IJBTT

DC-DC Converters Using PID Controller and Pulse Width Modulation Technique

	International Journal of Engineering Trends and Technology (IJETT)
	© 2014 by IJETT Journal
	Volume-7 Number-4
	Year of Publication : 2014
	Authors :  R.Sudha , Mr.P.M Dhanasekaran
	10.14445/22315381/IJETT-V7P267

R.Sudha , Mr.P.M Dhanasekaran, Article : DC-DC Converters Using PID Controller and Pulse Width Modulation Technique, International Journal of Engineering Trends and Technology(IJETT), 7(4),165-168, published by seventh sense research group

Abstract

This paper presents a boost converter along with a flyback converter. The Zero Voltage Switching (ZVS) technique is used to achieve soft switching. A bidirectional boost converter is connected with an output module as a Parallel Input Serial Output configuration. The flyback converter with Voltage Doubler Rectifier (VDR) acts as an output module. This connection makes a bidirectional boost converter an active clamp circuit which is connected to the output side in order to extend the step up ratio. A converter with active clamp technique is used to recycle the leakage energy, to eliminate voltage spike due to coupled inductors and also to provide a mechanism to achieve ZVS. To overcome the efficiency degradation during light load due to load dependent soft switching of the ZVS, a control method using Pulse Width Modulation (PWM) proportional to the load current is used.

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Keywords:
Zero Voltage Switching (ZVS), Voltage Doubler Rectifier (VDR), step up ratio, Pulse Width Modulation (PWM)