John Balchunas Email & Phone Number

Chaska, MN

• Lead Electrical Engineer for design of Life Sciences benchtop refractometer and continuation engineering of fluid sensing and electro-mechanical flow control products
• Emissions, Immunity and Safety testing for Regulatory Compliance of product
• Performs component engineer function for NPD and legacy products
• Develops and manages validation and qualification plans with product stakeholders
• Provides manufacturing support, preventative and corrective actions, ECOs
• Travels locally and out-of-state, developing suppliers and servicing customers

Coon Rapids, MN

• Conduct supplier audits
• Establish IPC-6012 C=0 sampling plan for efficient assessment of PCB acceptability
• Ensure that non-conformances are fed back to, and followed up with, suppliers
• Create X-Ray methodology to quantitatively assess PCB conductor cross section

Arden Hills, MN

• Implement reliability improvements for 350 watt, universal input, power supply
• Prepare installation procedures
• Qualify second source

New Hope, MN

• Prioritize daily work, monitor, motivate and recognize performance
• Install, set up and maintain automated LED assembly equipment
• Perform component engineer function

Arden Hills, MN

• Provide daily engineering support to slide line and soldering operations
• Identify and eliminate root cause of purchased DC-DC converter module failures
• Develop epoxy potting process
• Mentor test technicians, reducing unnecessary iterations and rework

Greenfield, MA

• Prepare OrCAD schematics and printed circuit board layouts

West Springfield, MA

• Complete 350 watt, 100 kHz, multi-output flyback switch mode power supply
• Extend the battery life of Night Vision products with low-loss reverse battery circuit
• Design compact 12 to 40,000 volt power supply layout - fits inside a playing card deck
• Prepare PADS Power PCB schematics and layouts
• Develop technique to overlay and design board-pairs on the same screen

South Deerfield

• Design 93% efficient buck, and 100 watt forward converter with integrated magnetics
• Lead PCB designer
• Train other designers in the latest tools and techniques for DFM and PADS PCB layout
• Design controlled impedance lines on mixed dielectrics
• Develop technique to merge complex microwave shapes and land patterns

Westbrook, CT

• Develop in-house SMT paste-in-hole process, eliminating 3 solder fountain operations
• Perform PCB failure analysis and implement corrective actions per IPC standards
• Qualify and integrate 2 kW power supply for Mini CO system saving $250,000/yr
• Document assembly procedures
• Publish SMT work

Meriden, CT

• Identify and eliminate root cause of intermittent field failures through thermal cycling
• Simplify rectifier assembly parts count from 66 to 10
• Continuously improve yields at GenRad automated test
• Represent engineering on the Quality Assurance Material Review Board

Northford, CT

• Prepare documentation to U.S. Commerce Department regarding exports
• Support principal engineer during clinical field trials
• Build and test prototype circuits under engineer’s supervision
• Design 3 MHz signal generator with log output to calibrate ultrasound equipment.