Inventor · disambiguated record
Michael Herfurth
Also filed as: HERFURTH MICHAEL
28 granted patents·2 pending applications·478 citations·filing 1989–2018
97Inventor score
Files withINFINEON TECHNOLOGIES AG11INFINEON TECHNOLOGIES AUSTRIA AG7SIEMENS AG5INFINEON TECHNOLOGIES AUSTRIA4HERFURTH MICHAEL1
Top patents by PatentIndex Score
30 records- 0196US9991791B2System and method for a switched-mode power supplyINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2015·Granted Jun 5, 2018·12 cites·33 claims
- 0293US7746671B2Control circuit for a switch unit of a clocked power supply circuit, and resonance converterINFINEON TECHNOLOGIES AG·Filed 2006·Granted Jun 29, 2010·74 cites·48 claims
- 0393US7397678B2Method for driving a switch that controls current drawn in a power factor correction circuit and a drive circuit thereforINFINEON TECHNOLOGIES AG·Filed 2005·Granted Jul 8, 2008·61 cites·19 claims
- 0490US9763289B2System and method for a switched-mode power supplyINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2015·Granted Sep 12, 2017·9 cites·21 claims
- 0590US5049790AMethod and apparatus for operating at least one gas discharge lampSIEMENS AG·Filed 1989·Granted Sep 17, 1991·94 cites·8 claims
- 0688US7683595B2Method for actuation, and actuating circuit for a switch in a power factor correction circuitINFINEON TECHNOLOGIES AUSTRIA·Filed 2007·Granted Mar 23, 2010·11 cites·31 claims
- 0787US7378807B2Drive circuit for a fluorescent lamp with a diagnosis circuit, and method for diagnosis of a fluorescent lampINFINEON TECHNOLOGIES AG·Filed 2005·Granted May 27, 2008·17 cites·36 claims
- 0886US9590507B1Auxiliary supply for a switched-mode power supply controller using bang-bang regulationINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2015·Granted Mar 7, 2017·5 cites·23 claims
- 0984US7969754B2Control circuit for a switch unit of a clocked power supply circuit, and resonance converterINFINEON TECHNOLOGIES AG·Filed 2009·Granted Jun 28, 2011·21 cites·14 claims
- 1082US7560873B2Method for detection of non-zero-voltage switching operation of a ballast of fluorescent lamps, and ballastINFINEON TECHNOLOGIES AG·Filed 2005·Granted Jul 14, 2009·8 cites·13 claims
- 1181US9537386B2Driver controller with internally calculated average output currentINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2014·Granted Jan 3, 2017·5 cites·15 claims
- 1278US9699848B2System and method for a switched-mode power supplyINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2014·Granted Jul 4, 2017·5 cites·27 claims
- 1377US10148175B2System and method for a switched-mode power supplyINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2018·Granted Dec 4, 2018·1 cites·27 claims
- 1476US7812612B2Method and apparatus for monitoring the operation of a gas discharge lampINFINEON TECHNOLOGIES AUSTRIA·Filed 2007·Granted Oct 12, 2010·6 cites·11 claims
- 1575US8525429B2Method for controlling gas discharge lampsSCHLENK MANFRED·Filed 2010·Granted Sep 3, 2013·4 cites·6 claims
- 1675US8022637B2Method for detection of non-zero-voltage switching operation of a ballast of fluorescent lamps, and ballastINFINEON TECHNOLOGIES AG·Filed 2009·Granted Sep 20, 2011·4 cites·13 claims
- 1771US9602018B2Power converter with reduced power consumption in standby modeHERFURTH MICHAEL·Filed 2012·Granted Mar 21, 2017·4 cites·20 claims
- 1870US6806694B2Switching regulator with dynamic current limiting and drive circuit for the switching regulatorINFINEON TECHNOLOGIES AG·Filed 2003·Granted Oct 19, 2004·24 cites·11 claims
- 1967US7135845B2Drive circuit for a switch in a switching converter and method for driving a switch in a switching converterINFINEON TECHNOLOGIES AG·Filed 2004·Granted Nov 14, 2006·25 cites·21 claims
- 2067US5982642APulsed power supply of switched-mode power suppliesSIEMENS AG·Filed 1999·Granted Nov 9, 1999·36 cites·9 claims
- 2166US7834552B2Controlling a lamp ballastINFINEON TECHNOLOGIES AUSTRIA·Filed 2007·Granted Nov 16, 2010·2 cites·28 claims
- 2258US5594323AControl process for a voltage transformer with a wide input voltage range and the application of such a processSIEMENS AG·Filed 1995·Granted Jan 14, 1997·26 cites·2 claims
- 2353US8378590B2Method for detection of non-zero-voltage switching operation of a ballast of fluorescent lamps, and ballastINFINEON TECHNOLOGIES AG·Filed 2011·Granted Feb 19, 2013·0 cites·9 claims
- 2450US6995467B2Semiconductor componentINFINEON TECHNOLOGIES AG·Filed 2002·Granted Feb 7, 2006·4 cites·13 claims
- 2546US9793796B2Driver controller with AC-adapted and DC-adapted control modesINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2015·Granted Oct 17, 2017·0 cites·17 claims
- 2639US2008252269A1Actuating circuitINFINEON TECHNOLOGIES AUSTRIA·Filed 2007·Application pending·0 cites
- 2738US5596264ACircuit configuration for limiting the output voltage of a clocked voltage regulatorSIEMENS AG·Filed 1995·Granted Jan 21, 1997·9 cites·3 claims
- 2838US5386187AMethod for anticipatory control of a switched-mode power supply for compensating for fluctuations in feed voltage and circuit configuration for performing the methodSIEMENS AG·Filed 1993·Granted Jan 31, 1995·10 cites·4 claims
- 2936US6894421B2Circuit configuration and, in particular, a switch-mode power supplyINFINEON TECHNOLOGIES AG·Filed 2002·Granted May 17, 2005·1 cites·45 claims
- 3031US2003067792A1Voltage transformer with reduced rectifier losses and method for operating the voltage transformerFiled 2002·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Michael Herfurth files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →