DC1905A

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DC1905A is a low power, high efficiency open transformer digital control system evaluation platform for non-isolated flyback power supplies. It is designed to test, evaluate, and optimize medium power, 5W to 50W, offline switch mode power supplies ranging in output voltages from 5V to 48V. It is mainly used in testing, evaluation, and development of an offline SMPS. As one of the evaluation boards in the DC/DC and AC/DC off-line SMPS series, it provides flexibility to do the job efficiently and effectively, making it easier and more efficient for engineers and designers to deploy successful AC/DC power solutions.

The DC1905A features a high efficiency of 97.77% and a wide voltage range of 4 to 72 volts. It also includes a graphical PC interface software, which enables users to view output status with a single click of the mouse. The software also provides a real-time graphical display of all the parameters, including input voltage, output current, output power, and thermal compensation, allowing users to quickly and accurately optimize their power solution. The DC1905A is designed to work with power components with low switching losses, making it an ideal platform for testing and evaluation of both before and after optimization solutions.

To further enhance the efficiency of the DC1905A, it includes an integrated current mode control (CMC) for testing and evaluation of flyback power supply solutions. This CMC has the ability to accurately tune the output parameters of the power supply, ensuring an optimal performance. It also includes a unique high-speed startup feature that reduces the input current surges when the power is applied. This feature reduces the input current and helps save energy costs.

The DC1905A also supports software selectable target maximum peak current or output voltage, providing flexibility for the user to customize the parameters in their power solution. This feature helps designers easily adjust their solution and improve the efficiency and accuracy when optimizing their power solution. The DC1905A also supports pulse width modulation (PWM) control, providing designers with the capability to accurately control the power output from the power supply.

The DC1905A is an ideal platform for the users to have their output parameters adjusted through digital control. It provides all the necessary features for effective development and testing of off-line switch mode power supplies. Its wide voltage range, high efficiency, current mode control, real-time graphical display, and software selectable target maximum peak current or output voltage make it a powerful and useful evaluation board for DC/DC and AC/DC off-line SMPS.

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