Indirect Synthesizer: Indirect Synthesizer: The required frequency range in most synthesizers nowadays is obtained from a variable voltage-controlled oscillator (VCO), whose output is corrected by comparison with that of a…
Automatic Frequency Control Block Diagram: Automatic frequency control: As previously we see, the heart of an AFC circuit is a frequency-sensitive device, such as the phase discriminator, which produces a…
Temperature Control System: Before going to study the temperature control system, let us see the block diagram of microprocessor based process Temperature Control System. It is capable of controlling more…
Process Control Block Diagram: The primary objective of industrial process control is to control physical parameters such as temperature, pressure, flow rate, level, force, light intensity, and so on. The…
Interfacing Dip Switch: A series of tiny switches built into circuit board and the housing for which has a same shape as chip are known as DIP switches. The Fig.…
Types of LCD Displays: The Types of LCD Displays are one of the most fascinating material systems in nature, having properties of liquids as well as of a solid crystal.…
18 Segment Display: The Fig. 15.5 shows the 18 Segment Display. They are used to display numbers and alphabets. Like 7-segment displays, 18 Segment Display are also interfaced through 8279…
Interfacing ICs Articles: Features of 8255 Microprocessor: Here we see programmable peripheral interface (PPI), 8255, designed by Intel. It is a general purpose programmable I/O device used for parallel data…