Operation of Zener Diode Voltage Regulator
July 18, 2016
A rectifier with an appropriate filter serves as a good source of d.c. output. However, the major disadvantage of such...
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pi filter Operation
July 18, 2016
The below Fig shows a typical capacitor input filter or π- filter. It consists of a filter capacitor C1 connected...
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Choke Input Filter Operation
July 18, 2016
The below Fig. shows a typical choke input filter circuit. It consists of a Choke L connected in series with the...
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Capacitor Filter Operation
July 18, 2016
Capacitor filter. Fig. shows a typical capacitor filter circuit. It consists of a capacitor C placed across the rectifier output in...
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What is a Filter Circuit ?
July 18, 2016
Generally, a rectifier is required to produce pure d.c. supply for using at various places in the electronic circuits. However,...
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Transistor as Amplifier
July 16, 2016
A transistor raises the strength of a weak signal and thus acts as an amplifier. The Below Fig shows the basic circuit...
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Working of NPN Transistor
July 15, 2016
The emitter-base junction of a transistor is forward biased whereas collector-base junction is reverse biased. If for a moment, we...
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Basics of Transistors
July 15, 2016
A transistor consists of two pn junctions formed by *sandwiching either p-type or n-type semicon-ductor between a pair of opposite...
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Comparison of Half wave Rectifiers and Full wave Rectifiers
July 12, 2016
Comparison of Half wave Rectifiers and Full wave Rectifiers
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Transistor Biasing
July 12, 2016
The below Figure shows a bias arrangement for both npn and pnp BJTs for operation as an amplifier. Notice that in...
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