Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent
1994-09-30
1997-08-19
Masih, Karen
Electricity: motive power systems
Braking
Automatic and/or with time-delay means
318254, 318138, 318439, 3889281, H02K 710
Patent
active
056592310
ABSTRACT:
The present invention provides for electronic braking of DC brushless motors by developing a feedback signal based on the back EMF of the motor. This feedback signal is used to provide a signal to the motor permitting current flow from the motor into the controller of a controlled level to slow the motor down. Reliance on the back EMF of the motor eliminates the need for a commutation signal when an emergency stop is required.
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Campbell Brian R.
Svarovsky James E.
Allen-Bradley Company Inc.
Baxter Keith M.
Horn John J.
Masih Karen
Miller John M.
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