Inventor

HARBAUGH MARK M

US11 patents

⚠️ This page may combine multiple inventors who share the name “HARBAUGH MARK M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ROCKWELL AUTOMATION TECH INC

6 patents

US6703809B2Mar 9, 2004

Flux position identifier using high frequency injection with the presence of a rich harmonic spectrum in a responding signal

ROCKWELL AUTOMATION TECH INC76 citations97

US6636012B2Oct 21, 2003

Stator and rotor resistance identifier using high frequency injection

ROCKWELL AUTOMATION TECH INC101 citations97

US8009450B2Aug 30, 2011

Method and apparatus for phase current balance in active converter with unbalanced AC line voltage source

ROCKWELL AUTOMATION TECH INC40 citations92

US6831440B1Dec 14, 2004

Flux position identifier using high frequency injection

ROCKWELL AUTOMATION TECH INC28 citations92

US7479756B2Jan 20, 2009

System and method for protecting a motor drive unit from motor back EMF under fault conditions

ROCKWELL AUTOMATION TECH INC46 citations90

US7915852B2Mar 29, 2011

Universal adaptive torque control for PM motors for field-weakening region operation

ROCKWELL AUTOMATION TECH INC1 citations51

LIU JINGBO

2 patents

US8228013B2Jul 24, 2012

Method and apparatus for automatically identifying electrical parameters in a sensor-less PMSM

LIU JINGBO28 citations92

US8497655B2Jul 30, 2013

Method and apparatus for estimating rotor position in a sensorless synchronous motor

LIU JINGBO11 citations83

ROYAK SEMYON

2 patents

US8330405B2Dec 11, 2012

Method and apparatus for increased current stability in a PWM drive

ROYAK SEMYON4 citations61

US8115437B2Feb 14, 2012

Torque limit of PM motors for field-weakening region operation

ROYAK SEMYON5 citations61

ARCO HEATING & AIR CONDITIONIN

1 patent

US5428557AJun 27, 1995

Sheet material coil counter

ARCO HEATING & AIR CONDITIONIN16 citations69