Inventor
CHAI HUAZHEN
US20 patents
⚠️ This page may combine multiple inventors who share the name “CHAI HUAZHEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HAMILTON SUNDSTRAND CORP
15 patentsUS10523130B2Dec 31, 2019
Alternate grounding of inverter midpoint for three level switching control
HAMILTON SUNDSTRAND CORP21 citations91
US9435263B2Sep 6, 2016
Thermal stress reduction in aircraft motor controllers
HAMILTON SUNDSTRAND CORP5 citations83
US11456680B2Sep 27, 2022
Over-modulation pulse width modulation with maximum output and minimum harmonics
HAMILTON SUNDSTRAND CORP2 citations72
US9912279B2Mar 6, 2018
Circuit with current sharing alternately switched parallel transistors
HAMILTON SUNDSTRAND CORP3 citations72
US9435264B2Sep 6, 2016
Thermal stress reduction in aircraft motor controllers
HAMILTON SUNDSTRAND CORP3 citations72
US11879931B2Jan 23, 2024
Circuit testing and diagnosis
HAMILTON SUNDSTRAND CORP0 citations62
US10998706B2May 4, 2021
Laminated bus bars
HAMILTON SUNDSTRAND CORP0 citations62
US10443388B2Oct 15, 2019
Heat pipe system for engine rotor cooling
HAMILTON SUNDSTRAND CORP1 citations62
US11042175B2Jun 22, 2021
Variable frequency voltage regulated AC-DC converters
HAMILTON SUNDSTRAND CORP0 citations61
US10746803B2Aug 18, 2020
Fault detection and isolation in generator modules
HAMILTON SUNDSTRAND CORP1 citations61
US11163013B2Nov 2, 2021
Electrical device partial discharge monitoring
HAMILTON SUNDSTRAND CORP0 citations52
US10320358B2Jun 11, 2019
Magnetically coupled contactless damper
HAMILTON SUNDSTRAND CORP0 citations51
US10164598B2Dec 25, 2018
Power filter arrangement having a toroidal inductor package
HAMILTON SUNDSTRAND CORP0 citations51
US10126350B2Nov 13, 2018
Detection of damper resistor degradation and failures
HAMILTON SUNDSTRAND CORP0 citations51
US10044305B2Aug 7, 2018
Controlling aircraft VFG over voltage under fault or load-shed
HAMILTON SUNDSTRAND CORP0 citations41