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Resume of David A. Johnson, P.E.
David A. Johnson, PE -
DiscoverCircuits.com
6601 County Road 6410 Lubbock, TX 79416-9717
Phone: 806-368-7747
(as of June 2011) Central Time Zone
email: Dave Johnson |
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| EXPERIENCE:
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June, 1982 - Present (* denotes
full-time employment during this time period)
DAVID JOHNSON & ASSOCIATES, Consulting Engineer
Led numerous client/consultant meetings to discuss specific client needs. Generated
detailed project descriptions, proposals and engineering cost estimates. Evaluated client
company circuit designs, conducted feasibility studies and built prototype systems. Conducted
research on new products. Designed and constructed special test instruments. Designed printed
circuit boards, generated complete product documentation packages and analyzed product field
failures. Hired and managed numerous engineers, programmers, PCB designers and technicians as
both employees and subcontractors. Wrote detailed descriptions for several patent applications.
Completed over 600 projects for more than 100 different companies. |
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* September, 2000 to
February, 2001
SILVERLINE POWER CONVERSION, Senior Project Engineer
Conducted sustaining engineering for a 100 watt uninterruptible computer power supply (UPS).
Designed several product test fixtures and compoenet testers. Designed a battery
tester that discharged a battery with either a constant current or a constant power load.
Designed a 100 watt DC to AC inverter for supplying continuous AC power to a computer system.
Designed a percision AC wattmeter. Laid off when Boulder office closed. |
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* November, 1999 to August, 2000
CROSSLINK INC, Senior Engineering Project Manager
Managed several radio frequency identification (RFID) projects. RFID tags and tag readers
operated at 2.45GHz and 915MHz. Battery powered tags operated for up to 5 years with read ranges
in excess or 500 feet. 2.45GHz system operated using low a power long-range "backscatter"
technique. Also designed 915MHz RF linked sensors. |
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* December 1996 - September 1998
HID CORP, Senior Project Engineer
Conducted research on new passive radio frequency identification devices (RFID) operating at
125KHz and 13.56MHz. Also experimented with battery powered RFID tags operating at 315MHz. One
prototype system was designed to provide continuous operation for 5 years. Chief designer of a
new RFID card reader that cost about one half the reader it replaced. Developed a method to
detect nearby RFID cards using super low power techniques for a battery powered RFID card reader
used in security door locks (2 patents pending). Supervised several engineers, technicians and
programmers. |
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October 1980 - June 1982
MARTIN MARIETTA AEROSPACE, Senior Staff Engineer
Designed power generation and distribution systems using large concentrator type suntracking
photovoltaic arrays. Proposed ways to increase efficiency and reduce cost of the systems.
Conducted research on very high speed local area networks using optical fibers. Wrote a detailed
report that advised military and aerospace centers the use of optical fiber networks. Devised a
new fiber optic network coupler with 64 nodes running at 220Mb/sec. |
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November 1979 - October 1980
CUSTOM ENGINEERING, Electronics Engineer
Designed special electronic instruments, designed and developed new products. Duties included
outlining work scope, estimating manufacturing costs, budgeting, scheduling and supervising
product assembly. Coordinated the design and construction of prototypes, wrote detailed assembly
procedures and generated necessary support documents. Supervised one engineer, three
technicians, several assembly workers and one draftsman. |
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