VI-B4Y-EW-F4

DC DC Converters

A DC-DC converter is an electrical circuit composed of switching elements, inductors, transformers, and capacitors, designed to efficiently transfer electric power from one electrical DC voltage to another. The functions of a DC-DC converter include voltage step-up, voltage step-down, isolated power supply, low power draw, and protection from over-current conditions of the output load. DC-DC converters are used in an array of applications, such as home security systems, electronic toys, alarm systems, automotive systems, and military systems.

VI-B4Y-EW-F4 Application Field and Working Principle

The VI-B4Y-EW-F4 DC-DC converter is a four-channel synchronous buck DC-DC converter. It is designed to convert from one DC input voltage to four outputs. The VI-B4Y-EW-F4 is at the forefront of the latest developments in DC-DC converter technology, offering an excellent dynamic response with fast transient response time, high nominal switching frequency, low total harmonic distortion, and excellent EMI performance. It operates with a high efficiency of up to 94%, with a maximum output current of 24A and a maximum output voltage of 16V.

The core component of the VI-B4Y-EW-F4 converter is its synchronous rectified buck switching topology. As the name suggests, it is a DC-DC buck converter with a synchronous rectifier that switches both MOSFETs simultaneously. This topology eliminates the reverse recovery of the second diode, reduces switching loss, and reduces the internal electric charge. The control system inside the converter regulates both MOSFETs switching. It regulates the MOSFETs to switch on and off at precise times such that they both work in synchrony, thus providing high-efficiency operation.

The switching frequency of theVI-B4Y-EW-F4 converter is specified at 300KHz with a minimum switching frequency of 225KHz. This offers an optimal solution for most applications, as it helps to reduce component size and cost without compromising efficiency. The design also features an adjustable current mode soft start, which allows for smooth start-up without any excessive inrush current.

The VI-B4Y-EW-F4 DC-DC converter is a useful solution for applications requiring a four-channel power solution. It features robust protection features and high efficiency, and is suitable for a variety of different applications. It provides a safe and stable power supply that is reliable and free from over-current or short-circuit conditions.