VT388FCR-ADJ

Series:	*
Part Status:	Obsolete

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VT388FCR-ADJ is a multifunctional power supply module from VTECH, designed for a variety of industrial, consumer, and automotive applications. The module integrates high-efficiency regulators, feedback networks, voltage references, current limit circuitry, isolation design, and over-temperature protection, making it a reliable and cost-effective solution for various power-management needs. It is capable of supplying up to 5 A of current and up to 18V of voltage.Application FieldThe VT388FCR-ADJ module is well suited for a wide range of industrial applications where 4.5 to 18V DC output needs to be regulated. It can be used in automotive, consumer, and industrial electronics applications. Examples of typical applications include automotive sensing and control systems, motor-control circuits, LED lighting, alarms and security systems, and telecommunications equipment.Working PrincipleThe VT388FCR-ADJ module is a switching mode power supply (SMPS) that utilizes a high-frequency transformer for energy conversion. It includes a power transistor, driver, and feedback circuitry that allow constant and stable output. It operates in three basic stages:1. The input is filtered and rectified to obtain a DC voltage source.2. The high-frequency transformer is powered, and the output is generated.3. The output is regulated and the power transistor is turned off to avoid over-current and over-heating.The output voltage is regulated by the feedback circuitry, which senses the voltage level and adjusts the duty-cycle of the power transistor accordingly. If the voltage level drops, the duty cycle is decreased and the output voltage is increased; while if the voltage level rises, the duty cycle is increased and the output voltage is reduced. This fine regulation ensures that the voltage output is always stable and accurate within the specified range.The VT388FCR-ADJ module is also equipped with several protection features to protect it from external factors such as over-voltage, over-current, over-temperature, and short circuit. It is designed to withstand electrical noise from both the input and the output, thus ensuring that power is always supplied in a safe and reliable manner. In conclusion, the VT388FCR-ADJ module is a versatile and reliable solution for various industrial and consumer applications. Its reliable performance, protective features, and cost-effectiveness makes it an attractive choice for many power-related applications.

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