When a conventional geared DC motor is connected directly to the output of the ICs such as Atmega16, microcontrollers, 555 timers, and 74 series ICs the motor might get damaged. Because these ICs cannot provide at least 250mA of current required for the DC motor. Therefore, to drive the DC motor, a circuit (with transistors or relays or L293D/L298) is needed that can work as a bridge between the motor and the IC. Hence, the manufacturers and hobbyists use several IC motor driver modules in … [Read more...]
What is 555 Timer IC – Working with Operating Modes
The IC 555 timer was invented by “Signetic Corporation” and it was termed as SE or NE555 timer. Generally, it is a monolithic timing circuit that gives precise and highly stable delays of time or oscillation. These types of ICs are very cheap and reliable in cost when we compared with the OP-Amp applications in the same areas. These ICs are used as an astable and monostable multivibrators in digital logic probes, DC-DC converters, tachometers, analog frequency meters, voltage regulators, tem … [Read more...]
What is a Comparator – Types & Its Working
Comparators are classified into various kinds, such as electronic, electrical, mechanical, optical, sigma, digital and pneumatic comparators, these are used in various applications. Comparators play an essential role in designing electrical and electronic projects. In electronic circuits, an op-amp is used with negative feedback and it can also be used as a comparator. The comparator is mainly designed without feedback for open loop configuration. These are widely used in A/D converters. When … [Read more...]
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