Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12358380 | Pre-charge apparatus and control method | Yi Yang | 2025-07-15 |
| 11929669 | Totem-pole bridgeless power factor correction device and power supply | Danyang Zhu, Qixiang Han | 2024-03-12 |
| 11916495 | Adaptive zero voltage switching (ZVS) loss detection for power converters | Hrishikesh Ratnakar Nene, Salil Chellappan | 2024-02-27 |
| 11831307 | Power switch drive circuit and device | Danyang Zhu | 2023-11-28 |
| 11804833 | Gate leakage current monitor apparatus and control method | Danyang Zhu | 2023-10-31 |
| 11611339 | Power switch drive circuit and device | Danyang Zhu | 2023-03-21 |
| 11165423 | Power switch drive circuit and device | Danyang Zhu | 2021-11-02 |
| 10944337 | Adaptive zero voltage switching (ZVS) loss detection for power converters | Hrishikesh Ratnakar Nene, Salil Chellappan | 2021-03-09 |
| 10644585 | Power factor correction (PFC) device with switching analysis circuit | — | 2020-05-05 |
| 10476375 | Multiple output integrated power factor correction | Shamim Choudhury, Zhenyu Yu | 2019-11-12 |
| 10256717 | Zero current detection circuit for converter soft switching control | Sanatan Rajagopalan | 2019-04-09 |
| 9912229 | Multiple output integrated power factor correction | Shamim Choudhury, Zhenyu Yu | 2018-03-06 |
| 9496828 | System and method for envelope tracking power supply | — | 2016-11-15 |
| 9431896 | Apparatus and method for zero voltage switching in bridgeless totem pole power factor correction converter | — | 2016-08-30 |
| D761479 | Lamp | — | 2016-07-12 |
| 9118239 | Power supply control method for constant current constant power control | Shanguang Xu | 2015-08-25 |
| 9118259 | Phase-shifted dual-bridge DC/DC converter with wide-range ZVS and zero circulating current | — | 2015-08-25 |
| 8971075 | Method and apparatus for generating an adaptive switching frequency for operating power factor correction circuit | Bosheng Sun | 2015-03-03 |
| 8891269 | Full bridge converter | Shanguang Xu | 2014-11-18 |
| 8779746 | Methods and apparatus for constant power/current control for switch-mode power converters | Shamim Choudhury, Chris M. Franklin | 2014-07-15 |
| 8780585 | Double phase-shifting full-bridge DC-to-DC converter | — | 2014-07-15 |
| 8749217 | Primary voltage sensing and control for converter | — | 2014-06-10 |
| 8675375 | System and method for input voltage transient response control | Shanguang Xu | 2014-03-18 |
| 8018740 | LLC soft start by operation mode switching | Bosheng Sun, Yuwei Luo | 2011-09-13 |
| 7012413 | Controller for a power factor corrector and method of regulating the power factor corrector | — | 2006-03-14 |