DC639A

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The DC639A Evaluation Board is an off-line SMPS (Switch-mode power supply) that supports adjustable DC or AC input voltages. With maximum efficiency of 96%, this board can provide output currents of up to 12А at 400V. It represents a milestone in the development of small-sized power supply units. The DC639A Evaluation Board is used in a variety of application fields such as automotive, LED lighting, consumer electronics, and industrial automation.

The DC639A Evaluation Board combines two functions that improve the efficiency and performance of the overall system. Firstly, it carries off-line AC/DC SMPS, and secondly, it contains an adjustable DC/DC converter. This combination of functions helps to lower the cost and improve the size of the overall power supply. Additionally, the DC639A Evaluation Board complies with international safety standards and meets the highest requirements of reliability.

The DC639A Evaluation Board has an integrated power transistor switch capable of operating in continuous conduction mode. This feature allows higher efficiency and improved noise improvement. By combining high-frequency operation with the use of a single-stage rectifier, the board is also able to provide a high power factor. Moreover, the integrated filter and removal stages help reduce the total harmonic distortion and reduce output ripple.

The output voltage of the DC639A Evaluation Board is adjustable from 10 to 90% of the input voltage. It can deliver both single-output and multiple-output voltages. To control the output voltage, the board is equipped with an adjustable frequency modulation loop. This allows the user to set the bus voltage level required for the output to perform correctly.

The board also has over temperature protection that will cause the board to switch off if it reaches a certain point. Over current protection is also integrated to protect the board from excessive current flow. In addition, the DC639A Evaluation Board meets EMC requirements as well as being RoHS compliant.

The DC639A Evaluation Board achieves its high level of efficiency thanks to its intelligent adaptive system. This system allows the maximum switching frequency to be adjusted automatically based on the load requirement. This helps to ensure the highest possible efficiency with minimal energy loss. Additionally, the optimized switching architectures incorporated in the board allow for extremely quick operation and soft switching. This helps eliminate high voltage spikes, resulting in improved energy conversion.

The DC639A Evaluation Board is a powerful tool for evaluating the performance of an off-line SMPS. With its combination of adjustable AC/DC and DC/DC converters, it is suitable for a wide range of applications. The board\'s efficient power transistor switch, intelligent adaptive system, and integrated safety features also contribute to its overall performance. With its energy-efficient design, the DC639A Evaluation Board is an ideal choice for a variety of power supply applications.

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