Inventor · disambiguated record
Chuh-Ching Li
Also filed as: LI CHUH-CHING
27 granted patents·1 pending application·566 citations·filing 2004–2020
97Inventor score
Top patents by PatentIndex Score
28 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
- 0395US7362592B2Switching control circuit for primary-side controlled power convertersSYSTEM GENERAL CORP·Filed 2004·Granted Apr 22, 2008·126 cites·17 claims
- 0492US8587964B2Control circuit with burst mode and extended valley switching for quasi-resonant power converterYANG TA-YUNG·Filed 2011·Granted Nov 19, 2013·14 cites·18 claims
- 0592US7426120B2Switching 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
- 0690US7965528B2Method and apparatus for measuring the switching current of power converter operated at continuous current modeSYSTEM GENERAL CORP·Filed 2008·Granted Jun 21, 2011·33 cites·13 claims
- 0789US8094468B2Control circuit having off-time modulation to operate power converter at quasi-resonance and in continuous current modeYANG TA-YUNG·Filed 2008·Granted Jan 10, 2012·26 cites·14 claims
- 0884US11139742B2Switching controller circuit and method for controlling flyback power converterRICHTEK TECHNOLOGY CORP·Filed 2020·Granted Oct 5, 2021·2 cites·22 claims
- 0984US7671578B2Detection circuit for sensing the input voltage of transformerSYSTEM GENERAL CORP·Filed 2006·Granted Mar 2, 2010·12 cites·6 claims
- 1082US8432109B2Method and apparatus for a LED driver with high power factorYANG TA-YUNG·Filed 2011·Granted Apr 30, 2013·8 cites·20 claims
- 1182US7466569B2Power converter having phase lock circuit for quasi-resonant soft switchingSYSTEM GENERAL CORP·Filed 2005·Granted Dec 16, 2008·12 cites·15 claims
- 1281US10412796B2LED drive circuit with a programmable input for LED lightingFAIRCHILD SEMICONDUCTOR·Filed 2015·Granted Sep 10, 2019·2 cites·8 claims
- 1381US8742677B2LED drive circuit with a programmable input for LED lightingYANG TA-YUNG·Filed 2010·Granted Jun 3, 2014·3 cites·17 claims
- 1479US9049764B2LED drive circuit with a programmable input for LED lightingSYSTEM GENERAL CORP·Filed 2014·Granted Jun 2, 2015·2 cites·23 claims
- 1579US7471121B2Transistor drive circuit of power converter operating in a wide voltage rangeSYSTEM GENERAL CORP·Filed 2006·Granted Dec 30, 2008·17 cites·9 claims
- 1679US7405595B2High-side transistor driver having positive feedback for improving speed and power savingSYSTEM GENERAL CORP·Filed 2005·Granted Jul 29, 2008·10 cites·16 claims
- 1777US7663352B2Control circuit for measuring and regulating output current of CCM power converterSYSTEM GENERAL CORP·Filed 2007·Granted Feb 16, 2010·13 cites·12 claims
- 1876US11139744B2Flyback power converter and secondary side controller circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2020·Granted Oct 5, 2021·1 cites·24 claims
- 1976US7492613B2Control 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
- 2071US7561447B2Primary-side controlled switching regulatorSYSTEM GENERAL CORP·Filed 2008·Granted Jul 14, 2009·8 cites·4 claims
- 2170US8559196B2Output voltage control circuit of power converter for light-load power savingYANG TA-YUNG·Filed 2010·Granted Oct 15, 2013·3 cites·20 claims
- 2267US11026309B2LED drive circuit with a programmable input for LED lightingFAIRCHILD SEMICONDUCTOR·Filed 2019·Granted Jun 1, 2021·0 cites·20 claims
- 2366US10531528B2LED drive circuit with a programmable input for LED lightingFAIRCHILD SEMICONDUCTOR·Filed 2019·Granted Jan 7, 2020·0 cites·20 claims
- 2461US7701734B2Detection circuit to detect input voltage of transformer and detecting method for the sameSYSTEM GENERAL CORP·Filed 2006·Granted Apr 20, 2010·5 cites·10 claims
- 2557US7518416B2Method and apparatus for detecting switching current of magnetic device operated in continuous current modeSYSTEM GENERAL CORP·Filed 2007·Granted Apr 14, 2009·4 cites·10 claims
- 2650US11018597B2Flyback power converter circuit and control circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2020·Granted May 25, 2021·0 cites·20 claims
- 2744US8854841B2High-speed reflected signal detection for primary-side controlled power convertersYANG TA-YUNG·Filed 2010·Granted Oct 7, 2014·0 cites·7 claims
- 2838US2011254537A1Method and Apparatus for Detecting CCM Operation of a Magnetic DeviceSYSTEM GENERAL CORP·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →