Expert Details

Expert in Analog Circuits and Power Electronics

Expert ID: 107981 Arizona, USA

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ACTIVE FILTERS; R-C ACTIVE FILTERS; SIGNAL PROCESSING. Expert has a strong background in analog active filter synthesis for all realizable functions -- that is, any number of left or right half plane zeros and left half plane poles to frequencies as high as 5MHz, using both positive and negative feedback, from low Q structures to complex, high Q KHN filters. He is the author of many handbook sections on passive and active filters, signal processing, and power supplies.

AC TO DC CONVERSION AND CONVERTORS. Expert's background includes all types of rectifiers and filters, including high frequency, low loss conversion, as well as multi-phase conversion.

AMPLIFICATION; DC AMPLIFIERS; DIFFERENTIAL AMPLIFIERS. Expert has experience with solid state DC and AC amplifiers up to 100MHz, including selective amplifiers of low pass, high pass, or band pass type.

ANALOG CIRCUITS; ANALOG CIRCUIT DESIGN. This includes linear and non-linear amplifiers, multipliers, flip-flops, time delay, signal generators, and active RC filters, as well as passive filters of all types and characteristics. Expert has had experience with all of these.

DC TO DC CONVERSION. Expert has worked with moderate to high frequency conversion (from a few KHz to MHz) of the buck, boost, flyback, forward, push pull, and resonant types, including design, analysis, and compensation for specific characteristics of bandwidth, regulation, and efficiency.

ELECTRONIC ENGINEERING AND ELECTRONICS. Expert has been involved in the design of vacuum tube and solid state electronics circuits.

FEEDBACK. Expert understands negative and positive feedback systems for control, regulation, signal generation, and filtering functions. His design specifications can be of the steady state characteristics, or transient response of the system.

SWITCHED MODE POWER SUPPLY; Expert has knowledge of switched mode power supplies, AC to DC, DC to DC, and DC TO AC switched mode supplies of the buck or boost type at moderate to high frequency, (kHz to MHz) using flyback, forward or push-pull and resonant conversion methods for regulation, stability or transient response, and efficiency of conversion.

DIRECT-CURRENT TO ALTERNATING-CURRENT CONVERTER. Expert is experienced with low-voltage DC to AC converters of 25V to 150V RMS, typically at frequencies of 60Hz to 200kHz, both sine wave and pulse wave.


Expert may consult nationally and internationally, and is also local to the following cities: Phoenix, Arizona - Tucson, Arizona - Mesa, Arizona - Glendale, Arizona - Scottsdale, Arizona - Chandler, Arizona - Tempe, Arizona - Gilbert, Arizona - Peoria, Arizona

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Education

Year Degree Subject Institution
Year: 1967 Degree: PhD Subject: Electrical Engineering Institution: Stanford University
Year: 1953 Degree: MS Subject: Electrical Engineering Institution: Stanford University
Year: 1948 Degree: BS Subject: Physics Institution: Redlands University

Work History

Years Employer Title Department Responsibilities
Years: to Present Employer: Undisclosed Title: Department: Responsibilities:
Years: 1986 to 2000 Employer: Title: Adjunct Professor and Professor Emeritus Department: Responsibilities:
Years: 1969 to 2000 Employer: Title: Professor, Electrical and Computer Engineering Department: Responsibilities:
Years: 1948 to 1970 Employer: NASA,, Electronics Research Branch, Ames Title: Chief of Branch Department: Responsibilities:
Years: 1962 to Present Employer: Undisclosed Title: Head of Electronics Department Department: Responsibilities:

Career Accomplishments

Associations / Societies
Expert is a Fellow in IEEE for active RC research, NASA invention awards, and NASA patent awards.
Awards / Recognition
Expert received the Centennial Medal from IEEE.

Fields of Expertise

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