2868583 Power Supplies - External/Internal (Off-Board)

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AC/DC converters allow us to use alternating current (AC) to generate direct current (DC). Although AC is more readily available, DC is typically the desired type of power for modern electronic devices. Therefore, AC/DC converters are essential. One such AC/DC converter is the 2868583.

The 2868583 AC/DC converter is a power factor correction (PFC) converter. It is a device used to step down or step up AC power from the mains supply and convert it to a regulated DC voltage, commonly used for switching mode power supplies. The 2868583 is capable of operating with input voltages ranging from 80 to 480 VAC. It also contains additional features, which makes it suitable for special applications such as LED lighting or electric vehicle charging.

The 2868583 AC/DC converter works by using two separate stages of power conversion. In the first stage, an AC power is converted to high-frequency DC, using a power factor corrected boost topology converter. This is often referred to as current-mode. This is then rectified and filtered to a low-impedance DC voltage. The second stage of the converter, or voltage-mode, converts the low-impedance DC voltage to a regulated DC output.

The PFC stage of the 2868583 converter comprises a PFC boost topology, which is mainly used to increase the efficiency of the power conversion. This topology enables the input voltage to be adjusted to ensure optimal power transfer. The voltage is then switched at a high frequency, resulting in a low-ripple DC voltage. The boost topology also helps to reduce power losses, as the power factor is kept near unity, and hence reduces the harmonic distortion.

The voltage-mode stage of the converter comprises an AC-DC bridge rectifier, which rectifies the DC voltage, and a filter capacitor, for filtering and buffering the output voltage. The PWM controller then converts the voltage to a desired regulated DC voltage, by generating a PWM signal and controlling the switching of the MOSFETs in the output stage.

The 2868583 AC/DC converter is highly efficient, featuring a switching frequency of up to 500kHz, with a peak efficiency of 98%. This makes it an ideal power source for electronic devices and applications requiring low-power, high-efficiency conversion. Furthermore, the converter has a wide range of input voltages, making it suitable for applications in various environments.

The 2868583 AC/DC converter is suitable for a variety of applications such as electric vehicle chargers, uninterruptible power supplies, industrial and domestic chargers, electronic ballasts, and LED lighting. In addition, it is also an ideal solution for renewable energy systems, as the PFC topology helps to reduce the harmonic distortion from the power system.

In conclusion, the 2868583 AC/DC converter is a highly efficient power source for several different applications. It is capable of operating with input voltages ranging from 80 to 480 VAC, and features a switching frequency of up to 500kHz, with a peak efficiency of 98%. Additionally, its PFC topology helps to reduce the harmonic distortion from the power system, making it an ideal solution for renewable energy systems.

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