Control system for an electro-pneumatic converter

Details Control system for an electro-pneumatic converter Control system for an electro-pneumatic converter

1983-02-22

1985-04-09

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

With counter-balancing pressure feedback to the modulating...

1374875, G05D 1600

Patent

active

045095477

ABSTRACT:
An electro-pneumatic control system (10) is provided having closed loop control of a D.C. motor (12) which is operated from a biased motor servo circuit (14) thereby eliminating the need for a negative power supply to provide bi-directional rotation. Closed loop control is provided by a feedback signal from a pressure transducer (26) monitoring the pressure output signal (22) of the mechanical servo assembly (20).

REFERENCES:
patent: 2863287 (1958-12-01), Berkman
patent: 2949273 (1960-08-01), Roper
patent: 3113582 (1963-12-01), Hudson
patent: 3315250 (1967-04-01), Higgins
PCT Application WO/80/01826; Jacobsson; Published 9/1980.

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