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.

The circuit in Figure 1 (see circuit and table below) uses three ICs to generate a low-THD, constant-amplitude sine-wave output synchronized to an external square wave or pulse input signal that spans ...

Microcontroller addict [Debraj] decided to make his own programmable sine wave generator, and was able to put it together for under $40 USD. Other than low-cost, his list of requirements was as fol… ...

The circuit was successfully tested using a 1-kHz sine wave for the input with an amplitude of 4.5 V, and it produced a 1-V amplitude sine-wave output using a 1-V reference for the set point.

We all know that electric utilities in the United States generate electricity at various 60-Hz voltage levels that result in a sine wave waveform. The height, or amplitude, of this sine wave is called ...

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 ...

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.

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 ...