DC DC Converter 48V to 12V, Power Source Voltage Step Down Converter 10A 120W DC to DC Converter 48V to 12V Voltage Buck Converter

Product Information

A similar version of this design solution originally appeared in Power Electronic Tips on February 04, 2021.

This model is not designed to be used as a battery charger. It has an adjustable output voltage range of 10V-15V.In a four-phase, coupled-inductor configuration, this solution yields an outstanding 97.9% peak and 97.43% full load efficiency (12V, 100A, 1.2kW), as shown in Figure 4. Built-in full protection against over/under voltage input, over-current, overload, overhead, over-temperature and short circuit

As the name implies a DC-DC converter is an electronic circuit or electromechanical device which takes a source of direct current (DC) and converts it from one voltage level to another. They are used where the operating voltage for some electronic devices vary making it necessary to provide a separate voltage for each device. Why is it necessary to convert DC to DC? Figure 2 shows the 48V server architecture. The best strategy to power low-voltage (< 1.8V), high current loads like memories and microprocessors is to reduce the 48V down to an unregulated 12V rail. An open-loop, unregulated 4:1 switched tank converter (STC) topology enables soft-switching operation with peak efficiency in the 98% to 99% range. From here, high-efficiency 12V VR converters power the various loads. A wide variety of types are available to suit different needs. Some DC-DC converters will step up the power, others will step down and some can do either. It's important to know the specifications of the converters being used to avoid damaging equipment. Types of DC-DC converters include:

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In a system with multiple voltages, a DC-DC converter is needed to convert the main system voltage to the desired voltage. E.g. in a system with 12V leisure batteries, a DC-DC converter converts 12V to 24V to power any 24V appliances.