Amplifier +V, -V 0V

[wiredmonkey]

Hi all, this is not audio related but I figure the concepts are very much in the realm of everyone here and was wondering if anyone had an idea about it.

Basically, I'm trying to build a circuit that will take a high/low signal from a microcontroller and output either a +V, -V or 0V at relatively high power (approx 10A continious, 50V).

Any help is greaaaaaaaaaaaaaaaaaaaatly appreciated 😀

Cheers!

 

[Nelson Pass]

Two bits for control.

+5 on bit 0 gets you v+ out

0 on bit 1 gets you v- out

o on bit 0 and +5 on bit 1 gets you 0V out

+5 on bit 0 and 0 on bit 1 gets you excitement.

probably want some source degeneration resistance on
the input devices to limit their drive current.

 

[wiredmonkey]

Thank you so much for that circuit - exactly what i was after 🙂

 

[Iain McNeill]

+5 on bit 0 and 0 on bit 1 gets you excitement.

...and fresh underwear

😀


technically, the 0V state is high impedance and will be whatever the receiving circuit pulls towards.