Li; Chuh-Ching

Patent Applications and Registrations

Patent applications and USPTO patent grants for Li; Chuh-Ching.The latest application filed is for "switching controller circuit and method for controlling flyback power converter".

Company Profile

7.32.28

Li; Chuh-Ching - Hsinchu TW
Li; Chuh-Ching - Taoyuan County TW
Li; Chuh-Ching - Zhubei TW
Li; Chuh-Ching - Zhubei City TW
Li; Chuh-Ching - Jhongli TW
LI; Chuh-Ching - US
Li; Chuh-Ching - Jhongli City TW

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Flyback power converter and secondary side controller circuit and control method thereof Grant 11,139,744 - Chang , et al. October 5, 2	2021-10-05
Switching controller circuit and method for controlling flyback power converter Grant 11,139,742 - Chang , et al. October 5, 2	2021-10-05
LED drive circuit with a programmable input for LED lighting Grant 11,026,309 - Yang , et al. June 1, 2	2021-06-01
Flyback power converter circuit and control circuit and control method thereof Grant 11,018,597 - Yang , et al. May 25, 2	2021-05-25
Switching Controller Circuit And Method For Controlling Flyback Power Converter App 20210126543 - Chang; Wei-Hsu ; et al.	2021-04-29
Flyback Powr Converter And Secondary Side Controller Circuit And Control Method Thereof App 20210111634 - Chang; Wei-Hsu ; et al.	2021-04-15
Flyback Power Converter Circuit And Control Circuit And Control Method Thereof App 20200358367 - Yang; Ta-Yung ; et al.	2020-11-12
Led Drive Circuit With A Programmable Input For Led Lighting App 20200107414 - YANG; Ta-Yung ; et al.	2020-04-02
LED drive circuit with a programmable input for LED lighting Grant 10,531,528 - Yang , et al. J	2020-01-07
Led Drive Circuit With A Programmable Input For Led Lighting App 20190350057 - YANG; Ta-Yung ; et al.	2019-11-14
LED drive circuit with a programmable input for LED lighting Grant 10,412,796 - Yang , et al. Sept	2019-09-10
Led Drive Circuit With A Programmable Input For Led Lighting App 20150264761 - YANG; TA-YUNG ; et al.	2015-09-17
LED drive circuit with a programmable input for LED lighting Grant 9,049,764 - Yang , et al. June 2, 2	2015-06-02
High-speed reflected signal detection for primary-side controlled power converters Grant 8,854,841 - Yang , et al. October 7, 2	2014-10-07
Led Drive Circuit With A Programmable Input For Led Lighting App 20140232284 - YANG; Ta-Yung ; et al.	2014-08-21
LED drive circuit with a programmable input for LED lighting Grant 8,742,677 - Yang , et al. June 3, 2	2014-06-03
Control circuit with burst mode and extended valley switching for quasi-resonant power converter Grant 8,587,964 - Yang , et al. November 19, 2	2013-11-19
Output voltage control circuit of power converter for light-load power saving Grant 8,559,196 - Yang , et al. October 15, 2	2013-10-15
Method and apparatus for a LED driver with high power factor Grant 8,432,109 - Yang , et al. April 30, 2	2013-04-30
Method And Apparatus For A Led Driver With High Power Factor App 20120081039 - YANG; TA-YUNG ; et al.	2012-04-05
Control Circuit With Burst Mode And Extended Valley Switching For Quasi-resonant Power Converter App 20120069608 - YANG; Ta-Yung ; et al.	2012-03-22
Control circuit having off-time modulation to operate power converter at quasi-resonance and in continuous current mode Grant 8,094,468 - Yang , et al. January 10, 2	2012-01-10
High-Speed Reflected Signal Detection for Primary-Side Controlled Power Converters App 20110255309 - Yang; Ta-Yung ; et al.	2011-10-20
Method and Apparatus for Detecting CCM Operation of a Magnetic Device App 20110254537 - YANG; TA-YUNG ; et al.	2011-10-20
Led Drive Circuit With A Programmable Input For Led Lighting App 20110169418 - YANG; TA-YUNG ; et al.	2011-07-14
Method and apparatus for measuring the switching current of power converter operated at continuous current mode Grant 7,965,528 - Yang , et al. June 21, 2	2011-06-21
Output Voltage Control Circuit Of Power Converter For Light-load Power Saving App 20100232187 - YANG; Ta-Yung ; et al.	2010-09-16
Control Circuit Having Off-time Modulation To Operate Power Converter At Quasi-resonance And In Continuous Current Mode App 20100097104 - Yang; Ta-Yung ; et al.	2010-04-22
Detection circuit to detect input voltage of transformer and detecting method for the same Grant 7,701,734 - Li , et al. April 20, 2	2010-04-20
Detection circuit for sensing the input voltage of transformer Grant 7,671,578 - Li , et al. March 2, 2	2010-03-02
Control circuit for measuring and regulating output current of CCM power converter Grant 7,663,352 - Yang , et al. February 16, 2	2010-02-16
Method And Apparatus For Measuring The Switching Current Of Power Converter Operated At Continuous Current Mode App 20090310388 - YANG; Ta-Yung ; et al.	2009-12-17
Primary-side controlled switching regulator Grant 7,561,447 - Yang , et al. July 14, 2	2009-07-14
Method and apparatus for detecting switching current of magnetic device operated in continuous current mode Grant 7,518,416 - Yang , et al. April 14, 2	2009-04-14
Control Circuit For Measuring And Regulating Output Current Of Ccm Power Converter App 20090058389 - Yang; Ta-yung ; et al.	2009-03-05
Control circuit of power converter having adaptive bias for detecting reflected voltage of transformer Grant 7,492,613 - Yang , et al. February 17, 2	2009-02-17
Transistor drive circuit of power converter operating in a wide voltage range Grant 7,471,121 - Yang , et al. December 30, 2	2008-12-30
Method And Apparatus For Detecting Switching Current Of Magnetic Device Operated In Continuous Current Mode App 20080309380 - Yang; Ta-yung ; et al.	2008-12-18
Power converter having phase lock circuit for quasi-resonant soft switching Grant 7,466,569 - Yang , et al. December 16, 2	2008-12-16
Switching control circuit having a valley voltage detector to achieve soft switching for a resonant power converter Grant 7,426,120 - Yang , et al. September 16, 2	2008-09-16
High-side transistor driver having positive feedback for improving speed and power saving Grant 7,405,595 - Yang , et al. July 29, 2	2008-07-29
Transistor Driver Circuit of Power Converter App 20080150503 - Yang; Ta-Yung ; et al.	2008-06-26
Primary-side Controlled Switching Regulator App 20080136393 - Yang; Ta-yung ; et al.	2008-06-12
Switching control circuit having off-time modulation to improve efficiency of primary-side controlled power supply Grant 7,362,593 - Yang , et al. April 22, 2	2008-04-22
Switching control circuit for primary-side controlled power converters Grant 7,362,592 - Yang , et al. April 22, 2	2008-04-22
Primary-side controlled switching regulator Grant 7,352,595 - Yang , et al. April 1, 2	2008-04-01
Detection Circuit To Detect Input Voltage Of Transformer And Detecting Method For The Same App 20080048633 - Li; Chuh-Ching ; et al.	2008-02-28
Detection Circuit For Sensing The Input Voltage Of Transformer App 20080012547 - Li; Chuh-Ching ; et al.	2008-01-17
Control circuit of power converter having adaptive bias for detecting reflected voltage of transformer App 20070133231 - Yang; Ta-yung ; et al.	2007-06-14
Switching control circuit having a valley voltage detector to achieve soft switching for a resonant power converter App 20070121352 - Yang; Ta-Yung ; et al.	2007-05-31
High-side transistor driver having positive feedback for improving speed and power saving App 20070109020 - Yang; Ta-yung ; et al.	2007-05-17
Power converter having phase lock circuit for quasi-resonant soft switching App 20070109820 - Yang; Ta-Yung ; et al.	2007-05-17
Primary-side controlled switching regulator App 20070103134 - Yang; Ta-yung ; et al.	2007-05-10
Switching control circuit having off-time modulation to improve efficiency of primary-side controlled power supply App 20060055433 - Yang; Ta-yung ; et al.	2006-03-16
Switching control circuit for primary-side controlled power converters App 20060056204 - Yang; Ta-yung ; et al.	2006-03-16

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