BD71815AGW-EVK-101

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The BD71815AGW-EVK-101 evaluation board is a high power, efficient board designed to evaluate the BD71815AGW integrated circuit for offline AC/DC switch mode power supplies (SMPS). This board has the capacity to provide a regulated, high operating performance power supply output over a wide, adjustable input voltage range. Its flexible design and construction allow the user to easily adjust the power factor, THD, and efficiency of a given AC/DC SMPS.

BD71815AGW-EVK-101 is an example of what can be considered an “optimal” solution for offline AC/DC power supply design. It utilizes advanced control circuit topology and advanced MOSFET-based power conversion technology to provide excellent power conversion efficiency. The low parts count, high integration, and outstanding thermal performance allow for simplified construction of a power supply.

The working principle of the BD71815AGW-EVK-101 evaluation board is fairly simple. The board is designed to detect an input line voltage and then adjust internally to maintain a predetermined output level. The IC contains a PWM (Pulse Width Modulation) converter, a rectifier, an optoisolator, a current sensing circuit, and an error amplifier. The PWM converter is used to generate pulses of a certain pulse width, or duty cycle, which is regulated in order to control the power supplied to the load.

The AC voltage is rectified into a DC voltage, and then the current sensing circuit measures the load current, providing feedback to the error amplifier so that the transfer of power can be controlled correctly. The optoisolator isolates the power converter circuit from the control circuit, allowing for independent control. The output voltage is regulated to a set level by varying the duty cycle of the PWM controller.

The BD71815AGW-EVK-101 evaluation board is suitably designed to evaluate the BD71815AGW integrated circuit for offline AC/DC switch mode power supplies (SMPS). Its application field includes supplies suitable for everything from desktop computers to small appliances, and its efficient design and wide adjustable input voltage range make it well suited for testing a range of applications. The high-power capacity, high integration, and low parts count make it an ideal choice for high-efficiency, compact switch mode power supply solutions.

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