Re: [CAD_CAM_EDM_DRO] PWM vs. DAC?

maxnc15 wrote:

>Hi,
>
>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)
>
>

Perhaps he is using PWM plus some filtering to make a poor man's DAC?

Aaron