GPFM115-12G Power Supplies - External/Internal (Off-Board)

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AC/DC converters play an important role in power electronics. Such converters can transform energy from alternating current (AC) to direct current (DC). Specifically, the GPFM115-12G converts AC into DC, providing a stable 12 volt DC voltage output. The GPFM115-12G series is rated for input voltage ranging from 9 to 18 volts AC, and the rated output power is 115 watts.

GPFM115-12G’s application fields include automotive and residential applications. Specifically, this converter is suitable for a variety of automotive electronic devices, such as car audio, navigation, alarm, air conditioning, parking sensor, antenna amplifiers and car chargers etc. It is also suitable for residential electronics such as projectors, DVD players and water pumps, making such devices suitable for AC input. Furthermore, GPFM115-12G can also be used in battery back up systems for domestic solar and wind systems.

GPFM115-12G working principles is based on a switched-mode design. The main components includes a high frequency transformer, input rectification, high frequency switching and output rectification and filtering. During the process, the high frequency switching is first rectified by the input circuit and then coupled to the high frequency transformer through a power FET. The transformer outputs a high frequency AC voltage that is rectified and filtered, resulting in a steady DC voltage output. Additionally, the power FET has a limited on time of the switching cycle to protect the module from damage due to over current and overheating.

The transformer in this system is designed for high frequency operation, which makes it possible to obtain a greater power transfer efficiency than at lower frequencies. Moreover, due to its small size, the GPFM115-12G series is suitable for small form factor applications. With its low standby power and efficient operation, GPFM115-12G is the perfect choice for a variety of automotive and residential applications.

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