Constant-amplitude phase shifter

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02:43:59

Art of Electronics 3rd ed. Figure 2.37

green:  sinewave input with -180° phase
yellow: sinewave input with 0° phase
blue: sinewave output with phase 0°-180° determined by the variable resistor.

This circuit gives (for sinewave input) an output sinewave of adjustable phase (from 0° to 180°) and with constant amplitude.

The phase shift depends on the frequency of the input signal for a given setting of the potentiometer.

published 9 years ago

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