STGF3NC120HD

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The STGF3NC120HD is a highly reliable, 600V, 3-phase IGBT intelligent power module ( IPM ) with adjustable current limitation, synchronous rectification, shoot-through protection and under-voltage protection. This module is highly suitable for general-purpose AC/DC applications such as industrial drives and motor control, welding and cell imaging. This article provides an overview of the STGF3NC120HD, including its application field and working principle.

Application Field

The STGF3NC120HD is designed for use as an inverter IGBT in a three-phase AC/DC circuit. It can be used in a variety of applications requiring high power, including welding, motor control, home appliances, AC/DC, air conditioners and DC/DC converters. With its adjustable soft turn-on/off feature, the module can be used in applications where high efficiency is required, and its under-voltage protection ensures reliable operation in low-voltage and high-temperature conditions.

The module also offers high-speed switching with its low on-state losses and fast turn-on/off times. In addition, it can be used for inrush current limitation in AC/DC applications, as well as for EMI suppression in high-frequency applications. Its synchronous rectification feature also allows for improved power factor and efficiency, making the module an ideal choice for power supply designs.

Working Principle

The STGF3NC120HD is built with a three-phase IGBT power stack, consisting of a low-side IGBT, a high-side IGBT and a free-wheel diode. The IGBTs are used to control the flow of current across the three-phase circuit, and the diode is used to provide a path for the flow of current when the IGBTs are off. The on-state losses of the IGBTs are low, resulting in excellent speed and efficiency in switching operations.

The module also features an adjustable current limit, which prevents excessive current flow through the IGBTs by automatically limiting the current to a safe level. In addition, it has an under-voltage protection feature, which prevents the IGBTs from operating at an unsafe voltage level. Finally, the module features a shoot-through protection circuit, which prevents simultaneous conduction of both IGBTs. This ensures safe, reliable operation of the module in all applications.

In summary, the STGF3NC120HD is an advanced IGBT intelligent power module designed for AC/DC applications. It offers low on-state losses, adjustable current limitation, synchronous rectification, shoot-through protection and under-voltage protection, making it an ideal solution for power supply design.

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