Safety device for video cassette recorder

Details Safety device for video cassette recorder Safety device for video cassette recorder

1989-08-28

1991-01-15

Ro, Bentso

Electricity: motive power systems

Limitation of motor load, current, torque or force

318258, 318265, 318285, 318293, 318484, H02P 308

Patent

active

049856669

ABSTRACT:
Motor control apparatus comprised of a drive circuit for supplying drive current to a motor, an overload detector coupled to the motor for detecting the magnitude of the motor current to produce an output signal if that current exceeds a predetermined threshold level caused by motor overload, and a control circuit coupled to the drive circuit and responsive to the output signal for controlling the drive current supplied to the motor, thereby controlling motor operation.

REFERENCES:
patent: 3532567 (1985-07-01), Kade
patent: 3551770 (1970-12-01), Isaacs
patent: 3851235 (1974-11-01), Harrison
patent: 4494181 (1985-01-01), Ramlohr et al.
patent: 4562387 (1985-12-01), Lehnhoff
patent: 4568864 (1986-02-01), Gisske
patent: 4611154 (1986-09-01), Lambropoulos et al.
patent: 4633573 (1987-05-01), Maetani et al.
patent: 4644234 (1987-02-01), Nola
patent: 4667356 (1987-06-01), Tsuneda et al.
patent: 4686438 (1987-08-01), Ohe et al.
patent: 4686598 (1987-08-01), Herr
patent: 4710686 (1987-12-01), Guzik
patent: 4765426 (1988-08-01), Shimizu
patent: 4818924 (1989-04-01), Burney

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