JWT75522/C

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AC DC converters are devices that convert alternating current (AC) into direct current (DC). JWT75522/C is an AC DC converter module designed primarily to provide power conditioning and charging solutions in modern industrial, medical, and other specialized applications.

The JWT75522/C features an improved design for maximum utilization of space-saving platforms. It includes a highly efficient buck quasi-resonant (QR) converter topology, selectable power limit, adjustable peak current and temperature control. The low profile, through-hole mounting design and low total harmonic distortion features make it an ideal choice for applications such as mobile medical equipment, industrial power supplies, and other energy-conscious applications.

This AC DC converter provides up to 850W of power, with an input voltage range of 90 to 264Vac. The extended operating temperature range of -25 to +85C ensures that the device can operate in extreme conditions. The efficiency is up to 93%, and it is RoHS compliant.

The JWT75522/C has an advanced power management system that enables system level power gating on the output to save energy and optimize system performance. It also features a built-in overload protection system by detecting input current and output voltage, and a short circuit protection system to ensure safe operation of the converter. The auto-restart current-mode control makes the converter very stable and reduces the need for external components.

The working principle of JWT75522/C involves two stages. The first stage is a boost converter which, during power up, draws current from the source to a capacitor connected to the output stage. The second stage is the buck converter, which regulates the output based on the input voltage. The output voltage is controlled by a pulse width modulation (PWM) signal from the processor, and the input current is regulated by the current sensing module. The output voltage can be regulated from 0 to 200V with an accuracy of better than 2%.

In summary, the JWT75522/C module is a high-performance AC DC converter that provides a cost-effective solution for power conditioning and charging applications. It is designed to maximize efficiency and minimize the power consumption, while ensuring a stable output voltage and reliable operation. Its dual-stage design provides a high-efficiency power conversion, and its advanced power management system ensures that it can operate safely in extreme conditions.

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