Monday, August 11, 2025

Schmitt trigger for cleaning up noisy or slow-rising digital signals

 

A Schmitt trigger is a circuit that converts an analog input signal into a digital output signal with hysteresis. It's characterised by two different threshold voltages, one for the rising input signal and another for the falling input signal, which provides noise immunity and prevents oscillations.

Hot-Swap Circuits with Inrush Current Limiter

  To provide continuous current sensing and limiting, this hot-swap circuit uses a PNP transistor and a current sense resistor of 0.333R. Wh...