Efficient procedures to design and characterize passive harmonic filters in low power applications

This paper proposes efficient and comprehensive design procedures of single-tuned and C-type passive harmonic filters; besides, a new topology is suggested for low power applications. To further examine the design procedures of such filter topologies, various practical conditions are investigated. Moreover, both the network and the load obligations are taken into account. The suggested topologies and procedures provide a more effective harmonic suppression and loss reduction while they have simple structures and the algorithms are straightforward. Furthermore, an analytical comparison among different topologies contributes to characterization of their features. A typical non-linear load is considered and the proposed filter topologies are designed based on the introduced methods to suppress a benchmark of harmonics. Then the whole system is simulated with SIMULINK to verify the discussed procedures.