KLNA120F-24

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AC-DC converters are energy conversion devices used to supply regulated DC power from AC power sources. The KLNA120F-24 is a power-efficient AC/DC converter which can convert the mains AC input voltage to a single DC output voltage with high efficiency. The unit operates over an input range of 85 to 264 VAC and is suitable for a wide range of industrial and commercial applications.

The KLNA120F-24 consists of two stages: a power factor corrected boost converter followed by a synchronous buck converter. The boost converter is used for running the internal circuits of the device, while the synchronous buck converter is used for providing a regulated output voltage. The two stage converter operates over a wide input voltage range, providing highly efficient power conversion even at full load. In addition, the device is designed to minimize input current THD, resulting in reduced harmonic interference when operating on a low power factor.

The KLNA120F-24 features active power factor correction and is designed to meet the requirements of EN61000-3-2. The PFC circuit is configured in a flyback topology which improves the peak current requirement compared to single-ended approach. The operating frequency of the PFC converter is fixed at 200kHz, ensuring a wide supply range with low current consumption.

The KLNA120F-24 utilizes synchronous rectification technology in the buck converter, which has several advantages over diode rectification. It eliminates power losses due to forward voltage drop and provides a smoother output voltage waveform. In addition, the device is equipped with an adjustable duty cycle which facilitates proper synchronization between the input and the output voltage waveforms. This helps in achieving an optimal efficiency of up to 95% with minimal output voltage ripple.

The KLNA120F-24 is equipped with a number of safety and protection features, such as over voltage protection, short circuit protection, anti-islanding protection, and thermal cutoff. These features help protect the device from operating in dangerous conditions, ensuring the reliability and safety of the device. The device can also be equipped with a number of additional secondary protection features such as Current Bridging, Isolation Breakdown, Internal NTC Fuse, and External NTC. These features can be used to protect the device from over current and short circuit conditions.

The KLNA120F-24 is a highly efficient, reliable, and cost-effective power conversion solution for a wide range of industrial and commercial applications. The device is designed to meet the requirements of EN61000-3-2, ensuring compatibility with the power line network. The device is capable of providing highly efficient power conversion up to 95% with minimal output voltage ripple. The safety and protection features of the device make it an ideal choice for reliable and long lasting power conversion performance.

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