The batteries are available with some specific terminal voltages. e.g. 1.5V, 6 V, 12 V, 24 V, 48 V etc. If we want to have some terminal voltage other than these standard ones, then series or parallel combination of the batteries should be done. One more reason for connecting the batteries in series or parallel […]
Series and Parallel Connection of Batteries – Theory, Diagram & Formula Read More »
Thermistor or Thermal Resistor is a two terminal semiconductor device whose resistance is a temperature sensitive.
What is Thermistor? Working Principle, Symbol, Definition, Meaning & Diagram Read More »
The cuk converter is dc to dc converter gives an output voltage which is less than or greater than the input voltage with a polarity reversal. That means, the polarity of output voltage is opposite to that of the input voltage. Figure 1 shows the cuk converter using BJT.
A TCR is a thyristor controlled inductor, connected in shunt with the line, in which the thyristor valve is controlled by partial conduction, in order to continuously vary the effective reactance of the line. TCR is a Variable impedance type static VAR generator, in which the reactor current can be varied by applying the firing
What is Thyristor Controlled Reactor (TCR)? Working Principle & Diagram Read More »
The Open Circuit and Short Circuit Test on Transformer can be used to determine the efficiency and regulation of a transformer at any predetermined load for that we do not have to actually load the transformer. The parameters of the equivalent circuit of a transformer can be obtained by using the open circuit (O.C.) test
Open Circuit and Short Circuit Test on Transformer – Experimental Set-up & Procedure Read More »
A Static VAR Compensator (SVC) is a shunt connected static VAR generator or absorber in which control of certain power system parameters are achieved by exchanging the capacitive or inductive current which is possible by adjusting its output. SVC is a common name for a thyristor-controlled or thyristor-switched reactor, and/or thyristor-switched capacitor or combination. Figure
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A buck-boost converter provides an output voltage that can be either less than or greater than the dc input voltage VS. Hence the name “buck boost”. The output voltage polarity is opposite to that of the input voltage. It is a combination of buck and boost converters.
Figure 1: Voltage Source Converter. Symbolic representation of a voltage sourced convener is as shown in figure 1. The symbol has a box with a gate tum-off device paralleled by a reverse diode, and a D.C capacitor as its voltage source.
What is Voltage Source Converter? Working Principle & Circuit Diagram Read More »
In the dc-dc buck converter, the input voltage is constant dc voltage whereas the output voltage is a variable dc voltage and the output voltage is lower than the input voltage. Hence the name dc-dc buck converter. Figure 1: Circuit Diagram of Buck Converter.
Figure 1: Basic of Switch Mode Power supply (SMPS).
What is Switch Mode Power supply (SMPS)? Working, Block Diagram & Circuit Diagram Read More »