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Tainan Hsien, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus and method for output voltage calibration of a primary fe...
Patent number
8,724,349
Issue date
May 13, 2014
Richtek Technology Corp.
Chien-Fu Tang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Feedback circuit and control method for an isolated power converter
Patent number
8,503,196
Issue date
Aug 6, 2013
Richtek Technology Corp.
Liang-Pin Tai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Duty feed forward method and apparatus for modulating duty cycle of...
Patent number
8,169,206
Issue date
May 1, 2012
Richtek Technology Corp.
Tsai-Fu Chang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Quick response width modulation for a voltage regulator
Patent number
8,063,617
Issue date
Nov 22, 2011
Richtek Technology Corp.
Ting-Hung Wang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Duty feed forward method and apparatus for modulating a duty of a P...
Patent number
8,040,122
Issue date
Oct 18, 2011
Richtek Technology Corp.
Tsai-Fu Chang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for improving the light load efficiency of a s...
Patent number
8,031,493
Issue date
Oct 4, 2011
Richtek Technology Corp.
Pei-Lun Huang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Single-chip common-drain JFET device and its applications
Patent number
7,838,900
Issue date
Nov 23, 2010
Richtek Technology Corp.
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Single-chip common-drain JFET device and its applications
Patent number
7,838,902
Issue date
Nov 23, 2010
Richtek Technology Corp.
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Single-chip common-drain JFET device and its applications
Patent number
7,838,901
Issue date
Nov 23, 2010
Richtek Technology Corp.
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Control circuit and method for a constant on-time PWM switching con...
Patent number
7,834,606
Issue date
Nov 16, 2010
Richtek Technology Corp.
Kuo-Ping Liu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Dual MOSFET package
Patent number
7,786,604
Issue date
Aug 31, 2010
Richtek Technology Corp.
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Voltage regulator and method for generating indicator signal in vol...
Patent number
7,781,921
Issue date
Aug 24, 2010
Richtek Technology Corporation
Chien-Hui Wang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Single-chip common-drain JFET device and its applications
Patent number
7,768,033
Issue date
Aug 3, 2010
Richtek Technology Corp.
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Single-chip common-drain JFET device and its applications
Patent number
7,759,695
Issue date
Jul 20, 2010
Richtek Technology Corp.
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Control circuit and method for a DC-to-DC converter to improve tran...
Patent number
7,701,190
Issue date
Apr 20, 2010
Richtek Technology Corp.
Jiun-Chiang Chen
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method and circuit for reducing switching ringing in switching regu...
Patent number
7,696,731
Issue date
Apr 13, 2010
Richtek Technology Corporation
Jian-Rong Huang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Quick turn on apparatus and method for a NMOSFET switch
Patent number
7,576,588
Issue date
Aug 18, 2009
Richtek Technology Corp.
Ko-Cheng Wang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Current feed-through adaptive voltage position control for a voltag...
Patent number
7,560,917
Issue date
Jul 14, 2009
Richtek Technology Corp.
Hsin-Hsin Ho
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Single-chip common-drain JFET device and its applications
Patent number
7,535,032
Issue date
May 19, 2009
Richtek Technology Corp.
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Circuit and method for soft start from a residual voltage
Patent number
7,501,805
Issue date
Mar 10, 2009
Richtek Technology Corp.
Isaac Y. Chen
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Pulse modulation system with nonlinear ramp
Patent number
7,498,792
Issue date
Mar 3, 2009
Richtek Technology Coporation
Tsai-Fu Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Charge pump start up circuit and method thereof
Patent number
7,489,182
Issue date
Feb 10, 2009
Richtek Technology Corporation
Hung-Che Chou
G11 - INFORMATION STORAGE
Information
Patent Grant
Frequency-on-the-fly control circuit and method for a DC/DC PWM con...
Patent number
7,474,086
Issue date
Jan 6, 2009
Richtek Technology Corp.
Jiun-Chiang Chen
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching circuit using multiple common-drain JFETs for good heat d...
Patent number
7,446,591
Issue date
Nov 4, 2008
Richtek Technology Corp.
Liang-Pin Tai
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Overshoot suppression circuit for a voltage regulation module
Patent number
7,274,177
Issue date
Sep 25, 2007
Richtek Technology Corp.
Jian-Rong Huang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching circuit using multiple common-drain JFETs for good heat d...
Patent number
7,274,246
Issue date
Sep 25, 2007
Richtek Technology Corp.
Liang-Pin Tai
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
JFET driver circuit and JFET driving method
Patent number
7,233,191
Issue date
Jun 19, 2007
Richtek Technology Corp.
Hung-I Wang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Circuit and method for implementing a multi-function pin on a PWM c...
Patent number
7,233,131
Issue date
Jun 19, 2007
Richtek Technology Corp.
Pao-Chuan Lin
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High-efficiency two-step DC-to-DC converter
Patent number
7,233,133
Issue date
Jun 19, 2007
Richtek Technology Corp.
Liang-Pin Tai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
DC-to-DC converter with fast load transient response and method the...
Patent number
7,233,134
Issue date
Jun 19, 2007
Richtek Technology Corp.
Kent Huang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
FEEDBACK CIRCUIT AND CONTROL METHOD FOR AN ISOLATED POWER CONVERTER
Publication number
20130229833
Publication date
Sep 5, 2013
Richtek Technology Corp.
Liang-Pin TAI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
APPARATUS AND METHOD FOR OUTPUT VOLTAGE CALIBRATION OF A PRIMARY FE...
Publication number
20120008345
Publication date
Jan 12, 2012
RICHTEK TECHNOLOGY CORP.
CHIEN-FU TANG
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
DUTY FEED FORWARD METHOD AND APPARATUS FOR MODULATING A DUTY OF A P...
Publication number
20110068763
Publication date
Mar 24, 2011
RICHTEK TECHNOLOGY CORP.
Tsai-Fu Chang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
FEEDBACK CIRCUIT AND CONTROL METHOD FOR AN ISOLATED POWER CONVERTER
Publication number
20110018590
Publication date
Jan 27, 2011
RICHTEK TECHNOLOGY CORP.
LIANG-PIN TAI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Single-chip common-drain JFET device and its applications
Publication number
20090237062
Publication date
Sep 24, 2009
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Quick response width modulation for a voltage regulator
Publication number
20090230932
Publication date
Sep 17, 2009
Ting-Hung Wang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Single-chip common-drain JFET device and its applications
Publication number
20090206922
Publication date
Aug 20, 2009
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Single-chip common-drain JFET device and its applications
Publication number
20090206921
Publication date
Aug 20, 2009
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Single-chip common-drain JFET device and its applications
Publication number
20090201078
Publication date
Aug 13, 2009
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Single-chip common-drain JFET device and its applications
Publication number
20090201079
Publication date
Aug 13, 2009
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Quick turn on apparatus and method for a NMOSFET switch
Publication number
20090174461
Publication date
Jul 9, 2009
Ko-Cheng Wang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Voltage regulator and method for generating indicator signal in vol...
Publication number
20090102448
Publication date
Apr 23, 2009
Richtek Technology Corporation, R.O.C.
Chien-Hui Wang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Stability enhancement apparatus and method for a self-clocking PWM...
Publication number
20090039856
Publication date
Feb 12, 2009
Ko-Cheng Wang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Electrostatic loudspeaker driver
Publication number
20090041266
Publication date
Feb 12, 2009
Jwin-Yen Guo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Method and apparatus for improving the light load efficiency of a s...
Publication number
20080310194
Publication date
Dec 18, 2008
Pei-Lun Huang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Charge Pump Start up Circuit and Method Thereof
Publication number
20080284503
Publication date
Nov 20, 2008
Richtek Technology Corporation
Hung-Che Chou
G11 - INFORMATION STORAGE
Information
Patent Application
Method and circuit for reducing switching ringing in switching regu...
Publication number
20080211467
Publication date
Sep 4, 2008
Richtek Technology, Corporation
Jian-Rong Huang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
DUTY FEED FORWARD METHOD AND APPARATUS FOR MODULATING A DUTY OF A P...
Publication number
20080062731
Publication date
Mar 13, 2008
RICHTEK TECHNOLOGY CORP.
Tsai-Fu Chang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Control circuit and method for a constant on-time PWM switching con...
Publication number
20080030181
Publication date
Feb 7, 2008
Kuo Ping Liu
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Dual mosfet package
Publication number
20070267742
Publication date
Nov 22, 2007
Liang-Pin Tai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Switching circuit using multiple common-drain JFETs for good heat d...
Publication number
20070252636
Publication date
Nov 1, 2007
Liang-Pin Tai
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Frequency-on-the-fly control circuit and method for a DC/DC PWM con...
Publication number
20070241733
Publication date
Oct 18, 2007
Jiun-Chiang Chen
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Control circuit and method for a DC-to-DC converter to improve tran...
Publication number
20070176581
Publication date
Aug 2, 2007
Jiun-Chiang Chen
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Electronic circuits utilizing normally-on junction field-effect tra...
Publication number
20070146046
Publication date
Jun 28, 2007
Liang-Pin Tai
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Electronic circuits utilizing normally-on junction field-effect tra...
Publication number
20070147099
Publication date
Jun 28, 2007
Liang-Pin Tai
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Circuit and method for soft start from a residual voltage
Publication number
20070064454
Publication date
Mar 22, 2007
Isaac Y. Chen
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Quick turn on apparatus and method for a NMOSFET switch
Publication number
20070046358
Publication date
Mar 1, 2007
Ko-Cheng Wang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Pulse modulation system with nonlinear ramp
Publication number
20060273769
Publication date
Dec 7, 2006
Richtek Technology Corp.
Tsai-Fu Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
DIRECT CURRENT VOLTAGE BOOSTING/BUCKING DEVICE
Publication number
20060261790
Publication date
Nov 23, 2006
Liang-Pin Tai
G05 - CONTROLLING REGULATING
Information
Patent Application
Electronic circuits utilizing normally-on junction field-effect tra...
Publication number
20060055446
Publication date
Mar 16, 2006
Liang-Pin Tai
H03 - BASIC ELECTRONIC CIRCUITRY