circuit_design:uebung_3.5.4 [MEXLE Wiki]

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<panel type="info" title="Exercise 3.5.4. Conversion of a unipolar signal into a bipolar signal"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 92%>

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You work in the company "HHN Mechatronics & Robotics" and are supposed to generate a bipolar signal ($-10 ~\rm V ... + 10 ~\rm V$) from a unipolar signal of a digital-to-analog converter ($0 ... 5 ~\rm V$) in a project. A colleague recommended the circuit shown on the right.

  - First, analyze what change is made by pressing the switch $S$. How does the output signal change?
  - Try to determine mathematically the relationship of $U_\rm O$ and $U_\rm I$ as $U_{\rm O}(U_{\rm I})$ by superposition.
  - The circuit still has the problem that for a positive positive half-wave the output is still negative. Which additional circuit must be provided so that this problem can be solved?

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