PXE2048WS05

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DC DC Converters

DC-DC converters (also known as DC-DC power supplies) are devices that convert a direct current (DC) power supply to a different DC voltage. They are important because their wide range of applications allow many electronic components to be powered. The PXE2048WS05 is an example of one type of DC-DC converter. This article will discuss the application field and working principle of the PXE2048WS05.

Application Field

The PXE2048WS05 is mostly used in portable electronics, particularly in embedded systems. It is suitable for applications where size is a concern, such as flat panel displays, digital audio players, personal navigation devices, portable gaming consoles, and mobile phones. The PXE2048WS05 is also used in military, aerospace, and industrial applications.

Working Principle

The PXE2048WS05 is a synchronous DC-DC converter that utilizes synchronous buck topology. The PXE2048WS05 provides high efficiency and low output ripple for performance and noise-sensitive applications.

Its core components include two power switches, two capacitors, two inductors, a rectifier, a controller, and a single-phase diode bridge. The controller controls the power switches, which convert the input voltage into a switched mode of current. The rectifier converts the current of the switched mode into a direct current (DC). The diode bridge converts the DC current into a more regulated, predetermined DC voltage. The inductors and capacitors store energy and reduce the ripple of the output voltage.

The power switches used in the PXE2048WS05 are typically either MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistor), BiCMOS (Bipolar Complementary Metal Oxide Semiconductor), or silicon-controlled rectifiers (SCRs). The controller can be implemented with either a separate discrete-component system or an integrated circuit (IC) chip. The inductors and capacitors used in the PXE2048WS05 provide support for both voltage and current regulation.

The PXE2048WS05 also features several protection and control functions, such as over-voltage protection, soft-start function, over-temperature protection, over-current protection, short-circuit protection, and the ability to adjust the output voltage using external resistors. These functions help to maintain a consistent output voltage and current, and ensure the safety of the device.

Conclusion

The PXE2048WS05 is a type of DC-DC converter that is widely used in a variety of applications. Its working principle involves the control of power switches, rectification of the switched-mode current, and the storage of energy in inductors and capacitors. The PXE2048WS05 also offers several protection and control functions to ensure a stable and safe operation.

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