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average voltage to dc

W

Warren Thai

Jan 1, 1970
0
I need a circuit to take in a PWM signal (Vin) and output the average
voltage (Vo = D*Vin). Any ideas?
 
P

Phil Allison

Jan 1, 1970
0
"Warren Thai"
I need a circuit to take in a PWM signal (Vin) and output the average
voltage (Vo = D*Vin). Any ideas?


** Any low pass filter does that.




........ Phil
 
P

Phil Allison

Jan 1, 1970
0
"eddie"
a RC servo driving a pot does that


** 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
 
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