1
William R Archer, Roger C Becerra, Brian L Beifus, Mark A Brattoli, Rajendra K Shah: Control system and methods for a multiparameter electronically commutated motor. General Electric Company, Ralph E Krisher Jr, January 7, 1997: US05592058 (187 worldwide citation)

A system which drives a component of a heating, ventilating, and/or air conditioning (HVAC) system in response to a system control signal such as a temperature signal provided by a thermostat. The system includes a motor having a stationary assembly and a rotatable assembly. The rotatable assembly i ...


2
Roger C Becerra, Brian L Beifus, William R Archer: Methods and systems for controlling air filtration systems. General Electric Company, Karl Vick Esq, Damian Wasserbauer Esq, Armstrong Teasdale, July 23, 2002: US06423118 (92 worldwide citation)

Methods and control systems for improving performance in an air filtration system are disclosed. The method includes monitoring performance of a blower motor in the air filtration system and adjusting blower motor torque based upon a measured airflow or a measured static air pressure within the air ...


3
William R Archer, Roger C Becerra, Brian L Beifus, Mark A Brattoli, David M Erdman, Thomas M Jahns, Gerald B Kliman, Wen Liang Soong, Charles M Stephens, Eric R Benedict, Michael W Degner: Quadrature axis winding for sensorless rotor angular position control of single phase permanent magnet motor. General Electric Company, Enrique J Mora, August 18, 1998: US05796194 (59 worldwide citation)

A single phase permanent magnet motor includes a rotor, a stator, and a quadrature axis winding positioned out-of-phase from a main winding of the stator for generating an output signal representative of rotor angular position. An integrator can be coupled to the quadrature axis winding for phase re ...


4
William R Archer, Roger C Becerra, Brian L Beifus, Mark A Brattoli, David M Erdman, Thomas M Jahns, Gerald B Kliman, Wen Liang Soong, Charles M Stephens, Eric R Benedict, Michael W Degner: Quadrature axis winding for sensorless rotor angular position control of single phase permanent magnet motor. General Electric Company, Damian Wasserbauer, Senniger Powers Leavitt & Roedel, November 16, 1999: US05986419 (56 worldwide citation)

A single phase permanent magnet motor includes a rotor, a stator, and a quadrature axis winding positioned out-of-phase from a main winding of the stator for generating an output signal representative of rotor angular position. An integrator can be coupled to the quadrature axis winding for phase re ...


5
Roger C Becerra: Application specific integrated circuit for controlling power devices for commutating a motor based on the back emf of motor. General Electric Company, Damian Wasserbauer, Senniger Powers Leavitt & Roedel, April 10, 2001: US06215261 (54 worldwide citation)

A motor for use with a power supply comprising a stator, a rotor in magnetic coupling relation to the stator, a plurality of insulated gate bipolar transistors (IGBTs), a user interface, a microcontroller and an application specific integrated circuit (ASIC). Each IGBT has a control input port and i ...


6
Roger C Becerra: Power conversion circuit for a motor. General Electric Company, Wayne O Traynham, Senniger Powers Leavitt & Roedel, November 30, 1999: US05994869 (37 worldwide citation)

A motor system and method providing improved power factor and harmonic control of power supplied to a motor. The system and method employs a power conversion circuit connected to an AC voltage source for supplying power to a power supply link of the motor. The power conversion circuit includes a rec ...


7
Roger C Becerra, Mark A Brattoli: Systems and methods for protecting a single phase motor from circulating currents. General Electric Company, Ralph E Krisher Jr, October 7, 1997: US05675231 (36 worldwide citation)

A single phase motor system and method for preventing excessive circulating currents in the motor. The motor has a power supply link including power switches responsive to a motor control signal for connecting the motor winding to a power supply in alternating on and off intervals. A current sensing ...


8
Roger C Becerra: Method and apparatus for calibrating a permanent-magnet motor using back EMF measurement. General Electric Company, Damian G Wasserbauer, Carl B Horton, Welsh & Katz, April 4, 2000: US06046554 (36 worldwide citation)

A motor which has a first motor winding that provides a motor back EMF during operation of the motor, and which is operable by a supply current to develop, at a predetermined nominal rotational speed, a predetermined nominal torque corresponding to a predetermined operating current and a predetermin ...


9
William R Archer, Roger C Becerra, Brian L Beifus, Kenneth E Zick: Interface between programmable electronically commutated motor and personal computer and method of operation. General Electric Company, Ralph E Krisher Jr, December 5, 1995: US05473229 (34 worldwide citation)

A microcontroller with external memory interacts with a host computer or terminal via a fully isolated RS232 serial interface. An eight-bit D/A converter transforms signals generated digitally in the microcontroller. The low level analog signal at the D/A output is further amplified in a power ampli ...


10
Roger C Becerra, William R Archer, Brian L Beifus, Mark A Brattoli: Digital communication link. Regal Beloit Corporation, Armstrong Teasdale, September 12, 2006: US07106019 (33 worldwide citation)

A serial interface circuit electrically connected to a controller to control an electric motor. The interface circuit includes a controller circuit and a motor circuit. The controller circuit includes a transmitter and a receiver circuit, and the motor circuit includes a transmitter circuit and a re ...