Engineer Electrical

ANNU GUPTA

*** ****** ***

303-***-**** Superior, Colorado 80027 **********@*****.***

SUMMARY

Electrical Control System Engineer with over 20 years of significant and

diverse experience in wind power, storage disk-drive, aerospace,

pharmaceutical, and embroidery machine industries utilizing skills for high-

speed precision positioning of electromechanical system and providing

solutions to complex technical control problems. A highly skilled and self-

motivated individual with demonstrated expertise in:

Servo controller design, servo demodulation, servo mechanical

modeling and simulation, and sensor circuits.

Electromechanical control system integration: servo actuator

and sensor requirements and specifications

Embedded software development in Assembler and C for

implementing control system, Matlab programming and

simulation

Hardware /software integration and debug skills using

emulators

Product design from conceptual to manufacturing phase.

Analog/digital and power electronic design

OPTO 22 PLC software, and Auto-cade

PROFESSIONAL EXPERIENCE

ProtoFlexCorp, Centennial, Colorado

Present, Jan 2013

Software Engineer

Developed OPTO 22 software for vapor deposition system,

Vestas LLC, Louisville, Colorado

Sept 2012, 2010

Electrical Engineer

The tasks included sensor modeling using Matlab/Simulink, sensor

qualification, and solving complex sensor calibration issues. This job

required interfacing globally with vendors and internal customers.

SEAGATE TECHNOLOGIES, Longmont, Colorado 1999-2009

Servo Staff Engineer

Performed servo drive integration including: electromechanical,

demodulation electronics, analog design, feedback control, seek tuning.

Developed real time software for spindle and head positioning system in

assembler and C. Debugged hardware and software issues with emulators and

scopes.

. Identified and fixed deeply rooted software bugs and servo issues in

code which improved code robustness, improved product yields by 2 to

3% and increased profit margins.

. Developed test processes to identify unstable-resonance mode of drives

thus preventing marginal drives form reaching customers.

. Developed advanced power saving feature for disk drives in C resulting

in 40% power saving.

. Developed new stabilization algorithms that improved data throughput

in drives.

. Awarded two US patents for stabilization algorithms for disc drives.

o Patent#6,917,483 for "Non-Consecutive Transitional Mechanism for

Seek Operation"

o Patent#6,906,886 for "Peak to Peak Detect Method to Protect

Seek/Settle induced Encroachment.

. Received Key Contribution Bonus three times over last 10 years for

participation in the development of several products.

ANNU GUPTA Page Two

MELCO EMBROIDERY SYSTEMS, Denver, Colorado 1997-2000

Electrical Control Engineer

. Developed project plan and justification for building in-house motion

controller chip.

. Implemented real-time DSP software including PID controller, smooth

motion control trajectory generator and digital filters in C and

assembler. This saved the company $80 per system. Melco was previously

spending $100 per motion controller chip.

DENVER INSTRUMENTS (Pharmaceutical Instruments), Denver, Colorado 1994-

1997

Electrical Engineer

. Designed analog force balancing Loop

. PID controller loop for high-precision weighing scales reducing

response times by 25 %.

. Led design team to develop motion controller DSP for weighing scales

BALL AEROSPACE, Boulder, Colorado 1986-1994

Senior Electrical Engineer

Designed analog servo control loops for 2-axis mirrors for positioning

laser beams. Managed the electronic lab and provided proposal writing

support for new business development. Developed system level to sub-

component specifications for precision pointing system for space based

telescopes.

. Designed analog and power amplifiers for controlling 2-axis

steering mirrors which provided 2 to 3 KHz bandwidth servo and

sub-microradian position accuracy.

. Performed modeling and performance prediction of

electromechanical system which provided a cost effective

alternative to hardware prototyping.

. Performed hardware integration of the 2-axis mirrors to maximize

servo performance using dynamic signal analyzers.

.

EDUCATION

MS, Control Systems, University of Colorado, Boulder, Colorado

BS, Control System, University of Sussex, UK

Publications

Attitude Determination for High-accuracy Submicroradian Jitter Pointing on

Space-based Platforms in Proc. SPIE/Volume 1303/Controls for Optical

Systems

Inertially Referenced Pointing for Body-Fixed Payloads in: Advances in

optical structure systems; Proceedings of the Meeting, Orlando, FL, Apr. 16-

19, 1990 (A91-36651 15-74). Bellingham, WA, Society of Photo-Optical

Instrumentation Engineers, 1990, p. 324-334.

Microradian Level Inertial Line-of-sight (ILOS) stabilization with wide-

angle search (WAS) capability in

(ISSN 0065-3438),

p. 451

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