Inventor
HE ZHAOHUI
US30 patents
⚠️ This page may combine multiple inventors who share the name “HE ZHAOHUI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIRRUS LOGIC INT SEMICONDUCTOR LTD
13 patentsUS10862442B2Dec 8, 2020
Low power dissipation high performance Class-D amplifier
CIRRUS LOGIC INT SEMICONDUCTOR LTD4 citations83
US10476455B1Nov 12, 2019
Apparatus and method of suppressing transient noise during transition for class-D amplifier system having one or more pulse width modulator output paths
CIRRUS LOGIC INT SEMICONDUCTOR LTD7 citations83
US11290069B2Mar 29, 2022
Distortion reducing variable output impedance class-D amplifier
CIRRUS LOGIC INT SEMICONDUCTOR LTD3 citations72
US10972061B2Apr 6, 2021
Class-D amplifier with multiple independent output stages
CIRRUS LOGIC INT SEMICONDUCTOR LTD2 citations72
US12531526B2Jan 20, 2026
Non-linear function in an early-sampled hybrid multi-level converter amplifier system
CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations62
US11245370B2Feb 8, 2022
Class-D amplifier with multiple power rails and quantizer that switches used ramp amplitude concurrently with switch in used power rail
CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations62
US9985587B2May 29, 2018
Switched mode converter with variable common mode voltage buffer
CIRRUS LOGIC INT SEMICONDUCTOR LTD1 citations52
US9973156B2May 15, 2018
Generation of voltage reference signals in a hybrid switched mode amplifier
CIRRUS LOGIC INT SEMICONDUCTOR LTD1 citations52
US9929664B2Mar 27, 2018
Prevention of switching discontinuity in a hybrid switched mode amplifier
CIRRUS LOGIC INT SEMICONDUCTOR LTD1 citations52
US12323055B2Jun 3, 2025
Driver circuitry and operation
CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations51
US12556149B2Feb 17, 2026
Calibration of fully-differential input system
CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations49
US10090814B2Oct 2, 2018
Removal of switching discontinuity in a hybrid switched mode amplifier
CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations42
US9906196B2Feb 27, 2018
Hybrid switched mode amplifier
CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations42
CIRRUS LOGIC INC
5 patentsUS9178444B2Nov 3, 2015
Multi-mode flyback control for a switching power converter
CIRRUS LOGIC INC12 citations84
US9024541B2May 5, 2015
Utilizing secondary-side conduction time parameters of a switching power converter to provide energy to a load
CIRRUS LOGIC INC7 citations82
US9071144B2Jun 30, 2015
Adaptive current control timing and responsive current control for interfacing with a dimmer
CIRRUS LOGIC INC1 citations62
US9184666B2Nov 10, 2015
Active thermal protection for switches
CIRRUS LOGIC INC3 citations59
US9166485B2Oct 20, 2015
Quantization error reduction in constant output current control drivers
CIRRUS LOGIC INC0 citations52
KONINKLIJKE PHILIPS NV
4 patentsUS9520794B2Dec 13, 2016
Acceleration of output energy provision for a load during start-up of a switching power converter
KONINKLIJKE PHILIPS NV4 citations73
US9502984B2Nov 22, 2016
Switching parameter based discontinuous mode-critical conduction mode transition
KONINKLIJKE PHILIPS NV0 citations52
US9515485B1Dec 6, 2016
Power control system with power drop out immunity and uncompromised startup time
KONINKLIJKE PHILIPS NV0 citations51
US9577538B2Feb 21, 2017
Utilizing secondary-side conduction time parameters of a switching power converter to provide energy to a load
KONINKLIJKE PHILIPS NV0 citations50