Issued Patents All Time
Showing 51–75 of 117 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8890424 | Illumination device, illumination system, and lamp | Lizhi Xu, Weiqiang Zhang, Ching-Ho Chou, Hsiang-Chen Wu | 2014-11-18 |
| 8884542 | Self-oscillating dimmable electronic ballast | Weiqiang Zhang, Yan Zhong | 2014-11-11 |
| 8884533 | Light emitting diode lighting device and light emitting diode lamp | Weiqiang Zhang, Lizhi Xu | 2014-11-11 |
| 8842448 | Parallel-connected resonant converter circuit and controlling method thereof | Haoyi Ye, Jianhong Zeng, Hongyang Wu, Chao Yan, Teng Liu | 2014-09-23 |
| 8816609 | Method and circuit for improving crest factor of gas discharge lamp | Qi Zhang, Weiqiang Zhang | 2014-08-26 |
| 8767416 | Resonant converter system with hybrid control apparatus and controlling method thereof having relatively better efficiency | Yiqing Ye, Chao Yan, Jianhong Zeng | 2014-07-01 |
| 8760083 | Ballast with control device for controlling the open-circuit voltage | Qi Zhang, Weiqiang Zhang | 2014-06-24 |
| 8742670 | Electronic ballast | Yan Zhong, Weiqiang Zhang | 2014-06-03 |
| 8717789 | Three-phase buck-boost power factor correction circuit and controlling method thereof | Jingtao Tan, Yang Li, Zhijian Zhou, Shichao Yan, Wen-Yin Tasi | 2014-05-06 |
| 8705254 | Single-phase and three-phase dual buck-boost/buck power factor correction circuits and controlling method thereof | Jingtao Tan, Zhijian Zhou, Jianping Yang, Wenhui Gou | 2014-04-22 |
| 8692478 | Current balancing circuit | Lizhi Xu, Weiqiang Zhang | 2014-04-08 |
| 8686746 | Test apparatus and method for measuring common-mode capacitance | Min Zhou, Yicong Xie, Jinping Zhou | 2014-04-01 |
| 8564221 | Driving circuit system for gas discharge lamp and the control method thereof | Qi Zhang, Weiqiang Zhang | 2013-10-22 |
| 8536735 | Converter with input voltage balance circuit | Chao Yan, Yiqing Ye, Chongfeng Zheng | 2013-09-17 |
| 8493761 | Inverter circuit having relatively higher efficiency | Jingtao Tan, Degang Yi, Fei Lv, Lei-Ming Lee, Wen-Yin Tsai | 2013-07-23 |
| 8487550 | Multi-channel LED driver circuit | Weiqiang Zhang, Lizhi Xu, Qi Zhang | 2013-07-16 |
| 8441825 | H-bridge circuit having energy compensation circuit and controlling method thereof | Jianhong Zeng, Qikun Wu, Nan Ye, Hongyuan Jin | 2013-05-14 |
| 8436557 | Ballast control circuit and ballast control method for gas discharge lamp | Qi Zhang, Weiqiang Zhang | 2013-05-07 |
| 8400787 | Resonant converter system having synchronous control circuit and controlling method thereof | Hongyang Wu, Bin Wang, Jianhong Zeng, Xiaoni Xin | 2013-03-19 |
| 8345450 | Resonant converter having over-current protection apparatus and controlling method thereof | Chao Yan, Jianhong Zeng, Wenxin Zhang, Yiqing Ye, Peter Mantovanelli Barbosa +1 more | 2013-01-01 |
| 8305779 | Parallel-connected uninterrupted power supply circuit | Yansong Lu, Jingtao Tan, Xiao Chen, Hao Yu | 2012-11-06 |
| 8279633 | Parallel-connected resonant converter circuit and controlling method thereof | Haoyi Ye, Jianhong Zeng, Hongyang Wu, Chao Yan, Teng Liu | 2012-10-02 |
| 8232856 | Connector and power transformer structure comprising the same | Jianhong Zeng, Bin Wang, Hongyang Wu | 2012-07-31 |
| 8169804 | Three-phase buck-boost power factor correction circuit and controlling method thereof | Jingtao Tan, Yang Li, Zhijian Zhou, Shichao Yan, Wen-Yin Tasi | 2012-05-01 |
| 8040696 | Resonant converter system having synchronous control circuit and controlling method thereof | Hongyang Wu, Bin Wang, Jianhong Zeng, Xiaoni Xin | 2011-10-18 |