Patent ID: 8681522

Claim:
A method for operating an electronically controlled inverter, comprising: providing first, second, third, fourth and fifth semiconductor switches, first and second inductors and a first capacitor; and controlling the semiconductor switches of the inverter by a microcontroller to alternate between providing boost-buck converting and Cuk converting, wherein the semiconductor switches include a continuous connection of a neutral conductor at an alternating voltage network to a positive pole at an input side of a current source having a negative potential with respect to ground, wherein a first side of the first inductor is connected to a negative pole of a direct voltage and a second side of the first inductor is connected via the first semiconductor switch to a positive pole of the direct voltage, wherein the second side of the first inductor is connected via a series circuit of the second semiconductor switch, wherein the third semiconductor switch is connected to a first terminal of the second inductor, a second terminal of the second inductor is connected to the conductor of the alternating voltage, wherein the connection of the second and third semiconductor switches is connected via a first capacitor and the fifth semiconductor switch to a neutral connector of the alternating voltage, and wherein the connection of the first capacitor and fifth semiconductor switch is connected via a fourth semiconductor switch to the first terminal of the second inductor, wherein the semiconductor switches are controlled by the microcontroller so that a direct voltage applied to the input side is converted by way of the boost-buck converting during a negative half-wave of an alternating voltage at an output side of the inverter, and wherein the direct voltage applied to the input side is converted by way of the Cuk converting during a positive half-wave of the alternating voltage at the output side of the inverter.