Input- Series and Output- Parallel Connection Modular DC-DC Converters with Interleaved Constant Duty Cycle Control Strategy

Input-series and output-parallel (ISOP) connection modular DC-DC converters with interleaved constant duty cycle control strategy are presented in this paper. The system costs decrease due to the less current and voltage sensors, and the volumes of the input and output filters does due to the interleaving technique. Also, the system design work is simplified. The proposed scheme is analyzed both in the identical modules and practical modules. The advantages of the proposed scheme are verified by a prototype system consisting of two full bridge converters with slight mismatch parameters in each module.