Patent ID: 8872392

Claim:
A method comprising: receiving a first direct current (DC) signal at a first comparator from a positive bus of a split bus, wherein the split bus has a positive bus, a negative bus, and a neutral bus, and wherein the first DC signal is acquired from the positive DC bus relative to the neutral bus; receiving a second direct current (DC) signal at a second comparator from a negative bus of the split bus, wherein the second DC signal is acquired from the negative DC bus relative to the neutral bus; comparing the first DC signal to a first reference value to determine a first input signal; comparing the second DC signal to a second reference value to determine a second input signal; receiving at an inverter controller the first and second input signals; applying by the inverter controller a control algorithm to determine, based at least in part on the first and second input signals, whether to adjust a magnitude of at least one of the first or second DC signals; converting the first or second DC signals to an alternating current (AC) signal with the inverter; and providing the AC signal to a load.