Basic Electronic Components

The point of this tutorial is to provide the reader with a essential concept of the physical structure of individual electronic components.

Resistors

A resistor, as the name tells us, is electronic device resists (or opposes) current flow in a circuit.

Read More!

The Hidden Cameras for Security

The CCTV digital camera, hidden cam, spy digital camera, secret digital camera or house movie monitoring digital camera is a digital camera that is hidden as another item. These little digital cameras have remarkable quality, yet are little enough to cover up in a radio, smoke detectors, reflection or many other familiar things that would be in a room. Hidden Cameras can be used not only in the property, but over the counter or industrially as video digital cameras.

Today a hidden cameras can record movie for watching later or connected to the world wide web for watching from anywhere in the world at real-time. To get connected to the world wide web you simply need a little system called a USB DVR - Digital Video Recording unit. This system joins directly to your digital camera and your computer to make your movie available online. An IP Camera does not require a USB DVR, but is hard to cover because of its size.

Read More!

Frequency Domain Curve-Fitting FDCF

Frequency domain curve-fitting is useful technique to fit a TFM very close into the observed FRF data. FDCF is a two-step procedure, which includes the model structure selection and model parameter optimization.

Read More!

Direct Current Density

Current is known as the flow of charge. By inheritance, the direction of this flow is with the movement of positive charge. The amount of charge δQ flowing through (that is, perpendicular) to a surface, in time δt is given by the formula

Read More!

Structure and Working Liquid-Filled Transformers

A liquid-immersed transformer is composed of a magnetic core and coil assembly immersed in a fluid, which is normally a mineral oil. The fluid must have firslty good heat transfer characteristics and secondly electrical insulating characteristics.

Read More!

Power Systems Steady-State Analysis

In steady-state analysis of power systems, any transients from disturbances are considered to have settled down, and the system state is considered as unchanging. Particularly, system loads including transmission system losses, are closely matched with power generation so that the system frequency is becomes constant.

Read More!

Description and Use of Transformers

A transformer is a static device and it is commonly used all over the world for transforming electric energy from one circuit to another magnetically (that is, by induction rather than by way of conduction). usually, this transformation is accomplished b/w circuits of different voltages but having same frequency

Read More!

State-Space System Realization SSSR

System realization is a method to find out an internal state-space description for a system given with an external description, normally its TFM or impulse response.

Read More!

Objectives of Power System and Operation and Control

The main objective of power system operation is providing  power to consumers meeting strict tolerances on voltage magnitude and frequency. consequently,

Read More!

Equivalent distributed Circuit

We can easily symbolized TEM mode in a transmission line by the equivalent circuit, shown in dia4.7 below, for a length Az. Physically, it is said to be  distributed circuit because the circuit parts are not lumped at separate locations as in a conventional low-frequency circuit rather they are distributed uniformly along the length of the line. Thus, we can define the elements on per-unit-length basis.

Read More!

Metal-Oxide-Silicon Capacitor

The metal-oxide-silicon (MOS) capacitor locates in the center of the complementary metal-oxide-silicon (CMOS) technology. MOSFETs place reliance on the very high quality of the interface between SiO2, the standard gate dielectric, and silicon (Si). This tutorials provides the detailed understanding of the MOS capacitor which is helpful in understanding the MOSFETs

Read More!