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Stepper Motor Generator

Stepper Motor Generator
Stepper motors are a subject that keeps recurring. This little circuit changes a clock signal (from a square wave generator) into signals with a 90-degree phase difference, which are required to drive the stepper motor windings. The price we pay for the simplicity is that the frequency is reduced by a factor of four. This isn’t really a problem, since we just have to increase the input frequency to compensate.
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