YAS512E

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AC-DC converters have become increasingly popular in industrial and consumer applications as they provide a meaningful and reliable way to convert energy from AC to DC. The YAS512E is a single-stage, non-isolated AC-DC converter designed to provide efficient and reliable power conversion, while its small size and low price make it ideal for consumer applications. This article looks at the YAS512E’s application field and working principle.

The YAS512E is designed to convert alternating current (AC) to direct current (DC) efficiently, with a maximum efficiency of up to 96% and a power density of 10.8kW/in3. It is available in two versions – 48V and 24V – with different power outputs ranging from 500W to 1500W. The YAS512E features a wide input voltage range of 85 to 305Vac and is suitable to work from either a single phase or a three-phase AC power supply. The operating temperature range also makes it suitable for industrial applications, covering from -40˚C to +100˚C.

Another great feature of the YAS512E is its small size. Measuring just two inches square and weighing only two ounces, it can easily be used in consumer applications such as for mobile phones, computers, and other portable devices. Additionally, it is built for high reliability, with a mean time between failures (MTBF) of up to fifty thousand hours.

In terms of operation, the YAS512E works through two stages: a power factor correction (PFC) stage and a linear conversion stage. In the PFC stage, the YAS512E uses a boost chopper circuit to convert the input AC voltage to DC voltage. It then incorporates a peak current mode control with a voltage feedforward to ensure a constant output voltage, regardless of line fluctuations. The YAS512E then passes the input through a 600V MOSFET current-mode control, which supplies a constant current to the output load.

The second stage is the linear conversion stage, which is responsible for regulating the input voltage and maintaining a constant voltage during sudden load changes. The YAS512E uses a two-stage topology with an auxiliary output for additional control to provide a stable output voltage, even if the line voltage is varying. The YAS512E features a wide operating frequency range of 50Hz to 400Hz and incorporates over-current protection and current limiting to ensure the output voltage remains constant.

In conclusion, the YAS512E AC-DC converter is a highly-efficient, reliable, and small-sized device suitable for both industrial and consumer applications. With its two-stage topology, wide operating frequency range and extended temperature range, it is designed to easily meet the demands of the modern world. The YAS512E’s integrated PFC and linear conversion stages also ensure a constant and stable output voltage, regardless of line fluctuations.

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