Inventor · disambiguated record
Yuancheng Ren
Also filed as: REN YUANCHENG
88 granted patents·11 pending applications·847 citations·filing 2003–2019
99Inventor score
Files withJOULWATT TECH (HANGZHOU) CO LTD21CHENGDU MONOLITHIC POWER SYS13MONOLITHIC POWER SYSTEMS INC13REN YUANCHENG9VIRGINIA TECH INTELL PROP8
Top patents by PatentIndex Score
99 records- 0197US8581518B2Triac dimmer compatible switching mode power supply and method thereofKUANG NAIXING·Filed 2011·Granted Nov 12, 2013·75 cites·19 claims
- 0296US10505442B2Synchronous rectification control circuit, method and flyback switch circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Dec 10, 2019·16 cites·10 claims
- 0396US8773090B2Voltage regulator with adaptive hysteretic controlOUYANG QIAN·Filed 2011·Granted Jul 8, 2014·26 cites·17 claims
- 0496US7071660B2Two-stage voltage regulators with adjustable intermediate bus voltage, adjustable switching frequency, and adjustable number of active phasesVIRGINIA TECH INTELL PROP·Filed 2004·Granted Jul 4, 2006·148 cites·20 claims
- 0595US10153684B2Bleeder circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2016·Granted Dec 11, 2018·37 cites·9 claims
- 0695US9608532B2Body diode conduction optimization in MOSFET synchronous rectifierWONG PITLEONG·Filed 2015·Granted Mar 28, 2017·26 cites·23 claims
- 0794US8976547B2Switching mode power supply with synchronous rectifying control circuitREN YUANCHENG·Filed 2012·Granted Mar 10, 2015·19 cites·20 claims
- 0892US9479046B2Multi-mode PFC control and control method thereofCHENGDU MONOLITHIC POWER SYS·Filed 2014·Granted Oct 25, 2016·13 cites·20 claims
- 0992US9093909B2Switching mode power supply and the method thereofCHENGDU MONOLITHIC POWER SYS·Filed 2013·Granted Jul 28, 2015·14 cites·11 claims
- 1092US8766605B2Bridgeless PFC converter and the method thereofREN YUANCHENG·Filed 2011·Granted Jul 1, 2014·15 cites·16 claims
- 1190US9397577B2Switching mode power supplies with primary side regulation and associated methods of controlCHENGDU MONOLITHIC POWER SYS·Filed 2015·Granted Jul 19, 2016·8 cites·20 claims
- 1290US9081397B2Constant on time multi-phase switching converter and control method thereofCHENGDU MONOLITHIC POWER SYS·Filed 2012·Granted Jul 14, 2015·11 cites·17 claims
- 1390US8645753B2Power system with hot-swap and the method thereofYANG ERIC·Filed 2011·Granted Feb 4, 2014·11 cites·20 claims
- 1489US10143051B2Bleeder circuit and control method thereof, and LED control circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Nov 27, 2018·7 cites·10 claims
- 1589US10090750B1Isolating switch circuit and control method thereofJOULWATT TECH HANGZHOU CO LTD·Filed 2018·Granted Oct 2, 2018·6 cites·20 claims
- 1689US9035566B2Light emitting diode driver systems and associated methods of controlDU LEI·Filed 2011·Granted May 19, 2015·12 cites·13 claims
- 1788US8917076B2Off-line regulator with pass device and associated methodHSING MICHAEL R·Filed 2012·Granted Dec 23, 2014·13 cites·18 claims
- 1887US10411685B2Circuit and method for detecting current zero-crossing point, and circuit and method for detecting load voltageJOULWATT TECH HANGZHOU CO LTD·Filed 2015·Granted Sep 10, 2019·4 cites·18 claims
- 1987US9407151B2Flyback converter with current controlled low power modeCHENGDU MONOLITHIC POWER SYS·Filed 2014·Granted Aug 2, 2016·8 cites·15 claims
- 2087US8274801B2Switching mode power supply with burst mode and associated methods of controlSHI YANG·Filed 2010·Granted Sep 25, 2012·10 cites·30 claims
- 2186US7583065B2Hybrid filter for high slew rate output current applicationVIRGINIA TECH INTELL PROP·Filed 2009·Granted Sep 1, 2009·20 cites·11 claims
- 2285US10355604B2Control circuit and control method for switch circuit and switching-mode power supply circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Jul 16, 2019·5 cites·13 claims
- 2385US8525423B2Circuitry for driving light emitting diodes and associated methodsYU BO·Filed 2011·Granted Sep 3, 2013·11 cites·12 claims
- 2484US9595885B2Isolated switching mode power supply and the method thereofCHENGDU MONOLITHIC POWER SYS·Filed 2013·Granted Mar 14, 2017·7 cites·9 claims
- 2584US9431845B2Switching charger, the control circuit and the control method thereofCHENGDU MONOLITHIC POWER SYS·Filed 2013·Granted Aug 30, 2016·11 cites·17 claims
- 2684US8952632B2Driver systems for driving light emitting diodes and associated driving methodsDU LEI·Filed 2011·Granted Feb 10, 2015·7 cites·10 claims
- 2783US8907592B2Power systems for driving light emitting diodes and associated methods of controlHU JIN·Filed 2011·Granted Dec 9, 2014·7 cites·12 claims
- 2883US8576588B2Switching mode power supply with primary side controlKUANG NAIXING·Filed 2011·Granted Nov 5, 2013·6 cites·20 claims
- 2982US8115402B2Method and apparatus for driving multiple parallel discharge lampsKUANG NAIXING·Filed 2009·Granted Feb 14, 2012·9 cites·9 claims
- 3082US7560912B2Hybrid filter for high slew rate output current applicationVIRGINIA TECH INTELL PROP·Filed 2006·Granted Jul 14, 2009·17 cites·6 claims
- 3181US10396658B2Power supply protection circuit and methodJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Aug 27, 2019·4 cites·2 claims
- 3281US8400790B2Latch-off of real time synchronous rectification for light load controlZHANG JUNMING·Filed 2010·Granted Mar 19, 2013·7 cites·23 claims
- 3380US8922177B2Multiphase converter with controllable phase shiftREN YUANCHENG·Filed 2012·Granted Dec 30, 2014·6 cites·17 claims
- 3480US8102680B2Smart driving method for synchronous rectifier and its apparatus thereofREN YUANCHENG·Filed 2009·Granted Jan 24, 2012·16 cites·25 claims
- 3580US7394203B2Method and system for open lamp protectionMONOLITHIC POWER SYSTEMS INC·Filed 2005·Granted Jul 1, 2008·6 cites·12 claims
- 3680US7196914B2Power converters having capacitor resonant with transformer leakage inductanceVIRGINIA TECH INTELL PROP·Filed 2004·Granted Mar 27, 2007·35 cites·22 claims
- 3780US7016203B2Self-driven circuit for synchronous rectifier DC/DC converterVIRGINIA TECH INTELL PROP·Filed 2004·Granted Mar 21, 2006·35 cites·18 claims
- 3879US8981666B2Light emitting element driving circuitYU BO·Filed 2011·Granted Mar 17, 2015·5 cites·19 claims
- 3979US7254047B2Power converters having output capacitor resonant with autotransformer leakage inductanceVIRGINIA TECH INTELL PROP·Filed 2005·Granted Aug 7, 2007·15 cites·23 claims
- 4078US10205448B2Switch control circuit and switch circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Feb 12, 2019·3 cites·20 claims
- 4177US10218272B2Control circuit and control method for switch power supply, and switch power supplyJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Feb 26, 2019·2 cites·18 claims
- 4277US9577514B2Peak sample circuit for AC voltage and method thereofCHENGDU MONOLITHIC POWER SYS·Filed 2014·Granted Feb 21, 2017·4 cites·17 claims
- 4377US9252766B2Load detecting circuits and the method thereofREN YUANCHENG·Filed 2012·Granted Feb 2, 2016·5 cites·18 claims
- 4477US7423384B2Lamp voltage feedback system and method for open lamp protection and shorted lamp protectionMONOLITHIC POWER SYSTEMS INC·Filed 2005·Granted Sep 9, 2008·6 cites·26 claims
- 4575US9065348B2Isolated switching mode power supply and the method thereofCHENGDU MONOLITHIC POWER SYS·Filed 2013·Granted Jun 23, 2015·4 cites·10 claims
- 4675US6819574B2Self-driven circuit for synchronous rectifier DC/DC converterVIRGINIA TECH INTELL PROP·Filed 2003·Granted Nov 16, 2004·24 cites·24 claims
- 4774US8971061B2Off time control method for switching regulatorLI EN·Filed 2010·Granted Mar 3, 2015·5 cites·8 claims
- 4874US8270185B2Switching mode power supply with a spectrum shaping circuitHU JIN·Filed 2010·Granted Sep 18, 2012·4 cites·9 claims
- 4973US7825605B2DA/AC convert for driving cold cathode fluorescent lampMONOLITHIC POWER SYSTEMS INC·Filed 2006·Granted Nov 2, 2010·11 cites·30 claims
- 5073US7728666B2Close-loop class-D audio amplifier and control method thereofMONOLITHIC POWER SYSTEMS INC·Filed 2008·Granted Jun 1, 2010·6 cites·16 claims
Showing the top 50 of 99 patent records by PatentIndex Score.
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