Control devices

Details Control devices Control devices

1977-03-16

1978-09-05

Hohauser, Herman

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

H02K 2720

Patent

active

041123409

ABSTRACT:
A manually rotatable control knob is coupled to a d.c. ironless motor which maintains rotation of the knob once it is initially spun by hand. The initial back e.m.f. of the motor is sensed and is used via a feedback loop having a particular time constant to determine the subsequent rotational speed of the knob. By correctly profiling the time constant the inertial effect of a heavy flywheel can be simulated.

REFERENCES:
patent: 3488756 (1970-01-01), Skrivanek, Jr.

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