ECE :: Power Electronics
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UJT can be used for
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In a series inverter supplying a load resistance R, the commutating elements L and C should be such that
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In a full wave converter (M - 2 connection) feeding an RLE load, the peak thyristor current is 15 A. For fully controlled bridge circuit and same load current, the peak thyristor current will be
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A single phase half wave controlled rectifier circuit is feeding on RL load. The circuit has a freewheeling diode. The input voltage is v = Vm sin ωt. If I0 is the load current during the conduction of freewheeling diode, the KVL equation during the conduction of free wheeling diode is
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HVDC transmission systems generally use
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A single phase semiconverter is feeding a highly inductive load. The circuit has a freewheeling diode across the load and firing angle is a. During one cycle of input voltage, the total duration of conduction of freewheeling diode is
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During forward blocking state of SCR, the voltage and current respectively are
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In a 3 phase full converter the average load current is 150 A. The average thyristor current is
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The two modes of operation of three phase bridge inverters are known as
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