9/8/2023 0 Comments Phase shift controller setupThe starting point of a sine wave was zero amplitude at zero degrees, progressing to full positive amplitude at 90 degrees, zero at 180 degrees, full negative at 270 degrees, and back to the starting point of zero at 360 degrees. Earlier we saw how we could plot a “sine wave” by calculating the trigonometric sine function for angles ranging from 0 to 360 degrees, a full circle. In technical terms, this is called a phase shift. The two waves shown above (A versus B) are of the same amplitude and frequency, but they are out of step with each other. The graph in figure below illustrates an example of this. By “out of step,” I mean that the two waveforms are not synchronized: that their peaks and zero points do not match up at the same points in time. Things start to get complicated when we need to relate two or more AC voltages or currents that are out of step with each other.
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