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Monday, June 03, 2019

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 
Product Development Fundamentals

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.
EE Design Library - Electronic Product Design Resource.

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