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DC offset VS Superimposed DC voltage on AC waveform

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(*steve*)

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Last chance Danny...
 

Danny Daviss

Mar 16, 2013
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1. Uni-directional Waveforms - these waveforms are always positive or negative in nature flowing in one forward direction only as they do not cross the zero axis point. Common uni-directional waveforms include Square-wave timing signals, Clock pulses and Trigger pulses.

2. Bi-directional Waveforms - these waveforms are also called alternating waveforms as they alternate from a positive direction to a negative direction constantly crossing the zero axis point.

How does a tech know if the square waveform is a bi-directional square waveform?

The power supply is +12 and -12 volts
 
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