V375B36C300BL2

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DC DC converters are used to convert a DC input voltage to another DC output voltage level, usually with an isolated or step-up connection. The V375B36C300BL2 is a non-isolated DC-DC converter from Vicor, offering a wide range of features and benefits. This article will discuss the main application field and the working principle.

Application Fields

The V375B36C300BL2 is a powerful non-isolated point-of-load (PoL) converter, offering efficient DC-DC conversion from an input voltage of 12V to a regulated output voltage of 3.3V at up to 300A. This converter is mainly targeted towards computer, medical and industrial use. Thanks to its wide current range, it can be used in system-level power solutions, distributed programming and IP-Lite solutions.

It is used in different applications where high current and low output voltage are required, such as industrial control systems, telecommunications, radio and television, and military applications. It is also often used in high-performance computers and other data processing applications, as it is able to provide regulated DC output with fast transient response.

Working Principle

The V375B36C300BL2 is based on the well-known boost converter topology, a type of DC-DC converter which operates by transferring energy from an input source to an output load. It achieves step-up of the input voltage by means of a transformer, which allows for an efficient conversion process.

The converter consists of two current-mode controlled-switch buck/boost converters (CBSBs) in parallel, each connected to the output and the input respectively. The main components of this converter are a pair of field-effect transistors (MOSFETs), a transformer and a diode. The two switches are controlled by a current mode control loop. They alternately connect the input and output to each other, thereby transferring energy from the input to the output load. The power is efficiently transferred to the output load by the transformer, while the diodes protect the MOSFETs from any reverse current.

The power factor of this converter is excellent, with the CBSB topology providing a good solution for high current applications. Furthermore, this converter is designed to deliver a fast transient response, with the output voltage variation being less than ±0.1%. This ensures a stable output voltage with minimal stress on the components.

Conclusion

The Vicor V375B36C300BL2 is a non-isolated DC-DC converter which provides an efficient and reliable solution for various high current and low output voltage applications. This converter is based on the boost converter topology, providing excellent power factor, high efficiency and fast transient response. These features make this converter one of the most reliable and popular DC-DC converters in its class.

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