EVB_RT5784AGQWF

EVB_RT5784AGQWF is a high-performance, single-ended Primary-Side Regulation (PSR) Flyback inverter evaluation board, which is designed to evaluate the RT5784 offline SMPS with the unique PSR control technique that eliminates the need for secondary-side feedback circuitry. This evaluation board offers a wide range of features, including low standby power, high efficiency, low component count and adjustable voltage output. The EVB_RT5784AGQWF has been developed for evaluation purposes and includes various parts, including power inductors, MOSFET, resistor and capacitor.

Application Fields of EVB_RT5784AGQWF

The EVB_RT5784AGQWF can be used in a range of AC/DC or DC/DC SMPS applications, such as home appliances, consumer electronics, communication systems and automotive systems. It can also be used to evaluate other offline SMPS with similar topology. Furthermore, the board is ideal for a variety of applications in the power electronics sector, including LED lighting, PoE, PB charging, general AC/DC and DC/DC, commercial and industrial SMPS, and solar module integrated converter applications.

Working Principle of EVB_RT5784AGQWF

The EVB_RT5784AGQWF operates using the PSR control technique for high regulation accuracy without a secondary-side control circuit. The device uses an adaptive on-time control for primary-side power switch operations, which is driven by feedback signals from the PSR pin. The PWM signal controls the turn-on and turn-off times of the power switch, providing flexible control without any additional external components. The interface circuits of the PSR pin are also integrated, enabling the evaluation board to quickly respond to load or line voltage changes.

The EVB_RT5784AGQWF employs a custom magnetics transformer that has the highest efficiency in the lowest possible power consumption. It also utilizes a power factor correction (PFC) technique, which allow the efficiency of the transformer to increase up to 80%, while maintaining an excellent level of power factor neutrality. The board also provides protection against over voltage, over current, and short-circuit. Furthermore, the board incorporates a wide range of protections like TVS protection, OLP protection, and built-in NTC that further improves the reliability and protection of the system.

Conclusion

The EVB_RT5784AGQWF evaluation board offers an ideal platform to evaluate the PSR Flyback offline SMPS with extremely high efficiency, low component count, excellent stability and excellent protection features. The board is capable of operating in a variety of applications, such as home appliances, consumer electronics, communications systems and automobile systems, and can also be used to evaluate other offline SMPS with similar topology. The evaluation board has also been designed with a wide range of protection features to ensure reliability and safety.