Isolation transformer with autovoltage regulation

A method of regulating a voltage, comprising:

• provide a voltage to a first winding of a transformer;
• determine that an output voltage provided by a second winding of the transformer has changed by a threshold amount;
• responsive to determining that the output voltage has changed by a threshold amount, setting a first switch position of a first switch to one of a first state of the first switch and a second state of the first switch, the first state of the first switch configured to provide the voltage to a first section of the first winding, and the second state of the first switch configured to disconnect the first section of the first winding from the voltage;
• responsive to determining that the output voltage has changed by a threshold amount, setting a second switch position of a second switch to one of a first state of the second switch and a second state of the second switch, the first state of the second switch configured to provide the voltage to a second section of the first winding, and the second state of the second switch configured to disconnect the second section of the first winding from the voltage;
• and
• responsive to determining that the output voltage has changed by a threshold amount, providing the voltage to a third section of the first winding regardless of the first switch position or the second switch position.

A non-transitory computer-readable medium containing thereon instructions for regulating voltages, the instructions instructing one or more processors to:

• receive an indication of an output voltage and an input voltage of a transformer;
• determine whether the output voltage has changed by a threshold amount;
• responsive to determining that the output voltage has changed by a threshold amount, adjust a first switch position of a first switch of a transformer to selectively provide or remove the input voltage from a first section of the first winding;
• responsive to determining that the output voltage has changed by the threshold amount, adjust a second switch position of a second switch of the transformer to selectively provide or remove the input voltage from a second section of the first winding;
• and
• provide the input voltage to a third section of the first winding regardless of the first switch position and the second switch position.

A transformer assembly comprising:

• a first input;
• a second input;
• a first winding having a plurality of sections including a first section and a last section, a first end of the first section being coupled to the first input and a second end of the last section being coupled to the second input;
• a plurality of switches including a first switch configured to selectively couple the first end of the first section or a second end of the first section to a first end of a next section, and a last switch configured to couple a first end of the last section to a first end of a penultimate section or a second end of the penultimate section;
• and
• a second winding galvanically isolated from the first winding.

A transformer assembly comprising:

• a first input;
• a second input;
• a first winding having a plurality of sections including
• a first section having a first end of the first section and a second end of the first section,
• a last section having a first end of the last section and a second end of the last section,
• a next section having a first end of the next section, and
• a penultimate section having a first end of the penultimate section and a second end of the penultimate section, the second end of the last section being coupled to the second input, and the second end of the first section being coupled to the first end of the next section;
• a plurality of switches including a first switch and a last switch,
• the first switch being coupled to the first input, the first end of the first section, and the second end of the first section, and configured to selectively couple the first input to the first end of the first section or the second end of the first section, and
• the second switch being coupled to the first end of the last section, the first end of the penultimate section, and the second end of the penultimate section, the last switch configured to selectively couple the first end of the last section to the first end of the penultimate section or the second end of the penultimate section;
• and
• a second winding galvanically isolated from the first winding.