Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6052294 | Power supply snubber reset circuit | Rui Liu, Hengchun Mao | 2000-04-18 |
| 6046915 | Phase selection circuit for three phase power converter and method of operation thereof | Yimin Jiang, Hengchun Mao | 2000-04-04 |
| 6043997 | Two stage, three-phase boost converter with reduced total harmonic distortion | Jin He | 2000-03-28 |
| 6038147 | Power supply employing circulating capacitor and method of operation thereof | Yimin Jiang, Hengchun Mao, Vijayan J. Thottuvelil | 2000-03-14 |
| 6034513 | System and method for controlling power factor and power converter employing the same | Richard W. Farrington, Hengchun Mao | 2000-03-07 |
| 6031739 | Two-stage, three-phase split boost converter with reduced total harmonic distortion | Jin He | 2000-02-29 |
| 6025999 | Dual output power supply and method of operation thereof | Richard W. Farrington, Hengchun Mao, Vijayan J. Thottuvelil | 2000-02-15 |
| 6002241 | Dual mode split-boost converter and method of operation thereof | Yimin Jiang, Hengchun Mao | 1999-12-14 |
| 5991168 | Transient response network, method of diverting energy in a multiple output power converter and a power converter employing the same | Richard W. Farrington | 1999-11-23 |
| 5986904 | Self-regulating lossless snubber circuit | Hengchun Mao | 1999-11-16 |
| 5936857 | Power converter having multiple output voltage capability | Hengchun Mao | 1999-08-10 |
| 5912549 | Current mode controller for continuous conduction mode power factor correction circuit and method of operation thereof | Richard W. Farrington, William P. Gardiner, Hengchun Mao | 1999-06-15 |
| 5909108 | Current-sharing circuit for parallel-coupled switches and switch-mode power converter employing the same | Jin He | 1999-06-01 |
| 5870291 | Asymmetrical half-bridge converter having adjustable parasitic resistances to offset output voltage DC bias | Richard W. Farrington, Rui Liu | 1999-02-09 |
| 5861734 | Control architecture for interleaved converters | Greg H. Fasullo, Jin He, Yimin Jiang | 1999-01-19 |
| 5847548 | Current-sharing passive snubber for parallel-connected switches and high power boost converter employing the same | Jin He | 1998-12-08 |
| 5844790 | Split-boost converter having damped EMI isolation filter and method of operation thereof | Yimin Jiang | 1998-12-01 |
| 5784269 | Three phase high power factor converter using phase selection circuit | Yimin Jiang | 1998-07-21 |
| 5777866 | Power factor control for switched mode rectifiers with improved representing of currents in EMI capacitive elements | Yimin Jiang, Vijayin Joseph Thottuvelil, Rui Liu | 1998-07-07 |
| 5764037 | High efficiency boost topology with two outputs | Richard W. Farrington | 1998-06-09 |
| 5691891 | Current balancing arrangement for paralleled diode arrangements | Greg H. Fasullo, Kenneth J. Timm | 1997-11-25 |
| 5687070 | Power factor control for switched mode rectifiers | Yimin Jiang, Vijayan J. Thottuvelil | 1997-11-11 |
| 5627455 | Boost topology with two outputs for power factor correction application | Richard W. Farrington | 1997-05-06 |
| 5572416 | Isolated input current sense means for high power factor rectifier | Richard W. Farrington, Robert John Murphy | 1996-11-05 |
| 5414747 | Method and apparatus for in-process analysis of polycrystalline films and coatings by x-ray diffraction | Clayton O. Ruud | 1995-05-09 |