John Ruthroff Email and Phone Number
Principal Electrical and Mixed-Signal (Digital / Analog) Design Engineer Proven track record of delivering resultsCustomer-centric Design Engineer who anticipates and implements design, integration and production to positively impact profitability. Leverages cross-functional expertise to connect “big picture” business needs to engineering specifics and problem solves at engineering level. Conducts component level troubleshooting. Expertise in:Analog Circuit Design | Digital Circuit Design | Microcontrollers | Brushless Motor Controllers | Power Supply Design | Embedded Software Development | Talent Management | Relationship Building | Interpersonal Skills TECHNICAL SKILLS: • Processors: Freescale Microcontrollers (S12P96, S12GA128), Microchip (PIC18xxx, DSP30F4013), TI (TMS430xxx) • Analog Circuit Design: Operational Amplifiers, Filters, Control circuits, Hall Sensors, Power Supplies • Design Tools: Altium EDA, TINA, LTSpice … • IDE Development Tools: CodeWarrior Development Suite, Visual Basic, MPLAB, Vector Canalyzer • Firmware/SW/OS: C, Assembly, Microsoft VB, Linux, Ubuntu…Have my own Development Laboratory for Remote Engineering Tasks.johnruthroff20@gmail.com
Techen
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Senior Electrical EngineerTechen Sep 2021 - Present -
Electrical EngineerSmith+Nephew Jun 2020 - Apr 2021Watford, Hertfordshire, Gb -
Principal Electrical EngineerStoneridge 2006 - 2019Novi, Michigan, UsManaged all aspects of electrical circuit development, Interfacing with customer to establish design criteria, collaborating with design team, developing circuits, supervising technicians on building prototypes, designing test stations, releasing to production, and following up on customer issues. • Generated $1M in annual sales by developing non-contact torque sensing probe for Case-New Holland using flux-gate technology. Interfaced with Mechanical and Production Engineers, ensuring continuity. Created schematic, BOM and Gerber files. Built and implemented software algorithms to process signals into real time torque measurements. Designed automatic microprocessor-based probe calibration system. • Generated $280M in sales / 15M units by creating Front Axle Disconnect Actuator (FAD) control circuit, using non-contact Hall sensing for Chrysler and General Motors. Physical circuit variations were generated. • Drove actuator design to work in environments of -40°c to 150°C and high vibrations. • Functioned as Lead Electrical Engineer on Integrated Park Module for Ford meeting Functional Safety requirements. The electronics board uses an integrated H-bridge DC Motor Driver including thermal shutoff and current protection with 1st generation unit in production and 2nd generation unit in developm • Opened company to new market by supporting Engineering team on successful Development of CAN based Turbo Charger Actuator for Honeywell. Constructed 3-phase Brushless Motor based rotary actuator, using a microprocessor and dedicated Mosfet driver IC. Worked with team to create in-house brushless motor capability. • Designed Actuator for high temperature and high vibration Commercial Truck use. • Created software algorithm for sinewave drive of Brushless Motor & software to improve output position control. • Verified product performance by building test set including software (C and Visual Basic). -
Contract EngineerTexas Instruments, Attleboro, Ma 2005 - 2005Solved standing problems allowing in-house design team to move forward. Collaborated on development of an arc fault detection product for aviation sector. Utilized multi-layer flex circuit using DSP processor. Solved a lightning strike failure problem allowing team to continue development. Generated arc fault library of waveforms for testing.
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Contract EngineerPanametrics, Waltham, Ma 2003 - 2005Developed the electronic circuits for moisture analyzer capable of measuring moisture in Parts Per Billion. Circuits included 2 heater controllers with total power rating of 350 watts, 24 bit A / D multiplexed front end for low level signal measuring using differential techniques and a Motorola Mcore processor section.
John Ruthroff Education Details
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Northeastern UniversityElectrical And Electronics Engineering -
University Of Nebraska-LincolnElectrical And Electronics Engineering
Frequently Asked Questions about John Ruthroff
What company does John Ruthroff work for?
John Ruthroff works for Techen
What is John Ruthroff's role at the current company?
John Ruthroff's current role is MSEE - Senior Electrical and Mixed-Signal (Digital / Analog) Design Engineer.
What schools did John Ruthroff attend?
John Ruthroff attended Northeastern University, University Of Nebraska-Lincoln.
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