Microcontroller delivers voltage-multiplied dc power

Lager, Aaron
May 2006
EDN;5/11/2006, Vol. 51 Issue 10, p76
Trade Publication
This article presents an integrated circuit (IC) design in which microcontroller provides voltage-multiplied direct current power. Sometimes the combination of an external circuit and a low-voltage microcontroller requires a higher power-supply voltage. For this applications, an external boost converter to increase the logic supply or a buck converter to decrease an even higher voltage can be used. But microcontroller can be used to make a higher voltage. The Villard Cascade circuit provides a less costly alternative to an external boost-voltage converter for some microcontrollers that lack a built-in comparator.


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