FAN4810N

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Power Factor Correction (PFC) is a necessary and important component of modern power management integrated circuits (PMIC). It helps improve the efficiency and reliability of circuits by ensuring that the power drawn from multiple power sources is accurately regulated. This ensures that the target device, such as an electronic computer, receives the exact amount of power it needs in the most efficient way possible. The FAN4810N is one such PMIC, designed to provide high-performance and cost-effective power factor correction. This section will discuss the application fields of the FAN4810N and its working principle.

Application Field of FAN4810N

The FAN4810N is an advanced power factor correction (PFC) module from On Semiconductor. Its primary application is as a power supply for AC/DC conversion circuits. It is also used in a variety of power distribution and power management applications, including demand response, battery charging, and LED lighting. Due to its high efficiency, low quiescent current, and small size, the FAN4810N is especially useful for applications that require high efficiency in a small form factor.

Furthermore, the FAN4810N can be used in a wide range of input AC and DC voltages, ranging from 85 VAC to 370 VAC and 12 VDC to 375 VDC. This makes it an ideal choice for applications with different input voltage requirements, such as smart energy meters, battery chargers, and power supplies.

In addition to its wide input voltage range, the FAN4810N has a high switching frequency of up to 300 kHz, making the output ripple very low. This is particularly useful for applications that require clean and stable power, such as LED lighting, metering systems, and voltage sensitive equipment.

Overall, the FAN4810N is an ideal choice for a wide range of applications, from high-efficiency power supplies to power distribution and power management systems.

Working Principle of FAN4810N

The FAN4810N is a power factor correction (PFC) module with an integrated buck-boost converter. The module uses a hybrid control technique, combining a PFC control which manages the power factor, voltage, and current of the power supply with an auxiliary control which handles the input and output power transitions. This hybrid control method helps to ensure high efficiency, reduced harmonic distortion, excellent load and line regulation, low output ripple, and high power factor.

The PFC part of the module consists of a buck converter and a continuous conduction mode PFC controller. The buck converter is used to control the average current and voltage of the power supply. The PFC control regulates the output voltage of the power supply with high-frequency transitions, while the buck converter regulates the output current with low-frequency transitions. This combination of low- and high-frequency transitions makes for an efficient power supply that is able to handle even large loads without sacrificing the power factor.

The auxiliary control handles the input and output transitions. It ensures that the power supply switches on and off in a controlled manner, while automatically compensating for different load conditions. The combination of the PFC control and the auxiliary control makes the FAN4810N a highly efficient and reliable power supply solution.

In conclusion, the FAN4810N is an advanced power factor correction (PFC) module designed to provide efficient, reliable, and cost-effective power supply solutions. Its wide input voltage range and high switching frequency make it an ideal choice for a variety of applications, from high-efficiency power supplies to power distribution and power management systems. Furthermore, its hybrid control scheme of PFC and auxiliary control ensures high efficiency, reduced harmonic distortion, excellent load and line regulation, low output ripple, and high power factor.

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