DC1731A-B

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The DC1731A-B is an adjustable, isolated, DC/DC and AC/DC off-line switching mode power supply (SMPS) evaluation board from LEM. It is part of the company’s extensive range of evaluation boards for power supplies and power converters.

The DC1731A-B is designed for a broad range of DC/DC and AC/DC applications. It is ideal for applications such as ships, aircraft, and industrial systems, which require high-efficiency, low-cost, and reliable power conversion. With its wide adjustable input voltage, the board suits various DC/DC or AC/DC switching mode converter designs and provides comprehensive protection from overvoltage and overcurrent faults.

The board itself is based on a single-output power supply design and comprises a variety of different components. It features a 100 W digital circuit combined with an input voltage range of 115 VAC to 370 VAC. There is also a main power bridge, a main switch, a detector, a drive stage, and a power interface. The output power is adjustable between 31 VDC to 48 VDC.

The DC1731A-B is also equipped with an efficient switching component to convert the input power into DC current. The board also features protection against short circuiting, overvoltage, and overcurrent conditions. This includes an external overtemperature switch and an overvoltage detection and protection circuit. This ensures that the board’s performance is reliable and robust.

The board’s output voltage can be programmed, allowing it to be tailored to specific applications. A dedicated SPI interface is also included to allow remote control of the board’s settings. This makes the DC1731A-B suitable for a range of output voltage applications.

Overall, the DC1731A-B is a powerful and cost-effective solution for a variety of DC/DC and AC/DC switching mode power supply applications. Its adjustable input voltage, range of protection circuits, and remote control capability make it an ideal choice for a range of demanding scenarios. At the same time, its efficiency and robust design offer a reliable source of power across a wide range of temperatures and conditions.

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