Patent ID: 11909331
Assignee: EN2CORE TECHNOLOGY, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power supply comprising:
an inverter configured to convert direct current (DC) power into alternating current (AC) power,
wherein the inverter comprises two output nodes such that the AC power is supplied to a load via the two output nodes, and
wherein the inverter further comprises an inductor which is electrically connected between the two output nodes; and

a controller configured to:
 periodically determine a next cell to be a powering cell or a freewheeling cell,
 adjust a total length of a freewheeling period in the freewheeling cell for controlling the power supplied to the load, and
 control the inverter according to the determined cell configuration,
wherein the powering cell consists of only powering period,
wherein the freewheeling cell comprises a powering period and a freewheeling period, at least one of a positive voltage and a negative voltage being output during the powering period and both of a positive voltage and a negative voltage being not output during the freewheeling period, and
wherein the freewheeling cell is configured that i) absolute value of a positive peak of a current of the inductor is to be matched to an absolute value of a negative peak of the current of the inductor, and ii) a total length for the positive voltage in the freewheeling cell is to be identical to a total length for the negative voltage in the freewheeling cell such that a damage to the at least one first switch and the at least one second switch can be minimized while adjusting the power supplied to the load using the freewheeling cell.