Saturday, January 28, 2017

3 Phase Induction Motor Speed Controller Circuit using NE555 IC

Electronic Kit School. - There are many electronic circuit design to give best result now for motor speed controller. One electronic circuit of induction motor speed controller, 3 phase which designed is look like in Figure 1 below.

The main component to controller this motor is NE555 IC which popular today. In this time, beside we will show you the circuit, here we also will show you component part and global description about this circuit.

Circuit 

  1. NE555 IC
  2. Resistors
  3. Capacitor
  4. Diodes
  5. Optocoupler MOC IC
  6. Thyristor
Description

Circuit like in Figure 1 above show you about the 3 Phase Induction Motor Speed Controller using NE555 IC. From Homemade-Circuits site describe that when it comes to controlling the speed of induction motors, normally matrix converters are employed, involving many complex stages such as LC filters, bi-directional arrays of switches (using IGBTs) etc.

All these for ultimately achieving a chopped AC signal whose duty cycle could be adjusted using a complex microcontroller circuit, finally providing the required motor speed control. However according to me the same can be accomplished through a much simpler concept using the advanced zero crossing detector opto coupler ICs, a power triac and a PWM circuit.

Thanks to the MOC series of optocouplers which has made triac control circuits extremely safe and easy to configure, and allow a hassle free PWM integration for the intended controls.

Sunday, January 15, 2017

Electronic Circuit Software: CadSoft Eagle Professional 7.7.0 Full Version for Windows - Free Download

ElectronicKitSchool. - One version of Cadsoft Eagle professional is CadSoft Eagle Professional 7.7.0 Full Version for Windows. This is electronic software that useful for you who want to design PCB layout from electronic project design finally. This software called with Cadsoft EAGLE for Windows system.

Read also: Download Cadsoft Eagle 7.6.0 Full Crack for Windows

Image Courtesy of Google Image

In this article we will give you global overview about Cadsoft EAGLE software, and then we will give you link to take free download CadSoft Eagle Professional 7.7.0 Full Version for Windowsaccording that we given to you freely.

Overview

Accordingly MaterKreatif blog describe that CadSoft EAGLE (Easily Applicable Graphical Layout Editor) also know as Eagle PCB is a powerful PCB Design Software ranging from creation of the schematic diagram, to design a printed circuit board with high resolution. CadSoft EAGLE has three modules: Module Schematic, Layout Editor, Autorouter. This program has a great library contains a number of standard electronic components and quite common as a microcontroller, this is relatively easier for you to design a PCB design

Features:
  1. Design the most up-to-date devices from leading manufacturers
  2. Import/export of simulation symbols (without packages)
  3. Integrate parts into your schematic with precision
  4. Minimize redesign and shorten design time
  5. Price your entire bill of materials
  6. Simulation tool for signal integrity analysis
  7. Rotate and zoom in 3D EAGLE model, and many more.
What’s new in in EAGLE 7:
  • Allows to export IDF of the circuit board
  • Exact 3D models of the individual components
  • New autorouter for multicore processors
  • Run multiple configurations simultaneously
  • Classic and modernized icon, and more.
Download Software

And now you can click the icon link below to continue download CadSoft Eagle Professional 7.7.0 Full Version for Windows from external source.

CadSoft Eagle Professional 7.7.0 Full Version for Windows

Tuesday, January 3, 2017

Intelligent Trailing Switch Circuit using Triac

Electronic Kit School. - There are many electronic switch using design to give best result now. One electronic circuit switch which designed is intelligent trailing switch based on Triac component like in Figure 1 below.

Beside using Triac in this circuit also using diode as rectifier to rectify AC source from 220VAC input. In this time, beside we will show you the circuit, here we also will show you component part and global description about this circuit.

Circuit 

  1. Diodes
  2. Socket
  3. Resistors
  4. Capacitor
  5. Triac TIC225M
Description

Circuit like in Figure 1 above show you about the Intelligent Trailing Switch Circuit using Triac. From Circuitstoday site describe that this is a very simple yet effective circuit in which the equipments connected at the so called trailing sockets will run only if the equipment connected at the control socket is switched on. For example, let’s connect a motor is connected to the control socket and a lamp is connected at the trailing socket. The lamp will glow only when the motor is running.

When the load connected at the control circuit is switched on, the load current flows through the diodes and as a result there will a voltage drop across the diodes. This voltage drop is sufficient enough to switch on the sensitive triac T1 and the equipments connected at the trailing sockets gets power supply. The components R2 and C1 forms a snubber circuit which protects the triac from transient fluctuations.

Almost all equipments like motors, drills, blenders, fan, old TV, radio, amplifiers etc can be connected at the control socket. In case of modern TV, computers, amplifiers, etc the power switch does not completely isolate the equipment and the equipment will draw a small amount of current in the standby mode which is sufficient enough to trigger the triac . Such equipments cannot be used on the control socket because it makes the trailing equipments ON even if the control equipment is OFF.