Ranajay Mallik

Experience

• 

  Various

  Nov 1997 - May 2003

  Engineer

  CESC/Simoco/Aryaetc

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  Sonodyne Electronics Co Pvt Ltd

  May 2003 - Jul 2007

  Manager, R&D

  Design and development of high end audio systems for domestic, installed and radio broadcast applications. Class D power amplifiers, power supplies, studio monitors and subwoofers.

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  STMicroelectronics

  Jul 2007 - Apr 2017

  Created close to fifty reference system designs till date, for the company, involving a wide variety of products from a rich semiconductor portfolio. New topologies in the field of both high and low power management is a specialty. Soft switching topologies like QR, PSFB, AHB, LLC, LCC, and also multi channel interleaved topologies.1) Advanced LED lighting drivers and as connected IoT subsystem/component.2) Energy harvesting and MPPT charge controllers3) Resonant push pull, quasi-resonant, half bridge and full bridge topologies for power conversion and induction heating. 4) HB LLC power converters and LED drivers. 5) Smart Grid controllers and distributed/centralized control street lighting systems, 6) Stand alone, solar and grid tied inverters.7) Soft switching and Interleaved topologies8) Digital power conversion9) State machine based control for high performance power supplies10) High power density converters for Hard Disk Drives Show less

  • Group Manager

    Apr 2014 - Apr 2017

  • Senior Manager, Power and Lighting

    Jun 2011 - Apr 2014

  • Project Manager

    Jan 2008 - Jun 2011

  • Senior Design Engineer

    Jul 2007 - Feb 2008
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  パナソニック

  Apr 2017 - Mar 2019

  Head New Product Development

  Deeply involved in heading the design and development of futuristic compact BTS power supply units, cloud connected smart AC and DC charging stations and chargers for the electric mobility domain. Also exploring new AC-DC and DC-DC power conversion topologies for achieving even higher power densities for high duty cycle commercial applications in hostile environments. Other area of focus, is merging renewables with distributed energy storage.

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  STMicroelectronics

  Mar 2019 - now

  Power Conversion