I usually have a couple of "voltage" things off to the side, making +5 and -5 or whatever, and have each opamp with little doglegs on its power pins, same net names.
Somewhere I thought I saw a circuit where the opamps were powered by little boxes with "+5" or something inside, with no other supply needed. Does that work? If so, how do you invoke it?
Also can one power ICs from circuit outputs on spice? ISTR finding the IC model I was using had no power pins.
NT
PSpice has power symbols thus: +5V O---x
The "x" doesn't show, but it's the pin.
It netlists as:
V1 x 0 +5V
I tried to draw a circle in LTspice, but the drawing tool is the most obtuse POS I've ever seen.
In PSpice you choose Draw/Circle, click on the center point, then drag it out to the desired diameter. ...Jim Thompson
In LTspice, you're detrmining anchor points of a bounding box. You can choose whether these anchor points are visible or not under the 'view' menu.
RL
I know, but that method it difficult to align objects. ...Jim Thompson
Possibly makes more sense when the line connection can only resolve at rt angles on the grid and not to a center.
RL
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