Electrical Design

GREGORY J. PASTALAN

*********@****.**.***

Cell: 607-***-****

SNAKE CREEK LASERS, LLC Hallstead, PA September 2010 – Present

• Designed the Electrical Layout and Embedded C Control Code for a Prototype Handheld Three

Wavelength Medical Laser. PIC24H series Microcontroller supervised a Constant Current Source

for the DPSS Laser, and the PI Temperature Control Loop that was accurate to within +/- 0.3 C of

setpoint. The working prototype was designed, assembled, and integrated in 6 weeks.

• Designed a Prototype Laser Rangefinder / Target Designator System which consisted of a

System Control Board, Detector Board, Laser Diode Driver Boards, and an OLED Display.

MPLAB IDE provided the environment for designing the Embedded C Control Code and during

integration, stepping through the code by operating the System Controller in Debug mode.

Demonstrated the ability to design hardware and firmware within project time and cost limitations.

These constraints required the design to utilize a 4 to1 Bus Mux with the System Controller UART

for peripheral supervisory communications to the legacy Laser Diode Driver Boards.

Standard signal conditioning design was used to convert the differential outputs (LVPECL &

LVDS) of the optical receivers into single ended TTL inputs for the Time of Flight Device.

The system controller firmware was written to determine the ranging data from output

of the Time of Flight device and output the data into the appropriate format for a color display.

Testing and debugging revealed greater T0 detector sensitivity was necessary. A second

Detector Board to interface for the T0 detector was adapted into to the System Control Board.

The Multilayer PCBs were designed with OrCAD Schematic Capture / PCB Layout, and

fabricated through close technical correspondence with the board manufacturer.

• Support Production of DPSS Laser Devices by troubleshooting / correcting electronics issues.

TOMPKINS CORTLAND COMMUNITY COLLEGE Dryden, NY

• Adjunct Instructor for Mathematics and Physics. Spring 2010 - Present

BAE SYSTEMS Johnson City, NY January 2004 – October 2009

• Designed and Integrated Automated Test Stands for Helicopter Engine Controllers, and Hybrid

Electric Drive Devices. Hardware experience includes Digital Oscilloscopes, Logic Analyzers,

1394 Analyzers, Kvaser Leaflite, VME / VXI, PCI, and GPIB based Data Acquisition hardware.

Software experience includes NI MAX, CANKing, VxWorks, LabView, and MS Office.

• Designed and Integrated Module Testers consisting of Test Point Grids, Passive Loads, Relays,

and circuits simulating Strain Gauges, Thermistors, RTDs, Solenoids, and VDTs.

• Successfully completed: Basic Training for Mentor Graphics for PCB Design.

High-Speed Digital Design and Hyperlynx Introduction Training for PCB Design.

High Voltage/High Power Safety Training.

PRIOR EXPERIENCE

• Assembled / Integrated System Level Test Stands for the Joint Strike Fighter VMC. [2002-2003]

• Designed and Integrated Test Stands for Production Testing of Laser Diodes. [1997-2002]

• Supervised / Conducted Production Testing and Characterization of Semiconductor Lasers.

Integrated Laser Diode Current & Temperature Controllers, Optical Power Meters, Integrating

Spheres, and OSAs through LabView as a complete data acquisition system. [1996 -1997]

• Upgraded an existing Laser Diode Current Controller as an Electrical Engineering Senior

Project. Conducted the Final Assembly and Testing of Laser Diode Current and Temperature

Controllers. [1995-1996]

• Graduate Student, Physics Department, Montana State University. [1989 -1993]

B.S. - Physics, State University of New York at Binghamton

B.S. - Electrical Engineering, Montana State University; M.S. – Physics, Montana State University

Contact this candidate