Schmitt Trigger Electronic Circuits

Schmitt Trigger Circuits
Last Updated on: Friday, February 05, 2010 10:05 AM

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Add a Schmitt trigger function to CPLDs FPGAs & applications - 10/13/05 EDN-Design Ideas: For slow-slewing signals, hysteresis solves trigger problem.....(design idea added 11/05)

Changes Improve Schmitt Trigger - 05/13/99 EDN-Design Ideas:.....(design idea added 11/05)

Configurable logic gates' Schmitt inputs make versatile monostables - 05/25/06 EDN-Design Ideas: Single-gate configurable logic forms one-shots and trigger circuits.....(design idea added 5/07)

Contact debouncing algorithm emulates Schmitt trigger - 07/07/05 EDN-Design Ideas: Another approach to solving the ubiquitous contact debounce problem.....(design idea added 6/06)

DPP Adds versatility to VFC - 11/14/02 EDN-Design Ideas: The basic VFC (voltage-to-frequency converter)in Figure 1 comprises an integrator (IC1)and a Schmitt-trigger circuit (IC2). The integrator converts the dc input voltage, VIN , to a linear voltage ramp, and the Schmitt trigger sets the limits of the integrator's output voltage. Feedback around both circuits provides the condition for oscillation.... (added 12/04)

Oscillator Extends Schmitt Triggers' Reach - 01/19/95 EDN-Design Ideas: (design idea added 3/03)

Resistor network extends Schmitt trigger's reach - 09/13/01 EDN-Design Ideas: The circuit in Figure 1 shows a familiar technique for converting a low-level analog signal to digital form. Resistors R1 and R2 set the quiescent dc level at the Schmitt inverter's input to a value roughly equal to the midpoint of the hysteresis band. Capacitor C1 removes dc content from VIN, such that the Schmitt trigger's.....(design idea added 1/05)

SC Schmitt Comparator Head - A simple little design by Martin Keen and Wilf Rigter (added 6/06)

Schmidt trigger - In Dutch. Ik kan me voorstellen dat de lezer zijn wenkbrauwen fronst, een Schmitt trigger met transistoren? Die maak je toch met een OpAmp of met daarvoor speciale ontwikkelde IC's. Soms heb je toch het probleem dat je over een lage voedingsspanning beschikt,...(added 05/08)

Schmitt Trigger has Dynamic threshold - 06/05/97 EDN-Design Ideas: (design idea added 3/03)

Simple changes improve Schmitt trigger - 05/13/99 EDN-Design Ideas:.....(design idea added 11/05)

Transistor Schmitt Trigger Oscillator - The Schmitt Trigger oscillator below employs 3 transistors, 6 resistors and a capacitor to generate a square waveform. Pulse waveforms can be generated with an additional diode and resistor (R6). Q1 and Q2 are connected with a common emitter resistor (R1) so that the conduction of one transistor causes the other to turn off. Q3 is controlled.. (added 6/06)