Inventor · disambiguated record
Guichao Hua
Also filed as: HUA GUICHAO · HUA GUICHAO C
32 granted patents·7 pending applications·1,115 citations·filing 1992–2013
98Inventor score
Top patents by PatentIndex Score
39 records- 0195US5418704AZero-voltage-transition pulse-width-modulated convertersINNOVATIVE TECH CENTER·Filed 1993·Granted May 23, 1995·112 cites·2 claims
- 0294US5442540ASoft-switching PWM convertersINNOVATIVE TECH CENTER·Filed 1992·Granted Aug 15, 1995·134 cites·4 claims
- 0393US7791903B2DC-DC flyback converter having a synchronous rectification self-driven circuitBEL POWER HANGZHOU CO LTD·Filed 2006·Granted Sep 7, 2010·95 cites·12 claims
- 0492US8552942B2LED drive circuit for SCR dimmingHUA GUICHAO·Filed 2010·Granted Oct 8, 2013·21 cites·19 claims
- 0592US5486752AZero-current transition PWM convertersINNOVATIVE TECH CENTER·Filed 1994·Granted Jan 23, 1996·90 cites·15 claims
- 0690US6005780ASingle-stage AC/DC conversion with PFC-tapped transformersFiled 1997·Granted Dec 21, 1999·75 cites·21 claims
- 0790US5262930AZero-voltage transition PWM convertersINNOVATIVE TECH CENTER·Filed 1992·Granted Nov 16, 1993·101 cites·3 claims
- 0888US8674621B2Constant current control circuit with multiple outputs for LED driverGE LIANGAN·Filed 2010·Granted Mar 18, 2014·19 cites·10 claims
- 0987US6084792APower converter with circuits for providing gate drivingVPT INC·Filed 1999·Granted Jul 4, 2000·106 cites·62 claims
- 1085US8853957B2High efficiency constant current LED driverINVENTRONICS HANGZHOU INC·Filed 2013·Granted Oct 7, 2014·9 cites·11 claims
- 1185US8783910B2LED lamp system utilizing a hollow liquid-cooled deviceHUA GUICHAO·Filed 2010·Granted Jul 22, 2014·10 cites·17 claims
- 1283US6563719B1Self-driven synchronous rectification schemeBEL FUSE INC·Filed 2002·Granted May 13, 2003·48 cites·9 claims
- 1383US5999433AHalf-bridge DC to DC converter with low output current rippleVPT INC·Filed 1998·Granted Dec 7, 1999·89 cites·17 claims
- 1482US8454185B2Hollow, liquid cooling and strip-shaped LED lampHUA GUICHAO·Filed 2010·Granted Jun 4, 2013·10 cites·9 claims
- 1580US8629664B2Multi-path constant current driving circuitGE LIANG AN·Filed 2010·Granted Jan 14, 2014·5 cites·21 claims
- 1677US6583993B2Self-driven synchronous rectification scheme for wide output rangeBEL FUSE INC·Filed 2001·Granted Jun 24, 2003·28 cites·16 claims
- 1775US8077481B2Primary sampling current controlled synchronous rectifying drive circuitHUA GUICHAO·Filed 2009·Granted Dec 13, 2011·10 cites·10 claims
- 1875US6879497B2Multiple output power adapterBEL FUSE INC·Filed 2001·Granted Apr 12, 2005·27 cites·10 claims
- 1975US5790389AConsolidated soft-switching AC/DC convertersVIRGINIA POWER TECHNOLOGIES IN·Filed 1996·Granted Aug 4, 1998·51 cites·16 claims
- 2069US8294381B2PWM dimming circuit for LEDGE LIANGAN·Filed 2010·Granted Oct 23, 2012·3 cites·19 claims
- 2167US7957163B2Current controlled synchronous rectifying drive circuitINVENTRONICS HANGZHOU CO LTD·Filed 2009·Granted Jun 7, 2011·12 cites·14 claims
- 2266US8867250B2High output current split package A/C adapterHUA GUICHAO·Filed 2008·Granted Oct 21, 2014·7 cites·10 claims
- 2366US8659919B2Circuit to improve light load power factor of power supplyHUA GUICHAO·Filed 2010·Granted Feb 25, 2014·3 cites·2 claims
- 2462US7012817B2Converter with integrated active clamp circuit and bias circuitBEL FUSE INC·Filed 2004·Granted Mar 14, 2006·19 cites·6 claims
- 2561US9185756B2Load driving device and system, limiting point control method and deviceGE LIANG AN·Filed 2011·Granted Nov 10, 2015·1 cites·14 claims
- 2660US6118673ASingle-stage AC/DC converters with saturable conductor PFCVIRGINIA POWER TECHNOLOGIES IN·Filed 1998·Granted Sep 12, 2000·27 cites·20 claims
- 2754US9380678B2Auxiliary power supply circuit of two wire dimmerJIANG DELAI·Filed 2011·Granted Jun 28, 2016·2 cites·6 claims
- 2853US8369118B2Synchronous rectifying drive circuit with energy feedback for voltage doubler rectiferINVENTRONICS HANGZHOU INC·Filed 2010·Granted Feb 5, 2013·1 cites·20 claims
- 2947US2011080102A1High efficiency constant current led driverGE LIANGAN·Filed 2010·Application pending·0 cites
- 3044US9398665B2Constant current drive for LED light sourceINVENTRONICS HANGZHOU INC·Filed 2012·Granted Jul 19, 2016·0 cites·19 claims
- 3144US9155141B2Multi-path constant current driving circuitGE LIANG AN·Filed 2010·Granted Oct 6, 2015·0 cites·19 claims
- 3241US2015282268A1Led driver, and method and device for controlling fixed value of led driverINVENTRONICS HANGZHOU INC·Filed 2013·Application pending·0 cites
- 3340US9215767B2Device and system for load drivingHUA GUICHAO·Filed 2011·Granted Dec 15, 2015·0 cites·15 claims
- 3440US8866409B2Constant-current LED driver circuit and output voltage adjustable circuit and method thereofGE LIANG AN·Filed 2010·Granted Oct 21, 2014·0 cites·20 claims
- 3540US2013241433A1Method, apparatus and system for controlling light sourceGE LIANG AN·Filed 2011·Application pending·0 cites
- 3640US2013099686A1Light emitting diode (led) dimming systemGE LIANG AN·Filed 2010·Application pending·0 cites
- 3739US2013093348A1Method, apparatus and system for controlling light sourceGE LIANG AN·Filed 2010·Application pending·0 cites
- 3838US2002144841A1High current SMD jumperBEL FUSE INC·Filed 2002·Application pending·0 cites
- 3934US2010182117A1High Frequency Magnetic Current TransducerWU XINKE·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →