Inventor
EL-HAMAMSY SAYED-AMR A
US24 patents
Patents
24 patentsUS5118997AJun 2, 1992
Dual feedback control for a high-efficiency class-d power amplifier circuit
GEN ELECTRIC332 citations99
US5075839ADec 24, 1991
Inductor shunt, output voltage regulation system for a power supply
GEN ELECTRIC204 citations98
US5084801AJan 28, 1992
Liquid crystal variable capacitor and high intensity discharge lamp ballast employing same
GEN ELECTRIC59 citations96
US5030889AJul 9, 1991
Lamp ballast configuration
GEN ELECTRIC72 citations96
US5119284AJun 2, 1992
Efficient power supply post regulation
GEN ELECTRIC94 citations95
US5023566AJun 11, 1991
Driver for a high efficiency, high frequency Class-D power amplifier
GEN ELECTRIC118 citations94
US5325018AJun 28, 1994
Electrodeless fluorescent lamp shield for reduction of electromagnetic interference and dielectric losses
GEN ELECTRIC39 citations92
US5170337ADec 8, 1992
Low-inductance package for multiple paralleled devices operating at high frequency
GEN ELECTRIC46 citations92
US5134345AJul 28, 1992
Feedback system for stabilizing the arc discharge of a high intensity discharge lamp
GEN ELECTRIC24 citations92
US5075600ADec 24, 1991
Piezoelectrically actuated variable capacitor
GEN ELECTRIC39 citations92
US5063332ANov 5, 1991
Feedback control system for a high-efficiency class-D power amplifier circuit
GEN ELECTRIC29 citations92
US5059868AOct 22, 1991
Starting circuit for an electrodeless high intensity discharge lamp
GEN ELECTRIC25 citations92
US5043859AAug 27, 1991
Half bridge device package, packaged devices and circuits
GEN ELECTRIC47 citations92
US5153484AOct 6, 1992
Electrodeless high intensity discharge lamp excitation coil and ballast configuration for maximum efficiency
GEN ELECTRIC14 citations74
US5047693ASep 10, 1991
Starting aid for an electrodeless high intensity discharge lamp
GEN ELECTRIC15 citations74
US5479102ADec 26, 1995
Simulated load circuit for simulating the arc impedance of an electrodless discharge lamp
GEN ELECTRIC10 citations73
US5332970AJul 26, 1994
Method for measuring the impedance of an electrodeless arc discharge lamp
GEN ELECTRIC8 citations73
US5187412AFeb 16, 1993
Electrodeless high intensity discharge lamp
GEN ELECTRIC17 citations73
US5118996AJun 2, 1992
Starting circuit for an electrodeless high intensity discharge lamp
GEN ELECTRIC13 citations73
US5047692ASep 10, 1991
Integrated tuning capacitor network and heat sink for an electrodeless high intensity discharge lamp ballast
GEN ELECTRIC17 citations73
US5382878AJan 17, 1995
Auto-starting system for an electrodeless high intensity discharge lamp
GEN ELECTRIC10 citations72
US5107185AApr 21, 1992
Shielded starting coil for an electrodeless high intensity discharge lamp
GEN ELECTRIC8 citations66
US5113171AMay 12, 1992
High-frequency current-viewing resistor
GEN ELECTRIC4 citations63
US5084654AJan 28, 1992
Starting aid for an electrodeless high intensity discharge lamp
GEN ELECTRIC5 citations63