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Class Information
Number: 315/209R
Name: Electric lamp and discharge devices: systems > Periodic switch in the supply circuit
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7053562 |
Lamp containing soft-start power supply |
May. 30, 2006 |
| 7049750 |
Lamp having integral voltage controller |
May. 23, 2006 |
| 7049758 |
Method of soft-starting a switching power supply having time-based pulse triggering control |
May. 23, 2006 |
| 7049767 |
High voltage offset detection circuit and method |
May. 23, 2006 |
| 7045969 |
Inverter circuit capable of adjusting power factor |
May. 16, 2006 |
| 7045970 |
Electronic ballast for a lamp to be operated with iterative voltage pulses |
May. 16, 2006 |
| 7045972 |
Lighting method of ultra-high pressure mercury lamp |
May. 16, 2006 |
| 7045973 |
Operating circuit for a dielectrically impeded discharge lamp having an overvoltage protection circuit |
May. 16, 2006 |
| 7042161 |
Ballast with arc protection circuit |
May. 9, 2006 |
| 7042165 |
Driver circuit for LED vehicle lamp |
May. 9, 2006 |
| 7042166 |
Circuit arrangement for operating electric lamps |
May. 9, 2006 |
| 7042167 |
Back light device for liquid crystal displays |
May. 9, 2006 |
| 7042171 |
Multiple-CCFL parallel driving circuit and the associated current balancing control method for liquid crystal display |
May. 9, 2006 |
| 7042173 |
Controllable lighting system with a second communication protocol and appliances for this purpose |
May. 9, 2006 |
| 7038400 |
Constant current Class 3 lighting system |
May. 2, 2006 |
| 7034469 |
Phase-control power controller with analog RMS load voltage regulation |
Apr. 25, 2006 |
| 7030565 |
Lamp control circuit with selectable color signals |
Apr. 18, 2006 |
| 7030566 |
Circuit arrangement for generating an AC voltage from a DC voltage |
Apr. 18, 2006 |
| 7030567 |
Phase-control power controller with digital RMS load voltage regulation |
Apr. 18, 2006 |
| 7030569 |
Direct drive CCFL circuit with controlled start-up mode |
Apr. 18, 2006 |
| 7023143 |
Ballast apparatus and ballasting method of high intensity discharge lamp |
Apr. 4, 2006 |
| 7023289 |
Programmable oscillator |
Apr. 4, 2006 |
| 7015651 |
Light source device having a discharge lamp with high radiance and a current feed controller |
Mar. 21, 2006 |
| 7015655 |
Electronic ballast for a high intensity discharge lamp |
Mar. 21, 2006 |
| 7015660 |
Circuit for driving cold cathode tubes |
Mar. 21, 2006 |
| 7012380 |
Information handling system with dual mode inverter |
Mar. 14, 2006 |
| 7009346 |
Driving an EL panel without DC bias |
Mar. 7, 2006 |
| 7009347 |
Multiple discharge load electronic ballast system |
Mar. 7, 2006 |
| 7009348 |
Multiple channel ballast and networkable topology and system including power line carrier applications |
Mar. 7, 2006 |
| 6998791 |
Discharge power supply apparatus |
Feb. 14, 2006 |
| 6995481 |
Energy saving electrical power control device and method |
Feb. 7, 2006 |
| 6977471 |
Electroluminescent device |
Dec. 20, 2005 |
| 6975070 |
Power source apparatus and vehicular lamp |
Dec. 13, 2005 |
| 6975076 |
Charge pump circuit to operate control circuit |
Dec. 13, 2005 |
| 6975077 |
High intensity discharge lamp ballast apparatus |
Dec. 13, 2005 |
| 6965204 |
Ballasting circuit for optimizing the current in the take-over/warm-up phase |
Nov. 15, 2005 |
| 6965237 |
Device for scanning or detecting electromagnetic waves |
Nov. 15, 2005 |
| 6963176 |
Discharge lamp operation apparatus |
Nov. 8, 2005 |
| 6963178 |
Apparatus for controlling operation of gas discharge devices |
Nov. 8, 2005 |
| 6960891 |
Direct-type back light device |
Nov. 1, 2005 |
| 6958582 |
Lamp current control circuit |
Oct. 25, 2005 |
| 6954038 |
Electronic ballast for a discharge lamp |
Oct. 11, 2005 |
| 6952085 |
Continuous mode ballast with pulsed operation |
Oct. 4, 2005 |
| 6949886 |
Dynamic displays |
Sep. 27, 2005 |
| 6949888 |
Dimming ballast control IC with flash suppression circuit |
Sep. 27, 2005 |
| 6936970 |
Method and apparatus for a unidirectional switching, current limited cutoff circuit for an electronic ballast |
Aug. 30, 2005 |
| 6936973 |
Self-oscillating constant-current gas discharge device lamp driver and method |
Aug. 30, 2005 |
| 6936974 |
Half-bridge inverter for asymmetrical loads |
Aug. 30, 2005 |
| 6933684 |
Electronic ballast using cut and save technology |
Aug. 23, 2005 |
| 6934168 |
Single stage PFC and power converter unit |
Aug. 23, 2005 |
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