COMPACT AND EFFICIENT TRANSFORMERLESS POWER CONVERSION SYSTEM

摘要

A TRANSFORMERLESS POWER CONVERSION SYSTEM INCLUDING A PLURALITY OF CAPACITORS CONNECTED IN SERIES; A CHARGING CIRCUIT CONNECTED TO THE PLURALITY OF CAPACITORS, THE CHARGING CIRCUIT CHARGING THE PLURALITY OF CAPACITORS FROM A VOLTAGE SOURCE TO A PREDETERMINED VOLTAGE; A CIRCUIT FOR INVERTING THE POLARITY OF THE CHARGE STORED IN SELECTED CAPACITORS OF THE PLURALITY OF CAPASITORS, THE POLARITY INVERTING CIRCUIT INCLUDING A PLURALITY OF INDUCTOR CIRCUITS, EACH OF WHICH CAN BE SWITCHABLY COUPLED TO A CORRESPONDING DIFFERENT ONE OF THE SELECTED CAPACITORS TO FORM A RESONANT CIRCUIT WHICH AIDS IN INVERTING THE POLARITY OF A STORED CHARGE IN THAT CAPACITOR; AND A DISCHARGING CIRCUIT FOR EXTRACTING POWER FROM THE PLURALITY OF CAPACITORS AT A TRANSFORMED VOLTAGE. (FIG. 3)