Patent ID: 7504905
Filing Date: 2009-03-17
Classification: H01P,H02J,H02M

Abstract:
1. A method for coupling a direct current power source through a non-conducting membrane, said method comprising the steps of: providing the direct current power source with source impedance Z providing, in series with the power source, a switching circuit containing a periodically time varying switch wherein the time varying switch is capable of converting voltage of the power source into a square-wave voltage across a load resistance equal to Z providing, in series with the switching circuit, a first transmission line with characteristic impedance, Z providing a first transformer with an effective turns ratio 1: N and with the 1-turns side electrically connected to the output of the first transmission line; providing two capacitor plates on a first side of the membrane and electrically connected to two terminals of the N-turns winding of the first transformer; providing two capacitor plates on a second side of a membrane and located in proximity to the two capacitor plates on the first side of the membrane; providing a second transformer with turns ratio N:1 with two terminals of the N-turns winding electrically connected to the two capacitor plates on the second side of the membrane; providing a second transmission line with characteristic impedance, Z providing a non-linear circuit containing at least one diode that converts a square-wave to a direct current, constant voltage across a load resistor Z operating the switching circuit such that a square wave is generated in the first transmission line and such that the square wave amplitude is proportional to the magnitude of the voltage of the DC source, which is connected to the switching circuit; achieving a steady-state condition of the voltage and the current within the first transmission line by said square-wave generating step; changing a source impedance level of the square-wave with the first transformer by a factor of N outputting the square-wave from the first transformer to the first-side plates of a capacitor pair; transmitting the square-wave from the first-side transformer N-turns winding to the second-side transformer N-turns winding by means of the two coupling capacitors formed by two plates on each of the sides of a membrane; transmitting the square-wave by the second transmission line to the non-linear circuit; and converting the square-wave by the non-linear circuit to a direct current source of power delivered to a load resistance, Z