Characteristics of JFETS

jojo August 28, 2018 9 Comments
You may also like : Field Effect Transistors (FET) and JFET-Junction Field Effect Transistors What is a Junction Field Effect Transistor? A JFET is a semiconductor with 3 terminals, available either in N-channel or P-channel types. It is unipolar...
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JFET-Junction Field Effect Transistor

jojo August 4, 2017 65 Comments
As already mentioned in Field Effect Transistors (FET) , JFET’s are of two types, namely N-channel JFETs and P-channel JFETs. Generally N-channel JFETs are more preferred than P-channel. N-channel and P-channel JFETs are shown in the figures below. Basic...
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Series Inductor Filter

jojo June 17, 2014 4 Comments
Series Inductor Filter.       In this arrange­ment a high value inductor or choke L is connected in series with the rectifier element and the load, as illustrated in figure. The filtering action of an inductor filter de­pends...
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RC filters-operation-circuit-diagram

jojo June 17, 2014 No Comments
The drawbacks of pi-filters are the comparatively larger cost, more weight, bigger size and external field developed by the series inductor. However, these drawbacks can be overcome by replacing the series inductor by a series resistor R. Such a...
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FET-Field Effect Transistors-Introduction

jojo November 12, 2013 1 Comment
Introduction to FET-Field Effect Transistor So far we have discussed the circuit applications of ordinary transistors, in which both holes and electrons take part. This is the reason that these are sometimes called the bipolar transistors. Such transistors have...
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Choke input-L section filter

jojo June 17, 2014 1 Comment
A simple series inductor reduces both the peakand effective values of the output current and output voltage. On the other hand a simple shunt capacitor filter reduces the ripple voltage but increases the diode current. The diode may get...
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Shunt capacitor filter

jojo June 17, 2014 7 Comments
Shunt Capacitor Filter and types of it: This is the most simple form of the filter circuit and in this arrangement a high value capacitor C is placed directly across the output terminals, as shown in figure. During the...
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Filter Circuits

jojo August 14, 2018 7 Comments
We have learnt in rectifier circuits about converting a sinusoidal ac voltage into its corresponding pulsating dc. Apart from the dc component, this pulsating dc voltage will have unwanted ac components like the components of its supply frequency along...
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Polyphase rectifiers

jojo December 19, 2013 1 Comment
Polyphase rectifier In polyphase rectifier we will be discussing in detail the working, the input and the output wave forms of a three phase half wave rectifier and three phase full wave rectifier, along with the connections of an...
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Full wave bridge rectifier

jojo July 31, 2018 26 Comments
A Full wave rectifier is a circuit arrangement which makes use of both half cycles of input alternating current (AC) and converts them to direct current (DC). In our tutorial on Half wave rectifiers, we have seen that a...
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