Motor control circuit with current limiter and bypass switch

Details Motor control circuit with current limiter and bypass switch Motor control circuit with current limiter and bypass switch

1987-04-10

1988-10-25

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

318254, 318433, G11B 1546, G11B 1928

Patent

active

047807733

ABSTRACT:
A spindle motor driving apparatus for a disc device in which in addition to a controller for operating a spindle motor at a predetermined speed, a switch for shorting a current limiting resistor provided between a motor power supply circuit and a driving circuit is closed in response to a predetermined condition after the motor is started.

REFERENCES:
patent: 4611252 (1986-09-01), Igata et al.
patent: 4706005 (1987-11-01), Iwako

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