Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492794 | Technique for limiting current through a reactive element in a voltage converter | — | 2002-12-10 |
| 6483281 | Low power mode and feedback arrangement for a switching power converter | — | 2002-11-19 |
| 6469914 | Universal pulse width modulating power converter | Calvin Hsu | 2002-10-22 |
| 6452366 | Low power mode and feedback arrangement for a switching power converter | — | 2002-09-17 |
| 6344980 | Universal pulse width modulating power converter | Calvin Hsu | 2002-02-05 |
| 6091233 | Interleaved zero current switching in a power factor correction boost converter | Thomas Li | 2000-07-18 |
| 5903138 | Two-stage switching regulator having low power modes responsive to load power consumption | Alland Chee | 1999-05-11 |
| 5894243 | Three-pin buck and four-pin boost converter having open loop output voltage control | — | 1999-04-13 |
| 5818207 | Three-pin buck converter and four-pin power amplifier having closed loop output voltage control | — | 1998-10-06 |
| 5804950 | Input current modulation for power factor correction | Wing Hung Ki | 1998-09-08 |
| 5798635 | One pin error amplifier and switched soft-start for an eight pin PFC-PWM combination integrated circuit converter controller | Donald Cho Lam Yu, Calvin Hsu, Alland Chee | 1998-08-25 |
| 5747977 | Switching regulator having low power mode responsive to load power consumption | — | 1998-05-05 |
| 5742151 | Input current shaping technique and low pin count for pfc-pwm boost converter | — | 1998-04-21 |
| 5592128 | Oscillator for generating a varying amplitude feed forward PFC modulation ramp | — | 1997-01-07 |
| 5565761 | Synchronous switching cascade connected offline PFC-PWM combination power converter controller | — | 1996-10-15 |
| 5396165 | Efficient power transfer system | Peter Reischl, Wen Yu, Kartik P. Bhatt, Gary Lin, George C. Chen | 1995-03-07 |