c)When considering thyristor switching why is Isolated GateControl needed ?d)The filtered rectifier output is now feeds the regulatorcircuit shown in figure Q6b.i)Name the type of regulator shown in the shaded areaand briefly describe its operation.ii)If the voltage, VL, that appears across the potentialdivider is regulated to 5V what size zener diode is used?The entire circuit uses the op-amp comparator toiii)allow the limit on the maximum load current to bevaried. Explain the operation of the circuit andidentify the maximum load current, IL , allowed if thepotentiometer's output is 4V and Rx is 20 ?

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c) When considering thyristor switching why is Isolated Gate Control needed ?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Maximum power transfer theorem

A resistive load will consume maximum power from a network when the load resistance is equal to the resistance of the network as viewed from the open-circuit terminals, with all energy sources removed leaving only the internal resistances. Physicist Moritz von Jacobi introduced the maximum power transfer theorem in 1940. Therefore, this theorem is also known as Jacobi's law.

Question

c)
When considering thyristor switching why is Isolated Gate
Control needed ?
d)
The filtered rectifier output is now feeds the regulator
circuit shown in figure Q6b.
i)
Name the type of regulator shown in the shaded area
and briefly describe its operation.
ii)
If the voltage, VL, that appears across the potential
divider is regulated to 5V what size zener diode is used?
The entire circuit uses the op-amp comparator to
iii)
allow the limit on the maximum load current to be
varied. Explain the operation of the circuit and
identify the maximum load current, IL , allowed if the
potentiometer's output is 4V and Rx is 20 ?

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