L293d bridge is controlled by external low voltage signals. H-Bridge is an electrical circuit that enables the load in a bidirectional way. L293d IC is known as a motor driver. It is a low voltage operating device like other ICs. The other ICs could have the same functions like L293d but they cannot provide the high voltage to the motor. L293d provides the continuous bidirectional Direct Current to the Motor. The Polarity of current can change at any time without affecting the whole IC or any other device in the circuit. L293d has an internal H-bridge installed for two motors. But after the invention of the ICs DC motor again start gaining its popularity. The usage of AC motor became very much popular in the 20th century. DC Motor in the late 19th century has its own use but after the discovery of AC motor by Nikola Tesla and a wide amount of usage of AC current in industry and houses. The DC motor was the first motor used by the scientist to convert the electric current to rotatory motion. It also shows that we can produce the magnetic field and motion by combining one of each with the current.Īfter the invention of right-hand rule, a DC motor was invented by British scientist William Sturgeon. The right-hand rule was invented in the 19th century and it shows that we can produce current by combining the magnetic field and motion by following some specific rules. In the 19th century, the scientist started discovering/inventing some ways of producing current and motions when British physicist John Ambrose Fleming invented the right-hand rule. Both motions have their importance in machines and our life.
There are multiple kinds of motion we face in our daily life some are linear some are rotatory motion.
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