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 ...

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 ...

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 ...

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.

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… ...

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 ...

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 ...