1
James E Masino: Digital adaptive sensorless commutational drive controller for a brushless DC motor. Halliburton Energy Services, Krueger Iselin, July 3, 2007: US07239098 (49 worldwide citation)

Various embodiments of an electrical motor, a brushless DC motor controller, and applications thereof. In one embodiment, a fluid-moving device is provided with a brushless DC motor and a motor controller. The controller may include a set of comparators and a clocked digital circuit. The set of comp ...


2
James E Masino: Digital adaptive sensorless commutational drive controller for a brushless DC motor. Halliburton Energy Services, Conley Rose P C, April 18, 2006: US07030582 (32 worldwide citation)

Devices and methods for controlling brushless, sensorless DC motors are disclosed. In one embodiment, an electrical motor is provided with a rotor, a stator, and a semiconductor on insulator (SOI) application-specific integrated circuit (ASIC). The ASIC is configured to energize stator windings in a ...


3
James E Masino: Digital adaptive sensorless commutational drive controller for a brushless DC motor. Halliburton Energy Services, Conley Rose PC, May 31, 2005: US06901212 (32 worldwide citation)

A digitally adaptive controller circuit for commutating a brushless, sensorless, DC motor in either of two directions adapted to receive digital back electromotive force (BEMF) detector signals. The digital circuit is driven by an input clock that is adjustable to configure the motor controller for ...


4
Masino James E: Digital adaptive sensorless commutational drive controller for a brushless DC motor. Halliburton Energy Serv, June 15, 2005: EP1540808-A1

A digitally adaptive controller circuit for commutating a brushless, sensorless, DC motor in either of two directions adapted to receive digital back electromotive force (BEMF) detector signals. The digital circuit is driven by an input clock that is adjustable to configure the motor controller for ...


5
James E Masino: Digital adaptive sensorless commutational drive controller for a brushless DC motor. Halliburton Energy Services, Conley Rose PC, April 15, 2004: US20040070356-A1

Devices and methods for controlling brushless, sensorless DC motors are disclosed. In one embodiment, an electrical motor is provided with a rotor, a stator, and a semiconductor on insulator (SOI) application-specific integrated circuit (ASIC). The ASIC is configured to energize stator windings in a ...


6
James E Masino: Digital adaptive sensorless commutational drive controller for a brushless DC motor. Halliburton Energy Services, Conley Rose PC, July 8, 2004: US20040131342-A1

Various embodiments of an electrical motor, a brushless DC motor controller, and applications thereof. In one embodiment, a fluid-moving device is provided with a brushless DC motor and a motor controller. The controller may include a set of comparators and a clocked digital circuit. The set of comp ...


7
James E Masino: Digital adaptive sensorless commutational drive controller for a brushless DC motor. Halliburton Energy Services, Conley Rose PC, December 18, 2003: US20030231875-A1

A digitally adaptive controller circuit for commutating a brushless, sensorless, DC motor in either of two directions adapted to receive digital back electromotive force (BEMF) detector signals. The digital circuit is driven by an input clock that is adjustable to configure the motor controller for ...


8
Masino James E: Digital adaptive sensorless commutational drive controller for a brushless dc motor. Halliburton Energy Services, KRUEGER Daniel J, December 24, 2003: WO/2003/107526

A digitally adaptive controller circuit (100) for commutating a brushless, sensorless, DC motor (110) in either of two directions adapted to receive digital back electromotive force (BEMF) detector (130) signals. The digital circuit is driven by an input clock that is adjustable to configure the mot ...