Ultra-low Frequency Sawtooth Wave Generating Circuit of Common Components

Published:2011/6/14 13:16:00 Author:Michel | Keyword: Common Components, Ultra-low Frequency, Sawtooth Wave, Generating Circuit | From:SeekIC

Circuit's Functions People immediately associate with OP amp or miller integral circuit composed of discretes when we mention sawtooth wave. But long cycle ultra-low frequency sawtooth wave generating circuit causes linear deterioration because of OP amp input deviation or integral points capacitor insulation resistance.To solve this problem, we can use counter and D - A converter to make the time cycle not be restricted.But, if the output waveform is amplified it will be trapezoidal.Many D - A converter multiples are required to make the wave looks like it is a linearityand the specific multiples depend on application purposes.



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