Simulate automotive battery decay

[Mike W]

I have a project that I need to simulate battery decay.  PLC outputs generally operate in the 0 to 10 volt range.  I need to operate in the 10 to 14 volt range.  Anyone have a simple solution?

[Mike W]

I do not see the post I tried to enter earlier.  This is a second attempt so ignore it if it is repeated.  I am trying to find a way to simulate an automotive battery charge discharge cycle.  PLC outputs are rated 0 to 10 volts.  Can I simply stack it on a 5 volt power supply like two batteries to offset it 5 volts?  If not how do you recommend simulating 10 to 15 volt range.

[Joe Tauser]

Mike,

 

If you add an isolated 5V supply in series with the 10V output you should be able to get 5 - 15 V out.  Kirchhoff's voltage law works whether it's a PLC circuit or not.  Have you tried it yet?

 

Joe T.