Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent
1983-09-15
1986-05-27
Roskoski, Bernard
Electricity: motive power systems
Braking
Automatic and/or with time-delay means
318326, 318341, 318314, 318599, H02P 516
Patent
active
045917680
ABSTRACT:
A control system for a motor which drives a tape capstan includes a capacitor (91) which holds a sample of a ramp signal which is sampled and restarted in response to tachometer pulses. The output of an amplifier (90, 100) which amplifies the difference between the stored voltage and a reference is integrated by a passive integrator (106, 92) coupled to the capacitor (91). The arrangement provides prediction of change of a discontinuous speed signal and is useful for slow running motors of low inertia.
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Almeida George B.
Ampex Corporation
Ip Shik Luen Paul
Kudelski S.A.
Roskoski Bernard
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