Reference signal circuit

Details Reference signal circuit Reference signal circuit

1983-04-11

1984-09-04

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Multiple mode systems

318603, 364181, G05B 1118

Patent

active

044699948

ABSTRACT:
In the control of prime movers, automatic and manually generated input signals should be able to be entered into the control system without undue control disturbance or perturbation. Likewise should an automatic signal fail, the switch to a last valid signal prior to entry into a manual mode is also desirable. An analog-digital hybrid circuit is described which includes a memory, storage, timing and manual input portions as well as certain select A or B circuits which allow for bumpless transfer between automatic manual and memory modes of operation.

REFERENCES:
patent: 3940593 (1976-02-01), Bleak et al.
patent: 3969619 (1976-07-01), Ramly et al.
patent: 4025762 (1977-05-01), Rossi et al.
patent: 4035620 (1977-07-01), Hobbs et al.
patent: 4141065 (1979-02-01), Sumi et al.
patent: 4227072 (1980-10-01), Fancy et al.

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