BD9E301EFJ-EVK-001

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The BD9E301EFJ-EVK-001 is an Evaluation Board for DC/DC & AC/DC (Off-Line) SMPS. It is designed to evaluate the performance of the new BD9E301EFJ integrated SMPS controller for applications requiring high efficiency and low noise. The board uses two types of power components: a main power FET and a switching control IC. The FET is used to regulate the output voltage of the SMPS, while the switching IC is used to control the switching of the main FET and to provide an output voltage feedback signal.

The BD9E301EFJ-EVK-001 utilizes the Buck-Boost topology for both AC/DC and DC/DC applications up to 50W. It is a non-isolated output board, which is optimized for efficiency in a resistive load. The resistive output load is given by an application-specific resistor, providing a constant output voltage in all load conditions. As the output voltage is constant, a high efficiency rating of greater than 98% is achieved throughout the entire load range.

The up converter on the BD9E301EFJ-EVK-001 board is optimized to limit losses, while still providing a very low ripple and high efficiency. The board is designed to accept any input voltage from 9V to 48V, and utilizes a synchronous rectified FET that switches in both forward and reverse conduction modes. The result is an output voltage ripple of less than 20mV, and an efficiency rating of greater than 90% at full load.

The BD9E301EFJ-EVK-001 utilises an on-board power MOSFET and switching control IC for regulation of output voltage. A MOSFET is used to switch the power on and off, while the switching controller regulates the main power FET and provides a feedback signal. The feedback voltage is then compared to the output voltage to determine the necessary duty cycle for the MOSFET in order to keep the output voltage at a constant level. This allows for higher efficiency as the output voltage is efficiently regulated and does not require a lot of power to detect or adjust.

The BD9E301EFJ-EVK-001 board provides protection features such as over-voltage and over-current protection. Under-voltage lock-out and hiccup mode is also included to protect the device from input voltage fluctuations. The board has been designed to reduce system noise by the use of advanced switching techniques, resulting in a low EMI level for noise-sensitive applications. The board also includes pre-set functions for easy configuration of how the device should operate.

The use of the BD9E301EFJ-EVK-001 Evaluation Board is ideal for applications requiring a high efficiency off-line SMPS. With its low output ripple, high efficiency, and integrated safety protection features, the board makes an ideal solution for any type of application. The board is also easy to configure, with a large number of pre-set functions to simplify setup.

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