Connect two digital activation to one input

Thread Starter

ocean750

Joined Jul 15, 2020
16
Hello.

I would like some help with this design.
I have a device that gets a digital activation (24VDC) from two different places.
They may both be at HIGH or both at LOW or just one of them HIGH .
I could not find an AND gate that works with 24 VDC.
Any suggestions how I should connect them ?

Thank you
 

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ericgibbs

Joined Jan 29, 2010
10,760
I have a device that gets a digital activation (24VDC) from two different places.

hi ocean,
Do you mean an OR Gate, your description of 'either one OR both' to activate, suggests a OR Gate.

You could use a diode Gate.

E
 

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Last edited:

Delta prime

Joined Nov 15, 2019
486
Hello there
:)
I don't think in and gate is what you need. You can make it any voltage you want 24 volt 5 volts 10
.
Circuit-Schematic-to-Design-AND-Gate-Using-NPN Transistor.png
your attachment you posted tells me nothing can you be more specific. If this is homework I apologize to everyone.
 
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