Symmetric Three Phase Electric Current Flow Animation
Current flows from a three-phase generator on the left, represented as three Y-connected single-phase sources, via a transmission line into a symmetric Y-connected load on the right. The phases…
Three Way Electrical Switch Working Animation
Three Way Electrical Switch Alternative to the conventional connection for a three-way switch. The lamp shell is never connected to the live terminal. A second lamp can be connected at…
Electric Bell Working animation
Electric Bell  : How it works: 1. The button at the top (K) is closed. 2. Current flows through the solenoid (E). This produces a magnetic field. 3. This pulls…
PIN Diode Working Principle
The pin diode consists of heavily doped p and n regions separated by an intrinsic (i) region, as shown in Figure (a). When reverse-biased, the pin diode acts like a nearly…
Power Supply Circuit Fault Analysis
In some cases, after isolating a fault to a particular circuit, it may be necessary to isolate the problem to a single component in the circuit. In this event, you have…
Tunnel Diode Working Principle
A tunnel diode or Esaki diode is a type of semiconductor that is capable of very fast operation, well into the microwave frequencyregion, made possible by the use of the…
Basics of Voltage Regulator
Voltage Regulator The 78XX series of linear voltage regulators provide positive fixed output voltages for a range of values. The last two digits in the part number indicate the output…
