RE: [CAD_CAM_EDM_DRO] PWM vs. DAC?

The Vacuum Bleed Solenoids used in some automatic transmissions are
essentially a PWM proportional valve.





[maxnc15]I've hired an electronics man in Russia to produce an S-Curve
controller for a hydraulic robot project. He says PWM (Pulse Width
Modulation) is much more efficient than DAC (Digital to Analog Control)
[Aaron] Perhaps he is using PWM plus some filtering to make a poor man's
DAC?




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