FP15R12KT3BOSA1

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Transistors - IGBTs - Modules

The FP15R12KT3BOSA1 is a module type insulated gate bipolar transistor (IGBT), a type of transistor that has unique properties and abilities than other types of transistors. It is a step between a power metal-oxide-semiconductor field-effect transistor (MOSFET) and a bipolar transistor and is used in a wide variety of applications, from power controllers to renewable energy systems.

An IGBT is composed of a MOSFET and a bipolar junction transistor (BJT) connected in series and controlled by a single gate. Essentially a MOSFET and BJT have been merged into a single device providing an inherently fast switching characteristic due to its low output capacitance. IGBTs have a lower on-state voltage than normal BJTs and they are typically used as switches. Some of the main benefits of IGBTs are their switching speed, high-temperature operational capabilities and cost-effectiveness.

Construction

An IGBT module typically contains many IGBTs connected in parallel, sharing one common gate driver module and one common current distributor. This reduces the total cost of the system by eliminating multiple drivers, gate signals and control circuitry.

The FP15R12KT3BOSA1 is a 12 module IGBT module, containing 12 paralleled IGBTs with a common DC link. Its total current rating is 600A (max) and its maximum power rating is 3600V (max).

Power Module Structure

The structure of the FP15R12KT3BOSA1 power module consists of a high-frequency silicon-steel sheet (ferrite core) and a three-level main board (gate board, high current board, and output power board). The module has a built-in, isolated gate driver and the gate drive amplifier provides a strong driving capability. Compared to regular modules, the FP series power modules feature a different layout, wire structure, and cooling design, which enable it to withstand extreme operating conditions.

Application Fields and Working Principles

The FP15R12KT3BOSA1 is a powerful and cost-effective NPT IGBT module, ideal for medium- and high-power applications in areas such as industrial motor drives, general motor drives, and UPS system. For example, it can be used for variable-frequency motor drives, soft starters, and chopper drives. It is also used for traction applications and high-performance power electronics.

In terms of operating principles, the IGBT module takes a PWM signal as its gate switch input, and the PWM signal is usually provided by the drive circuit. The DC voltage at the common terminal is then converted into an AC pulse by the drive circuit, so that it is possible to control the conduction state of the IGBT and adjust the current flow in an electric motor.

Conclusion

FP15R12KT3BOSA1 is a powerful and cost-efficient IGBT module, ideal for a variety of medium and high-power applications. The module has a built-in, isolated gate driver and a strong driving capability, and it can be used in variable-frequency motor drives, soft starters, and chopper drives. It can also be used in applications such as traction and high-performance power electronics.

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