An Inexpensive Triangular Waveform Generator with Electronic Switching

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Abstract
A triangular waveform generator is described which can be used for cyclic voltamraetry at moderate scan rates (-1). The circuit is based on three operational amplifiers and employs electronic switching in place of mechanical switching at the voltage scan limits. The circuit features independent control of the positive and negative scan limits, the facility for manual reversal of scan direction, and automatic termination of the voltage scan at either scan limit.