Triangle wave / square wave output voltage-controlled oscillator circuit diagram

Published:2012/11/11 20:08:00 Author:Ecco | Keyword: Triangle wave, square wave , output, voltage-controlled oscillator | From:SeekIC

The circuit is composed of the polarity switching circuit, inverting integrator and delay comparator. It uses VT1 switch for polarity switching, the amplifier A1 makes noninverting and inverting work alternately. For example, when VT1 gets conduction, A1 operates for an inverting amplifier. Integrator A2 can integrate the voltage gotten from polarity switching circuit in accordance with the R1 and C1, when points reach Delay comparator's reference voltage, the integrator will reverse and continuously repeat this operation.



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