Inventor · disambiguated record
Feng-Cheng Tsao
Also filed as: TSAO FENG CHENG
9 granted patents·452 citations·filing 2004–2008
91Inventor score
Files withSYSTEM GENERAL CORP9
Top patents by PatentIndex Score
9 records- 0197US7352595B2Primary-side controlled switching regulatorSYSTEM GENERAL CORP·Filed 2005·Granted Apr 1, 2008·81 cites·27 claims
- 0296US7362593B2Switching control circuit having off-time modulation to improve efficiency of primary-side controlled power supplySYSTEM GENERAL CORP·Filed 2004·Granted Apr 22, 2008·138 cites·11 claims
- 0395US7061780B2Switching control circuit with variable switching frequency for primary-side-controlled power convertersSYSTEM GENERAL CORP·Filed 2004·Granted Jun 13, 2006·137 cites·15 claims
- 0492US7426120B2Switching control circuit having a valley voltage detector to achieve soft switching for a resonant power converterSYSTEM GENERAL CORP·Filed 2005·Granted Sep 16, 2008·33 cites·14 claims
- 0582US7466569B2Power converter having phase lock circuit for quasi-resonant soft switchingSYSTEM GENERAL CORP·Filed 2005·Granted Dec 16, 2008·12 cites·15 claims
- 0679US7471121B2Transistor drive circuit of power converter operating in a wide voltage rangeSYSTEM GENERAL CORP·Filed 2006·Granted Dec 30, 2008·17 cites·9 claims
- 0777US7663352B2Control circuit for measuring and regulating output current of CCM power converterSYSTEM GENERAL CORP·Filed 2007·Granted Feb 16, 2010·13 cites·12 claims
- 0876US7492613B2Control circuit of power converter having adaptive bias for detecting reflected voltage of transformerSYSTEM GENERAL CORP·Filed 2005·Granted Feb 17, 2009·13 cites·6 claims
- 0971US7561447B2Primary-side controlled switching regulatorSYSTEM GENERAL CORP·Filed 2008·Granted Jul 14, 2009·8 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →