An Adaptable Non-Isolated Dual Input-Dual Output Converter forUse in Electric Vehicle

Abstract

The rapid growth of electric vehicles (EVs) has increased the demand for efficient, compact, and flexible power conversion systems capable of managing multiple energy sources and loads. This paper presents an adaptable non-isolated dual input–dual output (DIDO) DC–DC converter specifically designed for electric vehicle applications. The proposed converter enables the integration of two independent input sources, such as a battery pack and a supercapacitor or auxiliary energy source, while simultaneously supplying power to two different output loads, including the traction inverter and low-voltage auxiliary systems. The non-isolated topology reduces system complexity, size, and cost, making it suitable for space-constrained EV environments. Advanced control strategies are employed to ensure effective power sharing between the inputs, stable regulation of both outputs, and high efficiency over a wide operating range. The converter supports bidirectional power flow, allowing energy recovery during regenerative braking and improved energy utilization. Simulation and experimental results demonstrate that the proposed DIDO converter achieves high conversion efficiency, fast dynamic response, and reliable performance under varying load and input conditions. Owing to its adaptability, scalability, and efficient power management capability, the proposed converter is a promising solution for next-generation electric vehicle power electronic systems.