ArduinoGuy
- May 18, 2018
- 3
- Joined
- May 18, 2018
- Messages
- 3
![0-10v amp light drivertest_pcb.jpg 0-10v amp light drivertest_pcb.jpg](https://maker.pro/forums/data/attachments/39/39564-789e0b81c3421b2440c3a26ee8bc4a92.jpg)
r3 r1 are 10k r5 Is 1kohm and c1 is 10uf cap to make input lp filter.
ua741 is op amp
it works but the problem im having is even with +in grounded there is always 3.6v on output.
if I put 5 volt I get 10v ect but at zero voltage input im getting 3.6v output. Can anyone shed some light.
im using a arduino to drive the 0-5v pwm and need to to give 0 to 10v output.