UJT relaxation oscillator (Sweep circuit with UJT switch)
Construction of UJT relaxation oscillator The sweep circuit can be obtained with the help of unijunction transistor (UJT). The capacitor (C) start charging through the resistor (R) till the capacitor reaches the maximum voltage level VP, when
Difference between Ideal diodes and Practical diodes
Difference between Ideal diodes and Practical diodes Ideal diodes Practical diodes Ideal diodes act as perfect conductor and perfect insulator. Practical diodes cannot act as perfect conductor and perfect insulator. Ideal diode draws no current when reverse
Application of insulated gate bipolar transistor (IGBT)
There are some application of insulated gate bipolar transistor (IGBT) are, The insulated gate bipolar transistor (IGBT) is used Ac and DC motor drivers. The IGBT is used in unregulated power supply (UPS) system. The IGBT is
Working of IGBT(Insulated gate bipolar transistor)
IGBT stands from Insulated gate bipolar transistor. It is a three terminal semiconductor device is named as gate, emitter and collector. The terminals of the IGBT are associated with a conductance path and gate terminal is associated
What is IGBT(Insulated gate bipolar transistor)?
Insulated gate bipolar transistor or IGBT, is a solid state devices primarily used as an electronic switch which, as it was developed, came to combine high efficiency and fast switching. IGBT is a switch that is used
VI characteristic insulated gate bipolar transistor
The V-I characteristic of an insulated gate bipolar transistor (IGBT) shows the plot of collector current IC versus collector emitter voltage VCE for various values of gate emitter voltage. It is similar to the shape of the
Applications of unijunction transistor (UJT)
There are some application of unijunction transistor (UJT) are, The unijunction transistor (UJT) used as relaxation oscillator. It is used as voltage detector. The UJT is used for switching. It is widely used as triggering device for
Advantages and disadvantages of insulated gate bipolar transistor (IGBT)
There are some advantages of insulated gate bipolar transistor (IGBT) are, The insulated gate bipolar transistor (IGBT) is easy to turn ON and OFF. The switching frequency is higher than that of power BJT. It has a
V-I characteristic of unijunction transistor (UJT)
The unijunction transistor characteristic is shown in below figure, The emitter voltage VE is applied between emitter E and base B1. VE is positive with respect B1. Let increasing this voltage from zero. The P-N junction is
Application of transformer
The transformer used for impedance matching. The transformer used for isolate two circuits electrically. It is used to increase or decrease the alternating voltages in electric power applications. The transformer used in voltmeter, ammeters, protective relay etc.