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How do I implement the the function in Pspice?

\$V_s(t)=1.5u(t)-3u(t-.01)+1.5u(t-.02)\$

I know to use the VPULSE source but it has only two voltages as parameters but I need 3.

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  • 1
    \$\begingroup\$ ---> stack them \$\endgroup\$ – placeholder Mar 28 '13 at 15:35
  • \$\begingroup\$ I noticed you posted a previous question about a differencing op-amp circuit and I was wondering why you'd not "accepted" one of the answers. If you did get a decent answer you can "accept" it and you might get more responses to this question. Just my personal opinion. Anyway, to be a little more helpful, if you want 3V and you have 2 x 1.5V batteries, what should you do? \$\endgroup\$ – Andy aka Mar 28 '13 at 18:07
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Here I inverted the middle Vsource to get the negative voltage. You can do it with just changing the internal parameters.

enter image description here

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