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The sine wave, V(t), is completely described by this equation. V a controls its peak amplitude, V o controls the amplitude offset, f controls the frequency, and j controls the phase. When an equation ...
Its amplitude frequency spectrum (Figure 4)clearly shows its composition. Note that the components of the interestcan individually be analyzed. That is the power of the transform. Figure 4. The ...
However, for a sine wave, the only zeros come at 1/2 the frequency. For a cosine wave, the zeros start at time zero and also repeat every 180 degrees. Make a copy of the spreadsheet and overwrite ...
A sine wave is an S-shaped waveform defined by the mathematical function y = sin x. It is depicted graphically as two semi-circular curves that alternate above and below a center line.
Instead of using the peak value, however, we describe the amplitude of a sine wave as its effective, or root-mean-square (rms), value. One key parameter derived from the two ... This is expressed by ...
One application I recently dealt with needed multiple phases of sine waves, all of equal amplitude. I considered 45°, 60°, and 90° differences, but decided 60° was the best solution.
I have just discovered that Apex Microtechnology of Arizona actually makes a chip, the SWR200 Precision Sine Wave Reference, to do much the same thing, a nice low-distortion sine wave with a ...
Guest columnist Bob Marchetti senior manager of product marketing at Vicor describes how sine amplitude conversion techniques can be used to improve power efficiency of DC-DC converters. Most systems ...