Apparatus for controlling a fluid-pressure differential cylinder actuator.

摘要

An apparatus for controlling a fluid-pressure differential cylinder actuator includes a pulse generator (207) for producing a pulse signal to be issued to a solenoid operated valve (4), (5) for controlling an inflow and an outflow of the cylinder actuator (2). The pulse signal thus issued is a high frequency pulse whose pulse repetition period is shorter than an on-off response time of the valve (4), (5) and also whose duty factor is variable.