VI-220-EW-F4

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DC DC Converters

A DC-DC converter is an electronic device or circuitry that converts a source of direct current (DC) from one voltage level to another. It is a type of electric power converter. The DC-DC converter is typically used to supply the low voltage (often 3.3 V or 5 V) circuitry of electronic equipment,with power converted from a higher voltage battery or an alternating current adapter. DC-DC converters are used extensively in portable electronic devices such as cellphones, digital cameras, laptop computers, PDAs and other devices that are supplied from battery packs.

VI-220-EW-F4 Application Field and Working Principle

The VI-220-EW-F4 is an extremely flexible DC/DC converter module with wide input voltage range and varies output voltages and currents. It is used in a broad range of applications from isolated DC/DC power conversion to voltage management between two isolated power bus. The module is built with a switching frequency of 220KHz that maximize efficiency and minimize size.

The VI-220-EW-F4 comes in a small size as a single channel DC-DC converter, with 120VAC to 480VAC input voltage and an adjustable output current of 0 - 12A. It features high efficiency up to 90%, low total harmonic distortion (THD < 5%), wide temperature range, EMI-filtering, short-circuit protection, overload protection, voltage transients protection, and surge protection.

The VI-220-EW-F4 works by converting the input voltage into a high frequency (HF) alternating current (AC). The HF AC is then rectified into a direct current (DC) that is converted into low frequency (LF) AC, and finally rectified back into a DC voltage. This is the basic principle of operation for all DC-DC converters.

The VI-220-EW-F4 also provides dynamic control over the output voltage and current, which further optimizes efficiency and stability. This ensures that the output voltage is kept within a required range. In addition, the VI-220-EW-F4 also provides protection against over-current, over-voltage, and reverse-polarity.

In summary, the VI-220-EW-F4 is a highly dynamic, efficient, and reliable DC-DC converter that can provide significant cost savings and an improved user experience. It can be used in a variety of applications, such as voltage management between two isolated power buses, and is an ideal solution for powering a wide range of electronic devices.

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