Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1996-12-23
1998-08-11
Cabeca, John W.
Electricity: motive power systems
Induction motor systems
Primary circuit control
318254, 318599, 363 41, 388811, H02P 05408
Patent
active
057931836
ABSTRACT:
A brushless DC motor system using PWM switching, in which the PWM switching is temporarily frozen whenever a zero crossing is expected in the back EMF. This avoids disruption of zero-crossing detection due to switching transients from the power transistor.
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Carobolante Francesco
Lopez Rafael S.
Beyer Steve D.
Cabeca John W.
Galanthay Theodore E.
Jorgenson Lisa K.
SGS-Thomson Microelectronics Inc.
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