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Current-controllable saw-tooth waveform generators using current-tunable Schmitt trigger  

Chung, Won-Sup (School of Electronics and Information Engineering Cheongju University)
Lee, Myung-Ho (School of Electronics and Information Engineering Cheongju University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.44, no.7, 2007 , pp. 31-36 More about this Journal
Abstract
A saw-tooth waveform generator whose frequency can be controlled with a do bias current is proposed. The generator utilizes operational transconductance amplifiers (OTA's) as switching element. It features simple and wide sweep capability The circuit built with commercially avaliable components exhibits good linearity of current-to-frequency transfer characteristics and relatively low temperature sensitivity.
Keywords
Switching circuit; Saw-tooth waveform generator; Schmitt trigger; Integrator; Operation transconductance amplifier;
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  • Reference
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