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Turn-on and turn-off characteristics of an SCR are called the dynamic characteristics of the SCR. (a)    Turn-On Character­istic. The turn-on time charac­teristic shows the variation of current and voltage…

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Introduction to SCR-Silicon Controlled Rectifier As the terminology indicates, the SCR is a controlled rectifier constructed of a silicon semiconductor material with a third terminal for control purposes.…

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Comparison of  Thyristor and Transistor As already mentioned, transistors and thyristors are both semiconductor devices. They are now widely employed in switching operations because of their numerous advantages…

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Comparison between Thyristors and Thyratrons Before the discovery of thyristors, thyratrons were used for industrial control, but now they have been replaced by the thyristors because of the…

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Thyristor Family-Types of Thyristors The P-N-P-N devices with zero, one or two gates constitute the basic thyristor. But today the thyristor family includes other similar multilayer devices also.…

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General Introduction to Thyristors and its Applications Thyristor is the general name given to a family of semiconductor devices having four layers with a control mechanism, although this…

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JFETs and MOSFETs are quite similar in their operating principles and in their electrical characteristics. However, they differ in some aspects, as detailed below : JFETs can only…

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How to protect IGBT from failures and breakdowns ? Insulated Gate Bipolar Transistors are susceptible to gate insulation damage by the electrostatic discharge of energy through the devices.…

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Introduction to CMOS-Complimentary Metal Oxide Semiconductor FET’s Complementary metal oxide semi-conductor devices are chips in which both P-channel and N-channel enhancement MOSFETs are connected in push-pull arrangement. The basic…

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DE-MOSFET can be operated either with positive or negative gate, so its operating or quiescent point can be set at VGS = 0, as illustrated in figure. In…

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What is FET (Field Effect Transistor) FET, also called unipolar transistor is a transistor used to control the electrical behaviour of a device. FET has a very high…

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Unlike BJTs, thermal runaway does not occur with FETs, as already discussed in our blog. However, the wide differences in maximum and minimum transfer characteristics make ID levels…

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