General Topics

This area cover all general topics of electronic theory, types of devices, use of circuits, Elementary Electronic Questions, Microelectronics, tools, Microcontrollers, power electronics, analog circuit design, small projects and problems.

What is the use of substrate in FET and MOSFET?

A finer question would be what is the purpose of the substrate in a semiconductor device? and the answer is that is the foundation on which you fabricate a chip. Let’s understand in details on use of substrate in FET and…

What is better than LED lights? what will replace led lights?

LED lighting would be the white laser technology that could replace LED lighting in the architectural lighting and automotive (headlamp) sector in the future. BMW has already used the White Laser technology for the use of I8 car headlights. Also,…

Can we harness energy from lightning?

With current technology, you can not use flash energy as an electrical energy source. Simply because lightning has a tremendous amount of energy and it is very difficult to collect that energy because when lightning strikes, it generates six times…

What are the benefits of JFET over BJT?

Jfet is usually a depletion mode device (active device when no gate bias is applied). which makes them still very useful in simple discrete circuits – in particular – automatic gain feedback mechanisms (AGC). This technology is used in some…

Does the fuse consume power or current?

 fuse consume power or current. It does not consume power it is just an electrical device that senses the current flowing in the circuit and will protect the healthy circuit from wrong.Said fuse means melting. if the current flows over…

Fuse wire is always thin why?

Fuse wire is always thin. the fuse is just another cable in the electrical circuit designed to melt when the current flowing through it crosses the current threshold in other words the fuse is the current protection device. For example,…

How does synchronous motor start?

 synchronous motor start. Synchronous motor is basically an ac generator that works in reverse and built equal.They require dc excitation to the rotor pole and phase 3 supply to the stator.They do not start on their own, therefore require some…

Why do we need zero crossing detectors in some circuits?

 need zero crossing detectors in some circuits. Zero-crossing is the instantaneous point at which no voltage is present. in a sine wave or other simple waveform, this usually occurs twice during each cycle. but because of some noise or noise…

Why do not we apply a continuous signal rather than a pulse to the thyristor gate?

 We do not apply a continuous signal rather than a pulse to the thyristor gate. We trigger scr using the pulse output of the trigger circuit for the following reasons: Using a continuous signal would mean that scr would be…

Current

Electricity is the actual movement of electrons through the conductor. Regarding the Water hose, electricity is the water flowing through the hose. So that the current flows, There has to be a complete path. When the circuit is interrupted, no…

Voltage

The Voltage is described as a thrust behind the electricity. Stress can be too referred to as potential difference, electromotive force (EMF) or electrical pressure. Imagine electricity as water flowing through a hose. The pressure (Voltage) is what causes the…

What is the difference between JFET and MOSFET?

Difference between jfet and mosfet Lets understand about difference between JFET and MOSFET, Main difference is current control and voltage control in circuit. First need to know what is Field Effect Transistor (FET) use and what is use of Metal-oxide semiconductor field-effect…

What is a diode for a doorbell?

Doorbell diode The included diode with your video ringing ring is used to connect the device to a digital sound of the sound. Digital sound signals are usually a speaker for sound output, while mechanical bells have a physical mechanism…