VI-25V-EX-S

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DC-DC converters are electronic devices that convert a DC input voltage to a DC output voltage with either isolation or non-isolation.The VI-25V-EX-S is a non-isolated DC Converter that offer an efficient, reliable and flexible solution to power applications. It offers an operating input voltage range from 4.5-25V DC and has a continuous output current of up to 25A. It also includes various protection features such as the over temperature, overload and short circuit protections.

The application field of the VI-25V-EX-S DC converter includes a wide range of DC input driven industrial applications such as telecommunications, solar energy, power supplies, motor control, automotive, and HVAC. The device is suitable for driving single as well as three phase PMSMs, BLDCs, AC and DC motors.Its high efficiency and wide input voltage makes it perfect for powering various intelligent systems such as PLCs, computers, mobile devices and other automation systems.

The VI-25V-EX-S DC converter works on the principle of PWM (Pulse Wave-Modulation) Control. It uses a high frequency switched DC-DC converter topology based on the FET as its main switch. The power circuitry is composed of an MOSFET (Metal Oxide Semiconductor Field Effect Transistor), transformer and filter capacitor.When the PWM signal is low, the switches are closed, allowing current to flow through the transformer primary winding. When the PWM signal is high, the switches are opened, stopping the current flow. This alternating process creates a varying magnetic filed in the transformer\'s core and thereby producing a clean, noise free output voltage.

The circuit also uses a digital PWM controller IC (Integrated Circuit) to set the desired output voltage. This IC has built in protection features such as over temperature protection (OTP) and over current limit (OCL). The OTP feature monitors the device\'s output voltage and shuts down the converter if the temperature exceeds the predefined safety limit. The OCL feature limits the output current of the converter during overload conditions, thereby protecting the device from damages.

In conclusion, the VI-25V-EX-S DC converter is a highly efficient, reliable and cost effective device for powering a wide range of DC driven industrial applications. It offers a wide input voltage range, high continuous output current and many safety features such as the over temperature protection, overload and short circuit protection. The device works on the PWM (Pulse Wave modulation) Control principle which enables it to produce a clean, noise free output voltage.

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