0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How do you work thyristor?
The thyristor functions in such a way that when the anode voltage is greater than the cathode voltage , it is not triggered but only triggers when a gate signal is applied at the gate of the device.
What are the application of a thyristor?
The industrial applications of a thyristor are:To trigger a triacTo produce gate signalsto be used for controlled rectification
What is the ratio of latching current to holding current?
Latching current is the current flowing between anode to Cathode when thyristor is turned on using gate pulse. If the gate pulse is removed before the required min amount of latching current value is not reached thyristor will turn off. To keep the thyristor in on state the gate pulse duration should be so adjusted that the min latching current value is reached before it ends.
Power thyristor how to check?
A thyristor is a rectifier semiconductor between two electrodes that permit unidirectional flow in anodes and cathodes.The flow of the current can be switched by a gate electrode that controls main driven electrical devices.To check a thyristor the current flow (between emitter/collector terminals) is checked.Then a small base current is applied to see if the thyristor functions as a switch.
What is conduction angle in thyristor?
not a clue a A: It all depends on the thyristor. There are no calculation involved not until you look up the thyristor specifications and decide on the load of the thyristor then you may calculate or more likely choose.
How do you work thyristor?
The thyristor functions in such a way that when the anode voltage is greater than the cathode voltage , it is not triggered but only triggers when a gate signal is applied at the gate of the device.
Turn off and turn off mechanism of thyristor?
The turn off and turn off mechanism of a thyristor can be best explained by the gate turn-off thyristor. The thyristor uses the reverse bias mechanism.
What are the application of a thyristor?
The industrial applications of a thyristor are:To trigger a triacTo produce gate signalsto be used for controlled rectification
Which thyristor device has a gate electrode?
A: Without the gate there is only two diodes back to back. The gate is the turn on switch
Can we replace a thyristor by a mosfet?
No because a mosfet does not work the same as a thyristor. In a thyristor the current flows even when the gate pulse is removed, until the current stops. That is not the case for a FET.
How do you use a thyristor as a diode?
A thyristor, also known as a silicon controlled rectifier, is a diode that can be turned on by application of a small gate voltage.
What are the necessary conditions for turning ON an silicon controlled rectifier?
A: Two conditions one the gate has current flowing trough the other is forward voltage breakdown
Why the Gate triggered method is always preferred to turn on the thyristor?
A: Because that is the controlling lead of an thyristor. .To do it otherwise it will be on-off at hi voltage only
what are the condition for thyristors to conduct?
A forward bias A positive pulse to the gate of the thyristor.
What is the ratio of latching current to holding current?
Latching current is the current flowing between anode to Cathode when thyristor is turned on using gate pulse. If the gate pulse is removed before the required min amount of latching current value is not reached thyristor will turn off. To keep the thyristor in on state the gate pulse duration should be so adjusted that the min latching current value is reached before it ends.
Why thyristor is called controlled device?
its output voltage can be conrolled by changing gate signal akash pilani
What is the thyristor firing circuit?
The thyristor is basically used a switch in an AC circuit to control the amount of power fed to the load. To turn on this switch an "electric" pulse should be applied to the Gate terminal of the Thyristor. A circuit which supplies the "electric" pulse is called the firing circuit.
