PXB15-48S3P3/NT

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DC-DC converters are electrical devices used to convert a direct current (DC) input voltage into a different DC output voltage. The PXB15-48S3P3/NT is a type of DC-DC converter designed to provide an isolated DC output voltage from a single DC input. It offers a wide input voltage ranging between 15 to 48volts, and a wide output voltage ranging between 3.3 to 36volts.

Applications

The PXB15-48S3P3/NT converter can be used in a variety of applications in motor control, power conditioning, battery charging, data processing, aerospace, and other industries. Its isolation output feature makes it particularly useful for applications that require separating the input and output mounted circuits and for applications that require fast switching speeds at low switching frequencies. It is also suitable for portable and DC powered equipment, for instance in telecommunication, audio, and military systems.

Working Principle

The PXB15-48S3P3/NT converter relies on a quasi-resonant (QR) topology to provide its isolated output voltage. This topology incorporates several components and stages, each of which performs a specific function to yield an isolated output voltage from a single DC input. First, the DC input is connected to a full bridge rectifier which converts it into a pulsed DC voltage. This pulsed DC voltage is then connected to the resonant capacitor and a resonant inductor. The purpose of the resonant capacitor and inductor is to form a resonant circuit that produces a resonance frequency. This resonance frequency is controlled by the Q or quality factor of the resonant circuit to determine the switching frequency and duty cycle of the switch control signals. The switch control signals are then connected to the power MOSFETs, which are switched on and off at the resonance frequency and duty cycle to produce an isolated DC output voltage.

Conclusion

The PXB15-48S3P3/NT converter is a DC-DC converter designed to provide an isolated DC output voltage from a single DC input. Its wide input and output voltage range make it suitable for a variety of applications, including motor control, power conditioning, and battery charging. It utilizes a quasi-resonant topology that relies on a resonant circuit to switch the power MOSFETs, producing an isolated DC output voltage. This makes the PXB15-48S3P3/NT converter a versatile and reliable choice for a variety of DC-DC conversion applications.

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