Friday, March 29, 2013

Math with Op Amps

Op (operational, like mathematical operations) Amps can be used to do math with voltages.  For example:
Lab 8-7 Summing Amplifier:
Which will basically add the two signals together, a great way to add a DC offset to an oscillating signal.
Another way to do this?  I will think about that some more and get back to you

Question: What is a circuit that will subtract?

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