Operational modes of a 555 timer

operational modes of a 555 timer

Introduction to the operational modes of a 555 timer A 555 timer is one of the most used integrated circuits for most electronic projects. In this chapter, we would discuss in detail all the operational modes of a 555 timer. It functions in different circuits as either a switch, a flip-flop, or an oscillator. A … Read more

How diodes work


Introduction to diodes Diodes are electronic components that allow current to flow in one direction but not the other.  Most common diodes have two leads. Some are clear with reddish-orange on the inside and a black stripe on one end while others are black with a silver stripe on one end. The stripe indicates which … Read more

How transistors work


Introduction to transistors A transistor is an active electronic component that can be used for amplification or switching circuits. The basic type of transistor is the bipolar junction transistor. Bipolar junction transistors (BJT) Bipolar junction transistor is similar to diodes. Diodes have a PN junction while BJTs have two (2) PN junctions. BJTs are essentially … Read more

How an operational amplifier works

operational amplifier

Introduction to operational amplifiers An operational amplifier also referred to as an op-amp is a high gain Dc voltage amplifier, meaning it can use a very small voltage difference between its input to control a much larger voltage at its output usually 100 thousands of times larger. operational amplifiers come in different package types and … Read more