VE-2WJ-EX-B1

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DC DC converters are electronic devices used to convert a DC power supply into a DC output. They are also known as DC-DC or DC/DC converters. This type of technology is especially useful for applications that require a high level of safety, such as aircraft, trains, and medical equipment. The VE-2WJ-EX-B1 is one model of a DC-DC conversion unit. Its application field and working principle are explained below.

Application field

The VE-2WJ-EX-B1 is a two-watt, 5-volt unit, designed for applications in industrial, medical, automotive, and consumer markets. It is suitable for use in applications requiring an input voltage ranging from 3.3V to 5.5V, and an output voltage from 2.5V to 5.25V. It features low dropout voltage, low power dissipation, and high efficiency. It is also very compact, measuring only 17mm x 9.5mm x 4.9mm.

The VE-2WJ-EX-B1 is capable of providing both step-down and step-up conversion, with an output current of up to 0.4A. It has short-circuit and over-current protection, as well as a thermal shutdown feature. The device also has excellent ripple rejection, enabling it to maintain high output accuracy over a wide frequency range.

Working Principle

DC-DC conversion is based on the principle of capacitive recycling, or ‘flyback’, where energy is recycled from an inductor to an output capacitor. In the case of the VE-2WJ-EX-B1, the input voltage is first stepped-down to the desired level and then re-converted back to a higher output voltage. The device uses two MOSFETs (metal-oxide-semiconductor field-effect transistors) to perform this conversion. The MOSFETs are responsible for switching the current flow, while an integrated inductor/capacitor (LC) network maintains a steady current flow, allowing for efficient conversion and high output accuracy.

The VE-2WJ-EX-B1 has built-in protection features that keep the unit safe and reliable. The MOSFETs are designed to reduce power dissipation and avoid thermal shutdowns, while the over-current protection ensures that the current does not exceed the maximum safe limit. Additionally, the built-in filter ensures that any electrical noise is kept to a minimum.

The VE-2WJ-EX-B1 is an excellent choice for applications requiring high levels of safety and accuracy, such as medical and industrial applications. Its small size and low power dissipation make it ideal for battery-powered devices. Furthermore, its wide frequency range and excellent ripple rejection make it suitable for use in a variety of applications.

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