VI-26Y-MU-S Power Supplies - Board Mount

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DC-DC converters are essential components within modern power electronics applications. They are used to convert DC power from one voltage to another and provide solutions for a variety of applications. In this article, we take a look at the VI-26Y-MU-S application field and the working principle behind it.

The VI-26Y-MU-S is a high power DC-DC converter designed for use in mobile telecommunication and automotive applications. The unit features a wide input voltage range of 9.2 to 36 VDC and an output voltage range of 2.5 to 15 VDC, making it suitable for various applications. The unit is designed to provide up to 200W of output power, and its compact size allows for easy integration into a variety of systems.

The VI-26Y-MU-S employs a synchronous buck topology, which is a step-down type of DC-DC converter. This type of converter uses an inductor to store energy as a magnetic field during each switching cycle, and then converts this energy into the correct output voltage. It works by charging the inductor during the switching cycle and then discharging it into the output capacitor. The output capacitor provides the output current to the load and regulates the output voltage.

The VI-26Y-MU-S features synchronous rectification, which allows it to operate at higher efficiency levels than non-synchronous versions. Synchronous rectification works by using both the high and low side switches to control the inductor current during the switching cycle. During the charge and discharge of the inductor, energy is transferred between the input voltage source and the output voltage. The efficiency of the converter can be improved by increasing the switching frequency, since this reduces the time the inductor is storing energy.

The VI-26Y-MU-S also features soft start and output voltage regulation. Soft start allows the converter to gradually increase the output voltage to the desired level, which can reduce inrush currents and prevent the converter from tripping. The output voltage regulation ensures that the output voltage remains within a specified range, which can be adjusted based on the requirements of the system.

In summary, the VI-26Y-MU-S is a high-power DC-DC converter suitable for use in a variety of applications. It features an adjustable input voltage range, a wide output voltage range of 2.5 to 15 VDC, and a maximum output power of 200 watts. The unit employs a synchronous buck topology and synchronous rectification for improved efficiency. It also features soft start and output voltage regulation for safe and reliable operation.

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