Hi all,
I am doing a PCB and before finally making it, i would like to know something. I have a PIC giving some amount of Ampere at 5v to the Base of a NPN bipolar transitor. And from collector (and additionnally to emitter) i have a coil working with a different power supply of 5v. My question is : Do I need to link both ground (ground1 from 5v(usb) supply, and ground2 from 5v(12v through 5v regulator) supply) together to get the transistor do his job?
thanks a lot!![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I am doing a PCB and before finally making it, i would like to know something. I have a PIC giving some amount of Ampere at 5v to the Base of a NPN bipolar transitor. And from collector (and additionnally to emitter) i have a coil working with a different power supply of 5v. My question is : Do I need to link both ground (ground1 from 5v(usb) supply, and ground2 from 5v(12v through 5v regulator) supply) together to get the transistor do his job?
thanks a lot!