LEA100F-48-SN Power Supplies - External/Internal (Off-Board)

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An AC/DC converter is a device which converts AC power to DC power for use in electronic circuits. The LEA100F-48-SN AC/DC converter is a 48V DC power supply, designed for military applications. It features a wide input voltage range, high efficiency, and an EMI-filtered output.

The LEA100F-48-SN AC/DC converter has a power factor correction (PFC) module on its input, which enables the unit to be used in applications with wide AC power input ranges. This PFC module also helps to maintain low standby power consumption and reduces EMI radiation. The DC output voltage can be set via the front panel control or via a remote connector. The unit also features an over-current and over-voltage protection system, which will shut off the unit in the event of an over-current or over-voltage fault.

As its name implies, the LEA100F-48-SN AC/DC converter has an input range of 100 to 480 VAC. This means that it can be used in low AC voltages, such as 110V, or in higher AC voltages, such as 120V or 240V. The unit has an efficiency of up to 93%, allowing it to operate cooler while providing a high amount of power output. It also offers EMI filtering for 69 dB of EMI attenuation, allowing the DC output of the unit to be utilized in commercial or industrial applications.

The LEA100F-48-SN AC/DC converter is designed to operate in harsh environmental conditions. The unit is rated for an operating temperature range of -40℃ to 85℃, and it features an ingress protection rating of IP67. This means that the unit is protected against dust and water when used in an outdoor environment. The unit is also protected against surges and spikes thanks to its integrated crowbar circuit.

In terms of how it works, the LEA100F-48-SN AC/DC converter operates on a flyback converter topology. In a flyback converter, the energy stored in an inductor is transferred in a two-step process. First, energy is transferred from the AC power input to the DC output stage via a switch, which is then turned off to cause the energy stored in the inductor to be released and supplied to the output stage. The switching frequency of the converter can be adjusted to optimize its efficiency. After the energy is released, the cycle begins again.

The LEA100F-48-SN AC/DC converter is a rugged and reliable power supply, designed for military applications. Its wide input voltage range, high efficiency, EMI-filtered output, and ingress protection rating make it an ideal choice for applications that require a reliable DC power source.

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