DCPA10512EVM-861

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DCPA10512EVM-861 is a switch mode power supply (SMPS) evaluation board designed to enable a designer to evaluate the performance of the DCPA10512 controller IC. This evaluation board is a full featured, compact, and easy-to-use platform, offering a complete set of features and functions for making precise power supply measurements. This evaluation board is suitable for both AC and DC-DC applications.

Application Field

The DCPA10512EVM-861 evaluation board is designed for the testing of power converters such as AC-DC, DC-DC, and SMPS. This board provides a reliable platform for testing a variety of DC/DC converter designs, from high step-up/down converters to multi-phase converters. The evaluation board is also suitable for testing full-bridge, forward, flyback and zero voltage switching (ZVS) converters. This evaluation board also supports applications that require bidirectional power flow, such as isolated emitters, DC motor drives, and power systems.

Working Principle

The DCPA10512EVM-861 consists of a power supply circuit, and integrated controller IC (IC1). The power supply circuit for IC1 includes the rectifier bridge (BR1), a power choke (L1) to reduce input ripple, and a filter capacitor (C1). The DC output is regulated by the feedback voltage (VFB), which is read by the integrated controller IC (IC1). The output voltage can be adjusted using the on-board pot R3, while the power MOSFET (Q1) is controlled by the integrated controller IC (IC1) via the EN_PIN signal.

The evaluation board is powered by an AC power input, either directly from a wall plug, or from an isolated DC input, such as a portable battery. The integrated controller IC (IC1), which is used to control the power MOSFET (Q1), is designed to provide a high efficiency, low losses, and fast transient operation. The board features two power switches, a manual on-off switch (SW1) and a soft-start/tracking switch (SW2). These two switches allow the user to easily select between manual and auto-tracking operation.

The built-in temperature sensor (T1) monitors the output voltage and the temperature of the power MOSFET (Q1). This sensor is also used to protect the device by limiting the power dissipation in case of over-temperature conditions. To further reduce the load current, an optional external power diode (D2) can be added to the board. An external thermal operating sensor can also be added to the board to monitor the actual devices power dissipation.

Other features of the DCPA10512EVM-861 include on-board voltage regulation, short-circuit protection, and an optional secondary current sense feedback circuit. The voltage feedback circuit is available as an on-board option, while the current feedback can be added externally. The board also includes a selectable output current limit, a series of user interfaces, and a power LED indicator.

The DCPA10512EVM-861 evaluation board is capable of making highly accurate power measurements. It is an easy-to-use and powerful tool for design engineers. The DCPA10512 controller IC is capable of providing high efficiency, low losses, and fast transient operation. With its advanced features, the DCPA10512EVM-861 is the perfect choice for power converters.

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