Design and Analysis of DC Power Supply for Solid-State Power Amplifier

  • Rohit AgarwalEmail author
  • Rajesh Kumar
  • Gajendra Suthar
  • Hrushikesh Dalicha
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 608)


DC power supply required for 12 kW solid-state RF power amplifier (SSPA) is designed and analyzed. Rating (30–65 V, 320 A) and topology of power supply are derived to satisfy load requirement. The selected topology is twelve-pulse rectifier followed by interphase transformer and synchronous buck converter to get desired output voltage. Modular design is selected to minimize copper losses, to reduce the voltage drop and to optimize the resources available. Simulation is done using PSIM software to analyze the performance in entire operating range and validation of the design. Prototype model is developed with same voltage range (30–65 V) but lower current rating (10 A). Testing is done at different voltage and current levels to analyze steady state and dynamic performance. The simulation and experimental results are in good agreement.


Synchronous buck converter Power supply RF power amplifier Interphase transformer 



This paper is written in partial fulfillment of requirements for M.Sc. (Engineering) from Homi Bhabha National Institute (HBNI), Mumbai, Maharashtra, India.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Rohit Agarwal
    • 1
    • 2
    Email author
  • Rajesh Kumar
    • 2
    • 3
  • Gajendra Suthar
    • 1
  • Hrushikesh Dalicha
    • 1
  1. 1.ITER-India, Institute for Plasma ResearchGandhinagarIndia
  2. 2.HBNIMumbaiIndia
  3. 3.Institute for Plasma ResearchGandhinagarIndia

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