Inventor
VELDMAN PAUL R
NL14 patents
⚠️ This page may combine multiple inventors who share the name “VELDMAN PAUL R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHILIPS CORP
10 patentsUS6028400AFeb 22, 2000
Discharge lamp circuit which limits ignition voltage across a second discharge lamp after a first discharge lamp has already ignited
PHILIPS CORP68 citations94
US6320357B1Nov 20, 2001
Circuit arrangement
PHILIPS CORP100 citations92
US4935672AJun 19, 1990
High frequency ballast for a gas discharge lamp
PHILIPS CORP28 citations90
US5068573ANov 26, 1991
Power supply with energy storage for improved voltage regulation
PHILIPS CORP16 citations73
US4952845AAug 28, 1990
DC/AC converter for igniting and operating a discharge lamp
PHILIPS CORP12 citations73
US6134132AOct 17, 2000
Circuit arrangement
PHILIPS CORP10 citations69
US5525872AJun 11, 1996
Discharge lamp operating circuit with wide range dimming control
PHILIPS CORP11 citations66
US5959411ASep 28, 1999
One pin IC control circuit for a discharge lamp
PHILIPS CORP5 citations62
US5903110AMay 11, 1999
Igniting circuit operated by varying the impedance value of the controller
PHILIPS CORP6 citations60
US5150018ASep 22, 1992
Gas discharge lamp with grid and control circuits therefor
PHILIPS CORP5 citations58
PHILIPS ELECTRONICS NA
4 patentsUS5666280ASep 9, 1997
High voltage integrated circuit driver for half-bridge circuit employing a jet to emulate a bootstrap diode
PHILIPS ELECTRONICS NA60 citations94
US6008590ADec 28, 1999
Integrated circuit inverter control having a multi-function pin
PHILIPS ELECTRONICS NA48 citations92
US5696431ADec 9, 1997
Inverter driving scheme for capacitive mode protection
PHILIPS ELECTRONICS NA49 citations92
US5680017AOct 21, 1997
Driving scheme for minimizing ignition flash
PHILIPS ELECTRONICS NA34 citations92