VI-274-MY-B1

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DC-DC converters are an effective solution for providing a stable output voltage from a source of varying DC input voltage. The VI-274-MY-B1 is a DC-DC converter that is specifically designed to provide a reliable power supply solution for a variety of applications. This article will discuss the application field and working principle of the VI-274-MY-B1 DC-DC converter.

The VI-274-MY-B1 is a synchronous rectification non-isolated DC-DC converter, suitable for fixed input voltage power supplies such as telecom, PoE (Power over Ethernet) and industrial systems.

The max. load current of this product is 20A, and the max. output power is 300W. It has a wide input voltage range of 4.5V to 14V, which makes it suitable for various input voltage sources, from battery, solar panel to AC(85-264V). The output voltage is adjustable from 0.6V to 10V, which makes it applicable to a variety of industrial, telecom, PoE(Power over Ethernet) devices.

The VI-274-MY-B1 features low ripple, low input and output voltage ripples and an industry-leading efficiency of up to 95%. It has excellent EMI performance, meeting EN61000-3-2, and top rank of EN55011B at full load. Besides, the VI-274-MY-B1 also provides sophisticated protection features such as current limit protection, over-temperature protection, reverse polarity protection, and overvoltage protection.

The key of the VI-274-MY-B1\'s excellent performance lies in its working principle. The VI-274-MY-B1 DC-DC converter is based on a synchronous rectification topology, which provides more reliable performance and higher efficiency than traditional buck converters. In this topology, the converter consists of two MOSFETs, one on the primary side and one on the secondary side. A high frequency switching signal is applied to the MOSFETs which turns them on and off. When the primary MOSFET is on, current flows through the primary winding, creating a magnetic field. Then the secondary MOSFET is turned on while the primary MOSFET is off, the current flows in the opposite direction, in turn producing the output voltage. By controlling the duty cycle of the switching signal, the output voltage can be regulated to a required level.

In summary, the VI-274-MY-B1 converter is a highly efficient and reliable DC-DC converter solution that is suitable for a variety of applications. Its advanced synchronous rectification topology brings higher efficiency and superior features, such as excellent EMI performance, low ripple, wide input and output voltage ranges, and overvoltage protection. With its impressive performance and features, the VI-274-MY-B1 is an ideal choice for telecom, PoE, and industrial systems.

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