Emmanuel Usuah

Experienced senior electronics technologist with 13+ years of experience in electronic circuit design, modeling, prototyping, troubleshooting, and repairing sophisticated electronic systems, including designing switched-mode power supplies (SMPS) and printed circuit boards (PCBs).

Senior Technologist (Electronics)
University of Cross River State (UNICROSS), Calabar, July 2017 – Present 

● Simulated and analyzed the electrical characteristics of silicon (Si) based semiconductor devices, including PN junction diodes, bipolar junction transistors, and MOSFETs to support scientific investigations in semiconductor physics.
● Developed designs, models, and prototype electronic circuits to support scientific investigations in power electronics, including boost converters, buck converters, 
buck-boost converters, flyback converters, and phase shifted full bridge (PSFB) 
converters.
● Diagnosed and replaced defective components on circuit boards, including integrated circuits, MOSFETs, diodes, bipolar junction transistors, capacitors, etc.
● Performed schematic capture, component placement, and routing on PCB using Altium for analog and mixed-signal PCB layouts in accordance with the IPC-6012 
class 3 standards, including creating footprints and building the components library.
● Validated printed circuit board (PCB) layouts to identify and correct violations of specific manufacturer’s design rules, including performing DRC and ERC on the PCB layout.
● Performed analog circuit simulation, analysis, modeling, and testing using MATLAB/Simulink, LTspice, PLECS, Altium, oscilloscope, digital multimeter, and analyzer.
● Designed a multilayer PCB stack-up with EMI/EMC compliance using Altium while ensuring optimal signal integrity, power integrity, and thermal considerations.
● Performed surface mount device (SMD) soldering including MOSFETs, diodes, resistors, capacitors, inductors, and integrated circuits in accordance with IPC-A-610 standards. 

Freelance Technologist (Electronics)
Cross River University of Technology (CRUTECH), now University of Cross 
River State (UNICROSS), Calabar, August 2010 – June 2017

● Designed, modeled, and prototyped electronic circuits using MATLAB/Simulink, PLECS, Altium, and LTspice for academic research work, including troubleshooting 
circuit boards (variable frequency drives, switched-mode power supplies, and inverters). 

OTHM Level 7 Diploma in Project Management (Master’s degree)
Major: Technical Project
London School of Business and Research, London, United Kingdom
November 2021 – August 2022

Higher National Diploma (HND) in Science Laboratory Technology
Major: Physics and Electronics
Institute of Management and Technology, Enugu, Nigeria
November 2006 – December 2008 

National Diploma in Science Laboratory Technology
Major: Physics and Electronics
The Polytechnic, Calabar, Nigeria
September 2002 – August 2005