Sudden stop circuit for a brushless micromotor

Details Sudden stop circuit for a brushless micromotor Sudden stop circuit for a brushless micromotor

1985-01-18

1986-05-06

Shoop, Jr., William M.

Electricity: motive power systems

Braking

318254, H02P 300

Patent

active

045874689

ABSTRACT:
A sudden stop circuit for a brushless micromotor comprising a means for detecting the off state of the on/off switch of the brushless micromotor and a means for applying a locking pulse signal to at least one motor coil for a specified period depending on the off state detection signal generated by the detection means, whereby the motor rotor is braked by the electromagnetic force generated in the motor coil by the locking pulse signal. This circuit is compact and can apply great braking force to stop the motor in an extremely short time.

REFERENCES:
patent: 3864610 (1975-02-01), Kawamoto et al.
patent: 4438377 (1984-03-01), Sakai et al.
patent: 4521723 (1985-06-01), Claude

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