Wednesday, July 23, 2014

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

Product Development Fundamentals



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.

Tuesday, July 15, 2014

Talking Electronics - Colin Mitchell

An e-magazine for newcomers and everyone who likes to be involved with electronics., aimed at teaching electronics from the beginning with courses, tests and interactive questions.

Talking Electronics - Colin Mitchell

The thrust of the course is for you to be able to design your own circuits and eventually move into the wonderful world of electronics as a career.

Talking Electronics - Colin Mitchell

"There are many different types of power supplies, including batteries, plug packs, switch-mode supplies and a basic transformer and bridge"

The Power Supply - Basic Electronics

"However the simplest power supply consist of a transformer, one or more diodes and a large filter capacitor (electrolytic)."

Thursday, July 10, 2014

Play-Hookey - Online Classroom

This Website is intended for those intrepid individuals who, for whatever reason, find themselves looking for a less than formal approach to useful education in a number of technical fields.

Play-Hookey - Online Classroom

Digital logic is at the core of all digital computers, and yet it is entirely based on three fundamental operations, designated AND, OR, and NOT. See how it's possible in these pages…..
These pages now include coverage of the major logic families as well as some practical experiments that you can perform with real components to see for yourself how they work.
  • DC Electronic Theory.
  • AC Electronic Theory.
  • Op Amps and Analog Circuits.
  • Take a look at optics.
  • What's inside these semiconductors?
Line Clock - Play-Hookey

Line Clock - Play-Hookey

"In many digital circuits, we need a regular and continuous train of pulses to control the timing of various circuits. In some cases, we want two separate pulse trains, one the inverse of the other. In other cases, we may want two square wave pulse trains in quadrature...."

(An Excellent Interactive Resource, Technically Accurate, Electronics Edutainment - delabs)

Contents

Basic Electronics
Basics of Electronics
Product Production
Work Discipline
Testing Points
Learning Electronics
Electronics Theory

Production Notes
Prototype Fabrication
Electrical Circuits
Electromechanical


Library
Scots Guide Electronics
Engineering - Wikibooks
Design Lab - Jim Svoboda
DC Circuits UOG
Socratic Electronics
Blobz Guide Electric Circuits


Product Design
Product Development
Constant Current Source
Good Voltage Regulators
Insulation Resistance
Digital Insulation Tester
DN Schematic PCB 04
DN Product Design 07


Hobby Circuits
VU Meter Circuits
LED brightness control
555 Incredible Chip
Process Control
liquid level measurement
Thermocouples and RTD
Design ADC Interface uC
Thermocouple Amplifier
IA Instrumentation 02
Temperature on DMM
Optical Proximity Switch
Analog Mux - Data Acquisition


Test Measurement
Instrumentation Automation
NI Test and Measurement
DMM Digital Multi Meter
Oscilloscope in T&M
IA Automation 01
Build Instruments
Tektronix T&M Equipment
Educators Corner – Agilent


Power Electronics
UPS Background
Transformer Connections
DN Power Electronics 03
DN Power Electronics 02
Half Bridge Convertor SG3525


Embedded
Interfacing Microcontrollers
Embedded Process Control
80C31 8052 Microcontroller
Microprocessors and uC
Embedded Systems Design

Components
Good Voltage Regulators
Relays and Contactors
Potentiometers Trimpots
Prototype Boards Types
Types of Capacitors
Types of Switches
Resistors How they Work
Coils Transformers SMPS
Mains Transformers Types
DN Components Selection 05

Tutor Gadgets
Count-Up Timer
Digital Logic Gates
Electronics Tutors

History
Teaching Instruments
Charles Proteus Steinmetz
Muntzing a Circuit Design
Teralab Electronics projects
Historical Instruments


Tables, Charts, Videos
Binary and Hex
Resistor Color Code
Ohms Law
Giga, Tera, Pico, Nano
High Resistance Materials

Analog
School - Analog Design
DN Analog Basics 06
DN Op-Amps 01
TI Semiconductors

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