Patent ID: 8188773

Claim:
A voltage-controlled dual-slope square and triangular waveform generator, comprising: means for conveying current, the current conveying means consisting of a single positive polarity second-generation current conveyor having an x-input, a y-input, and a z-output, the x-input being configured as a reference input; first and second semiconductor switches operably connected to switch first and second voltages, respectively, the first voltage being positive with respect to ground potential and the second voltage being negative with respect to ground potential, switching output of the first and second semiconductor switches having a connection to the y-input of the single positive polarity second-generation current conveyor; an operational amplifier having a noninverting input, an inverting input, and an output, the output having a feedback connection to control inputs of the first and second switches, the inverting input being connected to the z-output of the single positive polarity second-generation current conveyor and a capacitor regulating a rate of charge connected to a minus input thereof; and a voltage divider operably connected to the output and the noninverting input of the operational amplifier to configure the operational amplifier as a Schmitt trigger, resistance ratios of the voltage divider adjusting a frequency of an electronic waveform produced at the output of the Schmitt trigger; wherein leading edge and trailing edge slopes of the electronic waveform are independently adjustable via values of the first and second voltages and the electronic waveform frequency adjustment is independent of the leading and trailing edge slope adjustments.