VI-20W-EX-B1

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DC DC converters are essential components of the electrical system, providing electrical power to electronic circuits, drives, and other devices. They come in a range of sizes and configurations and are usually integrated into a larger system or application in order to provide an efficient and cost effective way to supply power. The VI-20W-EX-B1 is an example of these DC DC converters that is used in a range of applications. This article will look at the application field and working principle of this converter.

Application Field of the VI-20W-EX-B1

The VI-20W-EX-B1 is designed primarily for use in automotive, industrial, and consumer applications. It is designed to convert 9V – 60VDC into a highly regulated 5V output. In many cases, this converter is used in place of expensive, bulky, and hard-to-use transformer designs. As a result, it has found great popularity among automotive designers who need to supply a constant 5V to a number of different components, as well as among industrial engineers who want to use a DC supply to power their equipment.

The converter can operate in temperatures between -40⁰C and +85⁰C, making it suitable for a wide range of automotive and industrial applications, and it is rated for continuous operation at 20W. This makes it a great choice for applications that require a constant 5V output, such as powering up remote control systems, automotive sensors, and other similar devices.

Working Principle of the VI-20W-EX-B1

The VI-20W-EX-B1 is a half-bridge type DC DC converter. This means that it consists of two components, a bridge rectifier and a buck converter. The bridge rectifier converts the DC input into a double-pulse DC voltage, while the buck converter steps down this voltage to the desired output. The converter then uses a feedback mechanism to constantly adjusts the output voltage, ensuring that the output is always at the desired level.

The bridge rectifier is a four-terminal diode-bridge circuit which is capable of rectifying alternating current (AC) into direct current (DC). The bridge rectifier is connected in such a way that it produces four pulses of equal magnitude, each having a frequency twice that of the input AC voltage. The buck converter then takes these four pulses and uses them to step-down the voltage to the desired output level.

The buck converter is a single-stage device that consists of an inductor and a power transistor. When the device is switched on, the transistor acts as an electronic switch and charges the inductor. As soon as the inductor stores the energy, the transistor turns off and the inductor releases the energy, resulting in a stepped down voltage. This voltage is then fed to the bridge rectifier, which further steps down the voltage and provides a highly regulated 5V output.

The VI-20W-EX-B1 is capable of delivering up to 20W of power and can operate in temperatures between -40⁰C and +85⁰C. The converter features a range of protection mechanisms, such as short circuit protection, current limiting, over temperature protection, and over voltage protection, making it a great choice for a variety of applications.

Conclusion

The VI-20W-EX-B1 DC DC converter is a reliable and cost effective solution for a range of automotive, industrial, and consumer applications. It can be used to supply up to 20W of power at a highly regulated 5V output and features a range of protection mechanisms, making it a reliable source of power. Furthermore, its compact size and wide operating temperature range make it an ideal choice for designers and engineers who need an efficient and cost effective way to provide power to their systems.

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