LINE O 220V AC TW 47K P₁ NEUTRALO 20k THYRISTOR THYRISTOR ON OFF (0) CONDUCTION ANGLE w IN4001 D₁ 12V 100k 2N2907 2 BOK HH. C. 10% Ra IM LOAD 100 IC₁ X-4556 (EXAR) TIC 1060 (400V 5A) 92 F 0.1 of 561 BC547 47% 10 F NOT CONNECTED TO LINE GROUND T-10 msec T-1.1Rs Co 用555定时器触发相位控制 LSSS OUTPUT LOAD WAVEFORM

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter7: Symmetrical Faults
Section: Chapter Questions
Problem 7.21MCQ
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Question
Why was the smoothing capacitor C1/47 not placed directly after the unit bridge? It was placed in its place in the circuit, where its work as a smoothing filter for the base voltage of transistor Q1 was deliberately stopped, but it works with the rest of the circuit elements. Capacitor C1 is isolated between transistor Q1 and the rest of the circuit by a diode (1N4001).
LINE O
220V AC
TW
47K
P₁
NEUTRALO
20k
THYRISTOR
THYRISTOR
ON
OFF
(0)
CONDUCTION ANGLE
w
IN4001
D₁
12V
100k
2N2907
2
BOK
HH.
C.
10%
Ra
IM
LOAD
100
IC₁
X-4556
(EXAR)
TIC 1060
(400V 5A)
92 F
0.1 of
561
BC547
47%
10 F
NOT CONNECTED
TO LINE GROUND
T-10 msec
T-1.1Rs Co
用555定时器触发相位控制
LSSS OUTPUT
LOAD
WAVEFORM
Transcribed Image Text:LINE O 220V AC TW 47K P₁ NEUTRALO 20k THYRISTOR THYRISTOR ON OFF (0) CONDUCTION ANGLE w IN4001 D₁ 12V 100k 2N2907 2 BOK HH. C. 10% Ra IM LOAD 100 IC₁ X-4556 (EXAR) TIC 1060 (400V 5A) 92 F 0.1 of 561 BC547 47% 10 F NOT CONNECTED TO LINE GROUND T-10 msec T-1.1Rs Co 用555定时器触发相位控制 LSSS OUTPUT LOAD WAVEFORM
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