eagle-elec
Newbie
Hi every one . I had found this circuit in internet . it converts pwm of mcu to analog voltage up to 10 V . i need the second part filter parameters . i think so tha second part is a three stage filter and the opamp side is a lowpass MFP filter . most the samples circuits on internet had input side into opamp on inverting pin . but this one has an input signal on non inverting pin .
i need to know , filter type , Transfer function , Q factor , Cut-off frequency . could some one help me please ?
i need to know , filter type , Transfer function , Q factor , Cut-off frequency . could some one help me please ?