By Euzeli dos Santos, Edison R. da Silva
This ebook covers strength electronics, intensive, through proposing the fundamental rules and alertness information, which are used either as a textbook and reference book.
• Introduces a brand new solution to current strength electronics converters known as strength Blocks Geometry (PBG)
• Applicable for classes concentrating on strength electronics, energy electronics converters, and complicated energy converters
• Offers a accomplished set of simulation effects to assist comprehend the circuits provided in the course of the book
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Additional resources for Advanced Power Electronics Converters: PWM Converters Processing AC Voltages
Its range of power operation is up to 50 kW. 2 kW can operate in the ultrahigh frequency range up to 450 MHz. However, the gate-source voltage required for turning this device off is about VGS = −30 V. 5 V. The SITH The SITH, or SIThy, a device unidirectional in voltage, is a combination of an n-channel SIT and a p–n–p transistor. Its symbol is given in Fig. 13(b). It is a normally-on device with turn-off controlled by negative gate voltages and it does not have reverse blocking capability. 5 kV∕300 A and has a rated frequency of 10 kHz but it is expected to be applied to power sources up to 10 MHz.
5 The diode: (a) symbol and (b) I –V characteristic. 18 CHAPTER 2 POWER SWITCHES AND OVERVIEW OF BASIC POWER CONVERTERS circuits are essential for the adequate protection of the diode. The snubber circuit will protect it from overvoltage spikes, mainly due to the junction capacitance and leakage inductance from terminals and circuit connections. The basic snubber circuit is composed of a capacitor in series with a resistor connected in parallel with the diode. The size of the snubber circuit is reduced for the fast (trr < 1 μs) and ultrafast recovery diode (trr < 100 ns), with ratings reaching: (i) 600 V, 30 A and trr = 50 ns, and (ii) 1200 V, 120 A, trr = 85 ns.
Piccone et al. from Silicon Power Corporation, with rated values of 6000 V and 500 A. 4 BASIC CONVERTERS As mentioned earlier, a power electronics converter interfaces a source and a load (or another source). The source can be either of voltage type or current type. , an inductive load). The connection between a source and a load should obey the following sequences: (i) voltage (V)–current (I)–voltage (V)–current (I), or (ii) current (I)–voltage (V)–current (I)–voltage (V). Four connections between source and load are then possible, as shown in Fig.
Advanced Power Electronics Converters: PWM Converters Processing AC Voltages by Euzeli dos Santos, Edison R. da Silva