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$30 USD /timme
Flagga för UNITED STATES
manchester, united states
$30 USD /timme
Datum, tid och plats: 6:44 fm
Gick med februari 25, 2019
1 Rekommendation

Alvin B.

@abranch2

 5,0 (2 omdömen)
5,9
5,9
100%
100%
$30 USD /timme
Flagga för UNITED STATES
manchester, united states
$30 USD /timme
100 %
Slutförda jobb
100 %
Inom budget
100 %
Inom tid
N/A
Återanställningsgrad

Electrical Engineer - Specializing in PCB design & digital/analog circuit design (AC or DC)

My name is Alvin Branch. I earned my bachelors in electrical engineering from Penn State University; a top rated university for electrical engineering. I currently work for a major defense contractor and do freelance/contract work also. my focus is PCB layout and design, microcontrollers, power electronics, dc-dc converters, smps, analog/digital circuit design. I can work flexiable hours and stand behind my designs 100%.
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Portfolio

4793750
A DC-DC converter of my own design. Takes 48VDC and converts it to 350VDC utilizing the full bridge topology with high frequency transformers that I designed and built by hand. On-board Arduino to control safety features: overvoltage, under voltage, overcurrent, short circuit protections. Utilized active feedback to keep output voltage stable under varying loads. Achieved 93% efficiency at over 800W.
48-350 VDC DC-DC Boost Converter PCB
A DC-DC converter of my own design. Takes 48VDC and converts it to 350VDC utilizing the full bridge topology with high frequency transformers that I designed and built by hand. On-board Arduino to control safety features: overvoltage, under voltage, overcurrent, short circuit protections. Utilized active feedback to keep output voltage stable under varying loads. Achieved 93% efficiency at over 800W.
48-350 VDC DC-DC Boost Converter PCB
A DC-DC converter of my own design. Takes 48VDC and converts it to 350VDC utilizing the full bridge topology with high frequency transformers that I designed and built by hand. On-board Arduino to control safety features: overvoltage, under voltage, overcurrent, short circuit protections. Utilized active feedback to keep output voltage stable under varying loads. Achieved 93% efficiency at over 800W.
48-350 VDC DC-DC Boost Converter PCB
4793762
A DC-AC sinusoidal pulse width modulation (SPWM) board of my own design. Takes a DC voltages and inverts it into an AC waveform utilizing an off the shelf SPWM controller. Features a high current low pass filter to get 60Hz sine wave at output.
DC-AC SPWM Inverter Board
A DC-AC sinusoidal pulse width modulation (SPWM) board of my own design. Takes a DC voltages and inverts it into an AC waveform utilizing an off the shelf SPWM controller. Features a high current low pass filter to get 60Hz sine wave at output.
DC-AC SPWM Inverter Board
4793759
A DC-DC converter control board of my own design. Utilizes a PWM control IC and high side MOSFET drivers. Adjustment potentiometers controls dead-time of full bridge drive signals and switching frequency.
DC-DC Converter Control Board
A DC-DC converter control board of my own design. Utilizes a PWM control IC and high side MOSFET drivers. Adjustment potentiometers controls dead-time of full bridge drive signals and switching frequency.
DC-DC Converter Control Board
4793750
A DC-DC converter of my own design. Takes 48VDC and converts it to 350VDC utilizing the full bridge topology with high frequency transformers that I designed and built by hand. On-board Arduino to control safety features: overvoltage, under voltage, overcurrent, short circuit protections. Utilized active feedback to keep output voltage stable under varying loads. Achieved 93% efficiency at over 800W.
48-350 VDC DC-DC Boost Converter PCB
A DC-DC converter of my own design. Takes 48VDC and converts it to 350VDC utilizing the full bridge topology with high frequency transformers that I designed and built by hand. On-board Arduino to control safety features: overvoltage, under voltage, overcurrent, short circuit protections. Utilized active feedback to keep output voltage stable under varying loads. Achieved 93% efficiency at over 800W.
48-350 VDC DC-DC Boost Converter PCB
A DC-DC converter of my own design. Takes 48VDC and converts it to 350VDC utilizing the full bridge topology with high frequency transformers that I designed and built by hand. On-board Arduino to control safety features: overvoltage, under voltage, overcurrent, short circuit protections. Utilized active feedback to keep output voltage stable under varying loads. Achieved 93% efficiency at over 800W.
48-350 VDC DC-DC Boost Converter PCB
4793762
A DC-AC sinusoidal pulse width modulation (SPWM) board of my own design. Takes a DC voltages and inverts it into an AC waveform utilizing an off the shelf SPWM controller. Features a high current low pass filter to get 60Hz sine wave at output.
DC-AC SPWM Inverter Board
A DC-AC sinusoidal pulse width modulation (SPWM) board of my own design. Takes a DC voltages and inverts it into an AC waveform utilizing an off the shelf SPWM controller. Features a high current low pass filter to get 60Hz sine wave at output.
DC-AC SPWM Inverter Board
4793759
A DC-DC converter control board of my own design. Utilizes a PWM control IC and high side MOSFET drivers. Adjustment potentiometers controls dead-time of full bridge drive signals and switching frequency.
DC-DC Converter Control Board
A DC-DC converter control board of my own design. Utilizes a PWM control IC and high side MOSFET drivers. Adjustment potentiometers controls dead-time of full bridge drive signals and switching frequency.
DC-DC Converter Control Board

Recensioner

Ändringar sparade
Visar 1 - 2 av 2 omdömen
 Filtrera omdömen efter:
5,0
$8 333,00 USD
Circuit Design EE
Alvin is very quick and precise with his work! We are definitely;y satisfied with all his help and continue to hire him again ASAP.
Engineering
Electronics
Electrical Engineering
Circuit Design
Använd avatar
Flagga för Thomas M.
@tcmarrs
•
fem år sedan
5,0
$500,00 USD
Gerber data designer
Alvin was a pleasure to work with. He was very professional and quick to answer questions and get started ton the project. He had the project completed way ahead of schedule. He insures that his files are ready for production and is standing by to make changes if need be. I will defently use him again in the future and would Highly reccomend him to anyone needing electrical design work done.
Electronics
CAD/CAM
Solidworks
PCB Layout
Circuit Design
C
Flagga för Cody B.
@cbryan6
•
fem år sedan

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Electronics 2
Circuit Design 2
Engineering 1
Electrical Engineering 1
PCB Layout 1

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