Issued Patents All Time
Showing 26–50 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9883561 | Systems and methods for intelligent control related to triac dimmers by using modulation signals | Yuhao Liang, Yimu Liao | 2018-01-30 |
| 9883557 | Two-terminal integrated circuits with time-varying voltage-current characteristics including phased-locked power supplies | Qiang Luo, Liqiang Zhu, Lieyi Fang | 2018-01-30 |
| 9768777 | Systems and methods of level shifting for voltage drivers | Chao Yao, Tingzhi Yuan, Qiang Luo, Lieyi Fang | 2017-09-19 |
| 9647448 | System and method providing over current and over power protection for power converter | Lieyi Fang, Shifeng Zhao, Bo Li | 2017-05-09 |
| 9480118 | Systems and methods for intelligent control related to TRIAC dimmers | Yimu Liao, Yuhao Liang, Lieyi Fang | 2016-10-25 |
| 9307597 | Systems and methods for current matching of LED strings | Qiang Luo, Lieyi Fang | 2016-04-05 |
| 8947012 | Systems and methods for current matching of LED strings | Qiang Luo, Lieyi Fang | 2015-02-03 |
| 8736345 | Systems and methods of level shifting for voltage drivers | Chao Yao, Tingzhi Yuan, Qiang Luo, Lieyi Fang | 2014-05-27 |
| 8587226 | Driver system and method with cyclic configuration for multiple cold-cathode fluorescent lamps and/or external-electrode fluorescent lamps | Lieyi Fang, Changshan Zhang, Shifeng Zhao | 2013-11-19 |
| 8537573 | System and method for providing control for switch-mode power supply | Jun Ye, Zhen Zhu, Shifeng Zhao, Lieyi Fang | 2013-09-17 |
| 8482946 | System and method providing over current and over power protection for power converter | Lieyi Fang, Shifeng Zhao, Bo Li | 2013-07-09 |
| 8391332 | System and method for controlling variations of switching frequency | Jun Ye, Zhen Zhu, Shifeng Zhao, Lieyi Fang | 2013-03-05 |
| 8379415 | Systems and methods for reducing EMI in switch mode converter systems | Xiuhong Zhang, Jun Ye, Shifeng Zhao, Lieyi Fang | 2013-02-19 |
| 8344715 | System and method for adaptive switching frequency control | Jun Ye, Zhen Zhu, Shifeng Zhao, Lieyi Fang | 2013-01-01 |
| 8344643 | Driver system and method for multiple cold-cathode fluorescent lamps and/or external-electrode fluorescent lamps | Lieyi Fang, Changshan Zhang, Shifeng Zhao | 2013-01-01 |
| 8330525 | System and method for driving bipolar transistors in switching power conversion | Lieyi Fang, Shifeng Zhao, Zhenhua Li | 2012-12-11 |
| 8125802 | Systems and methods for reducing EMI in switch mode converter systems | Xiuhong Zhang, Jun Ye, Shifeng Zhao, Lieyi Fang | 2012-02-28 |
| 8018745 | System and method providing over current and over power protection for power converter | Lieyi Fang, Shifeng Zhao, Bo Li | 2011-09-13 |
| 7990202 | System and method for driving bipolar transistors in switching power conversion | Lieyi Fang, Shifeng Zhao, Zhenhua Li | 2011-08-02 |
| 7880407 | Driver system and method with cyclic configuration for multiple cold-cathode fluorescent lamps and/or external-electrode fluorescent lamps | Lieyi Fang, Changshan Zhang, Shifeng Zhao | 2011-02-01 |
| 7859806 | System and method of electrostatic discharge protection for signals at various voltages | Shifeng Zhao, Lieyi Fang, Zhen Zhu, Jun Ye | 2010-12-28 |
| 7852640 | System and method for providing control for switch-mode power supply | Jun Ye, Zhen Zhu, Shifeng Zhao, Lieyi Fang | 2010-12-14 |
| 7795851 | System and method for adaptive switching frequency control | Jun Ye, Zhen Zhu, Shifeng Zhao, Lieyi Fang | 2010-09-14 |
| 7750581 | Driver system and method for multiple cold-cathode fluorescent lamps and/or external-electrode fluorescent lamps | Lieyi Fang, Changshan Zhang, Shifeng Zhao | 2010-07-06 |
| 7746615 | Adaptive multi-level threshold system and method for power converter protection | Zhen Zhu, Jun Ye, Shifeng Zhao, Lieyi Fang | 2010-06-29 |