2. (a) For the thyristor circuit shown in Fig. Q2a, the SCR has a latching current of 18mA and is fixed by a pulse of length 50us. When R2 is removed, the SCR failed to remain 'ON' after the firing pulse ends. Investigate the cause of this failure. 100V R1 10 ka R2 10 kQ 50HZ Fig. Q2a ww ww

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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2.
(a) For the thyristor circuit shown in Fig. Q2a, the SCR has a latching current of 18mA and is fixed
by a pulse of length 50us. When R2 is removed, the SCR failed to remain 'ON' after the firing
pulse ends. Investigate the cause of this failure.
100V
R1
10 ko
R2
10 ka
50HZ
Fig. Q2a
Transcribed Image Text:2. (a) For the thyristor circuit shown in Fig. Q2a, the SCR has a latching current of 18mA and is fixed by a pulse of length 50us. When R2 is removed, the SCR failed to remain 'ON' after the firing pulse ends. Investigate the cause of this failure. 100V R1 10 ko R2 10 ka 50HZ Fig. Q2a
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