Inventor

ROHRBAUGH MARK E

US7 patents

Patents

7 patents

US5428276AJun 27, 1995

Automatic adjustment of commutation delay for brushless DC motor for improved efficiency

SGS THOMSON MICROELECTRONICS45 citations95

US5306988AApr 26, 1994

Method and apparatus for operating polyphase dc motors

SGS THOMSON MICROELECTRONICS68 citations95

US5285135AFeb 8, 1994

Automatic adjustment of commutation delay for brushless DC motor for improved efficiency

SGS THOMSON MICROELECTRONICS48 citations95

US5481167AJan 2, 1996

Amplifier and method for detecting the bemf of a coil of a polyphase sensorless DC motor

SGS THOMSON MICROELECTRONICS31 citations92

US5512805AApr 30, 1996

Method and apparatus for determining reverse rotation of a polyphase DC motor

SGS THOMSON MICROELECTRONICS12 citations73

US5477171ADec 19, 1995

Full wave rectifier using current mirror bridge

SGS THOMSON MICROELECTRONICS4 citations62

US5349521ASep 20, 1994

Full wave rectifier using a current mirror bridge

SGS THOMSON MICROELECTRONICS2 citations62