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.

Feeding it through R3 into D5/6 squashes it into a reasonable sine wave, thanks to the diodes’ log relationship between current and voltage (but see this Wikipedia article again). D5/6’s V F falls ...

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 ...

Figure 4: 19997 Hz 0dB sine wave sampled at 44.1kHz 16 bits . Looking at these graphs, it is easy to empathise with people who claim that digital audio can't even represent sine waves properly, and ...

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 ...

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.

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… ...

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 ...