Q025-5C

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DC-DC power converters are widely used in various applications. In this article, we will discuss the application field and working principle of the Q025-5C DC to DC converter.

The Q025-5C is a type of on-board DC-DC converter, designed for use on small transportation vehicles by providing a regulated 5 VDC supply voltage from a 24 VDC input source. This converter is suitable for motorsports, marine, RV, trucking and off-grid applications. It is a compact device with only 0.217 square inches of board space occupied.

The main purpose of this device is to convert 24V lead-acid battery input voltage into a regulated 5V output. It is capable of providing an output current up to 8A at an efficiency of 91%. It also features a maximum output power of 40W and an ambient temperature range of -20 to +75℃.

The working principle of the Q025-5C is based on a DC-DC buck converter topology. It uses two semiconductor devices, the main power switch and the output pre-regulator, to convert energy from the input voltage to the desired output voltage. The main power switch works by switching the energy of the input voltage back and forth between the source and the output. This is done by regulating the on-off time of the main power switch and thus controlling the output voltage. The output pre-regulator is then used to provide a constant voltage over a wide range of load conditions.

The Q025-5C is also designed to have protection features such as overvoltage, overtemperature and overcurrent protection. The overvoltage protection feature limits the output voltage to a safe level, preventing any damage to the circuits due to high voltage. The overtemperature protection ensures that the device operates at its ideal temperature. The overcurrent protection safeguards the device against damage due to excessive current flowing through it.

In summary, the Q025-5C is a highly efficient DC-DC buck converter designed for a wide range of 24 VDC input sources. It is capable of providing up to 8A of current and a maximum power of 40W. It also features several protection features such as overvoltage, overtemperature and overcurrent protection. This device is ideal for small transportation applications such as motorsports, marine, RV, trucking and off-grid applications.

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