delabs design


Product Development Fundamentals

Product Development Fundamentals
Product Development Fundamentals

Electronic Product Design and development capability can be refined and enhanced only by practical experience. A student can learn these aspects by working in a Engineering Service Company.

Building Custom design Solutions for clients will build skills of component selection, black box specs, customer communication and prototype testing among many others.

A. Product Design Sections :

  1. Electronic Engineering - Circuit Design, PCB Design, EDA.
  2. Mechanical Engineering - CAD, Tool and Die Design, Enclosure
  3. Software Engineering Firmware - PC ware, CASE, emulators

B. Methods of Product Design :

  1. Design Automation. - Design and Simulation with Computer.
  2. Computer Aided Design - Design on Computer, Breadboard test.
  3. Conventional Design. - Paper design with Breadboard test

Electronic Product Design involves Electrical, Mechanical and Material Engineering too. This depends on the product complexity and the involvement of the R&D team in the component engineering too. Some products like RF and Robotics may need custom semiconductors and Some Wearable Electronics may need a custom ASIC as the heart of the device.

Circuit Design Service of delabs - Product and Circuit design. Consulting tech service.

C. Criteria of Product Design :

  1. Ergonomics - User friendly Interface of controls, display, etc..
  2. EMI / RFI Ext.- Immunity to external electrical disturbance.
  3. EMI / RFI Int. - Reduction of Internal electrical noise generation.
  4. Input Cost - Selecting Cost effective components and methods.
  5. Product Safety - Eliminating shock hazard, fire hazard or stress.
  6. Corrosion res.- Resistance to Chemical Fumes, brine, gases etc..
  7. Reliability - Long Life reliability engineering, MTBF, stability.
  8. Serviceability - Accessibility - Maintenance and repairs, Self test.
  9. Vibration - Enclosure / Components to be vibration resistant .
  10. Ease of Manufacture.- Manufacture ease and provision for test and Calibration..
  11. PC Interface - RS232, GPIB, etc. for PC Control and recording.
  12. Upgrade Ease - Options, Software change, Hardware upgrades.
  13. Quality - Design, Components, Production methods.
  14. Accuracy - Specifications of performance and its stability.
  15. Misuse-Abuse - Rugged design both electrically and mechanically.

D. Criteria of Circuit Design :

  1. Technologies - Time proven technology and Standard Parts.
  2. Reliability - Component Selection and Design Methods.
  3. Modular - Allow for incremental upgrades and Service.
  4. Safety Margins - Overrating for Voltage, threshold, speed, etc..
  5. Testability - Test Points, Isolating Jumpers, self test mode.
  6. Isolation - High voltage isolation, User safety, grounding.
  7. Thermal Limits - Dissipation Limit, Heatsinks, Shutdown, Size.
  8. Protections - Fuses, Current Limit, Zeners, Varistors, Alarm.
  9. Power economy - CMOS Designs, LCD Designs, SMPS, Portable.
  10. Electrical Parts - Connector selection, Relays, Switches, PCB.
  11. Precision - Accuracy, Resolution, Drift, Thermal stability.

E. Black Box Specifications :

    Start Projekt {
  • Customer Interaction and Communication to make a specs sheet and drawing.
  • Block Diagram, feasibility, cost, risk, samples demo and study similar ideas.
  • Effective designs are cost effective within customer budget, draft BOM costing.
  • Circuit and Code design and get more inputs from customer and then freeze specs.
  • Build Dummy for ergonomics and discuss, Prototype and start test at site or simulate.
  • Calibration and testing and production documentation drafts final costs.
  • Pilot Production of a small batch, rigorous test batch, and freeze production documents.
  • Documents and Prototypes to be given to Production Engineering.
  • Production Engineering continue engineering maintenance and quality issues.
  • } End Projekt

GoTo Next Projekt

delabs design Notes from the 90s to date - EE Design Library - Electronic Product Design Resource.


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