Lowering DC voltage without using a voltage divider

Discussion in 'The Projects Forum' started by INORAN, Feb 1, 2016.

  1. INORAN

    Thread Starter New Member

    Jan 31, 2016
    1
    0
    Hey guys! I have project where I have to measure voltage from a 40VDC (max) source using an acquisition device that has an input limit of 5V. So far, the only viable solution I've come up with is the attached image, a voltage divider and a buffer for isolation. But I want to know if there's any other solution that I can build (so, no DC-to-DC converters).

    Thank you in advance [​IMG]

    PS: I know this is a good and easy solution, but I'd like to know the alternatives, if there's any. It's just me being stubborn for the sake of learning [​IMG]
     
  2. crutschow

    Expert

    Mar 14, 2008
    13,003
    3,232
    That's the simplest solution
    You could use a switched capacitor circuit to do the same thing but that's much more complicated.
     
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