International Research Journal of Education and Technology

This paper introduces a new type of DC-DC converter that combines multiple energy sources (like solar panels and batteries) into one system without using transformers. This design is smaller, simpler, and cheaper than traditional converters. It uses a special circuit that can both increase and decrease voltage to control the power flow between the sources. A specific control method (PWM) is used to keep the output voltage stable and the system efficient. The design was tested using computer simulations and a physical prototype. The results showed high efficiency (92% in simulation, 89% in hardware) and stable voltage even when the load changed. This converter is well-suited for use in renewable energy systems and electric vehicles because of its small size and good performance.