A New High Gain DC-DC Boost Converter with Continuous Input and Output Currents

The fundamental DC-DC boost converter has the drawbacks of low voltage gain ratio followed by discontinuous output current. May the reverse recovery problem rises as a disaster for the output diode along with harming the power switch. Also the stress of voltage is significantly high in respect with the output voltage. Therefore, a new topology of high gain non-isolated DC-DC boost converter is proposed in this paper. In this converter a high voltage gain is achieved with continuous power in the input and the output. The voltage stresses across the semiconductors are all less than that of fundamental boost converter in respect with the output voltage. Only a single power switch is controlled by PWM which leads to simplicity and cost reduction. The proposed converter is advisable for PV panels because of its continuous input current. Furthermore, as the output current is also continuous this makes it a suitable choice for fuel cells. Simulations are provided in MATLAB Simulink to verify the extracted theoretical equations from the proposed converter.