average voltage to dc

I need a circuit to take in a PWM signal (Vin) and output the average voltage (Vo = D*Vin). Any ideas?

Reply to
Warren Thai
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"Warren Thai"

** Any low pass filter does that.

....... Phil

Reply to
Phil Allison

Reply to
eddie

"eddie"

** Be careful: the modulated pulse signal that RC servos operate from is a " PPM " one - for " Pulse Position Modulation " & not PWM.

With PPM, the high period varies from 1 to 2 mS with a repetition rate of circa 50 Hz.

There is also a frame pulse that sets the number of servos to be controlled.

....... Phil

Reply to
Phil Allison

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