Basic Electronics

Atom Energy Levels

An Atomic Model Our present model of the atom is based on the concept of energy levels for electrons within an atom and on the mathematical interpretation of detailed...

Bohr`s Atomic Model

Bohr Atomic Model : In 1913 Bohr proposed his quantized shell model of the atom to explain how electrons can have stable orbits around the nucleus. The motion of...

PhotoTransistor

Phototransistors are solid-state light detectors with internal gain that are used to provide analog or digital signals. Phototransistors are used in almost all electronic devices that depend on light...

PhotoDiode

A photodiode is a semiconductor device that converts light into current. The current is generated when photons are absorbed in the photodiode. A small amount of current is also...

Photovoltaic cell/Solar cell

Photovoltaics is the direct conversion of light into electricity at the atomic level. Some materials exhibit a property known as the photoelectric effect that causes them to absorb photons...

Regulated Power Supply

A regulated power supply can convert unregulated an ac (alternating electric current or voltage) to a constant dc (direct electric current or voltage). A regulated power supply is used...