LGA75A-5-SN

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AC/DC converters are devices used to convert alternating current (AC) power from an electrical wall outlet into direct current (DC) power. This is necessary since most electronic components used in appliances and gadgets require DC power. In the consumer market, AC/DC converters are commonly found in laptop chargers, cell phone chargers, and gaming consoles such as the PlayStation or Xbox. One of the most commonly used AC/DC converters is the LGA75A-5-SN.

The LGA75A-5-SN is a board-mounted AC/DC converter rated at 75 watts. It is designed to convert ambient AC voltage into a constant 12 VDC output voltage. The output voltage is adjustable within 1–10 V. It also has low ripple noise which helps preserve the long-term health of connected components. The LGA75A-5-SN also operates efficiently, helping to minimize power loss.

In terms of physical characteristics, the LGA75A-5-SN is a single-output device with a 2-row terminal block for primary and board connections. It is enclosed in a cylinder shape with a 118 mm length and a Diameter of 57 mm. Additionally, the LGA75A-5-SN has a mounting hole that is compatible with most mounting holes present in computers or other electronic devices.

The working principle of the LGA75A-5-SN AC/DC converter is based on the flyback topology. This allows the converter to take in AC input voltage from a wall outlet and convert it into a DC voltage before supplying it to the connected electronics. To achieve this, the flyback topology uses an inductor driven flyback converter. The inductor is used to store energy as it begins to discharge when the switch closes and increases the output voltage until it reaches the desired level.

The switch then reverses polarity and the voltage begins to reduce until it is sufficiently low. This happens very quickly, making the process highly efficient. The current from the DC voltage output is regulated using a comparator and a reference voltage to ensure stable power output.

The LGA75A-5-SN AC/DC converter is designed for use in applications that require a constant and reliable power output of up to 12 VDC. Its adjustable output voltage and low ripple noise make it ideal for laptop chargers, cell phone chargers, and gaming consoles. Additionally, its efficient working principle and board-mounted design make it a suitable choice for both amateur and experienced electronics project makers.

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