SP6655EB

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The SP6655EB is an evaluation platform designed for DC-to-DC and AC-to-DC (offline) SMPS applications. It enables customers to easily evaluate the performance of Analog Devices\' Power by Linear™ SMPS products. With the SP6655EB, users can conduct comprehensive evaluation of Resonant Mode Controllers (RMCs) and Universal Resonant Mode Controllers (URMCs).

The SP6655EB has a comprehensive set of features that make it easy for customers to evaluate Power by Linear SMPS products. The board is equipped with two pre-configurable input connectors, allowing for AC-to-DC and DC-to-DC conversion. It also includes mechanical and electrical protection features that prevent common causes of power failure. Additionally, the SP6655EB includes a comprehensive set of electrical test points, allowing customers to easily analyze the performance of the board in different operating conditions. The board also has the flexibility to support a variety of different SMPS topologies, including PFC, CCM, and DCM.

The working principle of SP6655EB is based on the fact that it emulates the functions of a Resonant Mode Controller (RMC). RMCs are used to control the output voltage of small to medium power switching power supplies. The way they do this is by controlling the switching frequency of the MOSFETs. The SP6655EB is capable of controlling both PFC and DCM resonant converters, allowing for a wide range of outputs.

When connected to an AC power source, the AC input voltage is first burst rectified, forming an unregulated DC bus voltage. This DC bus voltage is then regulated with the RMC-controlled MOSFETs. The MOSFETs are operated in zero-current turn-off mode, which provides a soft turn-off that minimizes audio noise. Furthermore, the SP6655EB also includes an under-voltage lockout (UVLO) function that prevents incorrect manipulation of the board.

The SP6655EB is an ideal evaluation board for customers wanting to evaluate Analog Devices\' Power by Linear SMPS products. It provides users with a comprehensive set of features suitable for analyzing a wide range of SMPS applications. Additionally, it is designed with special features such as UVLO and soft turn-off, ensuring the reliability and durability of connected SMPS designs.

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