Inventor · disambiguated record
Chien-Fu Tang
Also filed as: TANG CHIEN-FU
59 granted patents·18 pending applications·169 citations·filing 2007–2025
98Inventor score
Top patents by PatentIndex Score
77 records- 0195US11303218B2Low delay time power converter circuit and driver circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2020·Granted Apr 12, 2022·4 cites·32 claims
- 0293US10560012B1ZVS control circuit for use in a flyback power converterRICHTEK TECHNOLOGY CORP·Filed 2019·Granted Feb 11, 2020·10 cites·14 claims
- 0393US8570020B2Frequency control circuit and method for a non-constant frequency voltage regulatorTANG CHIEN-FU·Filed 2010·Granted Oct 29, 2013·16 cites·10 claims
- 0488US8253507B2Fixed-frequency control circuit and method for pulse width modulationTANG CHIEN-FU·Filed 2010·Granted Aug 28, 2012·10 cites·10 claims
- 0585US8350548B2Frequency control circuit and method for a non-constant frequency voltage regulatorRICHTEK TECHNOLOGY CORP·Filed 2010·Granted Jan 8, 2013·8 cites·10 claims
- 0684US9479063B2Frequency jittering control circuit and method for a PFM power supplyPAN JIUN-HUNG·Filed 2012·Granted Oct 25, 2016·9 cites·29 claims
- 0783US9362834B2Flyback power supply circuit with programmable function and control method thereofTANG CHIEN-FU·Filed 2015·Granted Jun 7, 2016·5 cites·23 claims
- 0883US8704590B2Control circuit for power converter and method thereofRICHTEK TECHNOLOGY CORP·Filed 2013·Granted Apr 22, 2014·6 cites·9 claims
- 0983US8508203B2Control circuit of switching regulator and control method thereof and transistor device thereforTANG CHIEN FU·Filed 2010·Granted Aug 13, 2013·7 cites·13 claims
- 1082US8320149B2Multi-chip module with master-slave analog signal transmission functionTANG CHIEN FU·Filed 2010·Granted Nov 27, 2012·6 cites·11 claims
- 1181US9130464B2Soft-start switching power converting apparatus with pulse-frequency modulation techniqueRICHTEK TECHNOLOGY CORP·Filed 2013·Granted Sep 8, 2015·5 cites·20 claims
- 1281US8295022B2Overstress protection apparatus and methodTANG CHIEN-FU·Filed 2010·Granted Oct 23, 2012·6 cites·8 claims
- 1380US9104216B2Mixed mode compensation circuit and method for a power converterRICHTEK TECHNOLOGY CORP·Filed 2012·Granted Aug 11, 2015·5 cites·31 claims
- 1480US8723552B2Configuration and method for improving noise immunity of a floating gate driver circuitTSENG PEI-KAI·Filed 2012·Granted May 13, 2014·8 cites·32 claims
- 1580US8634212B2Controller and controlling method for power converterTANG CHIEN-FU·Filed 2011·Granted Jan 21, 2014·6 cites·5 claims
- 1679US10461624B2Power switch control circuit and open detection method thereofRICHTEK TECHNOLOGY CORP·Filed 2017·Granted Oct 29, 2019·2 cites·4 claims
- 1779US9614449B2Flyback power converter with programmable output and control circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2015·Granted Apr 4, 2017·3 cites·17 claims
- 1879US8779806B2Circuit and method for improving noise immunity of a single-end level shifter in a floating gate driverRICHTEK TECHNOLOGY CORP·Filed 2013·Granted Jul 15, 2014·4 cites·20 claims
- 1976US9203295B2Bleeding circuit and method for reducing power consumption of an EMI filterLEE YEN-TE·Filed 2012·Granted Dec 1, 2015·5 cites·11 claims
- 2076US7576522B2Circuit and method for soft start of a switching regulator from a residual voltageRICHTEK TECHNOLOGY CORP·Filed 2008·Granted Aug 18, 2009·7 cites·10 claims
- 2173US8643292B2Digital dimming device and digital dimming methodTANG CHIEN-FU·Filed 2010·Granted Feb 4, 2014·3 cites·15 claims
- 2272US10461652B2Flyback power converter and secondary side control circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2018·Granted Oct 29, 2019·2 cites·23 claims
- 2372US9042126B2Switching power converting apparatus, switching controller for the same, and method of controlling a bipolar junction transistor of the sameCHENG JUNG-PEI·Filed 2013·Granted May 26, 2015·5 cites·15 claims
- 2472US8823424B1Circuit and method for improving noise immunity of a single-end level shifter in a floating gate driverRICHTEK TECHNOLOGY CORP·Filed 2014·Granted Sep 2, 2014·3 cites·17 claims
- 2571US8724349B2Apparatus and method for output voltage calibration of a primary feedback flyback power moduleTANG CHIEN-FU·Filed 2011·Granted May 13, 2014·3 cites·8 claims
- 2670US10326351B2Switching regulator and control circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2018·Granted Jun 18, 2019·2 cites·24 claims
- 2770US9627982B2Flyback power converter and control circuit thereofLIN KUN-YU·Filed 2015·Granted Apr 18, 2017·2 cites·21 claims
- 2870US8754617B2Reverse shunt regulatorTANG CHIEN-FU·Filed 2011·Granted Jun 17, 2014·3 cites·9 claims
- 2970US8400127B2Average current regulator and driver circuit thereof and method for regulating average currentCHEN AN-TUNG·Filed 2010·Granted Mar 19, 2013·3 cites·44 claims
- 3069US2025293607A1Asymmetrical half-bridge flyback power conversion circuit that can directly obtain output power information without isolation and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2025·Application pending·0 cites
- 3167US11489439B1Spike suppression circuit and power converter and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Nov 1, 2022·0 cites·20 claims
- 3266US8717091B2Control circuit for power converter and method thereofRICHTEK TECHNOLOGY CORP·Filed 2013·Granted May 6, 2014·2 cites·13 claims
- 3365US9136766B2Switching power converting apparatusRICHTEK TECHNOLOGY CORP·Filed 2013·Granted Sep 15, 2015·2 cites·18 claims
- 3464US8791725B2High voltage offset detection circuitRICHTEK TECHNOLOGY CORP·Filed 2013·Granted Jul 29, 2014·1 cites·8 claims
- 3564US2025293606A1Control circuit of flyback converter with low current lossRICHTEK TECHNOLOGY CORP·Filed 2025·Application pending·0 cites
- 3663US9093914B2Bootstrap circuit and method for controlling the sameRICHTEK TECHNOLOGY CORP·Filed 2013·Granted Jul 28, 2015·2 cites·14 claims
- 3760US9270186B2Voltage converting controller, voltage converting circuit, and control method for voltage convertingRICHTEK TECHNOLOGY CORP·Filed 2014·Granted Feb 23, 2016·2 cites·10 claims
- 3860US9024607B2Control circuit for power converter and method thereofRICHTEK TECHNOLOGY CORP·Filed 2013·Granted May 5, 2015·1 cites·10 claims
- 3957US2025379526A1High accuracy power conversion system having multiplex pin and control circuit and method thereofRICHTEK TECHNOLOGY CORP·Filed 2024·Application pending·0 cites
- 4054US9703302B2Mixed mode compensation circuitRICHTEK TECHNOLOGY CORP·Filed 2016·Granted Jul 11, 2017·0 cites·18 claims
- 4154US9219352B2Power off delay circuit and method, and audio system with power off delayRICHTEK TECHNOLOGY CORP·Filed 2014·Granted Dec 22, 2015·0 cites·13 claims
- 4254US2013162359A1Frequency jitter circuit and methodRICHTEK TECHNOLOGY CORP·Filed 2013·Application pending·0 cites
- 4353US9541929B2Mixed mode compensation circuitRICHTEK TECHNOLOGY CORP·Filed 2014·Granted Jan 10, 2017·0 cites·6 claims
- 4452US2015130523A1Frequency jitter circuit and methodRICHTEK TECHNOLOGY CORP·Filed 2014·Application pending·0 cites
- 4551US10153703B2Flyback power converter with programmable output and control circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2017·Granted Dec 11, 2018·0 cites·17 claims
- 4651US9966857B2AC-to-DC power converter and control method and control integrated circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2016·Granted May 8, 2018·0 cites·31 claims
- 4751US2013169370A1Frequency jitter circuit and methodRICHTEK TECHNOLOGY CORP·Filed 2013·Application pending·0 cites
- 4850US9964972B2Mixed mode compensation circuitRICHTEK TECHNOLOGY CORP·Filed 2016·Granted May 8, 2018·0 cites·16 claims
- 4950US7800425B2On-chip mode-setting circuit and method for a chipRICHTEK TECHNOLOGY CORP·Filed 2007·Granted Sep 21, 2010·1 cites·10 claims
- 5050US2014056036A1Ac-to-dc power converter and control method and control integrated circuit thereofRICHTECK TECHNOLOGY CORP·Filed 2013·Application pending·0 cites
Showing the top 50 of 77 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →