Inventor

BIRDSALL DWIGHT D

US7 patents

Patents

7 patents

US5343163AAug 30, 1994

Single-ended and differential transistor amplifier circuits with full signal modulation compensation techniques which are technology independent

HUGHES AIRCRAFT CO33 citations92

US5250911AOct 5, 1993

Single-ended and differential transistor amplifier circuits with full signal modulation compensation techniques which are technology independent

HUGHES AIRCRAFT CO23 citations92

US5483150AJan 9, 1996

Transistor current switch array for digital-to-analog converter (DAC) including bias current compensation for individual transistor current gain and thermally induced base-emitter voltage drop variation

HUGHES AIRCRAFT CO23 citations91

US5410274AApr 25, 1995

Single-ended and differential amplifiers with high feedback input impedance and low distortion

HUGHES AIRCRAFT CO48 citations91

US5378938AJan 3, 1995

Sample-and-hold circuit including push-pull transconductance amplifier and current mirrors for parallel feed-forward slew enhancement and error correction

HUGHES AIRCRAFT CO10 citations72

US5315231AMay 24, 1994

Symmetrical bipolar bias current source with high power supply rejection ratio (PSRR)

HUGHES AIRCRAFT CO17 citations72

US5315169AMay 24, 1994

Power-efficient sample and hold circuit using bipolar transistors of single conductivity type

HUGHES AIRCRAFT CO6 citations61