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Title: Reducing current reversal time in electric motor control

Patent ·
OSTI ID:1163196

The time required to reverse current flow in an electric motor is reduced by exploiting inductive current that persists in the motor when power is temporarily removed. Energy associated with this inductive current is used to initiate reverse current flow in the motor.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
8,878,473
Application Number:
13/152,067
OSTI ID:
1163196
Resource Relation:
Patent File Date: 2011 Jun 02
Country of Publication:
United States
Language:
English

References (6)

Motor controls, refrigeration systems and methods of motor operation and control patent July 1993
Circuit for driving two power mosfets in a half-bridge configuration patent April 1995
Single phase motor drive patent January 1999
Resonant circuit control system for stepper motors patent October 2001
Motor control circuit for supplying a controllable driving current patent September 2005
Single coil, direct current permanent magnet brushless motor with voltage boost patent-application June 2005

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