PULSE WIDTH MODULATOR USING OTRA BASED TIMER CIRCUIT

Abstract
This paper proposes a modified PWM circuit using OTRA based analog timer circuit. Designing a pulse width modulator circuit by employing the proposed analog timer circuit results in a waveform having variable duty cycle and time period. The timer circuit consists of comparators designed using OTRA and flip flops. The fabrication of timer circuit on a monolithic integrated circuit is easier as the carrier signal type is exponential and no additional circuitry is needed unlike for triangular and sawtooth pulses. The process parameters of 0.5 ┬Ám CMOS have been used for performing an intensive simulation of the proposed PWM circuit.

Authors
Dheeraj Singh Rajput1,Ritu Gupta2,Sankalp Shukla3,Deep Kishore Parsediya4
Indira Gandhi Engineering College, India1,2,3,Madhav Institute of Technology and Science, India4

Keywords
Timer Circuit, Pulse Width Modulator (PWM), OTRA, Flip-Flop
Published By :
ICTACT
Published In :
ICTACT Journal on Microelectronics
( Volume: 8 , Issue: 2 )
Date of Publication :
July 2022
DOI :

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