Engineer Design

Lawrence C. Plumhoff

**** ********** **** ********* **. 32940 321-***-**** (H); 321-794-

1044(C) *********@*****.***

Professional Summary

Over twenty years experience in the design, development and integration of

hardware and software in Industrial, Defense, and Commercial applications.

Certified Microchip Consultant since January 2000. Specialized in embedded

programming in both assembly and high level language using Intel,

Freescale/Motorola, Atmel, Analog Devices (Blackfin) and Microchip

processors. Design experience includes analog data acquisition circuitry

and A/D converters, and making measurements on a wide variety of data.

Received U.S. and Canadian patents and patent disclosure awards. Holds

Amateur and commercial radio licenses. Active Secret Clearance.

Professional Objective

To provide engineering expertise in all phases of product development for

progressive and dynamic organizations that are involved in developing and

fielding advanced technology solutions to their customers.

Education

B.S. Electrical Engineering Johns Hopkins University Baltimore, MD

Areas of Expertise

New Product Development System Design & Detail Design and

Architecture Integration

Technical Innovation Field Integration and Hardware/Firmware Design

Testing

R & D Manager DSP - Microcontrollers RFID

Training and Simulation Product Certification Toll Collection

Software Tools Experience

. PCB Layout: PADS, OrCAD, Protel, TraxMaker, Ultiboard

. Mechanical Design: AutoCAD 2000/2002, Solid Edge CAD

. Assemblers/Compilers: Motorola, Microchip, Atmel, Analog Devices, Intel

. Operating Systems: VxWorks, QNX, Linux, MS-DOS

. Other: Visual C++, Visual Basic, Quartus (Altera FPGA)

Certified Microchip Consultant since 2000

Worked with various clients on projects related to Microchip products,

assisting with development of software to allow them to complete their

projects. Microchip assembly and C Development, Analog and Digital

circuit design/troubleshooting, and RF design.

Patents

US Patent 6,356,973 "Memory device having a cyclically configured data

memory and having plural data portals for outputting/inputting data";

McLaughlin, Plumhoff, Bullen

US Patent 6,779,073 "Memory device having a systematic arrangement of

logical data locations and having plural data portals"; McLaughlin,

Plumhoff, Bullen

Patent Award: Westinghouse Electric Corp., "Frequency Agile Radar

Implementation"

Employment History

LiveTV Melbourne FL 10/2012- 2/2013 Sr. Design Electronic

Engineer

Responsible for hardware design/documentation of the Handheld Remote

Control Unit (HRCU) designed for the latest system implementation. Worked

with mechanical, system, and test engineers, technicians, contract

manufacturers and other service providers. Completed estimated 6 month

project in 3 + months working as contractor on assignment form Johnson

Service Group.

Quantum Technology Sciences Inc. Cocoa Beach, FL 12/2008-8/2012

Sr. Hardware Engineer

Designed amplifiers, power supplies, A/D converters, GPS devices, RF

interfaces (100-900 Mhz). Designed printed circuit boards for various

assemblies. Designed complete analog system for the newest line of

sensors. Designed/redesigned digital circuitry as needed for sensor

improvements. Worked as contractor on assignment from Apex Systems for

first year before becoming QTSI employee.

AAI Corp. Baltimore, MD 2/2008- 8/2008 Software Engineer III

Ported existing system to LYNXOS178 RTOS, modifying/improving as needed.

Designed, coded and tested simulators for UAV support equipment.

Programming in Visual C++ and Visual Basic.

XET Management LLC Miami FL/ Novato CA 2007 Senior

Engineer/Consultant

Hardware and software development of Grid-Tie Inverter family of products

to transform photovoltaic energy to 120 VAC/60 Hz. for stand-alone use as

well as power generation to sell back to utility companies. Microchip DSP

/ C Compiler. Analog & digital circuitry design/troubleshooting.

BAE Systems Corp. Falls Church, VA 2006-2007 Senior Electrical

Engineer

Provided Hardware & Software expertise to meet the demands of various

customers in the defense area. Developed embedded code in assembly

language on Freescale & Microchip Processors. Digital Circuitry design &

troubleshooting.

ACS Corp. Rockville,MD 2002-2004 Senior Systems Engineer

Developed requirements and evaluation methods for testing electronic

assemblies used in ETC (Electronic Toll Collection), including Light

Curtains, Doppler Radar (12 Ghz), Optical Profilers, Tag Readers (915

Mhz). Developed embedded system Lane Controller using Linux on PC104

controller. Designed RF Test Equipment to evaluate antenna performance in

the lanes and allow system monitoring and fault isolation.. Produced lane

signal flow simulations using Labview.

VIDAR Systems Inc. Herdon, VA 2002 Hardware/ Software Consultant

Hardware & software design involving Analog Devices Blackfin DSPs using

Visual DSP ++. Wrote programs in assembly language, C, and C++, and

assisted others in their writing/ debug.

VSSL Holdings Alexandria, VA 2001-2002 Senior Principal Electrical

Engineer

Analog, Digital, and RF design of the following units, including hardware

design, PC board layout, procurement, building, and testing:

. 64-channel Data Acquisition System with individually adjustable gain,

offset, and low pass switched capacitor filter. Used as a front end to

interface to magnetometers in an active degaussing project.

. 32-channel Audio power Amplifier @ 30 watts per channel. Used in the

active degaussing project.

. Stewart Platform Control/Interface - 6 channel unit designed to translate

analog position drive signal to Digital Step and Direction pulses

required by motors. Developed software in Atmel AVR assembly in addition

to hardware.

. Analog Controllers containing 3 Analog Devices ADSP21065 SHARC processors

with 24 analog inputs, and 12 outputs. Used to control two Stewart

Platforms in a shock mitigation study.

. 24Ghz Radar Doppler Transceiver used to measure velocity in the shock

mitigation study.

. Time Stamp Generator to synchronize events relating to shock measurements

made by several independent devices, each of which collected data

requiring correlation with data from other boxes. Developed embedded

software in Microchip assembly language in addition to hardware.

IMCI Technologies Ashburn, VA 1995-2001 Engineering Manager, R & D

Department

Designed custom hardware solutions for customers in the telecommunications

industry. Wrote assembly language programs to implement various functions

using Motorola, Microchip, and Intel processors. Several products used

VxWorks RTOS. Analog/Digital Design and design/layout of PC boards.

Managed all phases of projects from design to manufacturing of finished

goods, including troubleshooting, prototyping, production, and

certification.

Image Telecom Reston, VA 1994 Hardware Consultant

Designed custom hardware for "Video on Demand" systems. Work resulted in a

patent award in Europe, Asia and the U.S. (US Patents 6,536,973 and

6,779,073)

TV Answer/EON Corp. Reston, VA 1992-1995 Senior Software Engineer

Developed databases required for implementing the transmission of infrared

data patterns controlling various pieces of consumer electronic products.

Designed hardware for measuring and categorizing specific types of data.

Developed hardware for video overlay and genlocking with standard

television signals. Wrote assembly language programs for the Motorola

68030 processor.

Westinghouse Electric Corporation Linthicum, MD 1981-1991 Senior

Engineer

Researched, designed, and built the 80186-based CPU board for an Array

Signal Processor and integrated board with the ARSR-4 Radar System. Wrote

assembly language programs for testing and debugging a Motorola 88100-based

design. Developed software in 8086 assembly language to implement

"Frequency Agile" radar systems as well as prepared and taught a class on

my software design. Received patent disclosure award from WEC for the

"Frequency Agile" algorithms.

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