VI-261-EY-F4

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DC-DC converters are devices used to efficiently convert one form of DC power to another, normally from higher voltage sources to lower voltage loads. A VI-261-EY-F4 DC-DC converter is a continuous-mode switching power supply with adjustable maximum output current, whose input range is from 3.0V to 19V and outputs from 1.2V to 15V. It is specifically designed for applications with high density, such as distributed power systems, laptop adapters, telecom power supplies, notebook PCs, battery chargers, and set-top boxes.

The VI-261-EY-F4 DC-DC converter integrates several cutting-edge technologies, including high-frequency switching, wide input voltage, active Power Factor Correction (PFC), and voltage-mode-control (VMC). It maintains the input power factor higher than 0.9, and achieves the low total harmonic distortion (THD) of 20%. Under typical temperature conditions, the peak efficiency of the DC-DC converter can reach up to 95%.

The working principle of the VI-261-EY-F4 DC-DC converter is relatively simple yet highly effective. It starts with the transformation of the AC power from the input side to DC power using rectification. The input side is then connected to the primary winding of the transformer. The DC power from the input side current flows through this primary winding and causes a voltage to be induced in the secondary winding. This induced voltage is then rectified and filtered to provide a stable DC power output. After that, the output of the DC-DC converter is regulated by the control circuit to achieve the desired output voltage and current.

In addition, the VI-261-EY-F4 DC-DC converter has built-in protection features including over-voltage protection, over-temperature protection, current limiting protection, and short-circuit protection. With these protective features, the device can operate safely in the event of abnormal situations due to overload, short circuit, or excessive temperature. All these features make the VI-261-EY-F4 DC-DC converter a reliable device and a suitable choice for many types of system designs.

The VI-261-EY-F4 DC-DC converter offers an ideal solution for distributed power systems and many other applications due to its high density, high efficiency, and wide input voltage range. It is designed to offer superior performance and enhanced protection features in order to ensure reliable operation in electronic devices and systems.

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