VMS-81-30

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AC DC Converters

An AC DC Converter is a device that converts alternating current (AC) electrical energy to direct current (DC) electrical energy. The most common type is a step-down, or ‘buck’, converter which reduces an AC voltage to a lower DC level. The AC DC Converter is used in applications such as Solar Power, Electric Vehicle, Industrial, Power Grid, Battery Systems, and other power management applications.

One of the most popular AC DC converters is the VMS-81-30, which is a high-efficiency and adjustable DC/DC converter manufactured by VMS Automation Ltd. It is designed to be used in applications such as solar power, grid-tied and battery back-up systems.

The VMS-81-30 is designed to operate from 9V AC to 160V AC input with a standard output of 24V DC. It offers a high efficiency rating of 81.5%, and has an adjustable output voltage range of 19V to 30V DC, adjustable by a simple potentiometer. It also offers a variety of protections such as overload, short circuit, over temperature, over/under voltage and over current.

The working principle of the VMS-81-30 begins with an AC input of the desired voltage range. It is then rectified to DC voltage, filtered, and sent to a transformer to create a high voltage AC. This step reduces the current draw and increases power efficiency. The transformer output is then rectified to DC voltage again and filtered, and finally sent to the adjustable output. The output voltage is adjustable using the potentiometer. At the end of the process, the output voltage is equal to the desired level.

In Solar applications, the VMS-81-30 could be used to step-down the AC produced by the Solar panels to the standard 24V required for charging the battery bank. In a Grid-Tied system, the same converter can be used to step up the standard 24V DC output from the batteries to the 115V/230V AC required for transmission. It could also be used in an AC/DC power supply system to convert the AC mains input voltage to a DC voltage of a desired level.

VMS-81-30 is ideal for silent DC/DC conversion, due to its high efficiency and wide adjustable output voltage range. Its wide input voltage range and adjustable output make it a reliable choice for off-grid and solar applications. With its low profile, this AC DC converter is a great choice for mobile, temporary, or residential energy systems.

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