So I am Trying to Convert a 5v PWM signal from an Arduino to a 0-10 v analog signal to drive a VFD.
the way i have come up with is simple i use two transistor (one to convert from 5 to 10v pwm and one to invert the inverted pwm) and a Linear Voltage Regulator to get 10v PWM and the an RC filter to convert pwm to analog.
Attached is the drawing of my circuit.
Now the problem is that it works great without the RC filter bt when I introduce the RC filter the voltage dropd drastically and even at a 100% signal the max voltage I get is 2.6v.
I dont know why that is happening.
May be its because of the transistor m using is BC547.
or is it because of the RC filter design???
the way i have come up with is simple i use two transistor (one to convert from 5 to 10v pwm and one to invert the inverted pwm) and a Linear Voltage Regulator to get 10v PWM and the an RC filter to convert pwm to analog.
Attached is the drawing of my circuit.
Now the problem is that it works great without the RC filter bt when I introduce the RC filter the voltage dropd drastically and even at a 100% signal the max voltage I get is 2.6v.
I dont know why that is happening.
May be its because of the transistor m using is BC547.
or is it because of the RC filter design???