1
Terrance L Flaig, Gavrik Peterson: Controller for a brushless DC motor. The Boeing Company, Christensen O Connor Johnson & Kindness, July 9, 1985: US04528486 (75 worldwide citation)

A controller for regulating the current applied to the windings of a brushless DC motor by pulse width modulating transistors arranged in a six-switch bridge. Current feedback signals are obtained from sense resistors provided in the lower legs of the bridge circuit and are employed to generate a lo ...


2
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 ...


3
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 ...


4
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 ...


5
Hak Won Kim: Inverter controller for brushless direct current motor. LG Electronics, Ostrolenk Faber Gerb & Soffen, October 13, 1998: US05821707 (6 worldwide citation)

In an inverter controller for a brushless DC motor, when the upper and lower pole power switching devices are sequentially operated, a commutating signal is applied so that a commutated power switching device is always turned on, and a pulse width modulated commutating signal is applied to the non-c ...


6
Klode Harald, Disser Robert John: Controller for a brushless DC motor. Gen Motors, June 12, 1996: EP0716499-A1 (3 worldwide citation)

A controller (30) for a brushless DC motor (20) provides driving signals (S1*, S2*, S3*) to an electronic commutator (32) in two distinctly different modes defined by a predetermined transition speed. An encoder (26) supplies motor position signals (S1, S2, S3) to the controller for use in generatin ...


7
Nagate Takashi, Uetake Akihito, Koike Yoshikazu, Tabata Kunio: A controller for a brushless DC motor without a position sensor.. Seiko Epson, September 13, 1995: EP0671811-A1 (2 worldwide citation)

The invention relates to a controller (24) for a brushless DC motor without position sensor including an inverter (22) adapted to drive the motor under chopper control (30, 31) and utilizing a counter electromotive force generated in stator coils of respective phases as a rotor is rotated in order t ...


8
Markus Schüssler: Controller for a brushless direct-current motor. MAGNA POWERTRAIN BAD HOMBURG, Gardner Linn Burkhart & Flory, October 10, 2017: US09787243 (1 worldwide citation)

A controller for a brushless direct-current motor having an upstream converter, which has a half-bridge having a pair of switching means for each phase winding of the motor, includes a measuring device or has a signal connection to a measuring device. The measuring device is associated with a half-b ...


9
Nagate Takashi, Uetake Akihito, Koike Yoshikazu, Tabata Kunio: A controller for a brushless DC motor without a position sensor. Seiko Epson, December 2, 1998: EP0881761-A1 (1 worldwide citation)

The invention relates to a controller (24; Fig. 1, 2; Fig. 12-17) for a brushless DC motor (1) without position sensor including an inverter (22) adapted to drive the motor (1) under chopper control and utilizing a counter electromotive force generated in stator coils (U, V, W) of respective phases ...


10
Uchiyama Tetsuomi: Controller for brushless DC motor. Minebea, September 8, 2005: JP2005-245076 (1 worldwide citation)

PROBLEM TO BE SOLVED: To provide a controller for brushless DC motor which can simply and easily control the brushless DC motor without interfering with the other processing.SOLUTION: This controller for a brushless DC motor is equipped with a sampling processing part 14 which performs sampling proc ...