High Efficiency Converter for Satellite Power Amplifier Stage

Alemi Rostami, Mehdi; Aghaei, Morteza

Document Type : Research Paper

Authors

¹ Aerospace Research Institute of Science, Research and Technology, Tehran, IRAN

² Department of Electrical and Electronic Engineering, Sharif University of Technology, Tehran, Iran

Abstract

In this paper, a high efficiency DC-DC converter for variable input voltage and high output voltage applications is presented. This converter is specially appropriate for driving travelling wave tube amplifier with a variable input source (i.e. solar panels). The proposed converter consists of a boost converter to remove the variations of its input voltage and regulate its output voltage. Afterwards, a full bridge inverter controls the phase angle between the output inverter voltage and the current. Keeping the value of this angle at zero, the switching losses are reduced. A series-parallel resonant circuit uses the parasitic elements of the transformer as its elements and makes switches work in soft switching conditions. This reduces the converter power losses and increases the efficiency. Simulation results show the behavior of the proposed converter.

Keywords

20.1001.1.20084560.1397.11.1.4.0

References

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Space Science and Technology

High Efficiency Converter for Satellite Power Amplifier Stage

References

References

Volume 11, Issue 1 - Serial Number 34
June 2018
Pages 41-48

High Efficiency Converter for Satellite Power Amplifier Stage

References

References

Volume 11, Issue 1 - Serial Number 34June 2018Pages 41-48

Volume 11, Issue 1 - Serial Number 34
June 2018
Pages 41-48