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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:
806-778-8407 Central Time Zone
email:
Dave Johnson |
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EXPERIENCE: |
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 component 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 precision 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
1996September 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 1980June
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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