John W. Gregory 36028 Hees Street

Livonia, MI 48150 gregor87@gmail.com http://www.linkedin.com/in/johnwilliamgregory

Phone: 248-259-7224 Objective To continue building on my experience in embedded systems or machine automation within the company that needs an experienced analog circuit designer, firmware and PLC programmer. I want to offer up my problem solving abilities by working on the design team that is responsible for realizing the software and hardware in such an area. Education Jan '07 - Dec '10 Master of Science in Electrical Engineering (with Thesis), Michigan State University –

Control Systems Specialization - GPA: 3.6 Gregory, J.W. (2011) Development of Haptic Electrotactile Rendering Device:

Design Implementation and Testing, M.Sc. Thesis. Michigan State University: MI Thesis (click here)

(http://etd.lib.msu.edu/islandora/object/etd%3A121/datastream/OBJ/view) Professional Experience

Nov '14 – Current Coritech Systems, Royal Oak, MI Electrical and Controls Senior Engineer

I • PLC programmer and hardware integrator for hybrid microgrid and smart power distribution systems. • Responsible for integrating power converters and programming PLC logic for experimental 60 kW

hybrid microgrid at Detroit Arsenal, which parallels in diverse power sources (grid, 60 kW solar array, 80 kWh Li-ion battery pack, and standby generator) onto a common high voltage DC bus. Double conversion was employed to derive conditioned AC power from common DC bus.

PVGSI Hybrid Microgrid and PDU (click here) http://www.lextm3.com/products/power-distribution/smart-hybrid-power-

systems.html• Developed software and integrated hardware for test system in remote power quality metering and data

logging application. Responsible for integrating metering instrumentation, remote-based communication hardware, SCADA server and user interface. Scripted the SQL database logging, and programmed user interface and SQL querying backend in Visual Basic Studio. Setup and programmed with OPC Systems .NET for SCADA server.

• Currently on multi-team effort integrating a mobile microgrid for TARDEC demonstration at Detroit Arsenal. Microgrid consists of power distribution units (PDUs) with integrated 90 kW inverters each with own connected vehicle and battery electronic storage unit (ESU) conditioned DC sources, all connected via a high power, high-voltage DC bus.

• Lead engineer for PDU design of control circuits, cooling system, and power inverter integration inside (PDU) enclosure(s). Defined sequence, software permissives and programmed PDU’s local CAN controller and I/O in C code for internal control and interaction with grid master controller.

• Specified CAN-based J1939 interface control document standardizing communication with grid master controller.

• Designed custom PCB board and analog circuit for J1772 locking pin motor PWM driver and prox/pilot signal conditioner.

Jan '11 – Oct ‘14 Wintek Electro-Optics, Ann Arbor, MI Electrical and Controls Engineer

• Principle engineer in charge of integrating instrumentation, communication networks, and PLC automation and process control for three vacuum process industry R&D systems developed in-house: An atomic layer deposition (ALD) batch process; a plasma-enhanced chemical vapor deposition (PECVD) cluster tool; and the roll-to-roll vacuum web handling system for a rapid photonic annealing arc lamp.

P100 demonstration (click here) (https://www.youtube.com/watch?v=tyr-I7ITKa4) PVT demonstration (click here) (https://www.youtube.com/watch?v=lZzxCBp5njc)

• Programmed in RSLogix 5000 with ControlLogix with Ethernet/IP communication to remote panels for ALD tool. Programmed in RSLogix 5000 with CompactLogix for PECVD tool.

• Designed 52 node DeviceNet network and programmed using RSNetWorx for DeviceNet.• Developed low-level; TCP/IP sockets based application driver in CompactLogix controller to

communicate and control robot substrate handler for PECVD cluster tool.• Designed circuit-level module and programmed LabVIEW software GUI and backend to trend and log

Photovoltaic panels I/V output along with weather station data• Designed the panel and controls for regulating water flow from our facility water cooling tower.• Engineered our facility safety monitoring station for all tools and equipment running in our R&D

center.• Integrated control for hazardous gas mixing system and designed facility safety interlocks for Praxair

hazardous gas cabinets.• Gained experience with heating control and working on process control in the vacuum process industry• Worked with integrating 13.56 MHz, 2 kV high power RF generators for gas plasma generation

Jan '08 – Dec '10 Robotics and Automation Laboratory, Michigan State University, Lansing, MI

Engineering Research Assistant In Micro-Robotics Laboratory • Team member in the design of a high-resolution optical sensor for acquiring haptic data for the

quantification of car leather interior textures, as an example. Ford sponsored the project. • Theoretical control work and designer of real-time embedded system for an electronically-induced

tactile display. I developed the hardware frontend driver circuit and C software for the embedded system. The realized algorithm involved online parameter-based calibration to skin electronic impedance for appropriate voltage signals delivered to the finger-electrode interface. GUI was programmed with Microsoft Win32 API library in C.

Publications and Achievements

• J. Gregory and Y. Sheen, et al., “On-Line Bio-Impedance Identification of Fingertip Skin for Enhancement of Electrotactile Based Haptic Rendering” (submitted to IEEE/RSJ Int. Conf. on Intelligent Robots and Systems, San Francisco, 2011).

• J. Gregory and Y. Sheen, et al., “Stimulation Current Control for Load-Aware Electrotactile Haptic Rendering: Modeling and Simulation” (submitted to International Conference on Advanced Robotics, Tallinn, 2011).

• J. Gregory N. Xi, et al., “Real-time identification of human finger impedance for haptic rendering”, 2010 Inverse Problems Symp., East Lansing., MI., 2010.