VI-20H-CY

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DC DC converters provide a means of converting direct current (DC) voltage from one level to another. The VI-20H-CY is a DC DC converter manufactured by Vicor. This article examines the application fields and working principles of the VI-20H-CY.

What is the VI-20H-CY DC DC Converter?

The VI-20H-CY is a high-density, off-line, closed-frame, ultra-high-efficiency DC-DC converter. It is designed for high-efficiency point-of-load applications requiring an electric power density of up to 663 W/in³.

The VI-20H-CY is an isolated, regulated DC-DC power converter. This type of converter provides a cost-effective solution for powering non-isolated loads from an isolated input source, while providing a high degree of electrical isolation, a rugged chassis construction, and high reliability. It is capable of providing up to 20 A output at an input voltage of 24-48 VDC.

Application fields

The VI-20H-CY is suitable for applications including the following:

• High performance computing systems
• Telecommunications
• Data centers
• Off-line and on-line instrumentation
• Broadcast and entertainment systems
• High voltage laboratory experiments
• Mass spectrometers

The VI-20H-CY converter is also suitable for a range of other applications where a high power density and efficient point-of-load (POL) are required.

Working Principle

The working principle of the VI-20H-CY DC-DC converter is based on a regulated fly-back topology. When the converter is in operation, the magnetic core of the transformer stores energy in the input voltage source. This energy is transferred through the transformer to the output stage. It is then regulated via a control loop which adjusts the converter to ensure stable and reliable output.

The VI-20H-CY converter is designed for high-efficiency applications and includes several features such as active PFC (MPPT) control methods, wide input voltage range, and a wide temperature range. Additionally, the converter features a control loop which operates in current-mode and provides excellent transient response and high accuracy in output regulation. The converter is also designed to meet European EMC standards.

The VI-20H-CY also has optional features such as current sharing, remote sensing, and hot-swapping. These features enable the converter to be used in high-performance computing systems. These optional features can be enabled by the user in order to ensure optimum performance from the DC-DC converter.

Conclusion

The VI-20H-CY is a high-density, off-line, ultra-high-efficiency DC-DC converter. It is suitable for applications such as high performance computing systems, telecommunications, and data centers. The working principle of the VI-20H-CY is based on a regulated fly-back topology, and the converter includes several features such as active PFC and wide input and temperature range. Additionally, it is designed to meet European EMC standards, and optional features such as current sharing, remote sensing, and hot-swapping can be enabled in order to ensure optimum performance from the DC-DC converter.

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