Issued Patents All Time
Showing 51–75 of 141 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7400061 | Soft switched secondary side post regulator for DC to DC converter | John Stanley Glaser | 2008-07-15 |
| 7336059 | System and method for charging and discharging a superconducting coil | Luis Jose Garces | 2008-02-26 |
| 7331803 | Power control system and method | Todd Alan Anderson | 2008-02-19 |
| 7327113 | Electric starter generator system employing bidirectional buck-boost power converters, and methods therefor | Luis Jose Garces, Matthew Christopher Bringman | 2008-02-05 |
| 7142440 | Ripple-current reduction for transformers | Michael A. de Rooij, Michael Joseph Schutten | 2006-11-28 |
| 7132757 | Power control system and method | Todd Alan Anderson | 2006-11-07 |
| 7016205 | Ripple-current reduction schemes for AC converters | Richard S. Zhang, Michael Joseph Schutten, Andrew Michael De Rooij | 2006-03-21 |
| 7007898 | Method and apparatus for railcar data acquisition and communication | Russell Stephen DeMuth | 2006-03-07 |
| 6930483 | Method/system for switched frequency ripple reduction in MRI gradient coils | Juan Antonio Sabate, Michael Joseph Schutten | 2005-08-16 |
| 6735094 | Low-noise multi-output power supply circuit featuring efficient linear regulators and method of design | Chester Frank Saj | 2004-05-11 |
| 6693805 | Ripple cancellation circuit for ultra-low-noise power supplies | Michael Joseph Schutten | 2004-02-17 |
| 6583705 | High current inductor and method for making same | Michael Joseph Schutten, William George Earls | 2003-06-24 |
| 6556462 | High power factor converter with a boost circuit having continuous/discontinuous modes | Vinod John, Milan Ilic | 2003-04-29 |
| 6369535 | Method and apparatus for current shaping in electronically commutated motors | Jing Wang | 2002-04-09 |
| 6262905 | Secondary-side controlled resonant AC voltage regulator module | Richard S. Zhang | 2001-07-17 |
| 6166602 | High-efficiency switching power amplifier | William F. Wirth | 2000-12-26 |
| 6040753 | Ultra-low-profile tube-type magnetics | Sriram Ramakrishnan, William Hull Bicknell | 2000-03-21 |
| 6031747 | Interleaved synchronous flyback converter with high efficiency over a wide operating load range | Milan Ilic | 2000-02-29 |
| 6031746 | Switching amplifier for generating continuous arbitrary waveforms for magnetic resonance imaging coils | William F. Wirth, Ljubisa Dragolijub Stevanovic, John Norton Park | 2000-02-29 |
| 5952832 | Diagnostic circuit and method for predicting fluorescent lamp failure by monitoring filament currents | Ljubisa Dragoljub Stevanovic, Wing Yeung Chung | 1999-09-14 |
| 5910709 | Florescent lamp ballast control for zero -voltage switching operation over wide input voltage range and over voltage protection | Ljubisa Dragoljub Stevanovic, Mustansir Kheraluwala | 1999-06-08 |
| 5812384 | Matrix filters for low-noise power distribution systems | Sriram Ramakrishnan, Charles Steven Korman | 1998-09-22 |
| 5781421 | High-frequency, high-efficiency converter with recirculating energy control for high-density power conversion | Sriram Ramakrishnan | 1998-07-14 |
| 5773966 | Dual-mode, high-efficiency dc-dc converter useful for portable battery-operated equipment | — | 1998-06-30 |
| 5703441 | Multi-function filament-heater power supply for an electronic ballast for long-life dimmerable lamps | Chester Frank Saj, Ljubisa Dragoljub Stevanovic | 1997-12-30 |