8D021J72AA

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8D021J72AA is a small-sized DC/DC power module with high efficiency. It is frequently applied in different fields and its working principle is quite unique as well.

Applications

8D021J72AA is a high performance DC/DC converter which is widely used in digital very-large-scale integration (VLSI) power supplies, distributed power systems, motor control systems, electronic energy saving lamps and other light regulating systems. Additionally, the 8D021J72AA is widely used to provide a stable and efficient power source for mobile communication circuits. It can also be used in instrumentation, test equipment and miscellaneous control systems.

Working Principle

The 8D021J72AA comprises an integrated, high-performance power modules packaged in an integral package, and uses a high-frequency, interleaved, non-isolated, positive bipolar sine wave pulse frequency modulation power conversion circuit. In short, it can convert a wide range of input voltage to a stable output voltage, utilizing an internal high frequency transformer to achieve electrical isolation.

The 8D021J72AA consists of two stages. The pre-regulating stage is used to convert a wide voltage input, filtering and rectifying the input current into a DC. This DC output is then used in the power conversion stage, which converts the DC voltage into a precise AC voltage, which then goes through a step-up transformer for further voltage regulation.

The 8D021J72AA utilizes a two-stage topology with feedback inductor for voltage regulation. The design provides output voltage and current control by adjusting the frequency or pulse width modulation. The type of PWM application used by the 8D021J72AA is called synchronous rectification, which provides improved power conversion efficiency. Furthermore, the module is capable of working in a wide temperature range and supports a wide input voltage range not only from 100 V to 250 V, but also from 45 V to 250 V.

Conclusion

The 8D021J72AA is a powerful DC/DC power module with a wide range of applications. Its two-stage topology allows it to handle a wide input voltage range and provides improved power conversion efficiency. The synchronous rectification PWM technique and high frequency transformer used in this module make it one of the most reliable and efficient DC/DC solutions for power management.

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