Switch on/off and change between 30V and GND

Projects General Guidance
1

Hello all,

I have a little hobby project where I need to be able to do 3 different things on one line/wire.
I want to be able to feed up to +30V, but also switch it to GND. And I also need to switch the wire off, basically disconnect it alltogether.

I am all new to this stuff and I'm here to learn. How would I go about this?
I'm thinking a MOSFET for the on/off stuff and then maybe some transistors?

2

Any wiring suggestion for those "some transistors"?

1 Like
3

A half H-bridge can do what you want.

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4

Sorry mate, I know to little about this to make an example myself.

5

Could you point me to some random google image of such schematic? That would be just enough for me to move forward and learn the rest.

6

I think you should use 2 SPDT relay

7

You can buy such cheap modules (motor drivers...). Circuit diagrams in the data sheets of the chips.

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Hi, @Ballsack
Can you please tell us the application, what hardware does it involve and why you want to do a tri-state system.
HIGH, LOW, OPEN

Thanks.. Tom.. :smiley: :+1: :coffee: :australia:

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