KIT34727FCEVBE

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KIT34727FCEVBE is a highly integrated high performance Evaluation Board for DC/DC & AC/DC (Off-Line) SMPSs. It is specially designed for industrial and consumer applications.

This evaluation board has a two-stage converter featuring a three-phase interleaved power factor correction (PFC) boost followed by a full bridge based on a synchronous rectifier topology. The two-phase Buck converter together with the External Sequence Control (ESC) circuit and the opto-isolator interface complete the full features of the evaluation board.

Application Field

KIT34727FCEVBE offers great flexibility and scalability in industrial, consumer, and power supply applications. Based on different requirements, the board can be used in a variety of application areas including:

• Industrial Control Systems
• Automation Equipment
• Chargers and Battery Applications
• Consumer Electronics
• Lighting Systems
• Lighting Dimming Systems
• HVAC Systems
• Power Supplies

Working Principle

KIT34727FCEVBE works by utilizing the principles of operation of the Interleaved PFC Boost and the Full Bridge Boost topologies. The interleaved PFC boost is a two-stage structure. It begins with a continuous current mode controller for controlling the individual phases, which are then interleaved together to create the desired output voltage. After the interleaving, the output voltage is boosted using a full bridge.

In addition to these two main topologies, the board also includes a two-phase Buck converter, a External Sequence Control (ESC) circuit, and an opto-isolator interface.

The two-phase Buck converter works by using a pair of buck voltage regulators with complementary control signals to reduce the output voltage of the bridge. This converter is used primarily for power factor correction. The ESC circuit allows for the operation of DC/DC converters in an ordered sequence, thus providing a reliable power delivery to the system. Finally, the opto-isolator interface allows for a reliable communication between the control circuit and the power stage.

In summary, KIT34727FCEVBE offers a robust, versatile and cost-effective solution for a variety of power applications. The two-stage design based on the interleaved PFC boost and full bridge provides an efficient and reliable power delivery, while the two-phase buck converter and ESC circuit enable improved power factor correction and proper sequencing.

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