Experimental verification on reduction of EMI in ZVS push-pull DC to DC converter system

Vol. 3 No. 1

Year: 2012

Issue: Sep-Nov

Title: Experimental verification on reduction of EMI in ZVS push-pull DC to DC converter system
 

Author Name: S.Devikala, P. Nirmalkumar

Synopsis:

This paper presents the experimental verification of ZVS push-pull converter. The emphasis of this topology is to reduce the electromagnetic interference, conduction losses, and complexity of the circuit. EMI caused by power converters can disturb the normal operation of the converter and other adjacent systems. The main aim of the research work is reduction of EMI in switching power converters. Lessening techniques have been explored to reduce EMI noise effectively. The push-pull converter is used as DC-DC converter suitable for low and medium power application. High efficiency, less switching loss and high power density are the incentives of this application. The switching frequency is increased to achieve high power density which will minimize the complexity of the circuit as size of the components reduced. Thus switching loss has to be minimized to achieve high frequency operation; this can be achieved by ZVS resonant techniques. This reduces switching losses as well as EMI.The push pull DC to DC converter with EMI filter is constructed and tested. The experimental results are compared with simulation results.