Patent ID: 8411475

Claim:
A power supply to convert Alternating Current (AC) power to Direct Current (DC) power having a relatively constant voltage, the power supply comprising: a center tap transformer to provide AC power, wherein a center tap of the center tap transformer is connected to a common point and a return of a load; a first capacitor connected directly to a first tap of the center tap transformer; a first diode connected between a second tap of the center tap transformer and the first capacitor; a second capacitor connected directly to the second tap of the center tap transformer; and a second diode connected between the first tap of the center tap transformer and the second capacitor, wherein on a cycle by cycle basis: the first capacitor is charged via its direct connection to the first tap and the first diode connected between the first capacitor and the second tap to twice maximum voltage from the common point, the second capacitor is charged via its direct connection to the second tap and the second diode connected between the second capacitor and the first tap to twice the maximum voltage from the common point, the first capacitor is forced to discharge into the load by its direct connection to the first tap, and the second capacitor is forced to discharge into the load by its direct connection to the second tap.