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Michael Weirich
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Unterhaching, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Power converter and synchronous-asynchronous mode control
Patent number
11,785,687
Issue date
Oct 10, 2023
Infineon Technologies Austria AG
Alexey Evstifeev
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Primary side regulated power supply system with constant current ou...
Patent number
7,525,259
Issue date
Apr 28, 2009
Fairchild Semiconductor Corporation
Michael Weirich
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Supply circuit, in particular for a discharge lamp
Patent number
6,914,394
Issue date
Jul 5, 2005
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Michael Weirich
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Operating device for discharge lamps having a preheating device
Patent number
6,753,659
Issue date
Jun 22, 2004
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Olaf Busse
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Operating device for lamps with a regulated SEPIC converter
Patent number
6,741,040
Issue date
May 25, 2004
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Michael Weirich
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Lamp ballast with SEPIC converter
Patent number
6,690,122
Issue date
Feb 10, 2004
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Michael Weirich
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Circuit arrangement for operating a fluorescent lamp
Patent number
6,657,403
Issue date
Dec 2, 2003
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Bernhard Schemmel
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Ballast for gas discharge lamps with shutdown of the filament heating
Patent number
6,555,970
Issue date
Apr 29, 2003
Patent-Treuhand-Gesellschaft fur Elektrische Glucklampen mbH
Bernhard Schemmel
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Circuit configuration for operating at least one discharge lamp
Patent number
6,198,231
Issue date
Mar 6, 2001
Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
Bernhard Schemmel
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
POWER CONVERTER AND SYNCHRONOUS-ASYNCHROUS MODE CONTROL
Publication number
20230068030
Publication date
Mar 2, 2023
Infineon Technologies Austria AG
Alexey EVSTIFEEV
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Primary side regulated power supply system with constant current ou...
Publication number
20070182387
Publication date
Aug 9, 2007
Michael Weirich
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Supply circuit, in particular for a discharge lamp
Publication number
20040051479
Publication date
Mar 18, 2004
PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
Michael Weirich
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Operating device for lamps with a regulated SEPIC converter
Publication number
20030155872
Publication date
Aug 21, 2003
PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
Michael Weirich
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Operating device for discharge lamps having a preheating device
Publication number
20030122499
Publication date
Jul 3, 2003
PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH, Munchen, Germany
Olaf Busse
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Circuit arrangement for operating a fluorescent lamp
Publication number
20030011328
Publication date
Jan 16, 2003
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Bernhard Schemmel
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Ballast for gas discharge lamps with shutdown of the filament heating
Publication number
20020125807
Publication date
Sep 12, 2002
PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUE
Bernhard Schemmel
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Lamp ballast with sepic converter
Publication number
20020097011
Publication date
Jul 25, 2002
Patent-Treuhand-Gesellschaft fuer elektrische Gleuhlampen mbH
Michael Weirich
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...