Inventor

KERKMAN RUSSEL J

US72 patents

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

KERKMAN RUSSEL J

ROCKWELL AUTOMATION TECH INC

Method and apparatus to regulate loads

Modulation methods and apparatus for reducing common mode voltages

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

Stator and rotor resistance identifier using high frequency injection

Junction temperature prediction method and apparatus for use in a power conversion module

Angle control of modulating wave to reduce reflected wave overvoltage transients

Method and apparatus for compensating for device dynamics in inverter based control systems

Method and apparatus for compensating for device dynamics and voltage drop in inverter based control systems

Adjusting gate pulse time intervals for reflected wave mitigation

Method and apparatus for reducing sampling related errors in a modulating waveform generator used with a PWM controller

Static commissioning method and apparatus to identify rated flux current

Modulation methods and apparatus for reducing common mode noise

System and method for adjustable carrier waveform generator

Cancellation of dead time effects for reducing common mode voltages

Method and apparatus for controlling reflected voltage using a motor controller

Method and apparatus for compensating for device dynamics by adjusting inverter carrier frequency

Adaptive predictive synchronous current frame regulator method and apparatus

Junction temperature reduction for three phase inverters modules

Common mode noise reduction in converter systems through modification of single phase switching signal

System for power conversion with reactive power compensation

Digital implementation of a tracking filter

Double fed induction generator (DFIG) converter and method for improved grid fault ridethrough

ALLEN BRADLEY CO

Generalized discontinuous pulse width modulator

Method and apparatus for starting an AC drive into a rotating motor

Transient inductance tuner for motor control

Open loop motor control with both voltage and current regulation

Slip control based on sensing voltage fed to an induction motor

Method and apparatus for controlling reflected voltage using a motor controller

Frequency control based on sensing voltage fed to an induction motor

Method and apparatus for determining a critical dwell time for use in motor controls

Apparatus for controlling reflected voltage on motor supply lines

Apparatus for reducing the effects of turn on delay errors in motor control

Method and apparatus for controlling voltage reflections using a motor controller

Apparatus used with AC motors for compensating for turn on delay errors

AC motor controller with voltage margin adjustment

Compensated feedforward voltage for a PWM AC motor drive

Counter EMF detector for use in electric motor controllers

PWM control in the pulse dropping region

Frequency generator for a motor controller

Transient inductance identifier for motor control

Electrostatic shield for AC motor

Apparatus used with an inverter/converter eliminating unintended voltage pulses

Stator resistance detector for use in electric motor controllers

Cross coupled current regulator

TALLAM RANGARAJAN M

Parallel power inverter motor drive system

Discontinuous pulse width drive modulation method and apparatus for reduction of common-mode voltage in power conversion systems

LU HAIHUI

Wind power converter system with grid side reactive power control

(unassigned)

Method and apparatus for starting an electric motor

KERKMAN RUSSEL J

Phase-locked-loop with quadrature tracking filter for synchronizing an electric grid

VALDEZ CARLOS RODRIGUEZ

Modular line-to-ground fault identification