ICTACT Journal on Microelectronics

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

PULSE WIDTH MODULATOR USING OTRA BASED TIMER CIRCUIT


Affiliations
1 Department of Electronics and Communication Engineering, Indira Gandhi Engineering College., India
2 4Department of Electronics and Communication Engineering, Madhav Institute of Technology and Science., India
     

   Subscribe/Renew Journal


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 µm CMOS have been used for performing an intensive simulation of the proposed PWM circuit.

Keywords

Timer Circuit, Pulse Width Modulator (PWM), OTRA, Flip-Flop
Subscription Login to verify subscription
User
Notifications
Font Size

  • C. Toumazou, “Analog IC Design: the Current-Mode Approach”, Peter Peregrinus, 1990.

  • Franco Sergio, “Design with Opamp and Analog Integrated Circuits”, McGraw-Hill International, 1988.

  • J.J. Chen, H.W. Tsao and C.C. Chen, “Operational Transresistance Amplifier using CMOS Technology”, Electronics Letters, Vol. 28, No. 22, p. 2087-2088, 1992.

  • Y.K.L.H.C. Chien, “Single OTRA-Based Current-Mode Monostable Multivibrator with Two Triggering Modes and a Reduced Recovery Time”, IET Circuits Devices Systems, Vol. 1, No. 3, pp. 257-261, 2007.

  • Yu-Kang Lo and Hung-Chun Chien, “Current-Mode Monostable Multivibrators Using OTRAs”, IEEE Transactions on circuits and Systems-II: Express Briefs, Vol. 53, No. 11, pp. 1-12, 2006.

  • J.W. Kolar, H. Ertl and F.C. Zach, “Influence of the Modulation Method on the Conduction and Switching Losses of a PWM Converter System”, IEEE Transactions on Industry Applications, Vol. 27, No. 6, pp. 1063-1075, 1991.

  • J.G. Cho, J.A. Sabate, G. Hua and F.C. Lee, “Zero-Voltage and Zero Current-Switching Full Bridge PWM Converter for High-Power Applications”, IEEE Transactions on Power Electronics, Vol. 11, No. 4, pp. 622-628, 1996.

  • R. Pongiannan, S. Paramasivam, and Y. Narri, “Dynamically Reconfigurable PWM Controller for ThreePhase Voltage-Source Inverters”, IEEE Transactions on Power Electronics, Vol. 26, pp. 1790-1799, 2011.

  • S.K. Sahoo, A. Ramulu, S. Batta and S. Duggal, “Performance Analysis and Simulation of Three Phase Voltage Source Inverter using Basic PWM Techniques”, Proceedings of International Conference on Sustainable Energy and Intelligent Systems, pp. 1-7, 2012.

  • C. Bassi, M. Filippo, D. Giulivo and A. Tessarolo, “Experimental Assessment of Medium-Voltage Induction Motor Performance under Multilevel PWM Inverter DHEERAJ SINGH RAJPUT et al.: PULSE WIDTH MODULATOR USING OTRA BASED TIMER CIRCUIT 1362 Supply”, Proceedings of International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion, pp. 253-258, 2012.

  • Y. Lee and J. Kim, “A Novel Enhanced Inverted PWM Driving Scheme for Three-Phase BLDC Motor Drive”, Proceedings of IEEE International Conference on Consumer Electronics, pp. 206-212, 2018.

  • P. Colantonio, E. Cipriani, F. Giannini, L. Cabria, I.S. Gosh, U. Altmann, R. Follmann and N. Ayllon, “Development of a PWM based Transmitter for P-Band SAR Applications”, Proceedings of International Conference on Microwave, Radar and Wireless Communications, pp. 1-4, 2016.

  • K. Cheng, “Implementation of High Resolution Digital Pulse Width Modulator Based on FPGA”, Proceedings of IEEE International Conference on Signal, Information and Data Processing, pp. 1-5, 2019.

  • S. KılıncK. N. Salama and U.C Sam, “Realization of Fully Controllable Negative Inductance with Single Operational Transresistance Amplifier”, Circuits Systems Signal Processing, Vol. 2, No. 1, pp. 47-57, 2006.

  • C. Cakir, U. Cam and O. Cicekoglu, “Novel All Pass Filter Configuration Employing Single OTRA”, IEEE Transactions on Circuits and Systems-II, Vol. 52, No. 3, pp. 122-125, 2005.

  • A.K. Kafrawy and A.M. Soliman, “New CMOS Operational Transresistance Amplifier”, Proceedings of IEEE International Conference on Microelectronic, pp. 31-34, 2006.

  • K.N. Salamaa and A.M. Soliman, “CMOS Operational Transresistance Amplifier for Analog Signal Processing”, Microelectronics Journal, Vol. 30, pp. 235–245, 1999.

  • S. Banerjee, M. Ghosh and P. Mondal, “OTRA based Realization of Second Order Inverse Lowpass Filter and Inverse Bandpass Filter”, Proceedings of International Conference on Communication and Signal Processing, pp. 148-152, 2019.

  • H. Mostafa and A.M. Soliman, “A Modified CMOS Realization of the Operational Transresistance Amplifier (OTRA)”, Frequenz, Vol. 60, No. 3-4, pp. 70-76, 2006.

  • Olawale J. Omotosho and Samson O. Ogunlere, “Design Analysis and Circuit Enhancements of SR-Flip Flops”, Journal of Engineering Sciences and Research Technology, Vol. 2, pp. 2433-2446, 2013.

  • M. Siripruchyanun, P. Wardkein and W. Sangpisit, “Simple Pulse Width Modulator using Current Conveyor”, Proceedings of International Conference on Recent Technology, pp. 452-457, 2000.

  • PWM Basics, Pulse Width Modulator Amplifier, Available at https://www.electronics-tutorials.ws/blog/pulse-widthmodulation.html, Accessed at 2021.

  • H. Kim, H.J. Kim and W.S. Chung, “Pulse Width Modulation Circuits using CMOS OTAs”, IEEE Transactions on Circuits and Systems I, Vol. 54, No. 9, pp. 1869-1878, 2007.

  • M. Siripruchyanun and P. Wardkein, “A Fully Independently Adjustable, Integrable Simple Current Controlled Oscillator and Derivative PWM Signal Generator”, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. 86, No. 12, pp. 3119-3126, 2003.

  • R.K. Ranjan and K. Mazumdar, “Generation of Square and Triangular Wave with Independently Controllable Frequency and Amplitude using OTAs only and its Application in PWM”, Analog Integrated Circuits and Signal Processing, Vol. 92, pp. 15-27, 2017.

  • D.S. Rajput and R. Singh, “Timer Circuit using OTRA and its Application as Stable and Monostable Multivibrator”, Proceedings of International Conference on Electronics and Communication Systems, pp. 1047-1050, 2015


Abstract Views: 183

PDF Views: 0




  • PULSE WIDTH MODULATOR USING OTRA BASED TIMER CIRCUIT

Abstract Views: 183  |  PDF Views: 0

Authors

Dheeraj Singh Rajput
Department of Electronics and Communication Engineering, Indira Gandhi Engineering College., India
Ritu Gupta
Department of Electronics and Communication Engineering, Indira Gandhi Engineering College., India
Sankalp Shukla
Department of Electronics and Communication Engineering, Indira Gandhi Engineering College., India
Deep Kishore Parsediya
4Department of Electronics and Communication Engineering, Madhav Institute of Technology and Science., India

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 µm CMOS have been used for performing an intensive simulation of the proposed PWM circuit.

Keywords


Timer Circuit, Pulse Width Modulator (PWM), OTRA, Flip-Flop

References