A voltage regulation circuit comprising: a transformer having a primary winding having a first end and a second end, and a first secondary winding having a first end and a second end, wherein the first end of the primary winding and a neutral node are configured to receive an input voltage and the second end of the primary winding and the neutral node are configured to produce an output voltage, wherein the first end of the first secondary winding is connected to the neutral node, wherein the primary winding produces a primary voltage based on the input voltage, and wherein a secondary voltage of the first secondary winding is out-of-phase to the primary voltage of the primary winding; and a first switch configured to connect the second end of the first secondary winding with the second end of the primary winding, wherein, when the first switch is connected, the output voltage is the secondary voltage, wherein the transformer further comprises a second secondary winding, having a first end and a second end, wherein the first end of the second secondary winding is connected to the neutral node, and wherein the voltage regulation circuit further comprises a second switch configured to connect the second end of the second secondary winding to the neutral node, wherein, when the second switch is closed and the first switch is open, the output voltage is effectively the input voltage reduced by voltage drops across the primary winding, and wherein, when the second switch is open and the first switch is closed, the output voltage is the secondary voltage, as defined by a ratio of the windings between the primary winding and the first secondary winding; the voltage regulation circuit being configured to alternately close the switches and, thereby changing the average voltage at the second end of the primary winding, wherein the average voltage depends on the duration of the respective voltages at the second end of the primary winding; and wherein the switches and are never closed at the same time. a transformer having a primary winding having a first end and a second end, and a first secondary winding having a first end and a second end, wherein the first end of the primary winding and a neutral node are configured to receive an input voltage and the second end of the primary winding and the neutral node are configured to produce an output voltage, wherein the first end of the first secondary winding is connected to the neutral node, wherein the primary winding produces a primary voltage based on the input voltage, and wherein a secondary voltage of the first secondary winding is out-of-phase to the primary voltage of the primary winding; and a first switch configured to connect the second end of the first secondary winding with the second end of the primary winding, wherein, when the first switch is connected, the output voltage is the secondary voltage, wherein the transformer further comprises a second secondary winding, having a first end and a second end, wherein the first end of the second secondary winding is connected to the neutral node, and wherein the voltage regulation circuit further comprises a second switch configured to connect the second end of the second secondary winding to the neutral node, wherein, when the second switch is closed and the first switch is open, the output voltage is effectively the input voltage reduced by voltage drops across the primary winding, and wherein, when the second switch is open and the first switch is closed, the output voltage is the secondary voltage, as defined by a ratio of the windings between the primary winding and the first secondary winding; the voltage regulation circuit being configured to alternately close the switches and, thereby changing the average voltage at the second end of the primary winding, wherein the average voltage depends on the duration of the respective voltages at the second end of the primary winding; and wherein the switches and are never closed at the same time.