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Sawtooth Generator
Circuits
Last Updated on:
Saturday, June 27, 2009 04:43 PM |
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Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors:
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DDS device produces sawtooth Waveform: 07/10/03 EDN Design Ideas /
(added 1/05) Ramp or sawtooth waveforms are useful for a broad range of
applications, including automatic-test equipment, benchtest equipment, and actuator
control. Discrete components typically set the waveform frequency. Unfortunately,
drift in these component values over time and temperature limits the accuracy of the
output frequency.... |
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Precision
Waveform Converter uses Sawtooth Wave: 03/01/96 EDN-Design Ideas / (Circuit
/ schematic design added 6/06) |
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SAW filters and resonators provide cheap and effective frequency control :
10/26/00 EDN-Design Ideas / (added 5/05) |
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Sawtooth
Generator Spans a 70 DB Range: 07/07/94 EDN-Design
Ideas / (Electronic Circuit diagram added 03/03) The circuit in Fig 1
demonstrates a simple method for generating a voltage-programmable sawtooth waveform
having a dynamic range greater than 70 dB. In addition to the sawtooth waveform, the
circuit also produces corresponding triangle- and square-wave outputs. The three ICs
and associated components cost a total of about $13. IC1's astable-multivibrator-type
V/F converter produces a square wave whose frequency is accurately proportional to the
converter's analog input and produces a differential 1.8 V p-p triangle wave of equal
frequency across its timing capacitor CT. IC2's video-difference amplifier level
shifts and amplifies this square wave to produce a 20 V p-p triangle wave. A high-pass
filter differentiates this signal to generate an in-phase square wave. The triangle
wave and differentiated signal drive the analog input and reference-comparator inputs
of IC3's gain-of-one balanced modulator.... |
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Sawtooth Wave Oscillator: (added 8/03) |
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