Issued Patents All Time
Showing 226–250 of 340 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7577002 | Frequency hopping control circuit for reducing EMI of power supplies | — | 2009-08-18 |
| 7573251 | AC-to-DC voltage regulator | Wei-Hsuan Huang | 2009-08-11 |
| 7570038 | Control circuit to reduce reverse current of synchronous rectifier | — | 2009-08-04 |
| 7570087 | Switching drive circuit for soft switching | Tso-Min Chen | 2009-08-04 |
| 7564903 | Method and apparatus for measuring reflected voltage of transformer | — | 2009-07-21 |
| 7564705 | Synchronous rectification circuit for power converters | — | 2009-07-21 |
| 7561447 | Primary-side controlled switching regulator | Chuh-Ching Li, Feng-Cheng Tsao | 2009-07-14 |
| RE40844 | High-side transistor driver for power converters | — | 2009-07-14 |
| 7557516 | Resonant inverter | Jea-Sen Lin | 2009-07-07 |
| 7550933 | Offline control circuit of LED driver to control the maximum voltage and the maximum current of LEDs | — | 2009-06-23 |
| 7531996 | Low dropout regulator with wide input voltage range | Chih-Ho Lin | 2009-05-12 |
| D590339 | Controller with DC brushless motor | Shih-Jen Yang, Hung-Sen Tu, Ming-Wei Cheng | 2009-04-14 |
| 7518416 | Method and apparatus for detecting switching current of magnetic device operated in continuous current mode | Chuh-Ching Li | 2009-04-14 |
| 7511466 | Method and apparatus for predicting discharge time of magnetic device for power converter | — | 2009-03-31 |
| RE40656 | Primary-side controlled flyback power converter | Jenn-yu G. Lin, Chern-Lin Chen | 2009-03-10 |
| 7498788 | Switching regulator having energy saving circuit | — | 2009-03-03 |
| 7492613 | Control circuit of power converter having adaptive bias for detecting reflected voltage of transformer | Chuh-Ching Li, Feng-Cheng Tsao | 2009-02-17 |
| 7489529 | Control circuit having frequency modulation to reduce EMI of power converters | — | 2009-02-10 |
| 7486528 | Linear-predict sampling for measuring demagnetized voltage of transformer | — | 2009-02-03 |
| 7486493 | Over-power protection circuit for power converter | — | 2009-02-03 |
| 7483281 | Multi-channel power converter with switching frequency modulation circuit for power saving | — | 2009-01-27 |
| 7471523 | Method and apparatus for detecting demagnetizing time of magnetic device | — | 2008-12-30 |
| 7471121 | Transistor drive circuit of power converter operating in a wide voltage range | Feng-Cheng Tsao, Chuh-Ching Li, Jesse R. Wang | 2008-12-30 |
| 7466569 | Power converter having phase lock circuit for quasi-resonant soft switching | Rui-Hong Lu, Chuh-Ching Li, Feng-Cheng Tsao, Tso-Min Chen | 2008-12-16 |
| 7460380 | Highly efficient switching power converter using a charge pump to power the drive circuit | — | 2008-12-02 |