting device includes a human detection module, a control module, and a microphone module. The microphone module has operation modes including a sleep mode and a monitor mode. The hu ...


10
Yi Xu, Chaoqun Sun, Jinxiang Shen: LED lighting device, wireless network and control method thereof. SENGLED OPTOELECTRONICS, Anova Law Group PLLC, April 25, 2017: US09635744 (1 worldwide citation)

The present disclosure provides a first LED lighting device. The first LED lighting device includes a lighting source, a first detecting module, a first processing module, a first wireless communication module for communicating with a wireless router in an LED lighting device-based wireless mesh net ...