XRP9711EVB-DEMO-1

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The XRP9711EVB-DEMO-1 is an evaluation board designed by Texas Instruments to evaluate the performance of multiple DC/DC and AC/DC (off-line) switch mode power supplies (SMPS). The evaluation board is designed with both leaded and non-leaded components, making it a versatile tool to test the performance of several different switch mode power supplies, regardless of the input and output configurations used. As such, the XRP9711EVB-DEMO-1 is an ideal tool for engineers and other product-development professionals to use in evaluating, analyzing, designing and prototyping their switch mode power supplies.

The board itself features the XRP9711EVB device, which is a highly integrated active-clamp flyback controller IC, supporting both Primary Side Regulation (PSR) and Primary Side-Induced Active Clamp operation modes. This device allows for a high power density, with a maximum switching frequency of 1MHz, and supports input voltages from 11V to 90V, and output voltages of up to 600V. The board also features several other passive components, such as an output transformer, and various resistors and capacitors.

In terms of the application field of the XRP9711EVB-DEMO-1 evaluation board, it is suitable for a wide range of applications, including: Uninterruptible Power Supplies (UPS), LED lighting, Printers, LCD TVs, and other appliances and consumer electronic designs where a high level of efficiency and power match is required. Additionally, the evaluation board can also be used on the Secondary Side of an AC/DC supply, such as in the designs for AC-DC adapters.

In terms of the operating principle of the XRP9711EVB-DEMO-1 board, it again relies on the ability of the XRP9711EVB integrated circuit, which interprets the output voltage and current signals, and adjusts the duty cycle of the gate drive signal in order to maintain the desired output voltage and current values. This change in the duty cycle of the gate drive signal is known as the “Main Signal”, and is sent to the output transformer of the board, where it is used to control the flow of power to the output. The Secondary Side of the output transformer then sends the output voltage and current data back to the XRP9711EVB integrated circuit, where the information is again interpreted in order to maintain the desired output voltage and current values.

Overall, the XRP9711EVB-DEMO-1 board is a highly versatile and effective evaluation board designed for use in the evaluation of various DC/DC and AC/DC (off-line) switch mode power supplies. This board is easy to use and setup, offering engineers and product-development professionals the ability to quickly and efficiently evaluate the performance of their switch mode power supplies through a reliable and consistent platform.

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