MMO74-12IO6 Discrete Semiconductor Products

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Thyristors, also known as silicon controlled rectifiers (SCRs), are solid-state semiconductor devices that contain four or more alternating P-N layers connected in series. An SCR is one type of module that consists of two Thyristors and is used to control the switching of power from a single DC supply. The MMO74-12IO6 module is a specific type of SCR module that is used in applications such as welding power supplies, high power switching, or motor speed control. This article will explain the application field and working principle of the MMO74-12IO6 module.

The MMO74-12IO6 module is primarily used in welding power supplies and high power switching applications. It is used in power supplies to regulate the output voltage or current, and in switching applications it is used to control the timing and magnitude of current flow. In motor speed control applications, the MMO74-12IO6 module is used to regulate the speed of a motor by controlling the amount of current that passes through it. It is also used in power converter circuits as a means of rectification.

The MMO74-12IO6 module is a two-channel SCR module, meaning that it consists of two Thyristors (T1 and T2) that are connected in series. It is commonly used in three-phase power systems, with each channel controlling one phase. The module has an operating voltage of 2000V and a surge voltage of 6000V, which makes it suitable for applications with high power requirements.

The working principle of the MMO74-12IO6 module is based on the thyristor’s capability to switch on when a certain voltage threshold is reached, and off when the voltage drops below the threshold voltage. The process occurs in two stages: a ‘triggering’ stage and a ‘commutation’ stage. The triggering stage is where a voltage pulse is applied to the gate of the Thyristor, causing it to switch on. During the commutation stage, the current flowing through the Thyristor is switched off by reducing the voltage applied to the gate.

The MMO74-12IO6 module also contains a number of built-in safety features such as over/under voltage protection, over-temperature protection, and over-current protection. These features ensure that the Thyristor module is more reliable and prevents it from being damaged in the event of an over-voltage or over-current situation.

In conclusion, the MMO74-12IO6 module is a two-channel SCR module that is commonly used for welding power supplies, high power switching, and motor speed control. It has an operating voltage of 2000V and a surge voltage of 6000V, and it employs the thyristor’s on/off behavior to switch power on or off. The module also has some additional safety features to protect against possible over-voltage and over-current problems.

The specific data is subject to PDF, and the above content is for reference