milton keynes, United Kingdom
I have gained exposure to a R&D environment of international quality
and have learned to design Power converter and control of
exacting standards. I have worked on UPF rectifier, Inverter, motor drive and
Battery management of UPS. Good working knowledge of DSP based digital control of Power electronics converter
Good experience in writing assembly and C code in DSP. Expertise in
Texas instrument 2x series DSP, Altera FPGA.
I have expertise in switched mode power supply design, PFC, layout
guidelines, prototype building, assembly guidelines and EMC testing.
I have also worked on Brushless DC Motor, Finite Element analysis and
sensor less controller for axial flux machine electric hybrid vehicle.
Have gained experience in high voltage resonant X-Ray generator
during my work in General Electric Healthcare.
In Philips research Asia I worked on low cost lighting (HBLED)
solution for rural area, quick charging of LFP batteries, MPPT based
solar charging station and Non-intrusive load monitoring.
In Siemens Variable speed distributed drives hardware design of low capacitance inverter, SMPS, Thermal & Magnetic design.
I have worked with GKN hybrid power (Previously known as Williams Hybrid power) in flywheel energy storage systems. Power electronics for high power converter, design and control of high-speed permanent magnet machine.
Currently I am working as power electronics consultant with Automotive clients for design and development of high density DCDC converter . Successfully designed soft switched resonant converter for high voltage to low voltage high current conversion. Successfully tested and validated the design now its n pre-production stage.
If you need any power electronics design and development, Schematics and PCB design , embeddes software please fell free to contact me.
Links for more
Ongoing relation / part-time
Full time contractor
Railways and Military application. 540 kW bi-directional inverter design, thermal modeling,
simulation and controller design of high-speed synchronous machine in Matlab and Simulink. Hardware and Controller design for multiple converters in parallel operation.
Design of Power electronics and dSpace Micro auto box interface.
EMI & EMC filter design, harness shielding grounding of power converter to reduce noise.
Thermal management of liquid cooled inverter.
Electrical safety, trip management in CPLD for protection of converter.
FEM analysis and electromagnetic design of high-speed flywheel 140kW magnetic
composite permanent magnet machine. Rotor and stator design using motor-CAD.
calculation and thermal model to estimate junction temperature. Induction Motor control
simulation in matlab/simulink.
Three phase offline ZVS fly back (high voltage DC-DC) switched mode power supply design
50W (24V/2A) input voltage range (400-900VDC) output voltage of 24V.
volume product for emergency lighting, Ni-MH, Li battery charger
Schematics, Layout PCB design, testing of power management of LED driver and charger.
Stability analysis and controller design.
Algorithm development of adaptive bleeder for retrofit LED bulb. DALI-PLC
communication interface for controls.
PIC microcontroller programming for controller implementation.
EMI, EMC testing.
Power and Energy management for rural electrification. Off grid lighting solution using
renewable energy sources.
Portable light supercapacitor based quick charging station.
Solar battery charger (MPPT) Lithium battery charging station.
Intelligent power backup solution. Non-Intrusive Load Monitoring (NILM) and home
Design and Development of X-Ray generator and Manufacturing support for High Voltage
(120kV, 5mA) Resonant Power Supply. Root cause analysis of failures. Power supply
thermal, humidity, vibration, HV insulation, EMI & EMC test.
Design and development Unity Power Factor three phase Rectifier and Inverter. Modeling
simulation and design of controller implementation in TI DSP.
Code composer studio programming of controller in C & C++.
Thermal and magnetic design of inverter and rectifier.
Neutral DC balance. Bi directional battery charger of UPS. Switching loss optimization for
IGBT's. 30 kW DC- DC converter for UPS battery charger.
Project 1X1 banking project:
AC-DC converter front end unity power factor rectifier. (5kW)
Energy Management Unit:
SMPS Battery Charger (500W) PFC DC-DC converter.
This project involves design and development of hybrid magnetic bearing and Active
magnetic bearing for high-speed application. FEM simulation and design of magnetic
M.Tech Thesis Work:
Sensor-less control of high-speed axial flux permanent magnet machine with integrated
flywheel for Electric Hybrid Vehicle: Design and development of High-speed axial flux
permanent magnet machine with one rotor two-stator topology. Sensor-less controller using
TI DSP. Flywheel design FEM analysis and design of axial flux machine using Flux and Maxwell.
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