Hi everyone! First post here, I've read through allaboutcircuits.com, though.
At work we are using some devices that require 7V and 1.2-1.5A and we are powering them with a 24V DC supply(everything else in the panels containing these units use 24V.) Using a simple LM338 adjustable circuit is proving to be more and more trouble due to the LM338 overheating. We cannot fit a large enough heatsink on them due to size constraints of the boards.
So, I'm trying to come up with a better way of getting the required 7V and keep the circuit small and inexpensive.
My first thought was running something like a 7812 or 7815 in front of an adjustable regulator, but using simulation programs I can't tell if this reduces the heat production. This post asking for help may be a bit premature as I have not yet tried anything outside of my simulator, but I thought maybe someone could give me some ideas or different methods of making a circuit like this.
Thank you in advance.
At work we are using some devices that require 7V and 1.2-1.5A and we are powering them with a 24V DC supply(everything else in the panels containing these units use 24V.) Using a simple LM338 adjustable circuit is proving to be more and more trouble due to the LM338 overheating. We cannot fit a large enough heatsink on them due to size constraints of the boards.
So, I'm trying to come up with a better way of getting the required 7V and keep the circuit small and inexpensive.
My first thought was running something like a 7812 or 7815 in front of an adjustable regulator, but using simulation programs I can't tell if this reduces the heat production. This post asking for help may be a bit premature as I have not yet tried anything outside of my simulator, but I thought maybe someone could give me some ideas or different methods of making a circuit like this.
Thank you in advance.