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relay-based polarity changeDescription
This circuit allows changing the polarity of the two outputs;
either A0/B1 is connected to A while A1/B0 is connected to B,
or A0/B1 is connected to B while A1/B0 is connected to A.
As shown here, the standard logic values are used as inputs to A and B.
However, in a more typical scenario, the supply voltage at A and B
could (and would) would be different from the relay-coil control supply
One application of this circuit is to change the rotation direction
of a DC-motor (e.g. model cars or trains, etc.).
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Impressum | 11.01.07