FAN7930BMX-G Integrated Circuits (ICs)

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Power Factor Correction (PFC) is an important technology in power supply design, which can optimize the power supply design and reduce harmonic pollution. It can also improve power efficiency and reduce power consumption. Therefore, many commercial and industrial power supplies use PFC solutions to ensure power supply performance.

FAN7930BMX-G, which belongs to PMIC - PFC (Power Factor Correction), is a high efficiency PFC controller integrated with synchronous rectification control circuit. It is designed for universal offline AC/DC power supply applications with power levels up to 30W. Its advanced features like extended output voltage range, low start-up current and wide operating temperature range make it suitable for many industrial and consumer applications.

FAN7930BMX-G integrated a control algorithm to optimize power factor, line and load regulation, and other performance. Its power factor correction function is designed as an asynchronous boost converter circuit and uses a fixed valley current method. In addition, synchronous rectification control circuitry is used to reduce power dissipation, therefore improving efficiency. FAN7930BMX-G also includes temperature compensation and output voltage protection to further ensure performance stability.

In order to optimize the power factor correction performance, FAN7930BMX-G includes several unique features like frequency foldback circuitry, phase angle ratio, voltage regulation window, and optimized switching frequency control. Frequency foldback circuitry is used to reduce the switching frequency when the converter is lightly loaded. This improves power factor, as well as reduces noise, EMI and exceeds the standby mode energy efficiency requirements. The phase angle ratio prevents power conversion from dipping under certain loading conditions and modulates the current according to the load, which further improves power factor. The voltage regulation window feature provides hysteresis for proper regulation under different loading conditions. The optimized switching frequency control adjusts the switching frequency according to the output voltage, reducing noise and EMI.

FAN7930BMX-G has a wide range of application fields including, but not limited to, industrial converters, consumer and business power supplies, computer power supplies, laptop adapters, solar inverters, and wind inverters. It is suitable for applications with power levels up to 30W and its synchronous rectification control circuit and advanced features make it ideal for efficient operations.

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