Authors:
P. Srinivasan, K. Arulvendhan, Amal Babu, S. Silvia Priscila, Dilli Kasi Rao Kotha
Addresses:
Department of Electrical and Electronics Engineering, Saveetha Engineering College, Chennai, Tamil Nadu, India. Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Ramapuram, Chennai, Tamil Nadu, India. Department of Computer Science, Bharath Institute of Higher Education and Research, Chennai, Tamil Nadu, India. Faculty of Engineering, Environment and Computing, Coventry University, Coventry, England, United Kingdom.
Abstract:
A non-isolated high-step-up DC-DC converter using the classic boost architecture is proposed in this study, functioning continuously in input-current mode. Low efficiency, complex control, and discontinuous current plague conventional voltage multiplier converters (VMCs). An interactive ZQR (Z-Quasi Resonant) network boosts voltage gain to improve stability. The high-side switch circuit design uses a single high-side switch to simplify driving circuitry and produce high gain using a single MOSFET and five diodes, reducing component count and system cost. A complete theoretical examination of ideal and non-ideal CCM operation was done. CCM operating conditions, voltage gain, and efficiency sensitivities are defined in the study, along with comparative charts showing performance across different parameters. In addition to the non-isolated design, this section covers an isolated bipolar DC-DC converter for energy storage integration in EV charging systems. This structure provides decoupled bipolar outputs for balanced, efficient, and stable EV battery charging, prolonging battery life and enhancing charging dependability. A PIC16F84A microcontroller-based hardware implementation with accurate switching pulses is described for power conversion and maximum performance. The recommended converters for next-generation EV charging technologies have high gain, ease of construction, and stable isolated operation, demonstrating their viability.
Keywords: EV Charging Systems; Component Count; Voltage Multiplier Converter (VMC); Bipolar Isolated Converter; Electric Vehicles; Hardware Implementation; Power Conversion.
Received: 04/11/2024, Revised: 23/12/2024, Accepted: 29/01/2025, Published: 09/12/2025
DOI: 10.64091/ATIEL.2025.000187
AVE Trends in Intelligent Energy Letters, 2025 Vol. 1 No. 2 , Pages: 71-86