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DC DC Converters

The ability to convert DC power of one voltage to another makes DC DC converters an invaluable asset in a wide array of applications. One of the best examples is the PXA15-48WS15/NT, a DC DC converter that can step down higher input voltage levels (up to 60V) to a low output voltage (15V). It is highly efficient, making it suitable for critical applications where no power should be wasted.

Applications

The PXA15-48WS15/NT is used in countless applications ranging from automotive electronics, to military avionics, to medical devices. It is also suitable for any application where precise control of output voltage is needed, such as communications systems, power supplies, and even solar power conversion.

The PXA15-48WS15/NT excels in extreme conditions. It is rated for operation in temperatures ranging from -40°C to +85°C, and can maintain output accuracy within ±2% at input voltages between 10V and 60V. It is also highly reliable, with a mean time before failure (MTBF) of 25,000 hours, and a 3-year warranty for most applications.

Working Principle

The PXA15-48WS15/NT DC DC converter functions by converting current from a higher input voltage level to a lower output voltage through a series of steps. It starts by using an oscillator to generate Pulse Width Modulation (PWM) signals. These signals are then sent to the power stage, which utilizes a high efficiency full bridge converter to transform the input voltage into an output voltage.

The output of the power stage is then connected to two opposing MOSFETs. This allows the output voltage to be regulated, as when the duty cycle of the PWM signals increases, the MOSFETs open and increase the voltage, and when the duty cycle decreases, the MOSFETs close and reduce the voltage. Additionally, to maintain a stable output voltage the PXA15-48WS15/NT utilizes a feedback loop. The feedback loop takes the information from the power stage and sends it to the oscillator, which adjusts the PWM signals in response to the changing output voltage.

Conclusion

The PXA15-48WS15/NT is a powerful and reliable DC DC converter that is highly suited for applications where precise output voltage control is required. From medical equipment to power supplies, its ability to efficiently convert input voltages to lower output voltages makes it a useful and versatile tool in many different applications.

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