Intellex Acquires Expert by Big Village

We're thrilled to announce that Intellex has acquired Expert by Big Village, effective March 22, 2024. This strategic move enhances our capabilities and strengthens our commitment to delivering exceptional solutions to our customers.

Stay tuned for more updates on how this acquisition will benefit our clients and experts.

For inquiries or more information, please contact us at info@intellex.com.

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Expert Details

Power Electronics

ID: 722755 Massachusetts, USA

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Expert has designed power supplies for over 20 years. He has designed flyback, forward, and sepic topologies for ac/dc and dc applications with power levels from a few watts to over 2KW. Expert notes that power supply design involves knowing feedback systems, amplifier design, instrumentation and electronic devices. He has incorporated this knowledge in developing a defibrillator, ultra-sonic test equipment, an FM transmitter, and audio circuits.

For ultrasonic test equipment, Expert designed a low noise, high gain amplifier. With attenuators, gain could be controlled from -40db to 80db.

All designs are prototyped by Expert. He tests all designs and compares the results with his design calculations. This guarantees all designs meet the requirements specified by the client.

A startup was developing a low cost defibrillator which they could not make work. Hedetermined the problem and finished developing the project.A processor would hang randomly during operation. Hedetermined the problem was grounded between the power supply and processor board. The fix was simply improving the grounding between the two boards.A small company developed a dc/dc converter from a particular vendor by using the application note. Some of the converters would fail after being turned on a few times. He determined the problem was the vendor's gate drive IC. During narrow pulse widths at turn on, the driver sometimes did not turn off the FET, causing it to fail. The manager confronted the vendor and they admitted they knew about the problem, and had just starting sampling a replacement driver.An alarm company had a power supply that was a problem in manufacturing. The power supply had been designed outside.He showed the manager that the design was not well thought out. He modified the design, removing a number of components and reworking the board. The company found the reworked board solved the problems. Expert helped re-layout and test the new board.A dc/dc power supply was needed for a scanning electron microscope. The input was 24V and the output had to be 400V with 13KV isolation. Expert designed a simple power supply that met these requirements.Expert has designed power supplies for over 20 years. He has designed flyback, forward, and sepic topologies for ac/dc and dc applications with power levels from a few watts to over 2KW. Expert notes that power supply design involves knowing feedback systems, amplifier design, instrumentation and electronic devices. He has incorporated this knowledge in developing a defibrillator, ultra-sonic test equipment, an FM transmitter, and audio circuits.

For ultrasonic test equipment, Expert designed a low noise, high gain amplifier. With attenuators, gain could be controlled from -40db to 80db.

All designs are prototyped by Expert. He tests all designs and compares the results with his design calculations. This guarantees all designs meet the requirements specified by the client.

A startup was developing a low cost defibrillator which they could not make work. Hedetermined the problem and finished developing the project.

A processor would hang randomly during operation. Hedetermined the problem was grounded between the power supply and processor board. The fix was simply improving the grounding between the two boards.

A small company developed a dc/dc converter from a particular vendor by using the application note. Some of the converters would fail after being turned on a few times. He determined the problem was the vendor's gate drive IC. During narrow pulse widths at turn on, the driver sometimes did not turn off the FET, causing it to fail. The manager confronted the vendor and they admitted they knew about the problem, and had just starting sampling a replacement driver.

An alarm company had a power supply that was a problem in manufacturing. The power supply had been designed outside.He showed the manager that the design was not well thought out. He modified the design, removing a number of components and reworking the board. The company found the reworked board solved the problems. Expert helped re-layout and test the new board.

A dc/dc power supply was needed for a scanning electron microscope. The input was 24V and the output had to be 400V with 13KV isolation. Expert designed a simple power supply that met these requirements.

Education

Year Degree Subject Institution
Year: 1976 Degree: B.E.E. Subject: Electrical Engineering Institution: City College of New York
Year: 1976 Degree: B.E.E. Subject: Electrical Engineering Institution: City College of New York

Work History

Years Employer Title Department
Years: 1995 to Present Employer: Undisclosed Title: Consultant Department:
Responsibilities:
He is responsible for reviewing existing designs or creating new designs based on clients' needs.
Years Employer Title Department
Years: 1993 to 1995 Employer: Title: Engineer Department:
Responsibilities:
He developed analog circuits for ultrasonic test equipment, and wrote programs to test circuitry.
Years Employer Title Department
Years: 1990 to 1992 Employer: Visual Technology Title: Principal Engineer Department:
Responsibilities:
Expert designed power supplies and high resolution monitors for use in X-Windows applications.
Years Employer Title Department
Years: 1985 to 1990 Employer: Prime Computer Title: Principal Engineer Department: Technology
Responsibilities:
As project manager, he developed the system specifications, schedules, and designs for the power requirements of new products. He also performed employee evaluations. In addition, he performed design functions.
Years Employer Title Department
Years: 1983 to 1984 Employer: Power General Corp. Title: Senior Project Engineer Department:
Responsibilities:
Expert created a line of small, low-cost power supplies (100 watts to 200 watts) to be sold from a catalog. He prototyped all magnetics. He interfaced and supported sales, marketing, applications, and production during and after development.
Years Employer Title Department
Years: 1982 to 1983 Employer: Unitrode Corp. Title: Senior Application Engineer Department:
Responsibilities:
He answered technical questions of customers who used power supply ICs. Presented technical material at design seminars around the country.
Years Employer Title Department
Years: 1979 to 1982 Employer: Digital Equipment Corp. Title: Engineer Department:
Responsibilities:
Expert created power supplies for use in dot matrix printers and monitors.
Years Employer Title Department
Years: 1995 to Present Employer: Undisclosed Title: Consultant Department:
Responsibilities:
He is responsible for reviewing existing designs or creating new designs based on clients' needs.
Years Employer Title Department
Years: 1993 to 1995 Employer: Title: Engineer Department:
Responsibilities:
He developed analog circuits for ultrasonic test equipment, and wrote programs to test circuitry.
Years Employer Title Department
Years: 1990 to 1992 Employer: Visual Technology Title: Principal Engineer Department:
Responsibilities:
Expert designed power supplies and high resolution monitors for use in X-Windows applications.
Years Employer Title Department
Years: 1985 to 1990 Employer: Prime Computer Title: Principal Engineer Department: Technology
Responsibilities:
As project manager, he developed the system specifications, schedules, and designs for the power requirements of new products. He also performed employee evaluations. In addition, he performed design functions.
Years Employer Title Department
Years: 1983 to 1984 Employer: Power General Corp. Title: Senior Project Engineer Department:
Responsibilities:
Expert created a line of small, low-cost power supplies (100 watts to 200 watts) to be sold from a catalog. He prototyped all magnetics. He interfaced and supported sales, marketing, applications, and production during and after development.
Years Employer Title Department
Years: 1982 to 1983 Employer: Unitrode Corp. Title: Senior Application Engineer Department:
Responsibilities:
He answered technical questions of customers who used power supply ICs. Presented technical material at design seminars around the country.
Years Employer Title Department
Years: 1979 to 1982 Employer: Digital Equipment Corp. Title: Engineer Department:
Responsibilities:
Expert created power supplies for use in dot matrix printers and monitors.

Career Accomplishments

Associations / Societies
Expert is a member of IEEE.

Additional Experience

Vendor Selection
Vendor selection is just one step in a process of new designs, fixes of existing designs, or selection of off-the-shelf designs. He uses this skill continuously.

Fields of Expertise

adjusted circuit, DC-to-DC converter, consumer electronic product, power electronics, power factor controller, power-supply circuit, analog circuit, output power, output power rating, parallel circuit, electronics cooling, Ohm's law, amplifier, amplifier circuit, passive circuit, electronic circuit, electronics design engineering, electronics engineering, electronic breadboard, electronics reworking, electronics testing

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