FT838NB1-RT

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FT838NB1-RT is a power management integrated circuit (PMIC) application specifically designed for power supplies used in offline AC/DC converters and switch mode power supplies (SMPS).

This device is able to efficiently control output power conversions between AC and DC current. It features flexible programming, monitoring, protection and output regulation capabilities, mainly intended for non-isolated, single output applications. This product helps simplify the design of typical offline SMPS topologies, utilizing a single chip solution with minimal external components to reduce power losses.

The feature set of the FT838NB1-RT includes an array of internal blocks dedicated to direct current regulation and power ripple control. All internal logic, analog, and digital components are organized on a single die, reducing the complexity and external components related to the design, and thereby reducing the cost and size.

The working principle of the FT838NB1-RT application is to control power conversion. It takes an AC input voltage and converts it into a DC output voltage. This is done through a process of rectification, inversion, and regulation.

The process starts with rectifying the AC input voltage by converting it into pulsating direct current (DC). This is done by a diode rectifier. From here, an inverter is used to convert the DC voltage into a steady AC line. The AC line is then regulated by the load of the application. The AC voltage is then regulated by either Control and Power (C & P) or Power Factor Correction (PFC).

Finally, the regulated AC voltage is converted into the desired DC output voltage and current. This is done with a full-wave bridge rectifier. The output of this process is then regulated by a feedback system to ensure that the desired output is achieved.

The FT838NB1-RT application helps reduce the complexity of design and cost by providing a single chip solution with minimal external components. It is an efficient solution for non-isolated, single output applications and helps improve the performance, size and weight of the design.

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