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[rashoba]

Hi,

I want to convert the Arduino PWM output that is in the range of 0 - 5V to an analog output in the range of 0-10V.

Circuit can be divided in two parts:

1) An RC filter to get an analog output from the PWM signal that Arduino outputs. I have read some information about this kind of filters and it's seems that there is a rule that establish the relation between the time constant of the RC filter and the period of the PWM signal: the RC time contant should be greater than the period. In my case the time constant is 100 times greater.

2) An operational amplifier with a gain of 2 to obtain the output in the range of 0-10V.


Thanks in advance.

[rplink3r]

Tested working:

https://www.pcdimmer.de/index.php/hardware/dmx512-hardware/dmx512-0-10v-output

[mucek]

If using opamp, a rail-to-rail opamp MUST be used to get whole 0-10 V range (if you use only single power supply), otherwise you won't get whole range up to 0 V.

[rashoba]

Hvala vam

[rashoba]