MWI100-06A8

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MWI100-06A8 Application Field and Working Principle

The MWI100-06A8 is an IGBT Module with 3-phase bridge-connected SCRs (diode-connected SCRs) and active PFC (power-factor-control) that is widely used in various industrial application fields. The module is highly reliable and suitable for full automatic operation with heavy load.

Application Field

The MWI100-06A8 module is suitable for a variety of industrial applications, some of which include:

• Power supply for 3-phase electrical equipment and installations
• High-power rectification (charging and discharging) for general motors, alternators, and industrial machines
• High-power AC motor controls
• Power supply applications in process automation systems

Working Principle

The MWI100-06A8 module consists of two parts: a three-phase bridge connected SCR (diode-connected SCRs) module, which controls the application of input power to the load, and an active PFC (power-factor-control) circuit, which compensates for the power factor.

The three-phase bridge-connected SCR module is the main circuit of the module and is responsible for controlling the charging and discharging of the load. The bridge-connected SCR module is composed of three SCRs (diode-connected SCRs) connected in series, and the SCRs can be used to control the application of power to the load by controlling the current flying between the SCRs. Additionally, the module is also equipped with reverse holding circuits to prevent the SCRs from being damaged by the reverse current.

The active PFC (power-factor-control) circuit is the secondary circuit of the module and is responsible for compensating for the power factor of the input power to ensure a better power supply quality. The active PFC (power-factor-control) circuit consists of two parts, an active PFC (power-factor-control) transformer and a PFC (power-factor-control) controller. The active PFC (power-factor-control) transformer is used to absorb the lowest harmonic components from the input power and convert them into a sinusoidal waveform which is then supplied to the PFC (power-factor-control) controller. The PFC (power-factor-control) controller then controls the switching frequency of the bridge-connected SCR module to compensate for the power factor of the input power.

Conclusion

The MWI100-06A8 module is a high-reliability IGBT module with a three-phase bridge-connected SCRs (diode-connected SCRs) module and active PFC (power-factor-control) circuit. The module is suitable for a variety of industrial applications, such as power supply for 3-phase electrical equipment, rectification (charging and discharging) for motors and alternators, AC motor control, and process automation systems. The three-phase bridge-connected SCR module is responsible for controlling the application of power to the load, and the active PFC (power-factor-control) circuit is used to compensate for the power factor of the input power.

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