Engineer Electrical
Resume:
DOMINIC BARBUTO
Sudbury, Ma *****
*********@*******.***
OBJECTIVE:
An engineering position where my analytical and problem-solving skills
will assist the company in reaching its' goals and objectives.
SUMMARY OF QUALIFICATIONS:
. Twenty years of digital, analog and power electronics circuit design
experience, designing process control instrumentation, industrial
controllers and capital equipment.
. Design Tools: MathCad; LT Spice, ModelSim_10, and WEBENCH simulation
tools; MPLAB IDE; 'C'; Orcad and Viewlogic (Schematics); Quartus2 and
Simplicity (Verilog), AHDL & GDF (FPGA design); PadsViewer.
. Designed circuits to pass EMI tests; Intrinsic Safety (Baseefa,
ISSEP); CE (European Certification); CSA; UL; IP67 (water tight).
. Worked on Laboratory Equipment Products (Used in Medical Industry).
. Mixed signal designs; including, 10 bit 20MHz ADC, 12 bit DAC, 4-20mA
loop drivers. Designed using RS232, RS485, UART, Ethernet and HART.
. Worked with various sensors--infrared emitters/detectors, Hall Effect
Sensors, strain gauges, thermocouples, and piezoelectric transducers.
. Specified 16-bit RISC processor (Motorola MC2001 MCORE); Micro-
controllers including 8031. Worked with PIC18 Micro from MicroChip.
. Designed Micro-controller Based Products; utilizing FPGAs, FLASH,
SRAM, UARTs, EEPROM, Display Controllers, and other GPIO devices.
. Designed various modules in Verilog HDL: Clock Generator, transducer
barker code packet, transmit/receive, RAM and Correlation Modules.
. Designed and implemented new products from design concept to
prototype, pre-production to design verification testing and
to mfg.
. Project Engineer and implementation team leader.
PROFESSIONAL EXPERIENCE:
VESTAS Marlborough, Mass
Sr. Electronics Engineer 01/12-12/12
. Designed high voltage insulation leak detector circuit using current
sensing transformer to measure leakage current and op amp for voltage
measurement. Used two 12 bit ADC controlled by an FPGA. Thoroughly
simulated circuit design using LT Spice.
. Designed insulation leak detector's FPGA circuits using Alters's
Quartus2 design tool (Verilog) and ModelSim. Designed FPGA RAM and
other circuits to read a number of ADC conversions from current and
voltage signals, performed signal averaging and output to Micro.
. Worked on 8MW Wind Turbine Generator's (WTG) speed sensor design. This
includes using PNP Hall Effect Sensors, COTS counter and I/O interface
module. Did computations to ensure design scheme meets generator's max
over speed specification.
. Generated several design documents; including, WTG shielding and
grounding scheme; Wire and Cabling Design Requirement Specifications;
participated in design review to confirm and release documentation.
IRADION LASER N. Smithfield RI
Sr. Electrical Engineer 04/08-9/11
. Used MPLAB IDE programming environment with 'C' programming to modify
existing software on a PIC18 micro controller. Added many new
functions for laser interfacing, control and monitoring. For example:
over temperature sensing; input voltage monitor for protection; key
switch interlock; laser on time counter; Serial, power, and model
number input in Hex.
. Integrated Control Card, RFPA, Coupler, Cabling and laser together.
. Created multiple packet strings in software for input and output data
transmission VIA RS232 communication port.
. Designed/Redesigned RF Power Amplifiers to run CO2 Lasers. These
Amplifiers were designed to run at 40.68MHz; 400W and 800W Output
Power; up to 85% efficiency; CW and Pulse Mode operation.
. Designed DC to DC buck converter and software control for auto-fan.
. Designed 26dB Micro-Strip Power Coupler; transmission line
transformers; PI, L, and T type matching circuits. Optimized impedance
match between RFPA to Plasma Load using a double-L circuit. Calculated
optimum cable lengths for lighting lasers and to perform at optimal
frequency.
. Used 'C'; MPLAB IDE; MathCad; Linear Tech, and RF99sim simulation
tools.
VARIAN SEMICONDUCTOR Gloucester, MA
Sr. Electrical Engineer 06/07-03/08
. Worked on Ion Implant Systems (Plasma Gas Doping), solving problems
associated with vacuum chamber matching and pressure sensor out drift.
. Modified Plasma Gas Wafer Implant Tool by rewiring vacuum sensor
controller and A/D IO Module to improve signal quality.
. Solved recalibration issue of pressure controller by rewiring input;
this changed input gain to reflect what was shipped from MKS. This
eliminated need to do a second calibration of controller.
. Modified safety circuits (Emergency Machine Off Switch); this included
cabling from Main Power Distribution and to Remote Distribution Box,
allowing safe control and shutdown of 240V 3 phase power to Machine.
. Used PowerPoint to outline Product Definition and to list all
associated tasks and projected completion dates; cost estimates;
safety issues; mfg considerations. ECOs followed Design review and
Presentation.
THERMO ELECTRON Milford, MA
Sr. Electrical Engineer 08/2005-02/2007
. Used OrCad schematic capture to create Micro-Controller Adapter Board
48 pin DIP to 52 pin PLCC.
. Verified 24VDC 3 phase motor logic/driver circuits. Created timing
diagrams to detail motor Hall Sensor outputs to MC33035 logic decoder
and address/driver input to IRAMS10UP60B Hex Bridge output motor
driver.
. Worked on a variety of Laboratory Equipment Products (Used in the
Medical Industry). This includes: PX2 Thermocyler; 2-6KV
Electrophoresis Power Supplies (used for DNA sequencing); Vacuum
Concentrators/Spin Cycle/Thermocycler Products (Uses include test tube
sample separation).
. Worked with software engineer to support hardware requirements; this
included DSP control of chopper circuit (Heater and Lamp Power
Control).
. Designed a J&K type Thermocouple amplifier and signal conditioning
circuit using AD595; output resolution within +/- 2 degree 'C';
MIT LINCOLN LABS Lexington, MA
Sr. Analog Engineer 2004-2005
. Designed a quad high-speed amplifier board to interface detectors to
National Instrument's current detector board. Used ExpressPCB to
quickly design artwork for four boards.
. Redesigned/Modified a 40A Laser Diode Driver Power Supply to make it
more robust and to interface with different loads.
. Designed 40A Laser Diode Driver PS Circuits: Boost Converter; high-
speed gate buffer circuit; failsafe circuits to protect against high
currents.
. Designed linear control circuit to provide a simmer drive current to
Laser Diode Load.
. Designed, simulated, and prototyped 120VAC to 24VDC 300W power supply
using step down transformer and Buck Converter. Approx. 85%
efficiency.
. Used an infrared quad detector for energy and alignment measurements.
GE PANAMETRICS Walthan, MA
Hardware Design Project Engineer 1996-2004
. Project leader and Hardware Design Engineer for Low Cost Low Power
Ultra-Sonic Flow Meter; Oxygen Probe Sensor and Moisture analyzer.
. Designed a 4-20mA loop controlled Flow Meter. This was done using very
low power Micro, ADC (20M samples/s), 12 bit DAC, Altera FPGA; 88%
eff. Switching supplies (boost and buck); low power piezoelectric
transducers, UART and other IO devices.
. Used RS485 communications circuits to interface Flow Meter to other
Flow Meters (Slave Mode) and to PC (Master Mode). Designed CPLD for
interrupt control for communication between 8051 to 68332
microprocessors. CPLD also included 8031 address decoder and logic
interface between microprocessor and EEPROM. Used logic and AHDL for
Altera 7128 CPLD.
. Utilized Modem Chip to design HART communication circuit. Circuit used
1200 and 2200 Hz frequency rate each representing 1 or 0 when
demodulated from 4-20mA Loop power line.
. Developed several FPGA circuit designs: used Altera's MaxPlus2 and
used
GDF design to create Industrial Gas Meter circuit; used AHDL (Altera
Hardware Descriptive Language); used Verilog for Low Cost Meter
Design.
. Used various software packages; including, MicroSim, Viewlogic,
MaxPlus2, Microsoft Project, PadsViewer, and others.
EDUCATION:
Northeastern University - Boston MA
B.S. Electrical Engineering Technology
Graduated 1998
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