SPN50-15S

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AC/ DC Converters

The SPN50-15S is an AC/DC converter, capable of step-down voltage conversion, which is designed to convert alternating current (AC) of a given input voltage to direct current (DC) of a predetermined lower output voltage. It is a high efficiency, non-isolated DC/DC buck converter. The purpose of an AC/DC converter is to convert lower voltage AC sources to higher voltage DC sources, which is necessary in order to run low voltage electrical equipment on high voltage main lines, such as in telecom applications, or to provide a lower voltage DC source in otherwise high voltage power distribution systems.

Application Field

The SPN50-15S converter can be used in a variety of applications, including aerospace and defense, industrial automation, railway, solar-power generation, and telecommunications. It is specifically designed for non- isolated applications, such as in telecom and data communication applications. It is also especially suitable for powering remote devices such as radio transmitters, transponders, remote terminal units and remote sensors.

The SPN50-15S is also very efficient in converting AC power sources to DC, with a maximum efficiency of up to 95%. This makes it a great choice for powering remote locations where electricity is not readily available, as it can minimize energy loss. There are also multiple protection features included with the SPN50-15S, such as short-circuit protection and over-voltage protection, making it safe for a wide range of applications.

Working Principle

In broad terms, an AC/DC converter takes an AC input signal, converts it to a DC output of a different voltage, and then steps it down or up to the required DC voltage. The SPN50-15S converter is a buck converter, which works by controlling a switching transistor in order to regulate the voltage of the output signal. The transistor switches between two states depending on the input AC voltage, enabling the voltage conversion in a single stage. This type of converter is known as a non-isolated converter, meaning that the input and output signals are the same ground reference. This makes the SPN50-15S converter well suited for applications where electrical isolation between input and output signals is not required.

The SPN50-15S uses a synchronous rectifier to ensure very high efficiency and minimum power loss, which is essential for remote and high-power applications. The internal controller constantly monitors the input voltage and output current and adjusts the transistor and duty cycle to maintain a constant output voltage. This makes it a very reliable, as well as efficient, converter for a wide variety of applications.

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