VI-21R-EY-B1

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DC DC Converters

DC-DC converters are electronic devices which convert an input voltage to a different output voltage. They are used to power various electronic devices and are a key component in the design of power supplies. There are many types of DC-DC converters, including buck converters, boost converters, buck-boost converters, and more. This article will focus on the VI-21R-EY-B1 DC-DC converter and its application field and working principle.

VI-21R-EY-B1 DC-DC Converter: Facts and Figures

The VI-21R-EY-B1 is a high-efficiency, isolated, DC-DC converter designed for higher power applications. It operates from a wide operating input voltage range from 8-36 VDC and is rated for up to 50 W of output power. It has a high-frequency, full-bridge topology with dual outputs providing 5 and 12 VDC outputs with a high efficiency rating of up to 97%. With the integrated electromagnetic Interference (EMI) filter, VI-21R-EY-B1 has excellent noise immunity and performance in high-noise environments. The VI-21R-EY-B1 also features an onboard 2 ms slow start circuit, overvoltage protection and over temperature protection.

Application Field

The VI-21R-EY-B1 is an ideal DC-DC converter for many applications that require large power and higher efficiency. It is suitable for applications such as industrial automation, robotics, power systems and more. It is perfect for powering small devices such as sensors, embedded displays, and more. The VI-21R-EY-B1 is also well suited to powering larger applications such as servers, network switching, and other 48V and larger systems.

Working Principle

The VI-21R-EY-B1 is a closed-loop buck converter. This means that the output voltage is regulated and kept constant by monitoring the feedback voltage from the load. The DC input voltage is reduced by switching an inductor on and off at a high frequency. The inductor stores energy when it is energized and releases it when it is de-energized. The switching frequency is controlled by a feedback loop that adjusts the duty cycle of the switch based on the input voltage and the output voltage. The amount of power that the converter can provide is determined by its maximum output current and the output voltage.

The VI-21R-EY-B1 also uses a series of passive components to further improve the converter’s efficiency. A capacitor is placed between the input and output of the buck chopper to filter out high-frequency noise. An EMI filter is used to suppress high-frequency noise and reduce interference with nearby electronic circuits. A surge absorber is also included to protect the converter from voltage spikes.

Conclusion

In conclusion, the VI-21R-EY-B1 is a high-efficiency, isolated DC-DC converter which can be used in a wide range of applications. It features a wide range of protections such as an overvoltage protection, overload protection, and over temperature protection. With its high efficiency and low noise profile, it is suitable for powering small devices, as well as powering larger and more power-demanding systems. The highly efficient and reliable VI-21R-EY-B1 is an excellent choice for those looking for a reliable DC-DC converter for their system.

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