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Expert in Analog Electronic Circuitry, Semiconductor Products, Triac, Ground Fault Circuitry, Photometry
Available for your Consulting and Expert Witness Needs
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| Summary of Expertise: |
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Primary Expertise Areas:
(links show more experts in each area)
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Expertise Description: |
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analog circuit expert
analog circuit design expert
circuit design expert
electronic circuit expert
electronic circuit analysis expert
electronic circuit design expert
electronic circuit element expert
power semiconductor device expert |
In his eight years as Application Engineer for GE power semiconductor products, Keith created hundreds of analog circuits for the products of numerous companies, large and small. He also provided circuit analyses and problem
solutions for myriad thyristor (SCR and Triac) applications. He helped create the
Triac, and patented the triac circuit used in today's residential lamp dimmers.
Keith was the author of numerous professional papers and magazine articles, and wrote several chapters in GE's SCR MANUAL. He created many circuits and applications for light activated switches and SCRs, becoming adept in basic photometry. Keith was adjunct professor of Electronics at University of Hartford, teaching Fundamentals of Electronics for Junior year students. |
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arcing fault expert
circuit breaker expert
custom integrated circuit expert |
Keith created both discrete-component and custom-integrated-circuit
developments and designs for electronic trip units for GE's low voltage molded
case circuit breakers: “SelecTrip”; “VersaTrip”; and “MicroVersaTrip". He was
also instrumental in the design of the current transformers that provided both
signal and power for the trip units. He conducted research into very high speed
current interruption that limited short circuit fault current and eliminated arcing. |
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cadmium sulfide cell expert |
Keith developed the photoelectric control for GE's streetlight products using
cadmium sulfide photoconductors, replacing the earlier vacuum tube design.
He worked closely with CdS vendors in improving the life and reliability of the
photoconductors by eliminating the migration of electrode material through the
semiconductor. He wrote a "white paper" on photoelectric controls for AIEE,
which included photometric data he derived for daylight at twilight hours for the
full range of US latitudes. |
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ground fault protection expert
ground-fault interrupter expert
linear integrated circuit expert |
GE's first Ground Fault Circuit Interrupter circuit breaker, CB-3, electronics was developed by Keith, including a custom linear (analog) integrated circuit chip. He subsequently designed the electronics for the GE GFCI receptacle. He assisted Underwriters Laboratories in development of their Standards for GFCI products in the transient high voltage surge protection criteria and test equipment circuit. Keith also designed the differential current sensor transformers and the grounded neutral signal transformers for the GFCI circuits. |
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ground expert |
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| Show Secondary and Basic Areas of Expertise |
Localities:
Expert may consult nationally and internationally, and is also local to the following cities: Charlotte, North Carolina; Asheville, North Carolina; Gastonia, North Carolina; Knoxville, Tennessee; Johnson City, Tennessee; and Greenville, South Carolina.
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Degree |
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Subject |
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Institution |
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Honors |
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1948
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BEE
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Electrical Engineering
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N. C. State University
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With Honors
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1951
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none
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Creative Engineering
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General Electric Co.
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#1 in class
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| Years |
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Employer |
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Department |
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Title |
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Responsibilities |
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1972 to 1987
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General Electric Co.
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Distribution Equipment Dept.
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Consulting Engineer
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Created electronic circuit and product design for Ground Fault Circuit Interrupters, both circuit breaker and receptacle models. Designed circuits, including custom and semi-custom integrated circuits for GFCIs and for molded case circuit breaker electronic trip units, and designed the current transformers for these. Invented means for arcless and current limiting interruption of short-circuit fault currents.
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1969 to 1972
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General Electric Co.
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Integrated Circuit Products Dept.
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Manager, Automotive and Appliance Custom Design Engineering
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Hired and managed a group of five electronics engineers and one technician. Worked with customers and factory to develop application-specific custom integrated circuits. Company terminated entire department.
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1968 to 1969
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General Electric Co.
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Semiconductor Products Dept.
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Manager, Automotive & Appliance Application Engineering
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Hired and managed five electronics engineers assisting customers in the application of power semiconductors.
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1967 to 1968
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General Electric Co.
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Radio Receiver Dept.
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Manger, Transcription Products Engineering
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Initiated project and led 4 engineers in the development of a telephone answering machine, which was aborted after problems with Bell Telephone restrictions. Negotiated adaptation of Phillips cassette for GE tape recorder, setting the standard in the U.S. market.
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1962 to 1967
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General Electric Co.
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Semiconductor Products Dept.
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Application Engineer
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Developed circuits and assisted in specifications and testing for applications of GE power semiconductors. Participated in the creation of the "Triac" for control of AC power, and created the circuit using it in all present day residential lamp dimmers. Wrote and presented hundreds of industry and technical society technical papers, magazine articles, newsletter items, and co-authored four editions of GE's SCR MANUAL and HOBBY MANUAL.
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1955 to 1962
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General Electric Co.
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Outdoor Lighting Dept.
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Advance Development Engineer
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Researched, developed, and designed GE's first solid state photo-electric control for streetlights, and wrote AIEE tutorial paper on the subject. Created starting and ballasting controls for 2KW and 5KW xenon searchlights. Designed and built instrument for locating short circuits on printed circuit boards used in the manufacturing of electronic traffic signal controllers.
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1951 to 1955
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General Electric Co.
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Television Receiver Dept.
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Advanced Development Engineer
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Developed improved horizontal sweep circuitry. Developed and designed GE's first portable B/W television set. Initiated project to develop a TV remote control, aborted for financial reasons.
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Associations/Societies
Life Senior Member of IEEE
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Licenses/Certifications
P. E. license in state of New York
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Awards/Recognition
GE's corporate "Steinmetz Award" for technical achievement.
GE Research Lab's "Bueche Award" for leading electronics in the circuit protection industry.
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Publications and Patents
He has received 84 patents and has three more in the application stage. He was awarded 11 patents for GFCI circuits, a joint patent on the Triac, and the circuit for the triac lamp dimmer. He has published numerous technical papers and was co-author of GE's SCR Manual
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Designed electronic control and indications for a humidity control system for musical instruments.
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Designed and fabricated a two-hand safety control for a small punch press.
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Developed a calibration testing system for humidistats.
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As a member of the Intota consultant network,
Expert is a specialist who provides technical consulting to corporate, legal and government clients. Expert provides professional consulting as an Analog Electronic Circuitry Consultant, Semiconductor Products Consultant, Triac Consultant, Ground Fault Circuitry Consultant, Photometry Consultant. Expert may consult as an independent consultant or as a member of a consultancy, consulting company,
or consulting firm. Consultants service will be covered by a consulting contract.
Ask an expert initial screening questions and ask the experts services particulars, by simply submitting
an expert request.
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He served as expert and friend of the court in explaining to the jury the concepts of equipment ground fault protection in a case of personal injury wherein the plaintiff suffered extensive flash burns from short-circuit arcing in a 600 volt, three phase circuit breaker cabinet.
He was also an expert witness involving a GFCI improperly used in a marina, resulting in a fatality.
Intota experts can serve as expert witnesses or litigation consultants offering expert testimony, expert advice, litigation support,
forensic services, and related expert witness services. Expert can serve as an expert witness or litigation consultant in intellectual property (patent, trademark, trade secret, copyright),
product liability, and insurance matters. Expert may provide forensic expert witness testimony, litigation consulting services, forensic investigation,
and forensic testing if appropriate in litigation areas as an Analog Electronic Circuitry Expert Witness, Semiconductor Products Expert Witness, Triac Expert Witness, Ground Fault Circuitry Expert Witness, Photometry Expert Witness.
Intota provides attorneys and legal professionals the opportunity to ask an expert initial screening questions and
ask the experts services particulars by submitting an expert request.
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Expert serves as a resource to
Intota Market Research Services
for customized marketing research in industries or areas related to
Analog Electronic Circuitry, Semiconductor Products, Triac, Ground Fault Circuitry, Photometry.
Experts are an invaluable source of overall industry insight as well as insight into specific companies and firms for
custom business to business (b2b) and industrial market research. Intota uses analyst and
consultant resources from Guideline whose Research Directors manage the research and analysis of the qualitative
and quantitative data as well as report writing for the custom studies. The methods and tools
used by Intota market research combine the insights of technical experts and industry insiders with secondary
research to provide the custom b2b and industrial market research you need.
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| Additional Skills and Services: |
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Training/Seminars
He created and taught a short overview of Creative Engineering to engineers in his department. He created, scripted, and presented many technical seminars and lectures on the application of power semiconductors all across the US and in Europe. As Adjunct Professor of Electronics at the University of Hartford (CT), he taught junior year Fundamentals of Electronics, and created a senior year elective course on Electronic Devices and Applications.
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Expertise
