PXV1220S-3DBN4-T

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Attenuators are electrical components designed to reduce the strength of a signal without significantly altering its other characteristics. The PXV1220S-3DBN4-T is an example of one such component, commonly used in power supply, radio circuits, telecommunications switches, broadband systems, and other electrical and electronic systems. It is a low-cost, high-performance adjustable DC-DC converter designed to efficiently step down the output voltage without compromising the signal quality.

PXV1220S-3DBN4-T is designed on a multi-winding, retified and isolated fly-back circuit topology. It includes two thermal radiators along its body to provide improved cooling and longer life time. It also includes a wide input voltage range with up to 800V, a wide load current range with up to 120A and an adjustable output voltage with a resolution below 0.1%.

PXV1220S-3DBN4-T uses a highly robust synchronous switch mode controller to regulate the output voltage. This controller consists of an integrated primary current mode control IC with an integrated power switch, which further reduces the number of external components needed and improves the overall performance. A shielded ferrite transformer provides an isolation voltage up to 1200V. The rectifier employs dual active rectification techniques to increase conversion efficiency and reduce losses at full load. An adjustable voltage regulation pin is also present, which makes the output voltage adjustable within a fixed range using external components.

PXV1220S-3DBN4-T\'s primary application fields are in power supplies, such as DC-DC converters for telecom switchover power, power adapters, AC/DC power supplies, base station power supply systems, and RF base station systems. It can also be used in broadband systems, such as indoor and outdoor RF base station systems and digital PCR systems. Additionally, versatile circuits require adjustable output voltage accuracy, such as low voltage DC-DCs for telecom systems, computer peripheral interface systems, and point-of-load circuits.

The working principle of PXV1220S-3DBN4-T involves transforming the input voltage to a level that is appropriate for the application area by stepping down its voltage and current before passing the signal to the next stage. It is able to reduce the signal voltage, current, or both, without greatly altering its other qualities, such as amplitude, frequency, or noise. The device functions by converting the input voltage to the the output voltage using a ferrite transformer, a control IC, two high performance IGBTs switches, and a rectifier. When an input voltage is applied, the control IC continuously modulates the voltage using the on/off switching of the two high performance IGBTs. This allows for precise control of the signal level. The rectifier is then used to convert from AC to DC, further reducing electricity losses.

The PXV1220S-3DBN4-T is a high performance, low cost attenuator designed for a variety of electronic systems. It provides the ideal solution for providing adjustable voltage accuracy in applications such as power supplies, broadband systems, and an array of other electrical and electronic systems. Its high efficiency, wide operating range, and reliable performance make it a reliable and cost-effective solution for today\'s challenging power requirements.

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