Chien-Fu Tang

Person

Hsinchu, TW

People

Patents Grantslast 30 patents

Information Patent Grant
Power path switch circuit
- Patent number 11,784,570
- Issue date Oct 10, 2023
- Richtek Technology Corporation
- Hsin-Yi Wu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spike suppression circuit and power converter and control method th...
- Patent number 11,489,439
- Issue date Nov 1, 2022
- Richtek Technology Corporation
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Low delay time power converter circuit and driver circuit thereof
- Patent number 11,303,218
- Issue date Apr 12, 2022
- Richtek Technology Corporation
- Isaac Y. Chen
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current sensing circuit having self calibration
- Patent number 11,169,179
- Issue date Nov 9, 2021
- Richtek Technology Corporation
- Isaac Y. Chen
- G01 - MEASURING TESTING
Information Patent Grant
Electrostatic discharge protection device and layout design thereof
- Patent number 10,985,157
- Issue date Apr 20, 2021
- Elite Semiconductor Memory Technology Inc.
- Chien-Shao Tang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power control circuit, pulse signal detection circuit, and pulse si...
- Patent number 10,686,383
- Issue date Jun 16, 2020
- Richtek Technology Corporation
- Li-Di Lo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
ZVS control circuit for use in a flyback power converter
- Patent number 10,560,012
- Issue date Feb 11, 2020
- Richtek Technology Corporation
- Ta-Yung Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Communication protocol circuit and discrete-time current sense circ...
- Patent number 10,505,464
- Issue date Dec 10, 2019
- Richtek Technology Corporation
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flyback power converter and secondary side control circuit thereof
- Patent number 10,461,652
- Issue date Oct 29, 2019
- Richtek Technology Corporation
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power switch control circuit and open detection method thereof
- Patent number 10,461,624
- Issue date Oct 29, 2019
- Richtek Technology Corporation
- Pei-Sheng Tsu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flyback power converter circuit and secondary side controller circu...
- Patent number 10,355,612
- Issue date Jul 16, 2019
- Richtek Technology Corporation
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching regulator and control circuit thereof
- Patent number 10,326,351
- Issue date Jun 18, 2019
- Richtek Technology Corporation
- Li-Di Lo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flyback power converter circuit and high voltage start-up circuit t...
- Patent number 10,291,137
- Issue date May 14, 2019
- Richtek Technology Corporation
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flyback power converter with programmable output and control circui...
- Patent number 10,153,703
- Issue date Dec 11, 2018
- Richtek Technology Corporation
- Kuang-Fu Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Mixed mode compensation circuit
- Patent number 9,964,972
- Issue date May 8, 2018
- Richtek Technology Corporation
- Chien-Fu Tang
- G05 - CONTROLLING REGULATING
Information Patent Grant
AC-to-DC power converter and control method and control integrated...
- Patent number 9,966,857
- Issue date May 8, 2018
- Richtek Technology Corporation
- Jiun-Hung Pan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Mixed mode compensation circuit
- Patent number 9,703,302
- Issue date Jul 11, 2017
- Richtek Technology Corporation
- Chien-Fu Tang
- G05 - CONTROLLING REGULATING
Information Patent Grant
Flyback power converter and control circuit thereof
- Patent number 9,627,982
- Issue date Apr 18, 2017
- Richtek Technology Corporation
- Kun-Yu Lin
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flyback power converter with programmable output and control circui...
- Patent number 9,614,449
- Issue date Apr 4, 2017
- Richtek Technology Corporation
- Kuang-Fu Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control circuit of power converter with error detection circuit and...
- Patent number 9,570,989
- Issue date Feb 14, 2017
- Ricktek Technology Corporation
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Mixed mode compensation circuit
- Patent number 9,541,929
- Issue date Jan 10, 2017
- Richtek Technology Corporation
- Chien-Fu Tang
- G05 - CONTROLLING REGULATING
Information Patent Grant
Frequency jittering control circuit and method for a PFM power supply
- Patent number 9,479,063
- Issue date Oct 25, 2016
- Richtek Technology Corp.
- Jiun-Hung Pan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus and method for implementing a multiple function pin in a...
- Patent number 9,450,486
- Issue date Sep 20, 2016
- Richtek Technology Corporation
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flyback power supply circuit with programmable function and control...
- Patent number 9,362,834
- Issue date Jun 7, 2016
- Richtek Technology Corporation
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Voltage converting controller, voltage converting circuit, and cont...
- Patent number 9,287,785
- Issue date Mar 15, 2016
- Richtek Technology Corp.
- Chuh Ching Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Voltage converting controller, voltage converting circuit, and cont...
- Patent number 9,270,186
- Issue date Feb 23, 2016
- Richtek Technology Corp.
- Chuh Ching Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power off delay circuit and method, and audio system with power off...
- Patent number 9,219,352
- Issue date Dec 22, 2015
- Richtek Technology Corp.
- Chi-Hua Lin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Soft-start switching power converting apparatus with pulse-frequenc...
- Patent number 9,203,319
- Issue date Dec 1, 2015
- Richtek Technology Corp.
- Jyun-Che Ho
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Bleeding circuit and method for reducing power consumption of an EM...
- Patent number 9,203,295
- Issue date Dec 1, 2015
- Richtek Technology Corp.
- Yen-Te Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
LED control device for phase-cut dimming system and control method...
- Patent number 9,173,264
- Issue date Oct 27, 2015
- Richtek Technology Corporation
- Jiun-Hung Pan
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
SPIKE SUPPRESSION CIRCUIT AND POWER CONVERTER AND CONTROL METHOD TH...
- Publication number 20220337150
- Publication date Oct 20, 2022
- RICHTEK TECHNOLOGY CORPORATION
- Chien-Fu TANG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER PATH SWITCH CIRCUIT
- Publication number 20220060116
- Publication date Feb 24, 2022
- RICHTEK TECHNOLOGY CORPORATION
- Hsin-Yi Wu
- G01 - MEASURING TESTING
Information Patent Application
CURRENT SENSING CIRCUIT HAVING SELF CALIBRATION
- Publication number 20210270870
- Publication date Sep 2, 2021
- RICHTEK TECHNOLOGY CORPORATION
- Isaac Y. Chen
- G05 - CONTROLLING REGULATING
Information Patent Application
LOW DELAY TIME POWER CONVERTER CIRCUIT AND DRIVER CIRCUIT THEREOF
- Publication number 20210167691
- Publication date Jun 3, 2021
- RICHTEK TECHNOLOGY CORPORATION
- Isaac Y. Chen
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTROSTATIC DISCHARGE PROTECTION DEVICE AND LAYOUT DESIGN THEREOF
- Publication number 20210091070
- Publication date Mar 25, 2021
- ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC.
- CHIEN-SHAO TANG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POWER CONTROL CIRCUIT, PULSE SIGNAL DETECTION CIRCUIT, AND PULSE SI...
- Publication number 20200099307
- Publication date Mar 26, 2020
- RICHTEK TECHNOLOGY CORPORATION
- Li-Di Lo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ZVS CONTROL CIRCUIT FOR USE IN A FLYBACK POWER CONVERTER
- Publication number 20200036280
- Publication date Jan 30, 2020
- RICHTEK TECHNOLOGY CORPORATION
- Ta-Yung Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
COMMUNICATION PROTOCOL CIRCUIT AND DISCRETE-TIME CURRENT SENSE CIRC...
- Publication number 20190296651
- Publication date Sep 26, 2019
- RICHTEK TECHNOLOGY CORPORATION
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SWITCHING REGULATOR AND CONTROL CIRCUIT THEREOF
- Publication number 20190140534
- Publication date May 9, 2019
- RICHTEK TECHNOLOGY CORPORATION
- Li-Di Lo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FLYBACK POWER CONVERTER AND SECONDARY SIDE CONTROL CIRCUIT THEREOF
- Publication number 20190115844
- Publication date Apr 18, 2019
- RICHTEK TECHNOLOGY CORPORATION
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FLYBACK POWER CONVERTER CIRCUIT AND HIGH VOLTAGE START-UP CIRCUIT T...
- Publication number 20190028033
- Publication date Jan 24, 2019
- RICHTEK TECHNOLOGY CORPORATION
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FLYBACK POWER CONVERTER CIRCUIT AND SECONDARY SIDE CONTROLLER CIRCU...
- Publication number 20180212528
- Publication date Jul 26, 2018
- RICHTEK TECHNOLOGY CORPORATION
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SWITCH CONTROL CIRCUIT AND OPEN DETECTION METHOD THEREOF
- Publication number 20180138797
- Publication date May 17, 2018
- RICHTEK TECHNOLOGY CORPORATION
- Pei-Sheng Tsu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FLYBACK POWER CONVERTER WITH PROGRAMMABLE OUTPUT AND CONTROL CIRCUI...
- Publication number 20170163162
- Publication date Jun 8, 2017
- RICHTEK TECHNOLOGY CORPORATION
- Kuang-Fu Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FREQUENCY JITTERING CONTROL CIRCUIT AND METHOD FOR A PFM POWER SUPPLY
- Publication number 20170005647
- Publication date Jan 5, 2017
- RICHTEK TECHNOLOGY CORPORATION
- Jiun-Hung PAN
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MIXED MODE COMPENSATION CIRCUIT
- Publication number 20160327967
- Publication date Nov 10, 2016
- Richtek Technology Corporation
- Chien-Fu Tang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
MIXED MODE COMPENSATION CIRCUIT
- Publication number 20160327969
- Publication date Nov 10, 2016
- Richtek Technology Corporation
- Chien-Fu Tang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
MIXED MODE COMPENSATION CIRCUIT
- Publication number 20160327968
- Publication date Nov 10, 2016
- Richtek Technology Corporation
- Chien-Fu Tang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
AC-TO-DC POWER CONVERTER AND CONTROL METHOD AND CONTROL INTEGRATED...
- Publication number 20160308449
- Publication date Oct 20, 2016
- Richtek Technology Corporation
- Jiun-Hung PAN
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONTROL CIRCUIT OF POWER CONVERTER
- Publication number 20160190916
- Publication date Jun 30, 2016
- Richtek Technology Corporation
- Chien-Fu TANG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FLYBACK POWER CONVERTER WITH PROGRAMMABLE OUTPUT AND CONTROL CIRCUI...
- Publication number 20160105116
- Publication date Apr 14, 2016
- RICHTEK TECHNOLOGY CORPORATION
- Kuang-Fu Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INPUT VOLTAGE DETECTION CIRCUIT WITH A PARAMETER SETTING FUNCTION A...
- Publication number 20160069938
- Publication date Mar 10, 2016
- RICHTEK TECHNOLOGY CORPORATION
- Hsin-Yi WU
- G01 - MEASURING TESTING
Information Patent Application
FLYBACK POWER SUPPLY CIRCUIT WITH PROGRAMMABLE FUNCTION AND CONTROL...
- Publication number 20150372603
- Publication date Dec 24, 2015
- RICHTEK TECHNOLOGY CORPORATION
- Chien-Fu Tang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
VOLTAGE CONVERTING CONTROLLER, VOLTAGE CONVERTING CIRCUIT, AND CONT...
- Publication number 20150372599
- Publication date Dec 24, 2015
- RICHTEK TECHNOLOGY CORP.
- Chuh Ching Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
VOLTAGE CONVERTING CONTROLLER, VOLTAGE CONVERTING CIRCUIT, AND CONT...
- Publication number 20150372602
- Publication date Dec 24, 2015
- RICHTEK TECHNOLOGY CORP.
- Chuh Ching Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FLYBACK POWER CONVERTER AND CONTROL CIRCUIT THEREOF
- Publication number 20150326129
- Publication date Nov 12, 2015
- RICHTEK TECHNOLOGY CORPORATION
- Kun-Yu Lin
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SOFT-START SWITCHING POWER CONVERTING APPARATUS WITH PULSE-FREQUENC...
- Publication number 20150249392
- Publication date Sep 3, 2015
- RICHTEK TECHNOLOGY CORP.
- Jyun-Che Ho
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONTROL CIRCUIT FOR POWER CONVERTING CIRCUIT
- Publication number 20150162843
- Publication date Jun 11, 2015
- Richtek Technology Corporation
- Isaac Y. CHEN
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FREQUENCY JITTER CIRCUIT AND METHOD
- Publication number 20150130523
- Publication date May 14, 2015
- RICHTEK TECHNOLOGY CORP.
- Chien-Fu TANG
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SOFT-START SWITCHING POWER CONVERTING APPARATUS
- Publication number 20150009719
- Publication date Jan 8, 2015
- RICHTEK TECHNOLOGY CORP.
- Jyun-Che Ho
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Chien-Fu Tang

Person

Patents Grantslast 30 patents

Power path switch circuit

Spike suppression circuit and power converter and control method th...

Low delay time power converter circuit and driver circuit thereof

Current sensing circuit having self calibration

Electrostatic discharge protection device and layout design thereof

Power control circuit, pulse signal detection circuit, and pulse si...

ZVS control circuit for use in a flyback power converter

Communication protocol circuit and discrete-time current sense circ...

Flyback power converter and secondary side control circuit thereof

Power switch control circuit and open detection method thereof

Flyback power converter circuit and secondary side controller circu...

Switching regulator and control circuit thereof

Flyback power converter circuit and high voltage start-up circuit t...

Flyback power converter with programmable output and control circui...

Mixed mode compensation circuit

AC-to-DC power converter and control method and control integrated...

Mixed mode compensation circuit

Flyback power converter and control circuit thereof

Flyback power converter with programmable output and control circui...

Control circuit of power converter with error detection circuit and...

Mixed mode compensation circuit

Frequency jittering control circuit and method for a PFM power supply

Apparatus and method for implementing a multiple function pin in a...

Flyback power supply circuit with programmable function and control...

Voltage converting controller, voltage converting circuit, and cont...

Voltage converting controller, voltage converting circuit, and cont...

Power off delay circuit and method, and audio system with power off...

Soft-start switching power converting apparatus with pulse-frequenc...

Bleeding circuit and method for reducing power consumption of an EM...

LED control device for phase-cut dimming system and control method...

Patents Applicationslast 30 patents

SPIKE SUPPRESSION CIRCUIT AND POWER CONVERTER AND CONTROL METHOD TH...

POWER PATH SWITCH CIRCUIT

CURRENT SENSING CIRCUIT HAVING SELF CALIBRATION

LOW DELAY TIME POWER CONVERTER CIRCUIT AND DRIVER CIRCUIT THEREOF

ELECTROSTATIC DISCHARGE PROTECTION DEVICE AND LAYOUT DESIGN THEREOF

POWER CONTROL CIRCUIT, PULSE SIGNAL DETECTION CIRCUIT, AND PULSE SI...

ZVS CONTROL CIRCUIT FOR USE IN A FLYBACK POWER CONVERTER

COMMUNICATION PROTOCOL CIRCUIT AND DISCRETE-TIME CURRENT SENSE CIRC...

SWITCHING REGULATOR AND CONTROL CIRCUIT THEREOF

FLYBACK POWER CONVERTER AND SECONDARY SIDE CONTROL CIRCUIT THEREOF

FLYBACK POWER CONVERTER CIRCUIT AND HIGH VOLTAGE START-UP CIRCUIT T...

FLYBACK POWER CONVERTER CIRCUIT AND SECONDARY SIDE CONTROLLER CIRCU...

POWER SWITCH CONTROL CIRCUIT AND OPEN DETECTION METHOD THEREOF

FLYBACK POWER CONVERTER WITH PROGRAMMABLE OUTPUT AND CONTROL CIRCUI...

FREQUENCY JITTERING CONTROL CIRCUIT AND METHOD FOR A PFM POWER SUPPLY

MIXED MODE COMPENSATION CIRCUIT

MIXED MODE COMPENSATION CIRCUIT

MIXED MODE COMPENSATION CIRCUIT

AC-TO-DC POWER CONVERTER AND CONTROL METHOD AND CONTROL INTEGRATED...

CONTROL CIRCUIT OF POWER CONVERTER

FLYBACK POWER CONVERTER WITH PROGRAMMABLE OUTPUT AND CONTROL CIRCUI...

INPUT VOLTAGE DETECTION CIRCUIT WITH A PARAMETER SETTING FUNCTION A...

FLYBACK POWER SUPPLY CIRCUIT WITH PROGRAMMABLE FUNCTION AND CONTROL...

VOLTAGE CONVERTING CONTROLLER, VOLTAGE CONVERTING CIRCUIT, AND CONT...

VOLTAGE CONVERTING CONTROLLER, VOLTAGE CONVERTING CIRCUIT, AND CONT...

FLYBACK POWER CONVERTER AND CONTROL CIRCUIT THEREOF

SOFT-START SWITCHING POWER CONVERTING APPARATUS WITH PULSE-FREQUENC...

CONTROL CIRCUIT FOR POWER CONVERTING CIRCUIT

FREQUENCY JITTER CIRCUIT AND METHOD

SOFT-START SWITCHING POWER CONVERTING APPARATUS