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A Voltage-Mode PID-Controlled DC-DC Buck Converter Design for Automotive Applications

A Voltage-Mode PID-Controlled DC-DC Buck Converter Design for Automotive Applications

Anas Boutaghlaline (Laboratory of Computer Science and Interdisciplinary Physics (L.I.P.I), Normal Superior School, Sidi Mohamed Ben Abdellah University, Fez, Morocco), Karim El Khadiri (Laboratory of Computer Science and Interdisciplinary Physics (L.I.P.I), Normal Superior School, Sidi Mohamed Ben Abdellah University, Fez, Morocco), Mohammed Ouazzani Jamil (Laboratory of Systems and Sustainable Environment, Faculty of Engineering Sciences, Private University of Fez, Fez, Morocco), Hassan Qjidaa (Laboratory of Computer Science, Signals, Automation and Cognitivism, Faculty of Sciences, Sidi Mohamed Ben Abdellah University, Fez, Morocco), Driss Chenouni (Laboratory of Computer Science and Interdisciplinary Physics (L.I.P.I), Normal Superior School, Sidi Mohamed Ben Abdellah University, Fez, Morocco), and Ahmed Tahiri (Laboratory of Computer Science and Interdisciplinary Physics (L.I.P.I), Normal Superior School, Sidi Mohamed Ben Abdellah University, Fez, Morocco)
Copyright: © 2025 |Pages: 12
DOI: 10.4018/979-8-3693-3775-2.ch016
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Abstract

The chapter introduces the design and simulation of a PID-controlled DC-DC buck converter for regulating DC voltage from 12 V to 5 V for automotive applications using LTspice software. The simulation results show that the proposed converter with an op-amp-based PID controller can regulate the output voltage, even under load current variations. The converter operates at a switching frequency of 550 kHz, delivering a regulated output voltage of 5 V for load currents ranging from 1 A to 5 A, with a maximum output voltage ripple of 49.47 mV. The proposed buck converter settles to its regulated value within 3.32 ms with a peak efficiency of 86.18% at a load current of 1 A. The experimental results show that the proposed design responded quickly to changes in the load current, settling to its regulated value with an undershoot voltage of 168.97 mV and an overshoot voltage of 176.51 mV and a recovery time of 157.49 us and 278.69 us respectively.
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