Issued Patents All Time
Showing 1–25 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11081924 | Method and apparatus to reduce losses in a compact high speed generator | Cristian Anghel, Tom Phielix, William Scherzinger | 2021-08-03 |
| 10472084 | Motor-generator for high efficiency auxiliary power system | Cristian Anghel, Eric Blumer, Wayne Pearson | 2019-11-12 |
| 10110079 | Wound field generator system featuring combined permanent magnet generator excitation with exciter stator | Jens Gehrke, Simon Waddell, Wayne Pearson, Cristian Anghel | 2018-10-23 |
| 9450527 | Controlled frequency generator with optimized power factor | Cristian Anghel | 2016-09-20 |
| 8803489 | Adaptive on-time control for power factor correction stage light load efficiency | Qian Li, Fred C. Lee, Chuanyun Wang | 2014-08-12 |
| 8680734 | Compact starter-generator with common core for main and exciter winding | Cristian Anghel, Parsa Mirmobin | 2014-03-25 |
| 8427001 | Electrically controlled frequency-based power system architecture for aircraft | Cristian Anghel | 2013-04-23 |
| 8331110 | Switching capacitor—PWM power converter | Ke Jin, Fred C. Lee | 2012-12-11 |
| 8324747 | Starting method for brushless wound field starter-generator without rotating diode rectifier | Cristian Anghel | 2012-12-04 |
| 8198743 | Multi-stage controlled frequency generator for direct-drive wind power | Cristian Anghel, Parsa Mirmobin | 2012-06-12 |
| 8198872 | Starter-generator with improved excitation | Cristian Anghel, Wayne Pearson | 2012-06-12 |
| 8174159 | Optimized multi-phase armature winding | Wayne Pearson, Cristian Anghel | 2012-05-08 |
| 7990115 | High frequency generator without rotating diode rectifier | Cristian Anghel, William Scherzinger | 2011-08-02 |
| 7952331 | Self-excited controlled frequency generator system with bi-directional converter | Cristian Anghel, Parsa Mirmobin | 2011-05-31 |
| 7915869 | Single stage starter/generator with rotor quadrature AC excitation | Cristian Anghel, William Scherzinger | 2011-03-29 |
| 7872886 | Quasi-parallel voltage regulator | Julu Sun, Ya Liu, Fred C. Lee | 2011-01-18 |
| 7821375 | Multiphase voltage regulator having coupled inductors with reduced winding resistance | Yan Dong, Fred C. Lee | 2010-10-26 |
| 7791321 | Coupled-inductor multi-phase buck converters | Fred C. Lee, Yucheng Ying | 2010-09-07 |
| 7746041 | Non-isolated bus converters with voltage divider topology | Julu Sun, Fred C. Lee | 2010-06-29 |
| 7746675 | Asymmetrical interleaving strategy for multi-channel power converters | Chuanyun Wang, Fred C. Lee | 2010-06-29 |
| 7742318 | Multi-element resonant converters | Dianbo Fu, Fred C. Lee, Ya Liu | 2010-06-22 |
| 7705577 | Digital power supply control | Jian-Feng Li, Yang Qiu, Fred C. Lee | 2010-04-27 |
| 7649434 | Multiphase voltage regulator having coupled inductors with reduced winding resistance | Yan Dong, Fred C. Lee | 2010-01-19 |
| 7605572 | Input current sensing AVP method for future VRM | Fred C. Lee, Jinghai Zhou | 2009-10-20 |
| 7583065 | Hybrid filter for high slew rate output current application | Yuancheng Ren, Fred C. Lee, Andrew P. Schmit | 2009-09-01 |