QPDF-320-36

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AC/DC converters are devices that convert alternating current (AC) to direct current (DC). The QPDF-320-36 AC/DC converter is an example of such a device. It is a multi-purpose, high-speed, high-efficiency AC-DC converter specifically designed for applications requiring low power consumption and low output ripple.

The QPDF-320-36 AC/DC converter features a 32-bit ARM processor and an advanced control algorithm which provide superior performance in both linear and pre-regulator stages. The in-built active rectification circuit with SenseFET technology helps to reduce power loss and extend the lifetime of the unit. The active PFC control scheme and the low leakage of the converter afford high efficiency, up to 90%, making it suitable for energy-saving applications. The converter also features a low quiescent current operation, providing up to 10,000 hours of operation, making it suitable for many industrial applications.

The QPDF-320-36 AC/DC converter is specifically designed for use in low to medium power applications including: industrial control, communication, medical equipment, consumer electronics, electric vehicle chargers, battery packs, small UPS systems, and scientific instruments. The wide input voltage range of 70V–260VAC as well as the small size of the converter makes it suitable for many applications.

The working principle behind the QPDF-320-36 AC/DC converter is based on the flyback topology, which is a combination of a power switch, an inductor, and a diode. The main components of the converter include an integrated control IC, a power MOSFET switch, an SCR rectifier diode, an EMI filter, an input filter, and an output filter. When AC power is applied to the input, the control IC will sample the voltage and current information, and then set the duty cycle of the power switch. The inductor and the MOSFET switch work together to regulate the power switch in order to create a regulated output DC voltage. The rectifier diode also helps to rectify AC power, and the filter is used to clean the output signal so that it is free of any noise or ripple.

In conclusion, the QPDF-320-36 is a high-efficiency, low-power AC/DC converter specifically designed for a wide range of applications. Its features such as active PFC control, low quiescent current, and SenseFET technology make it an ideal choice for low to medium power applications. Its working principle based on the flyback topology is simple yet effective, providing reliable and regulated output power.

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