Inventor · Framingham, MA, US

Derek Chambers

15Patents
11h-index
10Co-inventors
69Inventor score

Filing activity: Jan 24, 1974 → Sep 1, 2000

Most-cited inventions

PatentTitleAreaCited byStatus
US4523269A Series resonance charge transfer regulation method and apparatus Electricity 54 Expired
US6469469B1 Variable output induction motor drive system Electricity 31 Expired
US4073003A High efficiency low-loss power supply Electricity 28 Expired
US4805081A Multi-mode control systems for high-frequency resonant inverters Electricity 26 Expired
US4896000A Arrangement for terminating an electrical cable screen Emerging Cross-Sectional Technologies 25 Expired
US4030024A Switching power supply with floating internal supply circuit Emerging Cross-Sectional Technologies 25 Expired
US4073004A Power supply with voltage protection circuit Physics 16 Expired
US4092566A Switched high voltage power supply system Electricity 13 Expired
US4488214A High-power, high-frequency inverter system with combined digital and analog control Emerging Cross-Sectional Technologies 12 Expired
US4097863A Marine radar system with independent switched power supplies Physics 12 Expired
US3967181A Converter wherein switching frequency is independent of output voltage and is synchronized to an external system Physics 11 Expired
US4467268A Digitally controlled power supply Emerging Cross-Sectional Technologies 9 Expired
US4203055A High voltage power supply system Electricity 6 Expired
US4025841A Current limiting circuit for voltage regulated power supply Physics 6 Expired
US5474819A Bonded article Emerging Cross-Sectional Technologies 2 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.