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thyristor can be turned off only by reducing the anode current belaw a certain value called holding current
by abdullahi yusuf gedi
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∙ 11y ago
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Operation of commutating capacitor?
Commutation Capacitors are usually switched in parallel to the thyristors.
Can SCR be replaced by TRIAC?
Yes since the SCRs act as the real thyristors
What is reverse breakover voltage in scr?
That depends, you should look it up in the datasheet. For some thyristors it's as low as 6V
Why a UJT is not a thyristor?
Because to remain in conduction it requires a supply of emitter current. Without a minimum value of emitter current it can't stay in the on position. Most thyristors do not require gate current after they are turned on to remain in conduction
What is race around condition and how it can be eliminated?
In Race round condition gate operation delay by signal but gate oprate first with clock ,this condition called the race raund confident
what are the condition for thyristors to conduct?
A forward bias A positive pulse to the gate of the thyristor.
What has the author M Gaudry written?
M. Gaudry has written: 'Redresseurs et thyristors' -- subject(s): Silicon rectifiers, Thyristors
Why thyristors are preferrred over transistors?
Thyristors are preferred in applications that require the characteristics on a thyristor. Thyristors are quite different to transistors, when they turn on, they stay turned on untill the power source is removed. Transistors conduct as controlled by the emitter current.
Operation of commutating capacitor?
Commutation Capacitors are usually switched in parallel to the thyristors.
How matrix converter evolved?
At first, there was cycloconverter with thyristors, then matrix converter with IGBT...
Can SCR be replaced by TRIAC?
Yes since the SCRs act as the real thyristors
What is thyristors?
A thyristor is a part of a alarm circuit you use it so the alarm stays on
What are the switching elements used in high voltage?
There are devices called thyristors which are used for switching purposes in high voltage levels. Thyristors are of different typesSCRIGBDiacTriac, etc.Apart from these MOSFETs, a type of transistor, are also used in high voltage switching applications.
How many number of thyristors are used in the single phase full wave bridge?
A full wave bridge uses 4 diodes to operate. A half wave bridge used 2 diodes to operate. Thyristors used in a full wave bridge are triggered diodes. To make these types of bridges operate a trigger board is required to be connected to the gate input of the thyristor. Thyristors are also known as silicon controlled rectifiers (SCR).
What has the author William Fong Yan written?
William Fong Yan has written: 'A study of the turn-on mechanisms in thyristors'
What is reverse breakover voltage in scr?
That depends, you should look it up in the datasheet. For some thyristors it's as low as 6V
What has the author Shashi Bhushan Dewan written?
Shashi Bhushan Dewan has written: 'Frequency and phase conversion using thyristors'
