An electronic sine wave transformer circuit comprising: an input node adapted to receive an input alternating current power source having an input voltage operating at an input frequency in a Hertz range; a magnetic storage coupling unit configured to receive said input power from said input node and to transfer the input power to the output node, comprising: a first set of windings coupled to a first bi-directional AC switch, the first bi-directional AC switch for receiving an input charging current associated with the input voltage; a second set of windings located in series with the first set of windings, the first and second set of windings sharing a common core; a second bi-directional AC switch connected at one end between the first and second set of windings and at another end to a common ground, the electronic sine wave transformer being arranged to continuously switch the first and second bi-directional AC switches between on and off in alternating modes at a switching frequency in a kilohertz range; and an output node connected to the second set of windings, the output node arranged to provide an output AC power having a frequency of the input frequency, the output power having an output voltage with an amplitude based on the input voltage and at least one of: a winding ratio of the first and second set of windings, a polarity of the first and second set of windings and a duty cycle of the first and second bi-directional AC switches. an input node adapted to receive an input alternating current power source having an input voltage operating at an input frequency in a Hertz range; a magnetic storage coupling unit configured to receive said input power from said input node and to transfer the input power to the output node, comprising: a first set of windings coupled to a first bi-directional AC switch, the first bi-directional AC switch for receiving an input charging current associated with the input voltage; a second set of windings located in series with the first set of windings, the first and second set of windings sharing a common core; a second bi-directional AC switch connected at one end between the first and second set of windings and at another end to a common ground, the electronic sine wave transformer being arranged to continuously switch the first and second bi-directional AC switches between on and off in alternating modes at a switching frequency in a kilohertz range; and a first set of windings coupled to a first bi-directional AC switch, the first bi-directional AC switch for receiving an input charging current associated with the input voltage; a second set of windings located in series with the first set of windings, the first and second set of windings sharing a common core; a second bi-directional AC switch connected at one end between the first and second set of windings and at another end to a common ground, the electronic sine wave transformer being arranged to continuously switch the first and second bi-directional AC switches between on and off in alternating modes at a switching frequency in a kilohertz range; and an output node connected to the second set of windings, the output node arranged to provide an output AC power having a frequency of the input frequency, the output power having an output voltage with an amplitude based on the input voltage and at least one of: a winding ratio of the first and second set of windings, a polarity of the first and second set of windings and a duty cycle of the first and second bi-directional AC switches.