Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11411503 | Voltage sensing of an active clamp switching power converter circuit using an auxiliary winding having a same polarity as a primary winding | Liang Yan, Junjie Zheng | 2022-08-09 |
| 11239740 | Voltage sensing of an active clamp switching power converter circuit using auxiliary winding having an opposite polarity as a primary winding | Wanfeng Zhang, Liang Yan, Junjie Zheng | 2022-02-01 |
| 11050350 | Controlling an active clamp switching power converter circuit based on a sensed voltage drop on an auxiliary winding | Jinho Choi, Liang Yan, Wanfeng Zhang, Junjie Zheng | 2021-06-29 |
| 10985665 | Voltage sensing of an active clamp switching power converter circuit using an auxiliary winding having a same polarity as a primary winding | Liang Yan, Junjie Zheng | 2021-04-20 |
| 9279838 | System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system | Jeffrey J. DaCunha | 2016-03-08 |
| 9084325 | Adaptive dimmer detection and control for LED lamp | Junjie Zheng, John William Kesterson, Baorong Chen, Gordon Chen | 2015-07-14 |
| 9041332 | System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system | Jeffrey J. DaCunha | 2015-05-26 |
| 8970135 | Adaptive dimmer detection and control for LED lamp | Junjie Zheng, John William Kesterson, Baorong Chen, Gordon Chen | 2015-03-03 |
| 8970115 | Delaying startup under fault conditions | Clarita Poon, Liang Yan | 2015-03-03 |
| 8853968 | Adaptive compensation for effects of cat-ear dimmers on conduction angle measurement | Clarita Poon, Liang Yan | 2014-10-07 |
| 8823283 | Power dissipation monitor for current sink function of power switching transistor | John William Kesterson | 2014-09-02 |
| 8643303 | Adaptive dimmer detection and control for LED lamp | Junjie Zheng, John William Kesterson, Baorong Chen, Gordon Chen | 2014-02-04 |
| 8222832 | Adaptive dimmer detection and control for LED lamp | Junjie Zheng, John William Kesterson, Baorong Chen, Gordon Chen | 2012-07-17 |
| 4946773 | Detection of base pair mismatches using RNAase A | Thomas Maniatis | 1990-08-07 |