PFE500S-28

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AC DC Converters: PFE500S-28 Application Field and Working Principle

The PFE500S-28 AC/DC Converter from Cosel is a universal multi-purpose IGBT and rectifier AC/DC converter module that can be used for powering external loads and providing greater detail, control, and accuracy in its operating environment. The module can be used in a variety of AC/DC applications such as motor speed control, rectification, lighting, heating and air conditioning, and emergency power supply.

The PFE500S-28 has a slim form factor which allows it to fit in places where other converters could not. The module has an IGBT bridge with a rectifier bridge which allows for full AC/DC conversion, enabling the user flexibility in selecting load voltage and current.

The module also has a built-in temperature protection circuit, which monitors the temperature of the heat sink and shuts down the unit if it gets too hot. This makes it ideal for use in applications that require operation in extreme temperatures or with high loads. Additionally, the module has an over-temperature protection that prevents the unit from operating at a temperature that is higher than the rated temperature.

The PFE500S-28 features a voltage range of 0-480V, current range of 0-500 A, and has a maximum output power of 120 kW. It is certified for both normal and extreme operation conditions, as well as for use in most hazardous locations.

In terms of the working principle, the AC power is converted to DC power using an IGBT bridge. The IGBTs in the bridge switch rapidly, and the output voltage is determined by the duty cycle of the bridge. The duty cycle is determined by comparing the input voltage to a reference voltage, and the output voltage is regulated using a feedback circuit.

The bridge in the PFE500S-28 is similar to a standard three-phase diode bridge, but the switching is done using IGBTs instead of diodes. This makes the module more efficient and helps to reduce the size. Additionally, the switching frequency of the bridge is adjustable, allowing for a variety of applications.

The PFE500S-28 is ideal for use in applications with tight space, temperature or load requirements. It has a relatively low power loss compared to other converters and provides a high degree of accuracy and detail during operation. Additionally, by virtue of its universal design, the module can be used with a variety of AC/DC applications in various industries.

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