Definition: Demultiplexer performs the reverse operation of the multiplexer i.e. it takes a single output and can guide that single output through many outputs. The output to which the input signal is to be passed is decided by the control logic. The control logic can be manipulated by changing the value of the control signal. Thus, it is termed as the demultiplexer as it takes one input and generates several outputs. There can be various types of demultiplexer circuits depending on the … [Read more...] about Demultiplexer
Difference between Amplitude Modulation and Frequency Modulation
Amplitude Modulation and frequency modulation, both are the type of transmission techniques for transmitting information from sender to receiver. But the similarities between the two ends here. Amplitude modulation involves the modulation of the carrier signal according to the amplitude of the baseband signal. However, the frequency and phase of the carrier signal will not be changed. On the contrary, frequency modulation involves the modulation of the carrier signal according to the … [Read more...] about Difference between Amplitude Modulation and Frequency Modulation
Difference between High Pass and Low Pass Filter
The major difference between high pass and low pass filter is the range of frequency which they pass. If we talk about high pass filter, so it is a circuit which allows the high frequency to pass through it while it will block low frequencies. On the contrary, low pass filter is an electronic circuit which allows the low frequency to pass through it and blocks the high-frequency signal. You might be thinking, what range of frequency is high and which is low? There is a term defined for … [Read more...] about Difference between High Pass and Low Pass Filter
Digital Multiplexer
Definition: Multiplexer is a combinational logic circuit which allows only one input at a particular time to generate the output. The signals which control which input will be reflected at the output end is determined by the SELECT INPUT lines. A multiplexer is often written as MUX in the abbreviated form. It is also called as Many-to-One circuit. This is because of its ability to select one signal out of many inputs. The MUX is a very crucial component of the communication system. This is … [Read more...] about Digital Multiplexer
Difference between Combinational and Sequential Logic Circuit
The major difference between combinational and sequential logic circuit is that the combinational logic circuit consists of only logic gates while the sequential logic circuits consist of logic gates and memory elements. Another crucial factor which differentiates combinational and sequential logic circuit is the state of output elements. The state of the output elements of the combinational circuit depends on only present state of the input elements. On the contrary, the output obtained from … [Read more...] about Difference between Combinational and Sequential Logic Circuit
Phototransistor
Definition: Phototransistors resemble normal transistor except the fact that the base terminal is not present in case of the phototransistor. Phototransistors convert the incident light into photocurrent. Instead of providing the base current for triggering the transistor, the light rays are used to illuminate the base region. The base terminal is made up of the material which shows sensitivity towards the light. The circuit symbol of the phototransistor is similar to that of the conventional … [Read more...] about Phototransistor
Difference between Half Adder and Full Adder
The major difference between Half Adder and Full Adder is that Half Adder adds two 1-bit numbers given as input but do not add the carry obtained from previous addition while the Full Adder, along with two 1-bit numbers can also add the carry obtained from previous addition. Half Adder and Full Adder, both are combinational logic circuit but differs in the way they process the inputs. A combinational circuit is one which does not consist of any memory elements; it comprises of only logic … [Read more...] about Difference between Half Adder and Full Adder
Difference between Thyristor and Transistor
A thyristor is a semiconductor device which possesses high ratings of voltage and current and also possesses the ability to handle large power. On the contrary, the transistor cannot handle large power equivalent to that handled by a thyristor. Moreover, the current and voltage rating of transistors is also quite low. Thus, power handling capacity differentiates both these devices. Although, thyristor and transistor both are the crucial devices for switching applications but still due to … [Read more...] about Difference between Thyristor and Transistor
Difference between Diode and Rectifier
A diode is a two terminal semiconductor device which allows the current to flow when it is forward biased and blocks the current when it is reverse biased. Rectifier is a circuit which consists of a diode which has higher current carrying capability and thus used for rectification of AC signal.The major difference between diode and rectifier is that the diode is a device which becomes short circuit when it is forward biased and open circuit when it is reverse biased. On the contrary, a … [Read more...] about Difference between Diode and Rectifier
Difference between Thyristor and Thyratron
The main difference between thyristor and thyratron is that the thyristor is current controlled device while a thyratron is a voltage controlled device. The thyratron is a large tube filled with gases such as mercury, xenon, hydrogen etc. and the conduction increases due to ionization of these gases. The thyristor is a semiconductor device while the thyratron is the voltage controlled device. Although the thyristor and thyratron both are three terminal devices still the construction of the … [Read more...] about Difference between Thyristor and Thyratron