| Patent | Date |
|---|
High voltage sensing mechanism with integrated on-off switch
Grant 8,917,084 - Konopka , et al. December 23, 2 | 2014-12-23 |
High Voltage Sensing Mechanism with Integrated On-Off Switch
App 20130002239 - Konopka; John G. ; et al. | 2013-01-03 |
Ballast with Arc Protection Circuit
App 20080067950 - Yu; Qinghong ; et al. | 2008-03-20 |
Two light level ballast
Grant 7,218,063 - Konopka , et al. May 15, 2 | 2007-05-15 |
Device for locating and identifying circuit breakers
Grant 7,157,896 - Konopka January 2, 2 | 2007-01-02 |
Two light level ballast
App 20060267516 - Konopka; John G. ; et al. | 2006-11-30 |
Two light level ballast
Grant 7,084,579 - Konopka , et al. August 1, 2 | 2006-08-01 |
Two light level ballast
App 20060125416 - Konopka; John G. ; et al. | 2006-06-15 |
Ballast with arc protection circuit
Grant 7,042,161 - Konopka May 9, 2 | 2006-05-09 |
Device for locating and identifying circuit breakers
App 20060033485 - Konopka; John G. | 2006-02-16 |
Controlled resonant half-bridge inverter for power supplies and electronic ballasts
App 20050068795 - Konopka, John G. | 2005-03-31 |
Ballast with inverter startup circuit
Grant 6,856,100 - Konopka February 15, 2 | 2005-02-15 |
Ballast with lamp-to-earth-ground fault protection circuit
Grant 6,768,274 - Konopka , et al. July 27, 2 | 2004-07-27 |
Dimming control system for electronic ballasts
Grant 6,727,662 - Konopka , et al. April 27, 2 | 2004-04-27 |
Ballast with protection circuit for quickly responding to electrical disturbances
Grant 6,720,739 - Konopka April 13, 2 | 2004-04-13 |
Ballast with lamp-to-earth-ground fault protection circuit
App 20040061453 - Konopka, John G. ; et al. | 2004-04-01 |
Dimming Control System For Electronic Ballasts
App 20040061452 - Konopka, John G. ; et al. | 2004-04-01 |
Ballast with protection circuit for preventing inverter startup during an output ground-fault condition
Grant 6,657,400 - Konopka , et al. December 2, 2 | 2003-12-02 |
Ballast with protection circuit for preventing inverter startup during an output ground-fault condition
App 20030062850 - Konopka, John G. ; et al. | 2003-04-03 |
Dimming Control System For Electronic Ballasts
App 20030062854 - Konopka, John G. ; et al. | 2003-04-03 |
Method And Circuit For Controlling Current In A High Pressure Discharge Lamp
App 20030062849 - Prasad, Himamshu V. ; et al. | 2003-04-03 |
Ballast with protection circuit for quickly responding to electrical disturbances
App 20030052621 - Konopka, John G. | 2003-03-20 |
Dimming control system for electronic ballasts
Grant 6,534,931 - Konopka , et al. March 18, 2 | 2003-03-18 |
Ballast With Fast-responding Lamp-out Detection Circuit
App 20030025464 - Konopka, John G. | 2003-02-06 |
Ballasts with tapped inductor arrangements for igniting and powering high intensity discharge lamps
Grant 6,194,845 - Konopka , et al. February 27, 2 | 2001-02-27 |
Electronic ballast with two-step boost converter and method
Grant 5,998,930 - Upadhyay , et al. December 7, 1 | 1999-12-07 |
Electronic ballast with lamp current valley-fill power factor correction
Grant 5,994,847 - Konopka November 30, 1 | 1999-11-30 |
In-rush current reduction circuit for boost converters and electronic ballasts
Grant 5,834,924 - Konopka , et al. November 10, 1 | 1998-11-10 |
Power supply and electronic ballast with a novel boost converter control circuit
Grant 5,729,098 - Konopka , et al. March 17, 1 | 1998-03-17 |
Single switch ballast with integrated power factor correction
Grant 5,694,006 - Konopka December 2, 1 | 1997-12-02 |
Power-line communication system using pulse transmission on the AC line
Grant 5,691,691 - Merwin , et al. November 25, 1 | 1997-11-25 |
Single transistor ballast with filament preheating
Grant 5,608,292 - Konopka , et al. March 4, 1 | 1997-03-04 |
Circuit for quickly energizing electronic ballast
Grant 5,586,016 - Konopka , et al. December 17, 1 | 1996-12-17 |
Lamp circuit limited to a booster in which the power output decreases with increasing frequency
Grant 5,475,285 - Konopka December 12, 1 | 1995-12-12 |
Circuit for powering a fluorescent lamp having a transistor common to both inverter and the boost converter and method for operating such a circuit
Grant 5,434,477 - Crouse , et al. July 18, 1 | 1995-07-18 |
Control circuit
Grant 5,194,781 - Konopka March 16, 1 | 1993-03-16 |
Ballast circuit utilizing a boost to heat lamp filaments and to strike the lamps
Grant 5,191,263 - Konopka March 2, 1 | 1993-03-02 |
Circuit for driving at least one gas discharge lamp
Grant 5,144,195 - Konopka , et al. September 1, 1 | 1992-09-01 |
Saturable transformer regulator for flyback power supply
Grant 4,967,335 - Konopka October 30, 1 | 1990-10-30 |
Power supply with automatic input voltage doubling
Grant 4,937,731 - Konopka June 26, 1 | 1990-06-26 |
Fluorescent lamp power supply
Grant 4,920,302 - Konopka April 24, 1 | 1990-04-24 |
Constant current source and battery charger
Grant 4,885,522 - Konopka December 5, 1 | 1989-12-05 |
Constant current source and battery charger
Grant 4,862,013 - Konopka August 29, 1 | 1989-08-29 |
DC fan speed control
Grant 4,856,078 - Konopka August 8, 1 | 1989-08-08 |
Constant current source and battery charger
Grant 4,829,259 - Konopka May 9, 1 | 1989-05-09 |
Low cost automatic voltage doubler switch
Grant 4,805,083 - Konopka February 14, 1 | 1989-02-14 |
Automatic voltage doubler switch
Grant 4,783,729 - Konopka November 8, 1 | 1988-11-08 |
Power supply start-up circuit with high frequency transformer
Grant 4,764,857 - Konopka August 16, 1 | 1988-08-16 |
Low voltage shutdown circuit
Grant 4,709,320 - Konopka November 24, 1 | 1987-11-24 |
Memory Circuit
Grant 3,746,886 - Konopka July 17, 1 | 1973-07-17 |
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