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delabs Circuits

delabs and dapj Websites which include some Tech Blogs are centered around Electronics Engineering Technologies. The Focus is on Product Design, Instrumentation and Automation.

Electronic Circuits and Schematic Diagrams contain the designs with some notes.

delabs Content Map - delabs Content Map 2

Solderman's Basic Electronics can help learn practical electronics and has Instrument Photos, Production, Testing and Calibration Documents. Hobby DIY Garage has many Do-It-Yourself Electronic Projects.

Circuits FAQ has Electronics Design Notes and Answers. delabs design devices and Schematics of delabs are a repository of my experience as a Product Designer and Manufacturer. 

Anantha Narayan Innovative Elektrotech














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delabs Technologies Hyper Embedded delabs Schematics delabs Design Devices

Electronic Engineers and DIY Enthusiasts

FC's  Electronic Circuits - Forrest Cook, Ham Radio, Solar Power, FM Radio Circuits.

ePanorama - Tomi Engdahl, Electronics design and EE Technology Resource.

KeelyNet - Free Energy, Gravity Control, Electronic Health & Alternative Science.

Sam Electronic Circuits - Audio Video & Vacuum Tube Circuits. Amplifiers, Timers.

eServiceInfo.com - Service manuals, IC Applications, Chip Datasheets, Firmware.

PackRat WorkShop - Lee Bell's Alternate Energy Ideas, Mechanicals, Robot Design.

RepairFAQ-Sam - Repair, Service and Maintenance of Electronic Products, Lasers.

Power Supply Guide - SMPS, Switching Power Supply, Magnetics, Power Inverters.

Electronics Lab -  Free Electronic Projects, PCB and Hobby Circuits, Electronic Kits.
Electronic Components
Mains Power Transformers
Resistors and Types
Coils Transformers SMPS
Relays and Contactors
Types of Switches
Types of Capacitors
Potentiometers Trimpots

Basic Electronics

Digital BCD counter
Astable 555 Timer
LED Running lights
Basic Electronics
555 Timer Circuits

Microcontroller Projects
80C31 SBC
Embedded Controller
ICL7135 and 89C51
MCS-48 and 80C39

Digital and Interface
Digital Timers Counters
Printer Port, 256 Relays.
Control Interface PC
Analog Interface PC

Instrumentation
Instrumentation
Function Generator
Insulation Tester TeraOhm
DMM digital multi meter
Voltmeter Attenuator
LM3914 analog display
Autoranging 4-1/2 DVM

Industrial Automation
Process Control
Mini RTD Transmitter
4 to 20 mA Transmitter
Sequential Timer
Timer Counter Modules
V/I Converter LM723

Power Supplies
Power Electronic Circuits
Power Supplies Section
Battery Charger L296
Battery Level Indicator
Electronic Product Design
Materials and Equipment

Engineering and Technologies


Electronic Projects PCB and Circuit Diagrams
Important Pages for EE and Electronic Product Development

Specialized Tuned Search

The Custom search engines are at dapj Electronics

Electronics Product Design

When you wish to learn Electronics, first a short study of Physics is essential, secondly some Electronics theory. Then build simple and small gadgets to learn Practical Electronics while working with Educational Hobby Circuits.  Lastly to make your own product designs, a fundamental knowledge of Analog and Digital Electronics is the foundation for your next steps into Engineering a Design.   DC Regulated Power Supply

Applications and Components

The basic building blocks for most circuits are Chips or ICs. You can acquire considerable knowledge by studying Application notes of National Semiconductor and Texas Instruments, to start with. When you want to use a Microprocessor or Build Microcontroller Projects, you can study the documents at Atmel and Microchip to begin. The Specifications and Behavior of Passive Components like inductors, capacitors and Resistors; Discrete Semiconductors; Power Devices - eg. IR and RF Components have to be understood well, in order to design sturdy Industrial Grade Designs like ST Micro.

Advanced Engineering

The Technology related to the equipment used for Testing, Troubleshooting and Calibration is called Test & Measurement, Here we use Test Instruments like Oscilloscopes and Digital Multimeters. Medical Electronics and Military Designs require more meticulous, robust and dedicated designs with higher reliability and accuracy. In Medical electronics product safety is vital, Consumer products should be affordable without compromising Human Safety factors. Then you need to look into Usability or Ergonomics, which is a science that helps us develop practical and cost-effective products, which have an optimum Man-Machine Interface. EMI, ESD, RFI are other important aspects that deals with Electromagnetic, Electrostatic and RF; Noise and Interference; in the Stable performance of products in Real World Harsh Environments or the Reliable Transmission of data. Lastly Computing and Communication makes products more versatile in any application. EDA, Technical Computing and Systems Engineering helps creating products and complete process solutions.

Industrial Automation and Process ControlTacho Counter

Automation and Control is the predecessor of Robotics and Mechatronics. A Jump Start, Practical and standard reference for Process Control is at at Omega Technical Reference.

A Control system is made of Sensors sending acquired data to a Controller which operates Actuators to manage the process in Real Time. Starting from a Bimetal Thermostat to a SCADA, the controller has grown from mechanical -- electrical -- analog -- digital devices to microcontroller-computer based equipment.

Both in Control Systems and Robotics the Collaboration between Robots or Control Units, leads to the development of wireless network of Interactive, Intelligent and Distributed Self Governing Systems. The outcome is Web Process Automation, Web Applications based Solutions in Monitoring, Analyzing and Configuring these Sophisticated Networked Systems.

About delabs

delabs maintains an Electronics Circuits Archive with some Technical Documents, many of these circuits were designed or developed by me. There are also many links to useful electronics, freeware and open source websites. The intention to put it in the web is to enable Students, Hobbyists and Professionals to get more ideas on various aspects of  electronics and circuit design. The Links Directory of delabs includes Companies, Service Manuals, Datasheets and Application Notes.

The Technologies and Hardware Configurations of delabs are Open Designs. delabs created content and circuits, can only be used for product design, product development, study or hobby.

Tera Ohm MeterThe delabs name is for the websites and content managed by me. My experience is in the design of custom industrial and instrumentation products. delabs plans to be a web-service for product design and development. I like to work on projects related to Electronics and Internet.

The product shown on the left is a Insulation Tester and a Tera Ohm Meter. It was the first product i designed many years ago. A DC regulated  Test bench Power supply, a later creation of mine is shown above.

If you wish to meet me in person, discuss online or talk, then contact me by mail, to start.

Anantha Narayan delabs


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Disclaimer and Terms of usage
The documents, software, tools and links are provided to enhance the ability of an electronics student, hobbyist or professional by sharing information. The information, links etc. should be used by the website visitor, at his or her own risk and responsibility. There may be concept, design and link errors in the pages. My Creative Work, ideas and documents can be used for Product Design and Development by R&D Engineers, Hobbyists, Students and even firms for creating useful products. These cannot be used for reprint, replication or publishing online or offline.

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