EXB30-48S12-R

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DC DC converters convert a DC source, such as a battery, to a different DC voltage for use in various applications. EXB30-48S12-R is an isolated DC DC Converter with wide input voltage range. It uses a low-cost surface-mount technology that makes the module construction much smaller and lighter than a traditional converter.

Application

The EXB30-48S12-R is suitable for applications where a wide input voltage range needs to be used, such as automotives, communications, industrial controls, power supply for computers and peripherals, etc. It is also widely applied in the field of solar energy, wind energy and micro-grid.

In particular, it is ideal for certain automotive and industrial applications. It is designed to work in automobiles and industrial distributed power systems, which require uniform power from the secondary side regardless of how much power is available from the primary side. It is also suitable for applications that require high efficiency, high power density, and high reliability.

Working Principle

The EXB30-48S12-R DC DC Converter converts a wide input voltage range to a lower, uniform output voltage. It works on the principle of a switching-mode power supply (SMPS). Just like other DC DC converters, it uses a power transistor to switch the primary DC voltage on and off at a frequency regulated by the converter’s control circuitry. The converter also contains a transformer with a secondary winding that produces the desired output voltage.

In the EXB30-48S12-R, the rectifier diodes rectify the output of the transformer to form a DC voltage and its transformer secondary prevents the output voltage from running back to the primary source. This feature is know as isolation, which is an important feature that eliminates the effects of certain electrical disturbances such as ground-loop problems.

Additionally, the EXB30-48S12-R provides protection against overloads, short-circuits, and undervolts. The overload and short-circuit protection is based on the principle of current limitation, where the current is limited to a certain level when an overcurrent situation is encountered. Undervolt protection is provided by the on-board voltage sensing circuits, which are responsible for monitoring the input voltage and disabling the converter if it falls below a certain level.

The EXB30-48S12-R employs a high-frequency switching frequency that increases the input range, up to 48v, and increases the power density compared to conventional converters. It also incorporates high-efficiency components which improves the overall efficiency of the converter.

Conclusion

The EXB30-48S12-R is an isolated DC DC converter with wide input voltage range. It is suitable for automotive, industrial, and solar and wind energy applications. It works on the principle of a switching-mode power supply with a transformer and provides overload, short-circuit, and undervolt protection. The high-frequency switching frequency and high-efficiency components help increase the power density and improve the efficiency of the converter.

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