Pulse-width-modulation control of parallel three-way valves to s

Details Pulse-width-modulation control of parallel three-way valves to s Pulse-width-modulation control of parallel three-way valves to s

1985-11-06

1989-03-21

Garrett, Robert E.

Motors: expansible chamber type

With motive fluid valve

Electrically operated

91 28, 91443, 91DIG1, 318599, 318645, 307265, G05D 1620, G05D 318, F15B 909

Patent

active

048133396

ABSTRACT:
Parallel, pulse-width-modulation controlled three-way valves each both supply and exhaust a pressure chamber of a fluid actuator. The phase difference of the oscillator carrier waves of the pulse width modulation input circuit effectively increases the frequency of a net actuator carrier wave so as to quicken the response of the actuator.

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