Triangular and square wave generators based on multi-terminal active elements and their application in PWM

This paper deals with design of new solutions of the triangular and square wave generator and their application for pulse width modulation (PWM). The proposed circuitries employs modern active multi-terminal elements e.g. Current Follower Differential Input Transconductance Amplifier (CFDITA) or Universal Voltage Conveyor (UVC). These designs suppose an electronic adjustment of parameters (repeating frequency, duty cycle)