Patent ID: 6664771
Filing Date: 2003-12-16
Classification: H01F,H02P

Abstract:
A power regulation system coupled to an AC power source providing an input voltage between a first node and a second node, comprising:a. a first transformer, comprising: i. a winding having a first end and a second end, wherein the first end is electrically coupled to the first node and the second end is electrically coupled to the second node to receive the input voltage; and ii. a movable wiper arm having a wiper, an output node and a body therebetween, wherein the movable wiper arm is movable continuously between the second end and the first end of the winding so that a control voltage is generated between the output node and the second end within a range of from 0 volts to at least the input voltage; and b. a second transformer, comprising: i. a primary coil having a first end and a second end, wherein the first end is electrically coupled to the output node and the second end is electrically coupled to the second node to receive the control voltage from the first transformer; and ii. a secondary coil having a first end and a second end, wherein the first end is electrically coupled to the first node, wherein the primary coil and secondary coil are electromagnetically coupled to each other and so arranged that when the control voltage from the first transformer is applied to the first end and the second end of the primary coil, an output voltage is generated between the first end and the second end of the secondary coil; wherein the output voltage is substantially 180Â° out of phase from the input voltage so as to continuously generate between the first end of the secondary coil and the second node an effective voltage that is less than the input voltage and substantially equal to the difference between the input voltage and the output voltage.