VI-21T-CW-B1

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DC-DC converters provide a clean and efficient means of producing the desired outputs of various levels of direct current (DC) power from an input of a different level of direct current. DC-DC converters are commonly employed in many kinds of applications, ranging from the automotive to the industrial to the telecommunications.

The VI-21T-CW-B1 from Vicor is an isolated DC-DC converter. It provides a regulated output voltage of 21 volts at a maximum current rating of 1.2 amps, from a wide input voltage range of 9 to 36 volts. The device also features Vicor’s Z-Aux PowerPath™ topology, which maximizes energy efficiency by ensuring that the converter efficiently transfers energy from the source to the load.

Application Field

The VI-21T-CW-B1 is highly suitable for a number of different applications. It is commonly used as a power supply in industrial equipment, as well as in airborne and ground vehicles. Additionally, it can be used to regulate voltage in medical devices, or to provide backup power systems for computers or other critical equipment.

The VI-21T-CW-B1 is also a reliable converter for cellular infrastructure, providing a regulated 21V output while compensating for any voltage fluctuation or power interruption between the input and the load. This is particularly useful in locations where the power grid is unstable, or in areas with frequent power outages.

Working Principle

The VI-21T-CW-B1 functions as an electrical transformer, transforming a lower voltage signal into a higher voltage signal. It uses isolated power stages to minimize energy losses. The Z-Aux PowerPath™ topology maximizes energy efficiency by ensuring that the energy stored in the input capacitors is efficiently transferred to the load.

The output voltage is regulated by an internal digital controller. This controller monitors the voltage ratios between the input and the output, and adjusts the output voltage appropriately. The output voltage also maintains its regulation across wide input voltage variations.

The VI-21T-CW-B1 is designed with built-in features that protect the system from overload and over-temperature conditions. The power stage is protected against short circuit, over-temperature, over-voltage, and under-voltage conditions. The device also features an over-temperature shutdown to prevent excessive heating and thus enhance the reliability, although this is rarely needed as the VI-21T-CW-B1 has an effective thermal management system.

Conclusion

In summary, the VI-21T-CW-B1 is an isolate DC-DC converter designed to provide a regulated 21V output from a wide range of input voltages. It is suitable for a number of applications, including medical equipment, defense infrastructure, and emergency backup systems. The Z-Aux PowerPath™ topology ensures that energy is efficiently transferred from the source to the load, and the device is also protected against overload and over temperature conditions.

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