Inventor
LIU KUO-CHI
TW61 patents
⚠️ This page may combine multiple inventors who share the name “LIU KUO-CHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICHTEK TECHNOLOGY CORP
41 patentsUS9853486B2Dec 26, 2017
Resonant wireless power receiver circuit and control method thereof
RICHTEK TECHNOLOGY CORP24 citations94
US12136876B2Nov 5, 2024
Switched capacitor voltage converter circuit
RICHTEK TECHNOLOGY CORP6 citations75
US11736007B2Aug 22, 2023
Resonant switching power converter having charging/discharging duration period related to charging/discharging resonant frequency
RICHTEK TECHNOLOGY CORP4 citations75
US11671002B2Jun 6, 2023
Resonant switching power converter
RICHTEK TECHNOLOGY CORP5 citations75
US11646654B2May 9, 2023
Resonant switching power converter capable of performing discharging operation in a sequential order
RICHTEK TECHNOLOGY CORP6 citations75
US11552547B2Jan 10, 2023
Resonant switching power converter
RICHTEK TECHNOLOGY CORP4 citations75
US12136877B2Nov 5, 2024
Switched capacitor voltage converter circuit and switched capacitor voltage conversion method
RICHTEK TECHNOLOGY CORP2 citations73
US11955884B2Apr 9, 2024
Resonant switching power converter circuit
RICHTEK TECHNOLOGY CORP2 citations73
US11742751B2Aug 29, 2023
Resonant switching power converter
RICHTEK TECHNOLOGY CORP2 citations73
US11716020B2Aug 1, 2023
SCC-based DC-DC power conversion system capable of receiving switching control adjustable by output voltage thereof, and power conversion method thereof
RICHTEK TECHNOLOGY CORP2 citations73
US11682966B2Jun 20, 2023
Pipeline resonant and non-resonant switched capacitor converter circuit
RICHTEK TECHNOLOGY CORP3 citations73
US11601048B2Mar 7, 2023
Resonant switching power converter
RICHTEK TECHNOLOGY CORP3 citations73
US11418112B2Aug 16, 2022
Power converter
RICHTEK TECHNOLOGY CORP2 citations73
US11411493B2Aug 9, 2022
Two-stage power converter
RICHTEK TECHNOLOGY CORP2 citations73
US9853505B2Dec 26, 2017
Resonant wireless power receiver circuit and control circuit and wireless power conversion method thereof
RICHTEK TECHNOLOGY CORP2 citations73
US9059585B2Jun 16, 2015
Self-discharge control for an EMI filter capacitor
RICHTEK TECHNOLOGY CORP5 citations71
US12176811B2Dec 24, 2024
Switched capacitor voltage converter circuit and switched capacitor converter control method
RICHTEK TECHNOLOGY CORP1 citations63
US12136875B2Nov 5, 2024
Switched capacitor voltage converter circuit and switched capacitor voltage conversion method
RICHTEK TECHNOLOGY CORP2 citations63
US11283298B2Mar 22, 2022
Resonant wireless power transmitter circuit and control circuit and control method thereof
RICHTEK TECHNOLOGY CORP1 citations62
US12431802B2Sep 30, 2025
Multilevel buck converter with valley current mode control and dual slope compensation
RICHTEK TECHNOLOGY CORP0 citations61
US8350539B2Jan 8, 2013
Frequency modulation control of a buck-boost power converter
RICHTEK TECHNOLOGY CORP2 citations61
US8368375B2Feb 5, 2013
Switching regulator with transient control function and control circuit and method therefor
RICHTEK TECHNOLOGY CORP2 citations57
US12567803B2Mar 3, 2026
Conversion control circuit for controlling a resonant power converter and control method thereof
RICHTEK TECHNOLOGY CORP0 citations52
US12519394B2Jan 6, 2026
Multi-level switching converter circuit and multi-level switching conversion method
RICHTEK TECHNOLOGY CORP0 citations52
US12456913B2Oct 28, 2025
Resonant switched capacitor voltage converter and control method thereof
RICHTEK TECHNOLOGY CORP0 citations52
US12407248B2Sep 2, 2025
Feedforward frequency response for resonant charge pump
RICHTEK TECHNOLOGY CORP0 citations52
US12362665B2Jul 15, 2025
Power converter for reducing switching loss and enhancing system efficiency and control method thereof
RICHTEK TECHNOLOGY CORP0 citations52
US12273035B2Apr 8, 2025
Control circuit and method for use in stackable multiphase power converter
RICHTEK TECHNOLOGY CORP0 citations52
US12199507B2Jan 14, 2025
Multi-phase switching converter and control method thereof
RICHTEK TECHNOLOGY CORP0 citations52
US12199506B2Jan 14, 2025
Switched capacitor voltage converter circuit and control method of switched capacitor converter
RICHTEK TECHNOLOGY CORP0 citations52
US12199516B2Jan 14, 2025
Multi-phase switching converter and control method thereof
RICHTEK TECHNOLOGY CORP0 citations52
US12184168B2Dec 31, 2024
Switched capacitor voltage converter circuit and switched capacitor voltage conversion method
RICHTEK TECHNOLOGY CORP0 citations52
US11742760B2Aug 29, 2023
Resonant switching power converter and driving circuit thereof
RICHTEK TECHNOLOGY CORP0 citations52
US10680463B2Jun 9, 2020
Resonant wireless power transmitter circuit and control circuit and control method thereof
RICHTEK TECHNOLOGY CORP0 citations52
US9958886B2May 1, 2018
Tunable DC voltage generating circuit
RICHTEK TECHNOLOGY CORP0 citations52
US9853506B2Dec 26, 2017
Resonant wireless power receiver circuit and control circuit and wireless power conversion method thereof
RICHTEK TECHNOLOGY CORP1 citations52
US9825525B2Nov 21, 2017
Tunable DC voltage generating circuit
RICHTEK TECHNOLOGY CORP0 citations52
US9823675B2Nov 21, 2017
Tunable DC voltage generating circuit
RICHTEK TECHNOLOGY CORP0 citations52
US11382177B2Jul 5, 2022
Heating apparatus and temperature control circuit and temperature control method thereof
RICHTEK TECHNOLOGY CORP0 citations51
US11340645B2May 24, 2022
Power conversion apparatus for tracking maximum power point and control method thereof
RICHTEK TECHNOLOGY CORP0 citations51
US11139670B2Oct 5, 2021
Charger circuit with temperature compensation function and controller circuit thereof
RICHTEK TECHNOLOGY CORP0 citations51
CHEN WEN-WEI
2 patentsHON HAI PREC IND CO LTD
2 patentsHUANG PEI-CHENG
2 patentsLEE YEN-TE
1 patentLIU KUO-CHI
1 patentTSENG SHENG-YU
1 patentShowing the top 50 of 61 patents by PatentIndex Score.