Dc Voltage Converter

Written by Kevin Tavolaro
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A DC voltage converter is a device that either changes the voltage of a DC power supply, or converts an AC device to a DC power supply. This is often necessary for portable electronic devices, as well as older devices that need to adapt to more recent supply options. Some of the options now available for DC voltage conversion include isolated DC conversion, multiphase conversion, and the installation of system control and monitoring measures directly into the network of circuits. In addition, traditional methods of DC voltage conversion are also still in wide use.

A traditional DC voltage converter uses one of two systems. The first, and oldest method involves a voltage divider. A voltage divider is an instrument installed in a converter, in sequence with the voltage. As the electricity passes through the divider, it is split and reduced to the desired voltage. While this method is very efficient for some devices, it also presents several problems. A voltage divider is only capable of converting a higher voltage into a lower voltage. Low to high, and negative voltage conversion is not possible with this device. There is also a potential problem involving the amount of heat sometimes generated by these devices.

DC Voltage Converter Options

Another means of voltage conversion includes a third step, incorporating the use of alternating current (AC) as well. This type of DC voltage converter contains the electrical flow, and converts it to alternating current. Because alternating current can flow in either direction, the voltage can be decreased or increased while in the AC state. After the voltage is adjusted, the flow is converted back to DC.

Multiphase conversion uses a system of multiple dividers, operating out of sequence (as opposed to the structured sequence of the voltage divider method). By functioning in this fashion, multiphase conversion allows for the use of increasingly higher frequencies, without risking the excessive heat generated by older methods of conversion. The lack of extra heat creates an environment safe for the implementation of small monitoring and management devices, which would otherwise be damaged. In turn, these devices assist in monitoring and regulating the electric flow with a greater precision, allowing for efficiency rates of 95 percent and higher.


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