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Isaac Y. Chen
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Jubei, TW
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Patents Grants
last 30 patents
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
Dimmer interface circuit and buffer stage circuit thereof
Patent number
11,297,702
Issue date
Apr 5, 2022
Richtek Technology Corporation
Yu-Wen Chang
H03 - BASIC ELECTRONIC CIRCUITRY
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
Light emitting device driving apparatus and dimming control circuit...
Patent number
10,980,090
Issue date
Apr 13, 2021
Richtek Technology Corporation
Yu-Min Chen
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Output stage circuit for transmitting data via bus
Patent number
10,972,090
Issue date
Apr 6, 2021
Richtek Technology Corporation
Yu-Wen Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Power supply apparatus and master power supply circuit, slave power...
Patent number
10,804,883
Issue date
Oct 13, 2020
Richtek Technology Corporation
Isaac Y. Chen
G06 - COMPUTING CALCULATING COUNTING
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
Memory circuit having pseudo ground
Patent number
10,629,270
Issue date
Apr 21, 2020
Richtek Technology Corporation
Isaac Y. Chen
G11 - INFORMATION STORAGE
Information
Patent Grant
Transmission interface having noise reduction function
Patent number
10,587,312
Issue date
Mar 10, 2020
Richtek Technology Corporation
Tong-Cheng Jao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
Power conversion device, slow soft-startup circuit, and power conve...
Patent number
10,498,254
Issue date
Dec 3, 2019
Richtek Technology Corporation
Jyun-Che Ho
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power supply system and short circuit and/or bad connection detecti...
Patent number
10,476,374
Issue date
Nov 12, 2019
Richtek Technology Corporation
Yi-Min Shiu
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
Control circuit and method for programming an output voltage of a p...
Patent number
10,312,818
Issue date
Jun 4, 2019
Richtek Technology Corp.
Isaac Y. Chen
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Control circuit and method for programming an output voltage of a p...
Patent number
10,312,819
Issue date
Jun 4, 2019
Richtek Technology Corp.
Isaac Y. Chen
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
Control circuit and method for programming an output voltage of a p...
Patent number
10,236,781
Issue date
Mar 19, 2019
Richtek Technology Corporation
Isaac Y. Chen
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power supply system and short circuit and/or bad connection detecti...
Patent number
10,181,785
Issue date
Jan 15, 2019
Richtek Technology Corporation
Yi-Min Shiu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Overvoltage protection method and buck switching regulator having o...
Patent number
10,177,558
Issue date
Jan 8, 2019
Richtek Technology Corporation
Jyun-Che Ho
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Adaptive buck converter with monitor circuit and charging cable usi...
Patent number
10,170,923
Issue date
Jan 1, 2019
Richtek Technology Corporation
Ta-Yung Yang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Control circuit and method for programming an output voltage of a p...
Patent number
10,097,094
Issue date
Oct 9, 2018
Richtek Technology Corporation
Isaac Y. Chen
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Multi-phase switching regulator and control circuit and control met...
Patent number
10,097,092
Issue date
Oct 9, 2018
Richtek Technology Corporation
Jyun-Che Ho
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching regulator with PFC function and control circuit and contr...
Patent number
10,014,783
Issue date
Jul 3, 2018
Richtek Technology Corporation
Yi-Wei Lee
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Adaptive buck converter and charging cable using the same
Patent number
9,979,214
Issue date
May 22, 2018
Richtek Technology Corporation
Ta-Yung Yang
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
Power supply system and short circuit and/or bad connection detecti...
Patent number
9,912,224
Issue date
Mar 6, 2018
Richtek Technology Corporation
Yi-Min Shiu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
ELECTRONIC DEVICE AND METHOD FOR AUDIO SIGNAL PROCESSING
Publication number
20240322798
Publication date
Sep 26, 2024
Elite Semiconductor Microelectronics Technology Inc.
Chih-Sheng CHANG
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
IC DIE FORMING METHOD AND IC DIE STRUCTURE
Publication number
20230387004
Publication date
Nov 30, 2023
Elite Semiconductor Microelectronics Technology Inc.
Chih-Sheng Chang
H01 - BASIC ELECTRIC ELEMENTS
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
DIMMER INTERFACE CIRCUIT AND BUFFER STAGE CIRCUIT THEREOF
Publication number
20210227659
Publication date
Jul 22, 2021
RICHTEK TECHNOLOGY CORPORATION
Yu-Wen Chang
H03 - BASIC ELECTRONIC CIRCUITRY
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
OUTPUT STAGE CIRCUIT FOR TRANSMITTING DATA VIA BUS
Publication number
20210119625
Publication date
Apr 22, 2021
RICHTEK TECHNOLOGY CORPORATION
Yu-Wen Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT EMITTING DEVICE DRIVING APPARATUS AND DIMMING CONTROL CIRCUIT...
Publication number
20210112639
Publication date
Apr 15, 2021
RICHTEK TECHNOLOGY CORPORATION
Yu-Min Chen
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Power Supply Apparatus and Master Power Supply Circuit, Slave Power...
Publication number
20200136593
Publication date
Apr 30, 2020
RICHTEK TECHNOLOGY CORPORATION
Isaac Y. Chen
G06 - COMPUTING CALCULATING COUNTING
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
MEMORY CIRCUIT HAVING PSEUDO GROUND
Publication number
20190378577
Publication date
Dec 12, 2019
RICHTEK TECHNOLOGY CORPORATION
Isaac Y. Chen
G11 - INFORMATION STORAGE
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
POWER SUPPLY SYSTEM AND SHORT CIRCUIT AND/OR BAD CONNECTION DETECTI...
Publication number
20190058391
Publication date
Feb 21, 2019
RICHTEK TECHNOLOGY CORPORATION
Yi-Min Shiu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER SUPPLY SYSTEM AND SHORT CIRCUIT AND/OR BAD CONNECTION DETECTI...
Publication number
20190058390
Publication date
Feb 21, 2019
RICHTEK TECHNOLOGY CORPORATION
Yi-Min Shiu
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
OVERVOLTAGE PROTECTION METHOD AND BUCK SWITCHING REGULATOR HAVING O...
Publication number
20180375320
Publication date
Dec 27, 2018
RICHTEK TECHNOLOGY CORPORATION
Jyun-Che Ho
G05 - CONTROLLING REGULATING
Information
Patent Application
CONTROL CIRCUIT AND METHOD FOR PROGRAMMING AN OUTPUT VOLTAGE OF A P...
Publication number
20180367044
Publication date
Dec 20, 2018
RICHTEK TECHNOLOGY CORPORATION
ISAAC Y. CHEN
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER CONVERSION DEVICE, SLOW SOFT-STARTUP CIRCUIT, AND POWER CONVE...
Publication number
20180309385
Publication date
Oct 25, 2018
RICHTEK TECHNOLOGY CORPORATION
Jyun-Che Ho
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
CONTROL CIRCUIT AND METHOD FOR PROGRAMMING AN OUTPUT VOLTAGE OF A P...
Publication number
20180301994
Publication date
Oct 18, 2018
RICHTEK TECHNOLOGY CORPORATION
ISAAC Y. CHEN
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
CONTROL CIRCUIT AND METHOD FOR PROGRAMMING AN OUTPUT VOLTAGE OF A P...
Publication number
20180301993
Publication date
Oct 18, 2018
RICHTEK TECHNOLOGY CORPORATION
ISAAC Y. CHEN
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ADAPTIVE BUCK CONVERTER WITH MONITOR CIRCUIT AND CHARGING CABLE USI...
Publication number
20180233937
Publication date
Aug 16, 2018
Richtek Technology Corporation
Ta-Yung YANG
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 SUPPLY SYSTEM AND SHORT CIRCUIT AND/OR BAD CONNECTION DETECTI...
Publication number
20180159423
Publication date
Jun 7, 2018
RICHTEK TECHNOLOGY CORPORATION
Yi-Min Shiu
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
Switching Regulator with PFC Function and Control Circuit and Contr...
Publication number
20170331381
Publication date
Nov 16, 2017
RICHTEK TECHNOLOGY CORPORATION
Yi-Wei Lee
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MOBILE DEVICE CHARGER FOR CHARGING MOBILE DEVICE AND RELATED ADAPTI...
Publication number
20170201101
Publication date
Jul 13, 2017
Richtek Technology Corporation
Ta-Yung YANG
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ADAPTIVE BUCK CONVERTER AND CHARGING CABLE USING THE SAME
Publication number
20170201107
Publication date
Jul 13, 2017
Richtek Technology Corporation
Ta-Yung YANG
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
LIGHT EMITTING DEVICE DRIVER CIRCUIT AND DRIVING METHOD OF LIGHT EM...
Publication number
20170196055
Publication date
Jul 6, 2017
RICHTEK TECHNOLOGY CORPORATION
Tong-Cheng Jao
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
CONTROL CIRCUIT AND METHOD OF A POWER CONVERTER
Publication number
20170005579
Publication date
Jan 5, 2017
RICHTEK TECHNOLOGY CORPORATION
ISAAC Y. CHEN
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER