EVAL6928D

The EVAL6928D is an evaluation board designed by ON Semiconductor to evaluate and demonstrate the performance of its integrated current mode PFC/PWM controllers. It provides ac-dc offline converters with a power factor correction system that complies with the International Harmonic Reduction (IHR) standards. The evaluation board works as a proof-of-concept development and is suitable for constant output voltage, constant output current application. Moreover, the board is capable of demonstrating advanced features such as auto power factor correcting and dual pre-biased function.

The EVAL6928D board and its components are composed of the current mode PFC/PWM controllers, boost diode, boost inductor, bulk storage capacitors and several other parts. The board has two working modes, automatic feedback and manual feedback, according to the control the current mode controllers. In the automatic feedback mode, the PFC controller will regulate the power factor by automatically adjusting the voltage and current to maintain the set points. With the manual feedback mode, users can adjust the set-points manually to regulate the current and voltage.

The EVAL6928D board is suitable for a wide range of applications, including stand-alone systems, telecom, and industry automation. It is capable of providing a quick and simple solution for integrating a reliable and efficient power factor correction system into existing designs or any new product. In addition, the board also supports high power density applications up to 200W (power level depending on the user’s input conditions).

The EVAL6928D board has several advantages, such as high efficiency, high power density, and small size and weight. Additionally, its integrated current mode PFC and PWM controllers are highly efficient and compliant with the IHR standards. The board\'s smaller size makes it easy to integrate into most applications. Moreover, it has a wide operating temperature range with an adjustable soft start up period feature for improved system reliability. Additionally, it includes LED drivers for external devices (optional), thus making it ideal for LED lighting, street lighting, and home appliances.

Overall, the EVAL6928D evaluation board is an excellent choice for ac-dc offline converters applications, for providing an easy and reliable solution to add power factor correction to different devices. Its low size and high power density makes it an ideal solution for high power density applications. With its various integrated features and compliance with the IHR standards, the board can easily provide a reliable and cost-effective approach to improve the AC/DC and DC/DC converter’s system performance.