We provide Research and development services in power electronics, motor drives and control system domain. We have decades of experience in solving challenging technical problems. Leverage our expertise and get solution to your problems. For more details visit controltrix.com

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CONTROLTRIXWE HELP YOU TO MEET YOUR SPECIFICATIONS

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OUR SERVICESPRESENTED BY CONTROLTRIX

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R & D
Services &
consulting
Motor
Drives
Power
electronics
Control
systems
DSP &
Signal
Processing
Analytics
Simulation
Embedded
Firmware
WHAT WE DO
…OUR DOMAIN EXPERTISE SPANS WIDE AREAS

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Insight
We leverage our
experience to solve
your specific
problems
We are committed
to speedy execution
Speed
Accuracy
Accuracy is our
primary strength.
We strive for defect
free delivery
Every project is
different and needs
specific solution
Customized
solution
Competitive
prices
We keep our
overheads low so
you get best prices
Fanatical support
ensures post project
modification is
possible
Support
WHY US
…YOU CAN RELY ON US

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HW Consulting
Provide inputs to HW designers
to meet cost and performance
targets
FW design n dev.
Design and develop Firmware for
embedded systems and
Simulation
Perform simulations to predict
the performance
Analysis
Analyze system data
and simulation results
Control design
Design of control system for later
implementation using analog or
fixed or floating point DSC
Implementation
Implementation of control
algorithms to meet performance,
Technology review
Research and analysis of
technology and suitability for a
particular problem
Performance
Performance analysis and
insights into meeting /improving it
HOW WE CAN HELP
…OUR SERVICES

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Generic Motor control
DSP based Control of PMSM, ACIM, BLDC,
BDC, STEPPER , SR motors, sensored,
sensorless estimation algorithms
Chargers
Multi Chemistry smart
battery charger
Generic Power control
Inverters, power converters, DC-DC
converters, AC-DC power factor
single phase, 3 phase, SCR rectifiers
(upto 20 KVA), offline & grid connected
solar/ inverters
Stabilization
Gimbal control for UAV camera
requiring exacting stability reqs using
IMU
Servo control
PMSM servo motor control for
machine tool
Involving high inertia rise time, fall
time ,overshoot , trajectory
generation challenges
UPS
High Stiffness control of sync.
online UPS to suport non linear
and leading and lagging loads
(20 KVA)
Signal Processing
Extreme noise tolerance (<+/-1uV) multi
thermocouple based DAQ using DSP filtering.
Concept design
High accuracy ultrasonic non invasive flow
meter based on improving prior art
WHAT WE HAVE DONE
…OUR TRACK RECORD

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CASE STUDY
Dspic based 0.5 to 20 KVA scalable UPS firmware
Product firmware Features/Algorithmic Challenges
• 20 KVA pure sinewave online UPS
• 0.8 pf leading and lagging linear loads
• THD < 3% for linear load and 5% for non linear loads
• Instantaneous control / Fast response
• Synchronizing with grid at all times
• Fault handling ( fast and slow)
• Paralleling
• Scalable parametrized firmware
• Support highly non linear load
• Inherent protection against dc voltage application to transformer which causes saturation
• 50 Hz PT based isolated voltage feedback
( challenge to handle the control when PT based feeback is directly relied on)
• Firmware Spike and noise suppression in feedback for proper control
• 0.1 V resolution in the range

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PROJECT
PMSM servo motor control
Product firmware Features
/Algorithmic Challenges
•Machine tool industry application
•Position control
•Field weakening with 3X speed
•Optimal torque generation under field
weakening
•Tough specs on settling time with a
extremely high inertia load
•Overshoots and jerks are absolutely
prohibited for this requirement
•Smooth trajectory generation for very
small to large spans
•Various modes of operation
•High bandwidth controller with
variable (inertia) and dynamic load
with gravity playing an important role
as well.
Actual results : 3 Nm , 3000 rpm , 400 V DC PMSM motor + inertial load 5X with servo control
drive running only on fixed point DSP/math
Red : velocity , Blue : position for 30 degree movement span
Note the smooth position plot without jerks or overshoots. The small spikes on red plot are
measurement artefacts

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PROJECT
Single stage grid connected solar inverter
Product firmware Features /Algorithmic Challenges
• Boost + inverter topology
• H bridge based grid feed
• Dual MPPT for dissimilar panels
• 250 to 2KW scalable design
• 4 quadrant operation
• Current THD < 5% , PF ~ 0.99
• Automatic grid synchronization
• Power Transformerless design
• Isolation

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OUR TEAMPRESENTED BY CONTROLTRIX

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WHO WE ARE
…KNOW MORE ABOUT US
Anusheel Nahar
•MS univ wisconsin madison ,USA
•Holds 1 patent
•Expert in motor drives, control,
power electronics , embedded
•10+ years industry R&D experience
•Founder and CEO controltrix
Controltrix
Since 2011 providing R &D services
to industry in related areas
Shimolee
Product design NID, Ahmedabad
MS sustainability , Illinois Institute of
Technology, USA
8+ yrs experience in usability,
product design and sustainability
.
Contact
Controltrix
#775 9th main
HBR layout Bangalore 560043
W: www.controltrix.com
E: consulting@controltrix.com

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THANKS FOR
SEEINGPRESENTED BY CONTROLTRIX