Daily Archives: 22-November-2012

Trapezoids Better Than Sinusoids?

Sinusoids hold a revered place in electrical engineering -- they should. However, I do encounter quite a few trapezoids in telecom power systems. During a meeting the other day, I was asked "Why do we use trapezoidal waveforms for Alternating Current (AC) signals like ringer voltages and remote power systems." It was a good question. I have written about the trapezoidal waveform before, but I have never explained why the trapezoid is used so frequently. Continue reading

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