1
Joseph G Marcinkiewicz, Prakash B Shahi, Michael I Henderson: Sensorless control systems and methods for permanent magnet rotating machines. Emerson Electric Co, Harness Dickey & Pierce, March 11, 2008: US07342379 (47 worldwide citation)

Systems and methods for controlling a rotating electromagnetic machine. The rotating machine, such as a permanent magnet motor or hybrid switched reluctance motor, includes a stator having a plurality of phase windings and a rotor that rotates relative to the stator. A drive is connected to the phas ...


2
Joseph G Marcinkiewicz, Prakash B Shahi, Michael I Henderson: Control systems and methods for permanent magnet rotating machines. Emerson Electric Co, Harness Dickey & Pierce, April 24, 2007: US07208895 (41 worldwide citation)

Systems and methods for controlling a rotating electromagnetic machine. The rotating machine, such as a permanent magnet motor or hybrid switched reluctance motor, includes a stator having a plurality of phase windings and a rotor that rotates relative to the stator. A drive is connected to the phas ...


3
Prakash B Shahi, Arthur E Woodward, Joseph G Marcinkiewicz, Michael I Henderson: Control systems and methods for starting permanent magnet rotating machines. Emerson Electric Co, Harness Dickey & Pierce, May 20, 2008: US07375485 (38 worldwide citation)

Systems and methods for controlling a rotating electromagnetic machine. The rotating machine, such as a permanent magnet motor or hybrid switched reluctance motor, includes a stator having a plurality of phase windings and a rotor that rotates relative to the stator. A drive is connected to the phas ...


4
Joseph G Marcinkiewicz, Arthur E Woodard, Prakash B Shahi, Mark E Carrier, Michael I Henderson: Low noise heating, ventilating and/or air conditioning (HVAC) systems. Emerson Electric Co, Harness Dickey & Pierce, December 1, 2009: US07626349 (32 worldwide citation)

A heating, ventilating and/or air conditioning (HVAC) system includes a system controller, a motor controller, an air-moving component, and a permanent magnet motor having a stationary assembly, a rotatable assembly in magnetic coupling relation to the stationary assembly, and a shaft coupled to the ...


5
Prakash B Shahi, Eric J Wildi, Mark E Carrier, Randy L Bomkamp, Hung M Pham, William P Butler: System and method for detecting fluid delivery system conditions based on motor parameters. Emerson Electric Co, Thompson Coburn, Steven M Ritchey Esq, Kristofer Biskeborn Esq, May 10, 2011: US07941294 (30 worldwide citation)

Systems and methods for detecting various system conditions in a fluid delivery system (such as an HVAC system) based on a motor parameter are disclosed. Embodiments of the present invention relate to detecting: filter condition, frozen coil condition, register condition, energy efficiency, system f ...


6
Joseph G Marcinkiewicz, Prakash B Shahi, Michael I Henderson: Sensorless control systems and methods for permanent magnet rotating machines. Emerson Electric Co, Harness Dickey & Pierce, September 1, 2009: US07583049 (23 worldwide citation)

Systems and methods for controlling a rotating electromagnetic machine. The rotating machine, such as a permanent magnet motor or hybrid switched reluctance motor, includes a stator having a plurality of phase windings and a rotor that rotates relative to the stator. A drive is connected to the phas ...


7
Arthur E Woodward, Prakash B Shahi, Ralph D Furmanek: PSC motor system for use in HVAC applications. Emerson Electric Co, Howrey Simon Arnold & White, October 5, 2004: US06801013 (22 worldwide citation)

A motor control system for use in heating, ventilation, and air conditioning applications includes a blower, a motor coupled to drive the blower, an inverter coupled to provide energization to the motor, and a controller coupled to the inverter. The controller provides signals to control the output ...


8
Arthur E Woodward, Prakash B Shahi, Ralph D Furmanek: PSC motor system for use in HVAC applications with field adjustment and fail-safe capabilities. Emerson Electric Co, Locke Liddell & Sapp PLLC, September 18, 2007: US07272302 (21 worldwide citation)

A field-adjustable motor control system includes a motor, an inverter coupled to provide energization to the motor, a controller coupled to the inverter, and a field adjustment circuit that provides field adjustment signals to the controller. The controller provides signals to control the output of ...


9
Arthur E Woodward, Prakash B Shahi, Ralph D Furmanek: PSC motor system for use in HVAC applications with improved start-up. Emerson Electric Co, Locke Liddell & Sapp, October 4, 2005: US06952088 (21 worldwide citation)

A motor control system for use in heating, ventilation and air conditioning applications including a blower and a motor coupled to drive the blower, an inverter coupled to provide energization to the motor, a relay capable of coupling the motor to the output of the inverter or to line power, and a c ...


10
Prakash B Shahi, Arthur E Woodward, Joseph G Marcinkiewicz, Michael I Henderson: Control systems and methods for permanent magnet rotating machines. Emerson Electric Co, Harness Dickey & Pierce, February 23, 2010: US07667423 (20 worldwide citation)

Systems and methods for controlling a rotating electromagnetic machine. The rotating machine, such as a permanent magnet motor or hybrid switched reluctance motor, includes a stator having a plurality of phase windings and a rotor that rotates relative to the stator. A drive is connected to the phas ...