Inventor · disambiguated record
Hengchun Mao
Also filed as: MAO HENGCHUN
98 granted patents·13 pending applications·1,824 citations·filing 1994–2025
99Inventor score
Files withLUCENT TECHNOLOGIES INC28MAO HENGCHUN21FUTUREWEI TECHNOLOGIES INC12QUANTENTECH LTD9QUANTEN TECH INC8
Top patents by PatentIndex Score
111 records- 0199US6037755ASwitching controller for a buck+boost converter and method of operation thereofLUCENT TECHNOLOGIES INC·Filed 1998·Granted Mar 14, 2000·155 cites·30 claims
- 0297US8385032B1High efficiency bridgeless PFC converter and methodFUTUREWEI TECHNOLOGIES INC·Filed 2011·Granted Feb 26, 2013·29 cites·20 claims
- 0396US10637295B2Wireless power transfer system and methodNUVOLTA TECH·Filed 2017·Granted Apr 28, 2020·18 cites·19 claims
- 0496US9929595B2Wireless power transfer system and methodNUVOLTA TECH·Filed 2015·Granted Mar 27, 2018·17 cites·20 claims
- 0596US9800193B2Dynamically reconfigurable motors and generators and systemsMAO HENGCHUN·Filed 2016·Granted Oct 24, 2017·8 cites·20 claims
- 0696US9344042B2High efficiency power amplifiers with advanced power solutionsMAO HENGCHUN·Filed 2014·Granted May 17, 2016·29 cites·14 claims
- 0795US10541635B2Motor system and control methodQUANTEN TECH INC·Filed 2018·Granted Jan 21, 2020·7 cites·20 claims
- 0895US10505487B2Motor/generator system and fault tolerant control methodQUANTEN TECH INC·Filed 2018·Granted Dec 10, 2019·7 cites·20 claims
- 0995US9077255B2Resonant converters and methodsFUTUREWEI TECHNOLOGIES INC·Filed 2013·Granted Jul 7, 2015·22 cites·20 claims
- 1094US11923733B2High efficiency high density motor and generator with multiple airgapsQUANTENTECH LTD·Filed 2021·Granted Mar 5, 2024·2 cites·20 claims
- 1194US9998018B2Resonant converters and methodsFUTUREWEI TECHNOLOGIES INC·Filed 2016·Granted Jun 12, 2018·10 cites·19 claims
- 1294US9755534B2High efficiency high frequency resonant power conversionNUVOLTA TECH INC·Filed 2014·Granted Sep 5, 2017·14 cites·18 claims
- 1394US9178438B2Apparatus for resonant convertersFUTUREWEI TECHNOLOGIES INC·Filed 2013·Granted Nov 3, 2015·17 cites·20 claims
- 1494US6388429B1Controller for power factor corrector and method of operation thereofFiled 2000·Granted May 14, 2002·101 cites·25 claims
- 1592US9467057B2Resonant converters and methodsFUTUREWEI TECHNOLOGIES INC·Filed 2015·Granted Oct 11, 2016·8 cites·20 claims
- 1692US6674658B2Power converter including circuits for improved operational control of synchronous rectifiers thereinNETPOWER TECHNOLOGIES INC·Filed 2002·Granted Jan 6, 2004·84 cites·26 claims
- 1791US10693385B2High efficiency high frequency resonant power conversionQUANTEN TECH LIMITED·Filed 2017·Granted Jun 23, 2020·6 cites·6 claims
- 1890US10020849B2Self-canceling magnetic structures for transferring power and communication signalsX2 POWER TECH LIMITED·Filed 2017·Granted Jul 10, 2018·3 cites·20 claims
- 1990US9991742B2Zero voltage switching half-bridge convertersNUVOLTA TECH·Filed 2015·Granted Jun 5, 2018·6 cites·19 claims
- 2090US9627972B2Power converter package structure and methodFUTUREWEI TECHNOLOGIES INC·Filed 2015·Granted Apr 18, 2017·7 cites·19 claims
- 2189US10566922B2Dynamically reconfigurable motors and generators and systems with efficiency optimizationQUANTEN TECH INC·Filed 2017·Granted Feb 18, 2020·3 cites·20 claims
- 2288US9240748B2Dynamically reconfigurable motor and generator systemsMAO HENGCHUN·Filed 2014·Granted Jan 19, 2016·6 cites·20 claims
- 2388US8957644B2High efficiency high power density power architecture based on buck-boost regulators with a pass-through bandMAO HENGCHUN·Filed 2010·Granted Feb 17, 2015·12 cites·20 claims
- 2488US8717717B2High efficiency power regulator and methodMAO HENGCHUN·Filed 2011·Granted May 6, 2014·6 cites·21 claims
- 2587US8670250B2Common mode noise reduction apparatus and methodFU DIANBO·Filed 2011·Granted Mar 11, 2014·10 cites·20 claims
- 2687US6760235B2Soft start for a synchronous rectifier in a power converterNETPOWER TECHNOLOGIES INC·Filed 2002·Granted Jul 6, 2004·56 cites·24 claims
- 2787US6034513ASystem and method for controlling power factor and power converter employing the sameLUCENT TECHNOLOGIES INC·Filed 1997·Granted Mar 7, 2000·84 cites·22 claims
- 2886US10951150B2Motor system with distributed winding structuresQUANTEN TECH INC·Filed 2018·Granted Mar 16, 2021·2 cites·18 claims
- 2986US6574124B2Plural power converters with individual conditioned error signals shared on a current sharing busNETPOWER TECHNOLOGIES INC·Filed 2002·Granted Jun 3, 2003·57 cites·43 claims
- 3086US5574636AZero-voltage-transition (ZVT) 3-phase PWM voltage link convertersINNOVATIVE TECH CENTER·Filed 1994·Granted Nov 12, 1996·70 cites·7 claims
- 3185US11870377B2Multi-phase motor/generator system with harmonic injectionQUANTENTECH LTD·Filed 2019·Granted Jan 9, 2024·2 cites·20 claims
- 3285US9190911B2Auxiliary resonant apparatus for LLC convertersFUTUREWEI TECHNOLOGIES INC·Filed 2013·Granted Nov 17, 2015·7 cites·18 claims
- 3385US5912549ACurrent mode controller for continuous conduction mode power factor correction circuit and method of operation thereofLUCENT TECHNOLOGIES INC·Filed 1997·Granted Jun 15, 1999·80 cites·21 claims
- 3485US2025015744A1Multi-Harmonic Field Oriented Control for Poly-Phase Motor/Generator SystemsQUANTENTECH LTD·Filed 2024·Application pending·0 cites
- 3584US8908393B2Soft transition apparatus and method for switching power convertersYE LIMING·Filed 2011·Granted Dec 9, 2014·8 cites·20 claims
- 3684US5956243AThree-level boost rectifier with voltage doubling switchLUCENT TECHNOLOGIES INC·Filed 1998·Granted Sep 21, 1999·74 cites·14 claims
- 3784US2025317005A1High Performance Variable Ratio Switched Capacitor Power ConverterMAO HENGCHUN·Filed 2025·Application pending·0 cites
- 3883US5943224APost regulator with energy recovery snubber and power supply employing the sameLUCENT TECHNOLOGIES INC·Filed 1998·Granted Aug 24, 1999·67 cites·21 claims
- 3982US11689136B2Dynamically reconfigurable motors and generators and systems with efficiency optimizationQUANTEN TECH INC·Filed 2020·Granted Jun 27, 2023·1 cites·20 claims
- 4081US9590495B2Holdup time circuit and method for bridgeless PFC converterFU DIANBO·Filed 2011·Granted Mar 7, 2017·5 cites·20 claims
- 4181US6320764B1Regulation circuit for a power converter and method of operation thereofFiled 2000·Granted Nov 20, 2001·39 cites·18 claims
- 4280US11631998B2High performance wireless power transfer and power conversion technologiesMAO HENGCHUN·Filed 2020·Granted Apr 18, 2023·2 cites·20 claims
- 4380US10454312B2Wireless power transfer control apparatus and methodX2 POWER TECH LIMITED·Filed 2017·Granted Oct 22, 2019·3 cites·18 claims
- 4480US6300818B1Temperature compensation circuit for semiconductor switch and method of operation thereofLUCENT TECHNOLOGIES INC·Filed 2000·Granted Oct 9, 2001·34 cites·6 claims
- 4579US10720849B2High efficiency high frequency resonant power conversionQUANTEN TECH LIMITED·Filed 2017·Granted Jul 21, 2020·2 cites·12 claims
- 4679US9122287B2Dual frequency control of buck-boost regulator with a pass through bandMAO HENGCHUN·Filed 2012·Granted Sep 1, 2015·5 cites·20 claims
- 4778US12113466B2Multi-harmonic field oriented control for poly-phase motor/generator systemsQUANTENTECH LTD·Filed 2021·Granted Oct 8, 2024·0 cites·20 claims
- 4878US6466461B2Method and circuit for reducing voltage level variation in a bias voltage in a power converterNETPOWER TECHNOLOGIES INC·Filed 2002·Granted Oct 15, 2002·35 cites·24 claims
- 4977US11146199B2Multi-phase motor system and control methodQUANTEN TECH INC·Filed 2019·Granted Oct 12, 2021·2 cites·20 claims
- 5077US10847299B2Magnetic structures with self-enclosed magnetic pathsQUANTEN TECH LIMITED·Filed 2016·Granted Nov 24, 2020·1 cites·8 claims
Showing the top 50 of 111 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hengchun Mao 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 →