Engineer Electrical
Resume:
Ethan Berry
San Jose, Ca. ****2
*****************@*****.***
As an Electrical Engineer, I am looking forward to developing my career within a dynamic engineering environment. As a hard working member of the engineering team, I understand the importance of continuous professional development. Education
California State Polytechnic University, Pomona
Bachelor’s of Science in Electrical and Computer Engineering Experience:
Electrical Engineer at Moog Animatics Jan 2014 -- Present At Moog Animatics I expanded on my Power and Control Electronics background with a fast paced Motor Control company. While at Moog Animatics I learned a lot about the techniques used to control Permanent Magnet Synchronous Machines [PMSM's], and their applications. While at Animatics, I was a key member of an inter-disciplinary team, with my focus being on hardware and firmware development, for a variety of integrated motors. This would include the drive and control electronics, and Communication interfaces such as CANopen, USB, DeviceNET, EtherCAT, and EthernetIP. The projects I worked on included the following:
1. A robotic steering wheel controller, and automated test fixture 2. Several different motor drive and control boards ranging from 100 to 800 Watt outputs 3. A CANopen interface board.
4. EMI and ESD Compliance testing.
5. Dynamo-meter testing
6. Firmware development for DSPic's and Cypress' PSOC's using version control. 7. Schematics and layout capture using Altium
8. Scripting for controllers using Animatics' proprietary Smart Motor Interface [SMI] 9. Aided Production by developing solutions to failure modes on various products 10. Reviewed and aided in the develop product literature R&D Engineer at KGS Electronics Feb 2012 – Jan 2014 At KGS I continued building my knowledge of switch mode power supplies (SMPS's). KGS has a complete line of power converters for use in the aviation industry. While working at KGS, in addition to becoming familiar with many of their power supply designs, and the DO-160 standards, my tasks included the following:
● I designed and successfully tested the prototype of a three phase power factor corrector (PFC), which implemented the technique developed at UC Irvine called unified constant- frequency integration (UCI), which is a variable structure, one cycle control (OCC) technique for balanced three phase PFC's. The final design operated at 97% efficiency at 3.3kW, and was capable of outputting 5.5kW.
● I also designed and successfully tested a prototype of a Phase Shifted Full Bridge Converter, with some modifications to the standard topology to increase the soft switching range, and efficiency. The finished unit operated at 96% efficiency at 3kW, and was capable of outputting 4.9kW.
● I aided in the execution of engineering change orders, by validating the changes and documenting my test results. I also made updates to production test procedures as needed.
● I helped the production testers troubleshoot various power supplies.
● I simulated all my designs in LT Spice, in time domain, and frequency domain to validate their operation, efficiency, and stability.
● I designed schematics and PCB's using Altium
Hardware Engineer at Renkus Heinz Feb 2009 – Feb 2012 Working for this pro-audio company, I learned to take a proactive approach to solving a wide variety of problems. I worked with an interdisciplinary team and OEM suppliers to solve various complex problems, and gained a lot of valuable experience in the process. I also played a key role in the development of the IC Squared loud speaker, from concept to completion.
● I completed various schematic and PCB designs, which would typically include a DSP, a micro controller, a sample rate converter, multiple ADC’s, DAC’s, signal conditioning circuits, and multiple RF line transceivers.
● I aided in the development of firmware for the DSP, micro controller and peripheral devices.
● I developed my troubleshooting techniques on a variety of electronic circuits, which included DSP’s, micro-controllers, media access controllers (MAC’s), Class D and Class B amplifiers, power supplies, equalizers and compressors, and used CobraNet to interface to the company’s proprietary RHAON software.
● I assisted the testing and production department:
● I designed test fixtures and automated test procedures using Audio Precision and VisualC.
● I programmed their surface mount assembly machine for first article PCA's. Associate Engineer for PowerPhysics Jun 2006 –Feb 2009 I gained experience in every level of the development of switching power supplies and amplifiers - PCB design, prototype testing, temperature testing, production documentation, and repair.
● Used Eagle CAD for Layout design switched mode power supplies [SMPS's] and Class-D Audio Amplifiers.
● Tested prototype Power Supplies and Amplifiers, and made design corrections to the circuits as needed.
● Repaired amplifiers and power supplies.
● Gained strong knowledge of forward converters, flyback converters, power factor correctors
(PFC’s) and one-cycle-control, and various other analog circuits.
● Prepared Bill of Materials, Assembly Instructions, and Engineering Change Orders. Some personal side projects I have worked on include:
● I built a Class B tube amplifier for guitar.
● I have designed three types of bio-feedback devices: 1. An Electro-occulogram - which monitors eye motion bases on the electric field near the eyes. 2. An Infrared proximity detector for monitoring motion in people eyes. 3. An electro-myogram – with detects movement of skeletal muscles.
● I have worked on a few robotics projects at school in which I: 1. I designed low power motor controller.
2. I wrote PIC micro controller code for a remote control robot in C, in which I created my own bundling sequence for radio transmission.
● I simulated a Direct Torque Control method for a three-phase induction motor in Simulink. Software and other Experience:
1. Eagle, Pads, Altium: For schematic and PCB design 2. LTspice, Pspice: For circuit simulation
3. Xilinx IDE: For FPGA firmware development using Verilog 4. MatLab: For state space and robust controls and much more 5. Simulink: For simulating circuits, and generating FPGA code 6. Auto CAD: For mechanical drawings
7. C programming: For PIC and SiLabs micro controllers, and Cypress PSOC's 8. DSP Conductor: For Cirrus Logic DSP’s
9. SMI: Programming language for the Animatics Smart Motor 10. Other: I am highly skilled at soldering, using oscilloscopes, Audio Precision, and other test equipment. I am trying to expand my career as an electronics design engineer. I would prefer a career path that continuously challenges me to expand my understanding of all physical and/or biological systems, and the electronics that are used to control, improve or mimic them. I also have a passion for audio, and making the world a happier, healthier and more beautiful place, and by contributing to the advancement of greener and/or renewable energy.
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