DC1476A

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A DC1476A evaluation board can be used to evaluate or demonstrate how to design a specific type of power circuit. The board is an example of a "ready-made" power system based on a DC-DC step-down (buck) converter, which is designed to provide an output of adjustable voltage and current from an input of 5-60V, with the help of a switching power supply. The board can be supplied as a bare PCB, or with components already mounted.

The PCB is designed as a circuit board containing the input supply, the switching power supply, some filter components, and a voltage regulator. An adjustable pot inside the circuit can be used to change the output voltage provided by the on-board, DC to DC converter. Additionally, a set of on-board controls provides the ability to manually adjust all of the desired system parameters. This provides a very useful evaluation environment for testing and developing power systems solutions.

The typical working principle of the DC1476A board is based on the switching-mode power supply, which has two main stages, the boost converter stage and the buck converter stage. The DC1476A board also uses flyback and resonant converters, both of which require voltage-mode control with a controller. The buck converter stage of the DC1476A board is controlled by a Microchip MCP19117 to regulate the output voltage. This is done by controlling the clock frequency and duty cycle of the power switch.

In summary, the DC1476A evaluation board provides a fully functional, adjustable, voltage-mode digital power supply circuit. It is designed to provide an adjustable output voltage from 5 to 60V, and is also equipped with manual override controls. It is suitable for use in both evaluation and demonstration environments, providing an excellent testing platform for developing power solutions. The board also offers a range of other features such as primary side feedback, current sense, and temperature sensing components, making it a highly useful board for prototyping power projects.

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