PFS7328H

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Power Factor Correction (PFC) is the process of regulating a power supply to achieve high efficiency by controlling the amount and timing of current drawn from the input. One of the most popular solutions for PFC is the PMIC (Power Management Integrated Circuit), which is an integrated circuit that houses a variety of power management functions, including voltage regulation, current monitoring, overvoltage/undervoltage protection and fault protection. The PFS7328H application is an example of such a PFC PMIC.

This application of PFS7328H was designed to optimize the power factor correction performance at higher line conditions. It features a multi-level topology that provides high power factor within the range of 100V – 305V. It also supports input voltage surge up to 375V and continuous overvoltage up to 400V and provides over 90% efficiency across a wide range of input voltage conditions. It is capable of controlling both voltage and current, by using a multi-level topology and dynamic voltage or current sharing. It also features a Pulse Frequency Modulation (PFM) control loop to adjust the output voltage and ensure a constant power factor over a wide range of input voltage conditions.

This application of PFS7328H is designed to reduce power consumption and save energy by maintaining a near constant power factor at different input voltage conditions. It utilizes a peak current limitation feature to prevent overcurrent situations. Additionally, this application provides several protection features including over voltage protection, short circuit protection, and Thermal shutdown. It also provides a programmable soft-start feature to avoid inrush power surges when the system is turned on. This application also enables the user to have different modes of operation, such as pulse frequency modulation, cuk, and ccm topology, which can be easily changed in order to achieve different goals and provide different levels of efficiency.

In addition to its wide range of features, the PFS7328H application is also certified compliant with both IEC 61000-3-2 and IEC 61000-3-3 Class D standards. This certification ensures that it meets the expectations of global power standards and can be used in any power condition. As such, it is a suitable solution for both commercial and residential applications.

Overall, the PFS7328H application field and working principle provide a steady and reliable power factor correction solution suitable for various types of applications. By providing peak current limitation, overvoltage protection, Thermal shutdown and other features, it helps to ensure that the power supply is efficient and safe at all times. Additionally, its global compliance certification and wide range of features make it a suitable solution for both commercial and residential applications.

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