I have an IC on PCB board. I'll need to put a switch to turn off the +5V power to the IC from time to time. However, I only have "normally-off" switch in hand. Anyone knows how to do this? Thanks.
You'll need some additional circuitry. Something to "invert" your normally=off switch. So when your switch is OFF, the circuit (power to IC) is ON, and vice-versa. A simple BJT/ FET/ MOSFET/ Relay comes to mind. Take our pick & work it out.
Dear ebuddy
Hi
It depends on how much is your required current through switch and how much should be the frequency of turning off and turning on .
Best Wishes
Goldsmith
Dear ebuddy
Hi
It depends on how much is your required current through switch and how much should be the frequency of turning off and turning on .
Best Wishes
Goldsmith
You don’ t get it… I understand there's push-to-make switch available, that returns to its normally open (off) position when you release the button, so using that diagram you may keep a closed circuit after pressing the button and disconnect the load for a second push, and that's similar to a toggle switch. :roll:
I'm not quite sure the question asker wants a 'toggle' switch. Does he ? He just wants to disconnect an IC's power when he presses a switch.
The principle used here is know as the "KISS".
I have an IC on PCB board. I'll need to put a switch to turn off the +5V power to the IC from time to time. However, I only have "normally-off" switch in hand. Anyone knows how to do this? Thanks.
ebuddy,
Learn and get idea from all the posts. Also consider time and money required to make changes to your normally off switch.
Consider feasibility for your case.