José D. Hernández
Chester,USA
Summary
Seeking a position as Sr. Electrical Engineer, specializing in design, development, testing, sustaining, and manufacturing of products and systems.
Overview
38
38
years of professional experience
Work History
Sr. Electrical Engineer
FESTO Corporation
Billerica, MA
07.2020 - Current
- Design of Embedded controllers for the control of Smart pipettes handling a variety of liquids to the micro liter scale and Vacuum and Pressure Generators using the STM32F and STM32H line of micro-controllers.
- Design of electronics for prototypes, fixtures, including analog, digital and micro-controllers for the evaluation and testing of new components such as piezo-valves, proportional valves, solenoids, pressure sensors and stepper motors.
- Modify and redesign sections of legacy products to improve performance.
- Components selection for new and custom products.
- Assist the Test Department with verification of products before production release.
- Perform Test of Electronics under IEC-61010 before release of Designed Electronics in all products, including reliability testing, EMC testing support and ESD testing.
- Assist the software-firmware, test, and mechanical teams with all electrical needs.
- Troubleshooting of returned products and performing root cause analysis.
- PCB Design using Allegro for both Schematic Capture and PCB layout.
- Work with Headquarters in Germany for the Creation of Allegro library Parts.
- Support sustaining department with EOL and engineering support to solve manufacturing issues overseas.
- Bring up new PCB’s and debugging failures to the component level.
- Working with overseas groups (Germany and Bulgaria) for the manufacturing and production of PCB’s.
- Support to Marketing and Applications Engineering on new product developments.
- Complete timelines and Q-Gates phases for all products.
- Support Research and Development with Electrical Design projects, focusing on future added features to products.
- Mentoring and guiding junior engineers and interns with all electrical needs.
Sr. Electrical Engineer
EFI (Electronics for Imaging)
Londonderry, NH
07.2018 - 07.2020
- Responsible for the analysis, design, redesign, validation and release of electrical designs and components for all subsystems that make up released Grand Format Printers.
- Train technicians and Jr. Engineers in the troubleshooting of electrical sub-systems and components such PCBA’s, power supplies, PLC’s, Motors, etc.
- Design and implement electro-mechanical tools and fixtures to support deployed and new released products.
- Drive cost out of existing engineering design, improving the design for manufacturing and quality of field products, ECO initiation and implementations, and supplier quality activities.
- Provide on-site support for new product implementation, upgrades, EMI testing and troubleshooting for all product lines to manufacturing, application, and customer demo department.
- Identify, analyze, and resolve electrical, mechanical and software issues across all product lines of grand format printers.
- Work in collaboration with the Manufacturing Engineering team to coordinate implementing engineering and process changes of revised products through ECN’s and CAR’s.
- Support product failure investigations. Perform robust root cause analysis of production issues, product design issues, implement appropriate containment, and drive corrective action.
- Coordinate resources between Quality, R&D, Manufacturing, Supply Chain to take the re-design of a product into production.
- Perform component End-Of-Life engineering activities.
- Effectively managing and completing multiple projects and keep spending to approved budgets.
RF / Sr. Electrical Engineer
Cynosure (A Hologic Division)
Westford, MA
06.2017 - 07.2018
- System level electrical design.
- Design electronics in Schematic Capture and PCB Layout design.
- Simulate and prototype analog, digital and power electronics circuitry.
- Support test and troubleshooting of RF Surgical Systems operating at 1.7 MHz, 4.0 MHz and 500 KHz working directly with program, test and quality engineering.
- Support test of electronic-modules and sub-assemblies of mixed technology (Analog, Digital and/or RF power amplifiers).
- Generate and review the technical content of test procedures, drawings, engineering specifications, reports, Engineering Change Orders, and other documentation.
- Support Root Cause and Corrective Action activities on released products.
- Functions as part of a team dealing with fast changing environment and multiple priorities.
- Generate test procedures for each board and the applicable module which will be used to verify the design of each and used as a baseline for future iterations of the boards.
- Coordinate the design of custom components such magnetics, relays and power supplies with multiple vendors.
- Develop system test procedure to verify/validate features and functionality at the system level.
- Hands-on troubleshooting to the component level on PCB Electronics, sub-modules and electro-mechanical systems.
- Provide training and support to technicians and manufacturing personnel as required by the program personnel.
- Medical product design experience, with IEC60601-1 and related standards.
Sr. Electrical Engineer
MEDTRONIC (Advanced Energy)
Portsmouth, NH
07.2011 - 06.2017
- As an Electrical Engineer, I have been responsible for the design of Analog, Digital, Power Electronics and RF Power Generator- Modules.
- I have been responsible for generating system schematics, designing circuits and schematics, implementing changes to existing products and electronic components and working closely with other electrical and mechanical engineers, technicians and product specialists.
- I have developed power modules for future Electro Surgical Generator products.
- The modules designed are: 400 Watts PFC Module, 350 Watts High Voltage Full Bridge Buck Module and 300 Watts DC to AC RF Module producing a 470 KHz Sinusoidal with 2200 Watts Peak Power for certain Modes and 300 Watts for Continuous wave modes.
- The RF Module is controlled by a micro-controller with high frequency PWM running at 80 MHz in a Full bridge configuration.
- The micro-controller runs a close loop PID controller to control power delivered to the load.
- I aided other groups in troubleshooting and repair of existing and returned products.
- Provided assistance to the Software and Mechanical engineers in all phases of Design and Testing.
- Generate Documentation for designs and Test protocols.
Systems Development/Electrical Engineer
Laser Projection Technologies Inc.
Londonderry, NH
11.2006 - 05.2011
- As Systems Development Engineer I've been responsible for the design of analog and digital electronics and support for existing and new products.
- One of my major responsibilities has been the implementation of state-of-the-art digital optical scanning systems for new products.
- Responsible for the support to manufacturing at various levels of testing and implementation of calibration and test of all the Laser Projections Systems for the Aerospace Industry.
- Full participant at every level on the design of new Laser Radar System, including design of analog and digital electronics for high speed APD and PMT photodetectors, 500ps pulsed Laser implementation and electro-mechanical sub-systems.
Power Electronics / Lighting Products Electrical Engineer
Contractor – Dialex Research Engineering
Orlando, FL
01.2006 - 11.2006
- As a Power and Electrical Engineers, I as was responsible for the design of low and high-power AC/DC input LED power supplies which are used to drive 350mA, 700mA and 1A High brightness LED’s.
- The power range of the designs was from 1 ¼ Watts to 60 watts of power.
- The various topologies for these designs were buck, boost and SEPIC using the latest technologies in IC LED drivers.
- I was responsible for the development of various universal input AC Offline LED power supplies with Phase TRIAC Dimming for power ranges from 12 watts to 100 watts, various topologies were used for the designs including forward and Flyback.
- I was responsible for the development of various embedded controllers for lighting, including digital LED drivers and DMX-512 multiple channel receiver-LED drivers for powers of 40 watts up to 200 watts output power modules.
- Another role in this position was to work with sales and customer support in the development of new lighting products.
- My overall functions included from concept to final production assembly, testing support and to a finish product.
Senior Electrical Engineer
Nutfield Technology Inc.
Windham, NH
09.2000 - 01.2006
- As Senior Electrical Engineer I've been responsible for the design of all the electronic products including state of the art PID Servo Control Amplifier for Low Inertia and Resonant Scanners, with characteristics for low noise and low drift performance.
- Design of 12MHZ and high accuracy capacitive sensor for various Galvanometers.
- Design 16-Bit parallel D/A interface to drive Servo Amplifiers and interface Software.
- Team member in the development and testing of all Optical Scan Products.
- Tested new products and characterized to improve performance and manufacturing.
- Developed test processes and documentation of products and custom assemblies.
Electrical Engineer
Philips Analytical
Natick, MA
11.1999 - 09.2000
- Team member in the design of a Metrology Measurement tool for the Semiconductor Industry.
- Responsible for the design of Power Distribution Unit, Design of System I/O and Control.
- Design and Documentation of System Harness.
- Provided support to Software Engineers in the development of GUI.
Electrical Engineer
Virtek Vision Corporation
Woburn, MA
04.1998 - 11.1999
- Team member in the design of a Confocal Microscope for the Biomedical Industry, with emphasis on a 2, 3 and 4 lasers and simultaneous scan system.
- Designed low noise analog and digital electronics for Photomultiplier tube sensors.
- Designed electronics for driving an optical scanner, moving a translator type of assembly, which provided the fast X-axis raster scan for a Confocal Microscope.
- Designed power supply electronics and harness for entire system.
- Support, test, of system using software tools for biomedical analysis.
- Directed, supervised Electro-mechanical technicians involved in the project.
- Provided input in the design of GUI interface for operating the system using customer feedback and testing software changes.
- Participant in two patents for the design of a multiple laser confocal optical scanning system and Crosstalk reduction in multiple channel simultaneous lasers scan of fluorescence dyes.
Electrical Engineer/ Servo Engineer
GSI Lumonics Inc.
Watertown, MA
04.1993 - 04.1998
- Company Overview: Optical Components Group
- Design electronic for Servo Amplifiers and Low inertia Optical Scanners, using Spectrum Analyzer to verify changes in the dynamics of the device under test.
- Assisted in all forms in the design of Optical Low Inertia Scanner torquer and capacitive sensor.
- Play a role in the design of feedback control Oscillator at 10MHz and 12 MHz.
- Verify functionality of new crystal clock oscillator for capacitive sensor used in the state-of-the-art Optical scanner.
- Perform a variety of tests and specs verification for resonant scanners and Low Inertia Scanners.
- Optical Components Group
Engineering Aide
GSI Lumonics Inc.
Watertown, MA
04.1987 - 02.1993
- Company Overview: Optical Components Group
- Assisted Senior Engineers in all design tasks of Optical components and Electro-optical Systems.
- Evaluated different topologies of Servo amplifiers, Position feedback, and feed-forward compensation.
- Modify electronics to meet performance criteria.
- Provide test results to all engineers involved in any project.
- Build and test circuitry prototypes, provide documentation and procedures to MFG.
- Write software programs to drive Servo electronics through D/A interface providing correct profile waveforms and voltage levels.
- Keep records of all tests and engineering notes and control of laboratory Equipment.
- Optical Components Group
Education
Bachelor’s - electrical engineering
UMASS Lowell
Lowell, MA05.2025
Certificate - Electronics Technology
Lowell Institute School, (MIT)
Cambridge, MA12.1988
Skills
- Schematic Capture (ORCAD & PADS Logic)
- PCB Design (Allegro & PADS PCB)
- Circuit Simulation (PSpice and LTSpice)
- Matlab
- Mathcad
- Oscilloscopes
- Dynamic Signal Analyzers
- Power Supplies
- LCR Meters
- IR Cameras
- Offline Power Supplies
- Offline LED Power Supplies
- Tubes
- Gas and Solid-State Lasers
- Op-Amps
- A/D
- D/A
- SMD
- Microcontrollers
- Capacitive Sensors
- Optics
- Power Op-amps
- Photodetectors
- High Voltage Power Supplies
- Magnetic Components
- MS Office
- Linux
- Atmel AVR
- ARM
- DsPIC
Software Firmware And Operating Systems
- MS Office
- Linux
- Atmel AVR
- ARM
- DsPIC
Patent Applications
- ELECTRO-OPTICAL MECHANICAL INSTRUMENT, USA Patent App. No. 09/674,585
- SIMULTANEOUS IMAGE ACQUISITION USING MULTIPLE FLOUROPHORE PROBE DYES, USA Patent App. No. USS/16795
Volunteer Experience
Builders International - Volunteer
Languages
- English
- Spanish
Keywords
Schematic Capture (ORCAD & PADS Logic), PCB Design (Allegro & PADS PCB), Circuit Simulation (PSpice and LTSpice), Matlab, Mathcad, Oscilloscopes, Dynamic Signal Analyzers, Power Supplies, LCR Meters, IR Cameras, Offline Power Supplies, Offline LED Power Supplies, Tubes, Gas and Solid-State Lasers, Op-Amps, A/D, D/A, SMD, Microcontrollers, Capacitive Sensors, Optics, Power Op-amps, Photodetectors, High Voltage Power Supplies, Magnetic Components
Personal Information
Citizenship: US Citizen
Timeline
Sr. Electrical Engineer
FESTO Corporation
07.2020 - Current
Sr. Electrical Engineer
EFI (Electronics for Imaging)
07.2018 - 07.2020
RF / Sr. Electrical Engineer
Cynosure (A Hologic Division)
06.2017 - 07.2018
Sr. Electrical Engineer
MEDTRONIC (Advanced Energy)
07.2011 - 06.2017
Systems Development/Electrical Engineer
Laser Projection Technologies Inc.
11.2006 - 05.2011
Power Electronics / Lighting Products Electrical Engineer
Contractor – Dialex Research Engineering
01.2006 - 11.2006
Senior Electrical Engineer
Nutfield Technology Inc.
09.2000 - 01.2006
Electrical Engineer
Philips Analytical
11.1999 - 09.2000
Electrical Engineer
Virtek Vision Corporation
04.1998 - 11.1999
Electrical Engineer/ Servo Engineer
GSI Lumonics Inc.
04.1993 - 04.1998
Engineering Aide
GSI Lumonics Inc.
04.1987 - 02.1993
Bachelor’s - electrical engineering
UMASS Lowell
Certificate - Electronics Technology
Lowell Institute School, (MIT)
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