VI-220-CX

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DC-DC converters are a type of power conversion devices that convert electrical power from one form to another. They are the basis for many electronic devices and systems, from automotive and aerospace systems to medical devices, computers, and consumer electronics.The VI-220-CX is a DC-DC converter that provides power conversion from DC to DC for a wide variety of applications. It offers a maximum efficiency of 99%, and its small size and light weight make it suitable for portable and space-limited applications.

The VI-220-CX is a true high-efficiency DC-DC board mountable converter that can be used in a variety of applications including telecom, medical, inter server switch, industrial control systems, solar energy, and military applications. The VI-220-CX provides an output voltage of up to 14V with an output current of 10A and can work with input sources from 4.5 to 14V. It is rated for continuous operation over -25°C to + 85°C, making it suitable for use in a wide range of temperature conditions. Its size and low profile make it ideal for applications where space is limited.

The VI-220-CX is designed to have a high power density and a low cost per watt. It is built to handle high transient loads and operates at a low-noise level of less than 50mVp-p. The VI-220-CX also features an integrated Protection IC that limits inrush current and offers overvoltage protection for both the input and output, ensuring the safety of the system. It is a continuous-mode converter with an adaptive frequency control that enables it to maintain a very stable output voltage.

The working principle of the VI-220-CX is based on the boost converter topology. The device consists of two major sections: an input section and an output section. When the input voltage is applied to the input section, the device starts to draw current from the input source. This current energizes the switching transistors, which in turn control the output section and provide power conversion from DC to DC.

The output section consists of a transformer, switching transistors, rectifiers, and output filter capacitors. The transformer has a primary winding and a secondary winding. When the transistors switch on, they will significantly increase the current on the primary winding which induces a voltage in the secondary winding. Rectifiers are used to convert the alternating voltage from the secondary into direct current and the output filter capacitors are used to clean the dc voltage and remove high-frequency noise.

The VI-220-CX is also provided with a set of two paralleled N-channel MOSFETs for paralleling two waveforms when the power source voltage is high enough. This arrangement allows the VI-220-CX to increase its efficiency at higher output current levels. The MOSFETs can be operated in either voltage mode or current mode, allowing the user to choose the most appropriate mode according to the application and the current rating of the device.

Overall, the VI-220-CX is an excellent choice for a wide range of DC to DC conversion applications. Its small size, low cost, high power density, efficiency and EMI performance make it an ideal option for many applications. Additionally, its advanced circuit design and protection features ensure safe and reliable operation.

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