Electronic Circuit Design

DC Motor Speed Control

Posted by on Aug 29, 2017 in Motor-Control, Power-Circuits

The following was submitted on February 1st, 2006 at 08:49AM (PST).- Subject: delabs Schematic Source Request. Circuit: speed motor control dc

mail from MD

Study Resources Below

Speed Controllers - The purpose of a motor speed controller is to take a signal representing the demanded speed, and to drive a motor at that speed.

FC's Pulse Width Modulator Circuits - Power your PWM circuits with solar power by using a CirKits solar kit.

DC Motor Speed: Simulink Modeling - A common actuator in control systems is the DC motor. It directly provides rotary motion and, coupled with wheels or drums and cables, can provide translational motion.

arduino-motor

Arduino/Motor Control - DC Motor Tutorials, Servo Motor Tutorials, Stepper Motors.

delabs

Fuzzy Logic and Control Systems

Posted by on Aug 28, 2017 in Logic-Circuits

Could you tell me more about Fuzzy logic control, kindly share the web resources with me. Thanks.

mail from MA

some fuzzy logic control Resources in the web

The Fuzzy Logic Concept

The way that people think is inherently fuzzy. The way that we perceive the world is continually changing and cannot always be defined in true or false statements.

Fuzzy Logic in Industrial Automation

In recent years, fuzzy logic has proven well its broad potential in industrial automation applications. In this application area, engineers primarily rely on proven concepts.

Fuzzy Logic Introduction

Fuzzy logic starts with and builds on a set of user-supplied human language rules. The fuzzy systems convert these rules to their mathematical equivalents. This simplifies the job of the system designer and the computer, and results in much more accurate representations of the way systems behave in the real world.

Fuzzy Logic - Omega

Fuzzy Logic is a particular area of concentration in the study of Artificial Intelligence and is based on the value of that information which is neither definitely true nor false.

Tutorial On Fuzzy Logic Jan Jantzen

A logic based on the two truth values 7UXH and )DOVH is sometimes inadequate when describing human reasoning. Fuzzy logic uses the whole interval between 0 ()DOVH ) and 1
(7UXH ) to describe human reasoning. As a result, fuzzy logic is being applied in rule based automatic controllers, and this paper is part of a course for control engineers.

Fuzzy Logic Stanford

It focuses on logics based on a truth-functional account of partial truth and studies them in the spirit of classical mathematical logic

delabs

Build RFID transmitter and receiver

Posted by on Aug 12, 2017 in Home-Office-Automation

Guide on how to build my own RFID transmitter and receiver?

Post by C1

You will find them here ...some entities misuse this technology, hence people have become less interested in this as it is invasive. Properly used this technology is an asset, example - inventory or asset tracking and management.

RFID Circuits - DiscoverCircuits.com - Low Power RFID Transponder - For some time railroad companies have been wrestling with the problem of tracking rail cars.

rfid

Fall 2004 RFID Honors Project - RFID can be categorized as low frequency or high frequency and as passive or active. This project looks mainly at low frequency passive RFID because it is the least expensive and the most common.

Low frequency passive RFID works by magnetic induction. A reader device generates an alternating magnetic field from a coil of wire. A tag also has a coil of wire that induces current from the magnetic field. This current provides power to the passive tag. The tag then sends back its own varying magnetic field which is read by the reader device.

delabs
This is an answer of mine to an old post - Tuesday 27 June 2006

Continuity Tester

Posted by on Jul 21, 2017 in Small-Instruments

Question - i want a continuity tester circuit or get one.

mail by RB

Here are some pages that might help

Simple Component and Continuity Tester - This simple project may be used for testing components, as well as checking circuit board tracks, wires and connections for continuity (conduction). It tries to pass a small current through the item being tested and the LED will light brightly, dimly or not at all according to the resistance of the item.

POPTRONICS Continuity Tester - This is another invaluable piece of test equipment for digital work. It has been designed by us to cater for a particular application . . . servicing digital projects sent in for repair.

Continuity Tester, Smart - A tester by Tony Van Roon. This uses a 741 opamp and works off a dual supply and hence rather complex but more accurate. This may need some design changes too.

Silicon Chip Online - A Programmable Continuity Tester - Let's face it, almost every analog and digital multimeter does have built-in capabilities for testing continuity. However, this function is somewhat limited.

It would be a good idea to buy one like this

ct6101-sperry-tester

Heavy-Duty Continuity Tester CT6101- The Continuity Tester is very easy to use and is used to test for breaks in non-energized wires or cords. Continuity has a bright 360 degree visual indicator located near the tip along with a flexible lead for ease of use.

Simple Battery Characterizer

Posted by on Jul 20, 2017 in Rechargeable-Battery

I was reading about some IC's from Maxim/ Dallas saying " Simple battery characterizer" for plotting a charging/ discharging cycles & graphs are available on computer for study I want to plot an extensive data of these batteries.

From MO