DC-DC Transformers

In practice, not every load can be operated equally well or equally wisely with a 24V on-board voltage. 12V bulbs for lights and lighting are usually more robust thanks to thicker filaments, as well as being more readily available as spares than their 24V counterparts. Accessory electronics such as car radios, navigation systems or radio equipment are usually only available at an acceptable price as 12V versions. In such cases, the use of a higher operating voltage makes no sense in terms of energy technology, since even smaller voltages are used inside the appliances and the connected power is rather low.

Uses for Converters

DC/DC converters provide an output voltage that is independent of varying input voltage over a wide range. This makes converters useful for stabilising the supply voltage for the connected devices. Car radios, radio equipment and cell phone adapters are widely available in 12 V modelsThe paragraph should not have been split here – they are providing a reason for using the converters, i.e. instead of buying a 24V radio. However similar devices in 24 V supply voltage are disproportionately expensive with significantly fewer on offer. For such purposes, converters provide an economical and easy to install solution for operating 12 V devices in trucks, buses and construction machinery.

Uses for Charging Converters (Equalizers)

Equalizers are special DC/DC converters in which the output voltage dynamically follows the input voltage at a set ratio. DC/DC converters that are used to equalize batteries are called charging converters or equalizers. The expression “equalizer” refers to the function of the charge compensation between the differently charged batteries. The output voltage in a 24V wiring system with additional 12V devices is equal to half of the input voltage. This applies for every input voltage within the operating range.

as galvanically insulated converters or boosters
as galvanically insulated converters or boosters
converters, equalizers, waterproof or galvanically insulated
as converters and equalizers