EPSA120050UE-P5P-EJ

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EPSA120050UE-P5P-EJ Application Field and Working Principle

EPSA120050UE-P5P-EJ is an AC DC Desktop, Wall Adapters. It is designed for a variety of applications ranging from home, factory automation developments, and light commercial & industrial applications.

EPSA120050UE-P5P-EJ is a high efficiency, single output desktop switched-mode power supply that delivers up to 50 W output power with an adjustable output voltage of 12 V between 2.2 and 13.8 V. This model is particularly suitable for general applications such as communication, measurement and industrial equipment. It is ideal for battery charging, power supply for small PCs, temperature controllers, laser devices and security systems.

Working principle
EPSA120050UE-P5P-EJ’s working principle is based on switch-mode power supply (SMPS) technology. An SMPS is a type of electrical power supply that uses switching devices to control the conversion between AC mains and low voltage DC outputs. Switching devices, such as transistors, MOSFETs, and thyristors, are used to rapidly switch power on and off in a repetitive fashion to generate a regulated voltage or current. This process is known as pulse width modulation (PWM). The power switching devices are controlled by an integrated circuit, typically referred to as an SMPS controller, to ensure that the output voltage remains stable.

The converter AC input voltage is regulated by various circuits - such as capacitors, resistors, and EMI filters - during the rectification process. The resulting DC voltage is then converted into a low voltage DC output by the SMPS controller. The power switching stages on and off in a precise time to produce an output voltage without the need to control the power input voltage, thus allowing for a wide variety of AC input voltage (85 V AC to 265 V AC) and input frequencies (47 Hz to 63 Hz). The output voltage set point for the EPSA120050UE-P5P-EJ is adjustable via a trimmer and the output current limit can be set using an external resistor.

EPSA120050UE-P5P-EJ operates at high efficiency as it combines low power losses in the power switching stages with a high current limit and an energy efficient design. The device has built-in features such as pre-set thermal protection, overload protection, and output ripple current limiting (topology adjustment). It also includes a built-in auto-restart function, which can automatically recover from an overload or short circuit condition.

Conclusion
EPSA120050UE-P5P-EJ is designed for a variety of applications and is particularly suitable for general applications such as communication, measurement and industrial equipment. It is an AC DC Desktop, Wall Adapters with built-in features such as pre-set thermal protection, overload protection, and output ripple current limiting (topology adjustment). Its high efficiency results from a combination of low power losses in the power switching stages and an energy efficient design.

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