Four-mode tap-switching transformer rectifier

A system comprising:

• a transformer comprising a first transformer output and a second transformer output;
• a plurality of rectifier circuits, wherein the plurality of rectifier circuits comprises a first rectifier coupled to the first transformer output and a second rectifier coupled to the second transformer output, and
• wherein the first rectifier comprises a first output voltage and the second rectifier comprises a second output voltage;
• a plurality of switches, wherein the plurality of switches comprises a first switch, a second switch, and a third switch;
• and
• a logic circuit configured to operate the plurality switches based on a plurality of operational modes, wherein the plurality of operational modes comprises a first mode, a second mode, and a third mode;
• and wherein operating the plurality of switches based on the first mode comprises:
• determining the first output voltage is less than a low threshold voltage;
• and
• based on determining the first output voltage is less than the low threshold voltage, causing the logic circuit to:
• operate the first switch in a closed state,
• operate the second switch in a closed state, and
• operate the third switch in an open state;
• wherein operating the plurality of switches based on the second mode comprises:
• determining that the first output voltage is greater than a low threshold voltage;
• determining that the first output voltage is less than a middle threshold voltage;
• based on determining that the first output voltage is greater than the low threshold voltage and less than the middle threshold voltage, causing the logic circuit to:
• operate the first switch in an open state,
• operate the second switch in a closed state, and
• operate the third switch in an open state.