AN33017UA-EVB-0

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The AN33017UA-EVB-0 evaluation board is part of the category of Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS. This board provides an AC/DC power supply design based on the AN33017UA IC, a single-channel flyback converter with PFC control and multiple output voltage options. The AN33017UA-EVB-0 board can not only be used for the evaluation and development of the AN33017UA IC, but also for the development of complex and/or multi-phase power supply and LED driver designs.

The AN33017UA-EVB-0 is suitable for the development of AC/DC applications requiring up to 60W output power. It incorporates a half-bridge LLC resonant converter with PFC control. The output voltage rail can be set using two selectable resistors on the board. The output voltage can range from 0.6V to 20V depending on the set resistors. It also includes an adjustable soft-start time and adjustable maximum peak current limit.

When it comes to the working principle, the AN33017UA-EVB-0 includes a buck PFC pre-regulator, followed by an LLC resonant converter stage and auxiliary circuits including the current sense and soft-start controls. The input AC voltage is rectified and smoothed using the PFC pre-regulator and then fed to the LLC resonant converter stage. The LLC stage runs at a high frequency with the voltage across the auxiliary transformer. This voltage is rectified to obtain the desired DC output and the current sense circuit helps to control the output current. The output stage uses a programming resistor to adjust the output voltage according to the desired setting.

The AN33017UA-EVB-0 evaluation board is a versatile platform for the development and evaluation of AC/DC power supply and LED drivers. It is designed to be easy to use and provides a number of features that make it suitable for a wide range of applications. The board is ideal for high-efficiency applications requiring up to 60W output power. Furthermore, the adjustable soft-start and peak current limit allow the user to fine-tune their designs for optimal performance.

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