Electro-pneumatic control systems.

摘要

An electro-pneumatic control system (10) provides closed-loop control of a DC 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 a pressure output signal (22) of a mechanical servo assembly (20).