Binary Number System | Basics | Definition

Binary Number System

Definition: Digital electronic circuits can be made to act in only two states: on and off. This two-state system is called a binary number system. This system can be compared to a single-pole, single-throw (SPST) switch, Figure 1. A switch in the off position represents a 0 in the binary …

Read More »

Diac & Triac | Basics | Characteristics Curve

Diac and triac are two devices, usually used together for current control in AC circuits. The names are made based on “diode for AC” and “triode for AC.” Although you now know about solid-state diode, the counterpart of that in vacuum tubes was also called diode; a tube with two …

Read More »

Diode | Working Principle | Construction

diode symbol

Definition: A diode is the simplest semiconductor component. It is made of only two pieces from different semiconductor materials. Nonetheless, you may find diodes in almost all electronic circuits. Diode Working Principle Its function is to let electric current flow in one direction but to prevent flow in the opposite …

Read More »

Diode Characteristic Curve Explanation

Diode Characteristic Curve

A typical characteristic curve for a diode is shown in Figure 1. This curve shows the variation of the diode current versus the voltage across the diode. On the right-hand side of the vertical axis (the current axis), a diode is forward biased because the voltage applied across it is positive. …

Read More »

Wound Rotor & Squirrel Cage Induction Motor Theory

Wound Rotor & Squirrel Cage Induction Motor Theory

Asynchronous machines are more known as induction motors because their principle of operation is based on induction. Recalling Faraday’s law, if a wire is moved in a magnetic field, then a voltage difference is generated between its two ends. We may also say a voltage or an electromotive force is induced …

Read More »

Single-Phase Transformer | Construction | Theory

single phase transformer.

In the same way that single-phase AC and three-phase AC are different, although both are alternating current electricity, single-phase and three-phase transformers cannot be interchanged. Nevertheless, most of what can be said for single-phase transformers is later on extended to three-phase transformers because they work based on the same principle. …

Read More »

Resonance in Series and Parallel RLC Circuit

rlc circuit resonance

In any AC circuit consisting of resistors, capacitors, and inductors, either in series or in parallel, a condition can happen in which the reactive power of the capacitors and of the inductors become equal. This condition is called resonance. Simultaneous with the capacitive reactive power and the inductive reactive power being …

Read More »