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 Expert  722755

Expert in Power Electronics


Available for your Consulting and Expert Witness Needs

Massachusetts (MA)
USA
Education Work History Career Accomplishments Consulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
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.

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adjusted circuit

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DC-to-DC converter

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consumer electronic product

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power electronics

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power factor controller

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power-supply circuit

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analog circuit

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output power

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output power rating

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parallel circuit

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electronics cooling

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Ohm's law

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household electronics

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amplifier

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amplifier circuit

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passive circuit

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electronic circuit

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electronics design engineering

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electronics engineering

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electronic breadboard

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electronics reworking

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electronics testing


Show Secondary and Basic Areas of Expertise
Localities:
Expert may consult nationally and internationally, and is also local to the following cities: Boston, Massachusetts;  Worcester, Massachusetts;  Springfield, Massachusetts;  Lowell, Massachusetts;  Cambridge, Massachusetts;  Brockton, Massachusetts;  New Bedford, Massachusetts;  Hartford, Connecticut;  Manchester, New Hampshire;  and Providence, Rhode Island.

Often requested
with this expert:

Power Electronics, Power Supplies
Power Electronics, Motor Drives, Renewable Energy, Etc.
Power Electronics (DC to 3 GHz), RF Power, Switching-Mode...
Power Electronics, Controls and System Design

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

Work History:
Years   Employer   Department   Title   Responsibilities

1995 to

 

(Undisclosed)

 


 

Consultant

 

Expert is responsible for reviewing existing designs or creating new designs based on clients' needs.

1993 to 1995

 

Panametrics

 


 

Engineer

 

He developed analog circuits for ultrasonic test equipment, and wrote programs to test circuitry.

1990 to 1992

 

Visual Technology

 


 

Principal Engineer

 

Expert designed power supplies and high resolution monitors for use in X-Windows applications.

1985 to 1990

 

Prime Computer

 

Technology

 

Principal Engineer

 

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.

1983 to 1984

 

Power General Corp.

 


 

Senior Project Engineer

 

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.

1982 to 1983

 

Unitrode Corp.

 


 

Senior Application Engineer

 

He answered technical questions of customers who used power supply ICs. Presented technical material at design seminars around the country.

1979 to 1982

 

Digital Equipment Corp.

 


 

Engineer

 

Expert created power supplies for use in dot matrix printers and monitors.


Career Accomplishments:
Associations/Societies

Expert is a member of IEEE.


Consulting Services:
Selected Consulting Examples:
  • A startup was developing a low cost defibrillator which they could not make work. Expert determined the problem and finished developing the project.
  • A processor would hang randomly during operation. Expert determined 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. Expert 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. Expert 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.
Recent Client Requests:
  • DC circuit engineering expert for consulting on a DC to DC converter design prototype.
  • Power electronics expert for consulting on DC:DC boost converter battery charger.
  • Power conversion expert for consulting on DC power generation to power a hydraulic pump system on a trailer.
  • Expert in Power Electronics.
  • Expert in Quasi-resonant switching power supply.
  • Expert in frequency conversion circuits for consulting on 2 prototype circuits for (1) 60 Hz to 500 kHz and (2) 500 kHz to 60 Hz.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:
Supplier and Vendor Location and Selection

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


 

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