DC419A

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The DC419A Evaluation Board is a DC/DC and AC/DC off-line switch mode power supply (SMPS) device from Vicor Corp. This versatile board offers greatest ease and flexibility of integration into virtually any system. It allows for evaluation, prototyping and field testing of Vicor’s various SMPS products.

The DC419A contains an isolated, wide input to regulated output voltage DC/DC and AC/DC Flyback Converter. It includes a dedicated Vicor VI Chip VI-200-EU-SIP, a DC controller, a latching PWM, a Half Bridge, and a quad diode arrangement. It provides three outputs—12 W, 24 W, 36 W—with 5 V output for the 36 W output. An exterior PFC controller as well as a constant voltage, constant current converter, are also included for integration into the system. Furthermore, the DC419A is certified for UL61800, EN61010, CE, FCC and UL1450.

The DC419A\'s wide input makes it suitable for a range of systems, including industrial, commercial and home applications. It can be used for a variety of power products, such as medical equipment, printers, computers and more. It is designed to handle high current draw, so it is suitable for powering high power loads in applications such as robotics and lighting.

The DC419A features a latching PWM function, which helps to reduce switching losses. This allows for higher power efficiency, as well as improved system reliability. Additionally, it comes with a built-in thermal protection, allowing it to shut down when temperatures climb too high.

In terms of its working principle, the DC419A is designed to operate in continuous conduction mode. This means that the input voltage is presented to the primary side MOSFETs continuously, which in turn, powers the secondary devices. The PWM control is used to regulate the output signal and provide the desired power. As the voltage across the primary and secondary MOSFETs is different, the DC419A works to ensure the voltage levels are properly balanced.

The DC419A has many safety features, including automatic frequency foldback, independent line fault monitoring and over temperature protection. It also has an Over Voltage Protection (OVP) circuit, which shuts down the power supply once a certain voltage limit has been exceeded. This guarantees protection of the system, as well as preventing damage to components and equipment.

In conclusion, the DC419A Evaluation Board from Vicor Corporation is a comprehensive DC/DC and AC/DC off-line SMPS that is suitable for a wide range of applications. It offers great flexibility and efficiency, excellent safety features, and improved system reliability. It is an ideal solution for any system requiring high power and reliability.

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