Speed controller for rotary machine

Details Speed controller for rotary machine Speed controller for rotary machine

1978-01-20

1980-12-30

Dobeck, B.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318318, 318341, H02P 516

Patent

active

042426189

ABSTRACT:
An apparatus for controlling rotation speed of a rotary machine such as a motor, the controlling being made by controlling astable period of output signal of monostable circuit 5, aimed at controlling the rotating speed of the rotary machine such as turntable of a record player and aimed at a drawing in phase control. The apparatus determines astable period of the monostable circuit by means of frequency of a signal from a reference frequency generator 6+7+8 or 6+7+9.

REFERENCES:
patent: 3340951 (1967-09-01), Vitt
patent: 3388764 (1968-06-01), Wood
patent: 3820893 (1974-06-01), Donohue et al.
patent: 4015180 (1977-03-01), Tetsugu et al.
patent: 4041362 (1977-08-01), Ichiyanagi
patent: 4114075 (1978-09-01), Minakuchi

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