When it comes to thyristor modules and solid state relays, many people are confused, let alone the difference between the two, and may even be unclear about the distinction between them. Today, the editor will tell you some differences between SCR modules and solid state relays.
The so-called solid state relay, it is only equivalent to a switch, can not play any role in adjusting the current, while the thyristor module can control the conduction angle, can adjust the size of the current, and to a certain extent, the solid state relay can It is made with thyristor as the main component. The difference is that the action voltage and control voltage of the solid state relay are separated by an internal circuit such as an optocoupler. If you don’t understand, I believe that you can take a look at the inside by disassembling a fixed relay. .
In addition, the thyristor can be one-way or two-way, it can be triggered by zero crossing or by phase shifting. Of course, the same is true for solid state relays. It can be said that the use and form of the SCR module and the solid state relay have the same type of products. From this point, it can be said that there is no difference. The fixed relay is made of SCR.
Many people may say, is there no difference between the two? In fact, there is a difference between the SCR module and the solid state relay. The main difference is that the SCR is the SCR, and the fixed relay is the SCR + synchronous trigger drive.
I believe that through the above introduction, everyone should have a very clear understanding of the thyristor module and the solid state relay. If you want to distinguish, the two are also well distinguished. The difference can be seen directly through the shape.
Previous:Five requirements to be met when using thyristors