Inventor
BRAND GERALD J
US7 patents
Patents
7 patentsUS5901057AMay 4, 1999
Uninterruptible power supply with fault tolerance in a high voltage environment
DIGITAL EQUIPMENT CORP97 citations97
US5764503AJun 9, 1998
Method and apparatus for providing conditioned AC voltage using current and voltage sensing
DIGITAL EQUIPMENT CORP46 citations95
US5764504AJun 9, 1998
Uninterruptible power supply with fault tolerance in a high voltage environment
DIGITAL EQUIPMENT CORP43 citations95
US5694312ADec 2, 1997
Uninterruptible power supply with fault tolerance in a high voltage environment
DIGITAL EQUIPMENT CORP92 citations95
US5289046AFeb 22, 1994
Power converter with controller for switching between primary and battery power sources
DIGITAL EQUIPMENT CORP99 citations93
US6147885ANov 14, 2000
Method and apparatus for controlling providing of conditioned AC power
DIGITAL EQUIPMENT CORP9 citations72
US5889666AMar 30, 1999
Method and apparatus for controlling providing of conditioned AC power
DIGITAL EQUIPMENT CORP13 citations72