This circuit tutorial discusses a simple adjustable sawtooth waveform generator that features constant amplitude and independently adjustable rising and falling edges. The circuit uses simple current sources, a neat little diode ring electronic SPDT switch, and a comparator with hysteresis. Each of these circuits is described, and the overall circuit is presented along with waveforms from the various nodes in the circuit. A PDF file of the drawings in this video can be found here:
http://www.qsl.net/w/w2aew//youtube/Adjustable_Sawtooth_Generator.pdf
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