Good Afternoon all,
Probably a question asked a million times before, but,
I have a 12, switch 12v (0v) and 0v from my source,
and have a requirement for a 12v, switch 0v (12v) and 0v in my device.
where the switched 12v is normally 12v and goes down to 0v when active, and the device requires 0v normally, but 12v when activated.
Now i know i can use a transistor as a switch to do this, but its been a long time since i played with them - about 12 years! so no idea what i need/ how to calculate my requirements to source the correct transistor.
The transistor will carry no load as such, the device uses the 12v purely as a signal.
Can anyone recommend me the correct type of transistor?
Probably a question asked a million times before, but,
I have a 12, switch 12v (0v) and 0v from my source,
and have a requirement for a 12v, switch 0v (12v) and 0v in my device.
where the switched 12v is normally 12v and goes down to 0v when active, and the device requires 0v normally, but 12v when activated.
Now i know i can use a transistor as a switch to do this, but its been a long time since i played with them - about 12 years! so no idea what i need/ how to calculate my requirements to source the correct transistor.
The transistor will carry no load as such, the device uses the 12v purely as a signal.
Can anyone recommend me the correct type of transistor?