BD9A101MUV-EVK-001

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The BD9A101MUV-EVK-001 is an evaluation board designed for off-line power supplies such as DC/DC and AC/DC.

The power supplies generated by this board have an efficient and reliable performance, which is achieved by the combination of several features. The board integrates a universal AC input with a high voltage range of 175 to 295 VAC and a wide frequency range of 45 Hz to 65 Hz. Furthermore, it uses a high voltage MOSFET that supports a wide voltage range up to 1000 V and can deliver the power of up to 5 A.

In addition, the board has low total harmonic distortion (THD), and a high power factor and low output voltage ripple. As a result, it is suitable for applications ranging from consumer electronics to industrial systems. The comprehensive protection features, such as over-voltage, over-current and over-temperature protections, ensure the safe operation of the system.

The working principle of BD9A101MUV-EVK-001 is based on a full-bridge AC-DC switching converter. This converter is used to rectify and regulate the AC input voltage to the desired DC output voltage. The bridge rectifier and input EMI filter will filter out the low frequency component of the AC input, reducing high frequency associated noise. The high frequency switching in primary side is regulated by an active clamping control method, providing a fast response and low switching losses.

The power from the primary side is delivered to the secondary side via a high voltage transformer, which is used to achieve isolated power output. The secondary side rectification and filtering circuit then converts the stepped-down alternating current to DC output. The current-mode control loop ensures a fast transient response and stable operation. Thermal protection is also incorporated to the system, and a feedback pin is provided to monitor the output voltage.

The BD9A101MUV-EVK-001 is an ideal evaluation board for a wide range of DC/DC and AC/DC supplies in different applications. Its superior performance, high reliability and cost-effectiveness make it a great choice for many power systems.

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