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Emulated ripple technique advances hysteretic switchmode supplies

Posted: 25 Feb 2008
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Keywords: ripple technique  hysteretic switchmode supplies  Emulated Ripple Mode 

The circuitry for hysteretic control in traditional switchmode power supplies is relatively simple and doesn't require compensation for stability, as with voltage- and current-mode regulators. Hysteretic control uses a comparator instead of an error amplifier to check if the output voltage is out of regulation. Emulated ripple mode (ERM) is the latest advance.

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