FW300H1

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DC-DC converters provide an effective way to efficiently convert the voltage of an input power source to a higher or lower voltage for a desired output power supply. As an example, the FW300H1 DC-DC converter is a series of semi-regulated dc-dc converters designed to provide an adjustable output within a wide range input voltage range and with low power consumption. This article will explain the application field and working principle of the FW300H1 DC-DC converter.

Application Field

The FW300H1 DC-DC converter was designed specifically for use in automotive and vehicle applications, and is suitable for operating temperatures between -40°C and 105°C. The converter has a wide input voltage range of 8 to 32VDC, making it suitable for applications in vehicles such as cars, boats, and RVs. It is also widely used in industrial, security, communication, and military applications.

The FW300H1 DC-DC converter is specifically designed to be rugged and reliable with a small footprint. The device is housed in a compact, low profile package measuring only 1.3 inches wide by 0.9 inches high. The converter also utilizes UL94VO rated plastics, which provide protection against the harshest environments.

Another key feature of the FW300H1 DC-DC converter is the built-in over-temperature protection. This feature protection prevents the device from over-heating and thus ensures long term reliability.

Working Principle

The FW300H1 DC-DC converter works by connecting the input power source to its two input capacitors and an inductor via the input terminals. These two capacitors provide a filtering function to the input power, allowing the FW300H1 DC-DC converter to maintain a stable input voltage even when the input voltage level fluctuates. Once the input power is filtered, it is then fed through the inductor, where it is converted to a higher voltage at the converter’s output terminals.

As the input voltage fluctuates, the FW300H1 DC-DC converter intelligently adjusts the output voltage to maintain a steady output voltage level. The device utilizes two sets of feedback controls, the first controls the output voltage, the second adjusts the switching frequency to minimize the loss of efficiency due to power conversion.

The FW300H1 DC-DC converter also features a maximum current limiting feature which protects the converter from over-current and thus extending its life. In addition, the device also provides a soft-start feature which minimizes the inrush current at start-up.

Conclusion

The FW300H1 DC-DC converter is an effective solution for providing regulated and controlled output voltage across a wide input voltage range. It is specifically designed for use in automotive and vehicle applications and is suitable for temperatures ranging between -40°C and 105°C. The device utilizes two sets of feedback controls to ensure consistent output and also features maximum current limit and soft-start protections. This makes the FW300H1 DC-DC converter an ideal choice for applications in vehicles, industrial, security, communication, and military applications.

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