Fred C. Lee

Person

Blacksburg, VA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic integration of matrix transformer with controllable leakag...
- Patent number 12,009,146
- Issue date Jun 11, 2024
- Virginia Tech Intellectual Properties, Inc.
- Ahmed Nabih
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High current DC-DC converter with integrated matrix transformer and...
- Patent number 11,894,778
- Issue date Feb 6, 2024
- Virginia Tech Intellectual Properties, Inc.
- Xin Lou
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Integrated parallel matrix transformer and inductor
- Patent number 11,848,140
- Issue date Dec 19, 2023
- Virginia Tech Intellectual Properties, Inc.
- Mohamed Hassan Abouelella Ahmed
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Efficient wide voltage range quasi-parallel voltage regulator
- Patent number 11,545,900
- Issue date Jan 3, 2023
- Virginia Tech Intellectual Properties, Inc.
- Mohamed Ahmed
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Interleaved converters with integrated magnetics
- Patent number 11,404,967
- Issue date Aug 2, 2022
- Virginia Tech Intellectual Properties, Inc.
- Chao Fei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Matrix transformer and winding structure
- Patent number 10,910,140
- Issue date Feb 2, 2021
- Virginia Tech Intellectual Properties, Inc.
- Chao Fei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bidirectional three-phase direct current (DC)/DC converters
- Patent number 10,873,265
- Issue date Dec 22, 2020
- Virginia Tech Intellectual Properties, Inc.
- Hao Xue
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Interleaved converters with integrated magnetics
- Patent number 10,790,081
- Issue date Sep 29, 2020
- Virginia Tech Intellectual Properties, Inc.
- Chao Fei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Inverse charge current mode (IQCM) control for power converter
- Patent number 10,673,328
- Issue date Jun 2, 2020
- Virginia Tech Intellectual Properties, Inc.
- Syed Bari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switched capacitor converters with multi resonant frequencies
- Patent number 10,658,928
- Issue date May 19, 2020
- Virginia Tech Intellectual Properties, Inc.
- Owen Jong
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable DC link converter and transformer for wide output voltage...
- Patent number 10,454,381
- Issue date Oct 22, 2019
- Bin Li
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Modular multilevel converter capacitor voltage ripple reduction
- Patent number 10,404,064
- Issue date Sep 3, 2019
- Virginia Tech Intellectual Properties, Inc.
- Yadong Lyu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Coupled inductor for interleaved multi-phase three-level DC-DC conv...
- Patent number 10,396,684
- Issue date Aug 27, 2019
- Virginia Tech Intellectual Properties, Inc.
- Mingkai Mu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Omnidirectional wireless power transfer system
- Patent number 10,333,353
- Issue date Jun 25, 2019
- Virginia Tech Intellectual Properties, Inc.
- Junjie Feng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current mode control DC-DC converter with single step load transien...
- Patent number 10,312,805
- Issue date Jun 4, 2019
- Virginia Tech Intellectual Properties, Inc.
- Virginia Li
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Critical-mode-based soft-switching techniques for three-phase bi-di...
- Patent number 10,291,109
- Issue date May 14, 2019
- Virginia Tech Intellectual Properties, Inc.
- Zhengrong Huang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multiphase coupled and integrated inductors with printed circuit bo...
- Patent number 10,217,559
- Issue date Feb 26, 2019
- Virginia Tech Intellectual Properties, Inc.
- Yuchen Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Low profile coupled inductor substrate with transient speed improve...
- Patent number 10,109,404
- Issue date Oct 23, 2018
- Virginia Tech Intellectual Properties, Inc.
- Yipeng Su
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Transient performance improvement for constant on-time power conver...
- Patent number 10,110,122
- Issue date Oct 23, 2018
- Virginia Tech Intellectual Properties, Inc.
- Syed Bari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-step simplified optimal trajectory control (SOTC) based on on...
- Patent number 10,075,083
- Issue date Sep 11, 2018
- Virginia Tech Intellectual Properties, Inc.
- Chao Fei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Hybrid interleaving structure with adaptive phase locked loop for v...
- Patent number 10,013,007
- Issue date Jul 3, 2018
- Virginia Tech Intellectual Properties, Inc.
- Pei-Hsin Liu
- G05 - CONTROLLING REGULATING
Information Patent Grant
Universal system structure for low power adapters
- Patent number 9,847,710
- Issue date Dec 19, 2017
- Virginia Tech Intellectual Properties, Inc.
- Fred C. Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit and method for driving synchronous rectifiers for high-freq...
- Patent number 9,812,978
- Issue date Nov 7, 2017
- Virginia Tech Intellectual Properties, Inc.
- Xiucheng Huang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Avoiding internal switching loss in soft switching cascode structur...
- Patent number 9,735,238
- Issue date Aug 15, 2017
- Virginia Tech Intellectual Properties, Inc.
- Xiucheng Huang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Maximum power point tracking for solar panels
- Patent number 9,685,790
- Issue date Jun 20, 2017
- Virginia Tech Intellectual Properties, Inc.
- Xinke Wu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
External ramp autotuning for current mode control of switching conv...
- Patent number 9,678,521
- Issue date Jun 13, 2017
- Virginia Tech Intellectual Properties, Inc.
- Pei-Hsin Liu
- G05 - CONTROLLING REGULATING
Information Patent Grant
V^2 power converter control with capacitor current ramp compensation
- Patent number 9,601,997
- Issue date Mar 21, 2017
- Virginia Tech Intellectual Properties, Inc.
- Yingyi Yan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method for reducing or eliminating conducted common mode noise in a...
- Patent number 9,589,718
- Issue date Mar 7, 2017
- Virginia Tech Intellectual Properties, Inc.
- Yuchen Yang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High frequency integrated point-of-load power converter with embedd...
- Patent number 9,564,264
- Issue date Feb 7, 2017
- Virginia Tech Intellectual Properties, Inc.
- Yipeng Su
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Two-stage multichannel LED driver with CLL resonant circuit
- Patent number 9,544,956
- Issue date Jan 10, 2017
- Virginia Tech Intellectual Properties, Inc.
- Xuebing Chen
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
THREE-PHASE LLC CONVERTERS WITH INTEGRATED MAGNETICS
- Publication number 20230122794
- Publication date Apr 20, 2023
- Virginia Tech Intellectual Properties, Inc.
- Rimon Gadelrab
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH CURRENT DC-DC CONVERTER WITH INTEGRATED MATRIX TRANSFORMER AND...
- Publication number 20220385198
- Publication date Dec 1, 2022
- Virginia Tech Intellectual Properties, Inc.
- Xin Lou
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Planar Omnidirectional Wireless Power Transfer System
- Publication number 20220311277
- Publication date Sep 29, 2022
- Virginia Tech Intellectual Properties, Inc.
- Junjie Feng
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COUPLED INDUCTOR WINDING STRUCTURE FOR COMMON-MODE NOISE REDUCTION
- Publication number 20220310303
- Publication date Sep 29, 2022
- Virginia Tech Intellectual Properties, Inc.
- Shuo Wang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MULTI-PHASE INTEGRATED COUPLED INDUCTOR STRUCTURE
- Publication number 20220293326
- Publication date Sep 15, 2022
- Feiyang Zhu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Integrated Parallel Matrix Transformer And Inductor
- Publication number 20200395164
- Publication date Dec 17, 2020
- Virginia Tech Intellectual Properties, Inc.
- Mohamed Hassan Abouelella Ahmed
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MAGNETIC INTEGRATION OF MATRIX TRANSFORMER WITH CONTROLLABLE LEAKAG...
- Publication number 20200350117
- Publication date Nov 5, 2020
- Virginia Tech Intellectual Properties, Inc.
- Ahmed Nabih
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EFFICIENT WIDE VOLTAGE RANGE QUASI-PARALLEL VOLTAGE REGULATOR
- Publication number 20200350827
- Publication date Nov 5, 2020
- Mohamed AHMED
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BIDIRECTIONAL THREE-PHASE DIRECT CURRENT (DC)/DC CONVERTERS
- Publication number 20190379291
- Publication date Dec 12, 2019
- Virginia Tech Intellectual Properties, Inc.
- Hao Xue
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INTERLEAVED CONVERTERS WITH INTEGRATED MAGNETICS
- Publication number 20190379292
- Publication date Dec 12, 2019
- Virginia Tech Intellectual Properties, Inc.
- Chao Fei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
INTERLEAVED CONVERTERS WITH INTEGRATED MAGNETICS
- Publication number 20190355506
- Publication date Nov 21, 2019
- Virginia Tech Intellectual Properties, Inc.
- Chao Fei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SWITCHED CAPACITOR CONVERTERS WITH MULTI RESONANT FREQUENCIES
- Publication number 20190334434
- Publication date Oct 31, 2019
- Virginia Tech Intellectual Properties, Inc.
- Owen Jong
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Matrix Transformer and Winding Structure
- Publication number 20180226182
- Publication date Aug 9, 2018
- Virginia Tech Intellectual Properties, Inc.
- Chao Fe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CRITICAL-MODE-BASED SOFT-SWITCHING TECHNIQUES FOR THREE-PHASE BI-DI...
- Publication number 20180205306
- Publication date Jul 19, 2018
- Virginia Tech Intellectual Properties, Inc.
- Zhengrong Huang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
VARIABLE DC LINK CONVERTER AND TRANSFORMER FOR WIDE OUTPUT VOLTAGE...
- Publication number 20180076723
- Publication date Mar 15, 2018
- Virginia Tech Intellectual Properties, Inc.
- Bin Li
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Multiphase Coupled and Integrated Inductors with Printed Circuit Bo...
- Publication number 20170294833
- Publication date Oct 12, 2017
- Virginia Tech Intellectual Properties, Inc.
- Yuchen Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
OMNIDIRECTIONAL WIRELESS POWER TRANSFER SYSTEM
- Publication number 20170222483
- Publication date Aug 3, 2017
- Virginia Tech Intellectual Properties, Inc.
- Junjie Feng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MODULAR MULTILEVEL CONVERTER CAPACITOR VOLTAGE RIPPLE REDUCTION
- Publication number 20170054294
- Publication date Feb 23, 2017
- Virginia Tech Intellectual Properties, Inc.
- Yadong Lyu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Inverse Charge Current Mode (IQCM) Control for Power Converter
- Publication number 20160301303
- Publication date Oct 13, 2016
- Virginia Tech Intellectual Properties, Inc.
- Syed Bari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Circuit and Method for Driving Synchronous Rectifiers for High-Freq...
- Publication number 20160294292
- Publication date Oct 6, 2016
- Virginia Tech Intellectual Properties, Inc.
- Xiucheng Huang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Multi-Step Simplified Optimal Trajectory Control (SOTC) Based on On...
- Publication number 20160294297
- Publication date Oct 6, 2016
- Chao Fei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Current Mode Control DC-DC Converter with Single Step Load Transien...
- Publication number 20160294278
- Publication date Oct 6, 2016
- Virginia Tech Intellectual Properties, Inc.
- Virginia Li
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Universal System Structure for Low Power Adapters
- Publication number 20160294296
- Publication date Oct 6, 2016
- Virginia Tech Intellectual Properties, Inc.
- Fred C. Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Coupled Inductor for Interleaved Multi-Phase Three-Level DC-DC Conv...
- Publication number 20160172976
- Publication date Jun 16, 2016
- Virginia Tech Intellectual Properties, Inc.
- Mingkai Mu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Low Profile Coupled Inductor Substrate with Transient Speed Improve...
- Publication number 20160086723
- Publication date Mar 24, 2016
- Virginia Tech Intellectual Properties, Inc.
- Yipeng Su
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Two-Stage Multichannel LED Driver with CLL Resonant Circuit
- Publication number 20150289331
- Publication date Oct 8, 2015
- Virginia Tech Intellectual Properties, Inc.
- Xuebing Chen
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Transient Performance Improvement for Constant On-Time Power Conver...
- Publication number 20150280556
- Publication date Oct 1, 2015
- Virginia Tech Intellectual Properties, Inc.
- Syed Bari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Hybrid Interleaving Structure with Adaptive Phase Locked Loop for V...
- Publication number 20150277460
- Publication date Oct 1, 2015
- Virginia Tech Intellectual Properties, Inc.
- Pei-Hsin Liu
- G05 - CONTROLLING REGULATING
Information Patent Application
Avoiding Internal Switching Loss in Soft Switching Cascode Structur...
- Publication number 20150200583
- Publication date Jul 16, 2015
- Virginia Tech Intellectual Properties, Inc.
- Xiucheng Huang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
High Frequency Integrated Point-of-Load Power Converter with Embedd...
- Publication number 20150062989
- Publication date Mar 5, 2015
- Virginia Tech Intellectual Properties, Inc.
- Yipeng Su
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Fred C. Lee

Person

Patents Grantslast 30 patents

Magnetic integration of matrix transformer with controllable leakag...

High current DC-DC converter with integrated matrix transformer and...

Integrated parallel matrix transformer and inductor

Efficient wide voltage range quasi-parallel voltage regulator

Interleaved converters with integrated magnetics

Matrix transformer and winding structure

Bidirectional three-phase direct current (DC)/DC converters

Interleaved converters with integrated magnetics

Inverse charge current mode (IQCM) control for power converter

Switched capacitor converters with multi resonant frequencies

Variable DC link converter and transformer for wide output voltage...

Modular multilevel converter capacitor voltage ripple reduction

Coupled inductor for interleaved multi-phase three-level DC-DC conv...

Omnidirectional wireless power transfer system

Current mode control DC-DC converter with single step load transien...

Critical-mode-based soft-switching techniques for three-phase bi-di...

Multiphase coupled and integrated inductors with printed circuit bo...

Low profile coupled inductor substrate with transient speed improve...

Transient performance improvement for constant on-time power conver...

Multi-step simplified optimal trajectory control (SOTC) based on on...

Hybrid interleaving structure with adaptive phase locked loop for v...

Universal system structure for low power adapters

Circuit and method for driving synchronous rectifiers for high-freq...

Avoiding internal switching loss in soft switching cascode structur...

Maximum power point tracking for solar panels

External ramp autotuning for current mode control of switching conv...

V^2 power converter control with capacitor current ramp compensation

Method for reducing or eliminating conducted common mode noise in a...

High frequency integrated point-of-load power converter with embedd...

Two-stage multichannel LED driver with CLL resonant circuit

Patents Applicationslast 30 patents

THREE-PHASE LLC CONVERTERS WITH INTEGRATED MAGNETICS

HIGH CURRENT DC-DC CONVERTER WITH INTEGRATED MATRIX TRANSFORMER AND...

Planar Omnidirectional Wireless Power Transfer System

COUPLED INDUCTOR WINDING STRUCTURE FOR COMMON-MODE NOISE REDUCTION

MULTI-PHASE INTEGRATED COUPLED INDUCTOR STRUCTURE

Integrated Parallel Matrix Transformer And Inductor

MAGNETIC INTEGRATION OF MATRIX TRANSFORMER WITH CONTROLLABLE LEAKAG...

EFFICIENT WIDE VOLTAGE RANGE QUASI-PARALLEL VOLTAGE REGULATOR

BIDIRECTIONAL THREE-PHASE DIRECT CURRENT (DC)/DC CONVERTERS

INTERLEAVED CONVERTERS WITH INTEGRATED MAGNETICS

INTERLEAVED CONVERTERS WITH INTEGRATED MAGNETICS

SWITCHED CAPACITOR CONVERTERS WITH MULTI RESONANT FREQUENCIES

Matrix Transformer and Winding Structure

CRITICAL-MODE-BASED SOFT-SWITCHING TECHNIQUES FOR THREE-PHASE BI-DI...

VARIABLE DC LINK CONVERTER AND TRANSFORMER FOR WIDE OUTPUT VOLTAGE...

Multiphase Coupled and Integrated Inductors with Printed Circuit Bo...

OMNIDIRECTIONAL WIRELESS POWER TRANSFER SYSTEM

MODULAR MULTILEVEL CONVERTER CAPACITOR VOLTAGE RIPPLE REDUCTION

Inverse Charge Current Mode (IQCM) Control for Power Converter

Circuit and Method for Driving Synchronous Rectifiers for High-Freq...

Multi-Step Simplified Optimal Trajectory Control (SOTC) Based on On...

Current Mode Control DC-DC Converter with Single Step Load Transien...

Universal System Structure for Low Power Adapters

Coupled Inductor for Interleaved Multi-Phase Three-Level DC-DC Conv...

Low Profile Coupled Inductor Substrate with Transient Speed Improve...

Two-Stage Multichannel LED Driver with CLL Resonant Circuit

Transient Performance Improvement for Constant On-Time Power Conver...

Hybrid Interleaving Structure with Adaptive Phase Locked Loop for V...

Avoiding Internal Switching Loss in Soft Switching Cascode Structur...

High Frequency Integrated Point-of-Load Power Converter with Embedd...