RDK-91

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RDK-91 Evaluation Board is one of the most popular platforms for testing and evaluating the features of off-line DC/DC and AC/DC power supplies. This evaluation board provides an easy and convenient way for power engineers to evaluate, debug, and improve the performance of their designs, while reducing the trial-and-error time required to reach satisfactory results. This guide provides an overview of RDK-91’s application field and working principle.

Application Field

RDK-91 is suitable for a wide array of off-line AC/DC and DC/DC power supplies, and is especially useful for flyback and forward topologies. The primary application areas include body electronics, industrial automation, consumer electronics, and automotive power systems, where it can be used to optimize a variety of designs. Featuring a comprehensive set of monitoring and control functions, RDK-91 enables engineers to adjust various parameters such as input voltage, switching frequency, output current, and load level in order to measure performance characteristics such as power efficiency, line and load regulation, and transient response. In addition, RDK-91’s built-in LED indicator and display provide a convenient way to quickly identify any faults or stability issues. It also features automatic protection devices and warning indicators for short circuits, overload protection, and other circuit conditions.

Working Principle

RDK-91 comprises an analog and digital prototyping system that facilitates off-line DC/DC and AC/DC power supply testing and demonstrates a variety of power applications in a single platform. The evaluation board is typically connected to a wall adaptor, a DC power source, an AC/DC power source, or a computer via the USB interface. The analog board allows engineers to set the input and output voltage and current by adjusting the control knobs or push-buttons. It also features a built-in digital display which can be used to monitor the input and output parameters in real-time. The digital board extends the features of the analog board and offers additional control and diagnosis capabilities. It enables engineers to utilize the internal timers to program the delay mechanism, as well as the digital input ports for remote control and the analog output ports for producing waveforms and testing with AC power sources. Additionally, the digital board provides an adjustable overvoltage and overcurrent protection, which protects the IC from over voltage and over current levels.

RDK-91 evaluation board is a versatile platform that simplifies the testing and evaluation of off-line DC/DC and AC/DC power supplies. It enables engineers to quickly debug and optimize the performance of their designs, and reduces the time required for trial-and-error. By providing precise control over input and output parameters, and a comprehensive set of monitoring and control features, the board is a powerful tool in ensuring efficient, reliable, and safe operation of power systems.

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