MENB1121A1249F01

AC DC Desktop, Wall Adapters

The MENB1121A1249F01 is an AC-DC desktop or wall adapter, designed primarily to power low-power electronics such as consumer electronics, mobile phones, digital cameras, game console accessories, and audio player accessories.

The MENB1121A1249F01 AC-DC adapter features a universal AC input with output range of 5V DC to 12V DC and 1.25A current output. With its wide voltage range and adjustable current output, the ac adapter is designed to meet the power needs of a wide variety of devices. The adapter also has thermal protection, overload protection and short-circuit protection, making it safe and reliable.

Working Principle

The working principle of the MENB1121A1249F01 is based on the use of a step-down transformer. It is designed to reduce the input voltage from the mains power to a lower voltage which is suitable for powering the device. The transformer works by taking alternating current, which is provided by the electrical mains, and passing it through a coil of wire that is wound around an iron core. This subsequently creates a magnetic field inside the iron core, which induces an electromotive force (EMF) to produce an alternating current.

The alternating current is then passed through a rectifier which is used to convert the alternating current into direct current. The rectifier is composed of a diode bridge, which is a group of four diodes arranged in such a way that it allows current to pass from the input side to the output side while blocking the reverse flow of current. This allows for the conversion of the alternating current to a direct current, which is then regulated by an integrated circuit to ensure the consistency of the output.

Applications

The MENB1121A1249F01 AC-DC adapter can be used for a number of applications such as powering consumer electronics, mobile phones, digital cameras, game console accessories, and audio player accessories. It is perfect for powering small-scale electronics that require low power, as its wide voltage range and adjustable current output can easily accommodate a variety of devices.