Inventor
WEYHRAUCH ERNEST C
US26 patents
⚠️ This page may combine multiple inventors who share the name “WEYHRAUCH ERNEST C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OSRAM SYLVANIA INC
21 patentsUS7049758B2May 23, 2006
Method of soft-starting a switching power supply having time-based pulse triggering control
OSRAM SYLVANIA INC30 citations92
US7116062B2Oct 3, 2006
Method of soft-starting a switching power supply including pulse width modulation circuit
OSRAM SYLVANIA INC13 citations84
US7492079B2Feb 17, 2009
Tungsten halogen lamp having internal power supply including temperature relief
OSRAM SYLVANIA INC7 citations73
US7166964B2Jan 23, 2007
Lamp containing pulse width modulated voltage conversion circuit
OSRAM SYLVANIA INC9 citations73
US7053562B2May 30, 2006
Lamp containing soft-start power supply
OSRAM SYLVANIA INC10 citations73
US7049750B1May 23, 2006
Lamp having integral voltage controller
OSRAM SYLVANIA INC8 citations73
US7352134B2Apr 1, 2008
Lamp containing fixed reverse phase switching power supply with time-based phase pulse triggering control
OSRAM SYLVANIA INC2 citations62
US7274149B2Sep 25, 2007
Lamp with integral pulse width modulated voltage control circuit
OSRAM SYLVANIA INC4 citations62
US7196480B2Mar 27, 2007
Method of soft-starting a switching power supply containing phase-control clipping circuit
OSRAM SYLVANIA INC2 citations62
US7170236B2Jan 30, 2007
Method of setting desired RMS load voltage in a lamp
OSRAM SYLVANIA INC6 citations62
US7170231B2Jan 30, 2007
Lamp that sets desired RMS load voltage with variable pulse width modulation
OSRAM SYLVANIA INC4 citations62
US7301291B1Nov 27, 2007
Power controller having current limited RMS regulated output
OSRAM SYLVANIA INC2 citations60
US7459861B2Dec 2, 2008
Lamp containing voltage conversion circuit including forward/reverse hybrid phase-control clipping circuit
OSRAM SYLVANIA INC0 citations52
US7358689B1Apr 15, 2008
Phase-control power controller for converting a line voltage to a RMS load voltage
OSRAM SYLVANIA INC0 citations52
US7291984B2Nov 6, 2007
Method of reducing RMS load voltage in a lamp using pulse width modulation
OSRAM SYLVANIA INC1 citations51
US7274148B2Sep 25, 2007
Lamp having fixed forward phase switching power supply with time-based triggering
OSRAM SYLVANIA INC0 citations51
US7224151B2May 29, 2007
Fixed phase power controller with analog trigger
OSRAM SYLVANIA INC0 citations51
US7224130B2May 29, 2007
Method of operating a lamp containing a fixed phase power controller
OSRAM SYLVANIA INC0 citations51
US7375475B2May 20, 2008
Lamp containing power controller having current limited RMS regulated output
OSRAM SYLVANIA INC0 citations49
US7527396B2May 5, 2009
Illumination device with thermally isolated integral power supply
OSRAM SYLVANIA INC0 citations39
US7462996B2Dec 9, 2008
Method of operating a lamp with a power controller having current limited RMS regulated output
OSRAM SYLVANIA INC0 citations39