The power diode is one of the most used components and one of the first devices to be discovered in electronics. Its functionality is to make the electric current pass only in one direction, inhibiting it in the opposite one. In many applications, it must allow the passage of an important ...
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While in the 220V selection mode (switch open), the entire two sections of the inductor are applied with the rectifier network working like a full bridge rectifier circuit. However in the 110V mode (switch close), just 50% or one half of the coil is utilized through the left side section...
Machine, or transformer, thermal relay is a device which functions when the temperature of an AC machine armature, or of the armature or other load carrying winding or element of a DC machine or converter or power rectifier or power transformer (including a power rectifier transformer) exceeds ...
The rms current calculation is a slightly modified version of the formula in Erickson and Maksimovic's "Fundamentals of Power Electronics" to calculate the RMS total capacitor ripple current. This formula ignores the effect of inductor switching-frequency ripple current and thus underestimates the ...
In many cases, they have to simulate power electronics devices for occasional need. So they don't want to buy the SimPowerSystems toolbox in addition to Matlab and Simulink. The purpose of this chapter is to present the ability to simulate power converters using only Simulink. Simulink is a ...
Again, there are only two semiconductor devices in the current path. In the negative half line cycle, Q2 acts as main switch and Q1 acts as a synchronous-rectifier MOSFET. Q4 is always on and acts as a resistor. When Q2 is on, the ac source stores energy in inductor and the output ...
However, the voltage is not restricted, and therefore the full 220V or whatever may be at the input is allowed to reach the subsequent bridge rectifier stage. Thebridge rectifierrectifies this 220V C to a higher 310V DC, due to the RMS to peak conversion of the AC waveform. ...
A switched-mode power supply (SMPS) is a power electronics topology, which consists of two power stages. The first stage converts the ac supply into dc and the second stage converts the dc voltage to the desired dc output voltage. Figs. 7.15 and 7.16 present the block diagram of the SMP...
In addition, double-current rectifier is employed in three-level zero-voltage soft-switching circuits so that zero voltage switching in a wide of load range is much more easily achieved compared to conventional circuit. And no duty-cycle-ratio loss and no voltage spike at DC side in this ...