I am using an Arduino and I want to power an external device. As I understand it the most I can output from the Arduino is 5v and 500ma. I need to increase this to 12v and 5a. It has been suggested that I can do this by running through a transistor.
Can anyone please advise if this is correct and what transistor I should use for this application.
Thanks, Daniel.
In reply to Do not use transistor. by Sourav Gupta
To that end, I tried a regular audio amp single transistor circuit and it didn’t seem that loud. Is power mosfet a better Transistor to do these basic circuits? Not ready to work with op amps yet.
In reply to Do not use transistor. by Sourav Gupta
Hi Sourav, thanks for the reply. Is there a type of MOSFET that would be best to use?
Thanks, Daniel.
Sourav Gupta
Joined February 12, 2018 696Monday at 02:11 PM
Transistor is a current control device. DO not use it for 12V 5A. Insted, use a power mosfet.