Inventor
DEFENBAUGH JOHN F
US18 patents
⚠️ This page may combine multiple inventors who share the name “DEFENBAUGH JOHN F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HAMILTON SUNDSTRAND CORP
12 patentsUS6967461B1Nov 22, 2005
North-south pole determination for carrier injection sensorless position sensing systems
HAMILTON SUNDSTRAND CORP64 citations94
US7746038B2Jun 29, 2010
System and method for suppressing DC link voltage buildup due to generator armature reaction
HAMILTON SUNDSTRAND CORP9 citations83
US10469011B2Nov 5, 2019
Shorted rotating diode protection for synchronous machines
HAMILTON SUNDSTRAND CORP4 citations69
US11671038B2Jun 6, 2023
Control of a wound field synchronous generator for transient load response
HAMILTON SUNDSTRAND CORP0 citations62
US11641101B2May 2, 2023
Arc fault induced differential protection isolation
HAMILTON SUNDSTRAND CORP0 citations59
US11482955B2Oct 25, 2022
Shorted rotating diode protection for synchronous machines
HAMILTON SUNDSTRAND CORP0 citations59
US11300600B2Apr 12, 2022
Arc zone fault detection
HAMILTON SUNDSTRAND CORP0 citations59
US10326394B2Jun 18, 2019
Wound field generator overvoltage prevention
HAMILTON SUNDSTRAND CORP1 citations59
US11885850B2Jan 30, 2024
Generator failure detection method
HAMILTON SUNDSTRAND CORP0 citations57
US11905029B2Feb 20, 2024
Passive power sharing of paralleled sources
HAMILTON SUNDSTRAND CORP0 citations51
US12519400B2Jan 6, 2026
Two-switch exciter drive architecture with single switch modes
HAMILTON SUNDSTRAND CORP0 citations50
US12322961B2Jun 3, 2025
Parallel channel voltage feedback
HAMILTON SUNDSTRAND CORP0 citations50
SUNDSTRAND CORP
4 patentsUS5109676AMay 5, 1992
Vapor cycle system evaporator control
SUNDSTRAND CORP70 citations93
US5007245AApr 16, 1991
Vapor cycle system with multiple evaporator load control and superheat control
SUNDSTRAND CORP33 citations92
US5174729ADec 29, 1992
Control system for controlling surge as a function of pressure oscillations and method
SUNDSTRAND CORP22 citations90
US5554923ASep 10, 1996
Voltage regulator and method for DC power generating system
SUNDSTRAND CORP18 citations72