All About Circuits

Switching a High Power & Low Power Load Together??

J

Thread Starter

joe426

Joined Aug 11, 2009
39
I have a PCB which is powered by 5v @ 1A and a motor pack which is powered by 50v @ 25A. Is it a good idea to switch these both "on" at the same time using a DPST switch such as this one? Or would there be a LOT of noise? Thanks!
 
Last edited:
praondevou

praondevou

Joined Jul 9, 2011
2,942
It is possible to switch both supplies with one switch. If it can cause any problems depends on your application and layout/wiring.
 
GetDeviceInfo

GetDeviceInfo

Joined Jun 7, 2009
2,196
generally not a good idea to combining sources. Your PCB will be sorrily messed up if there's a short at the switch. Your switch may be more than adequate, but in the practical world, shorts often happen due to improper strain relief, poor connections, etc.
 
You must log in or register to reply here.
Thread starter Similar threads Forum Replies Date
M High Side Switching of IGBT Power Electronics 23
MrsssSu Small pull-down resistor for mosfet (fast switching, high capacitance) General Electronics Chat 8
electromeow Relay or MOSFET for high current? Power Electronics 8
plombart Designing a high intensity LED array with cooling fans wired to a single current switching power supply General Electronics Chat 8
D High side power switching advice. Power Electronics 0
Similar threads
High Side Switching of IGBT
Small pull-down resistor for mosfet (fast switching, high capacitance)
Relay or MOSFET for high current?
Designing a high intensity LED array with cooling fans wired to a single current switching power supply
High side power switching advice.

You May Also Like

Top