Thyristor module mentioned, people will think it is something similar to the diode, but the effect often is not particularly understand in detail, especially the role of the circuit is more little, below, thyristor
module small make up to you to popularize related knowledge, explain the role of thyristor module in circuit in detail.
The role of thyristor in circuit, generally there are two, mainly controlled rectifier and non-contact switch.
Controlled rectifier: in general, common thyristor module used in the circuit is controlled rectifier, as everyone is familiar with diode rectifier circuit is controlled rectifier circuit, if change to diode thyristor module, can constitute a controlled rectifier circuit, inverter, motor speed, motor excitation, non-contact switch machine, automatic control, and other applications.
In electrotechnics, alternating current (ac) half a cycle of 180 degrees, often referred to as the electrical point of view, so the U2 are each half cycle, from zero to trigger pulse arrival instant of electric Angle as control Angle alpha;
In each is half weeks thyristor conduction Angle of electric conduction Angle theta.
Obviously, alpha and theta are used to represent thyristor in forward voltage under half cycle of the scope of the conduction or block.
By changing the control Angle alpha or conduction Angle theta, change the pulse dc voltage on load average UL, controlled rectifier is realized.
Non-contact switch: the role of the thyristor module, of course, is not only a rectifier, it also can be used as a non-contact switch, in order to better connect or cut off the circuit quickly, realize the dc into ac inverter, a frequency of the alternating current into another frequency alternating current (ac), and so on.
It can be seen that the role of thyristor module in circuit is very big still, already can replace some traditional thyristor module control components, to better use some electrical equipment and power to lay a solid foundation.
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