An inverter circuit, comprising a direct current source, an alternating current circuit and more than one inverter bridge, wherein each inverter bridge comprises a first bridge and a second bridge, the first bridge being connected to the positive pole and the negative pole of the direct current source, the second bridge being connected to the positive pole and the negative pole of the direct current source, and the first bridge and the second bridge being arranged in parallel; wherein the first bridge comprises a first switch component set and a second switch component set that are in series, wherein the first switch component set comprises a first switch tube and a first diode unit that are in parallel, wherein the negative pole of the first diode unit is connected to the positive pole of the direct current source, and the second switch component set comprises a second switch tube and a second diode unit that are in parallel, wherein the negative pole of the second diode unit is connected to the positive pole of the direct current source, and wherein the first bridge comprises a first inductor; wherein the second bridge comprises a third switch component set and a fourth switch component set that are in series, wherein the third switch component set comprises a third switch tube and a third diode unit that are in parallel, wherein the negative pole of the third diode unit is connected to the positive pole of the direct current source, and the fourth switch component set comprises a fourth switch tube and a fourth diode unit that are in parallel, wherein the negative pole of the fourth diode unit is connected to the positive pole of the direct current source, and wherein the second bridge comprises a second inductor; wherein the alternating current circuit comprises a first alternating current source and a first capacitor that are in parallel, or comprises a first alternating current load and a first capacitor that are in parallel, wherein one end of the alternating current circuit is connected between the first switch component set and the second switch component set of the first bridge through the first inductor, and the other end of the alternating current circuit is connected between the third switch component set and the fourth switch component set of the second bridge through the second inductor wherein the inverter circuit is arranged such that low-current turn-off of the second switch tube is implemented by, in a process that the inductive current flowing through the first inductor and the second inductor gradually decreases to zero, and the charged first capacitor discharges to generate and gradually increase a reverse inductive current flowing through the first inductor and the second inductor, if it is detected that the inductive current or the reverse inductive current flowing through the first inductor and the second inductor has an absolute value smaller than a first threshold, then the second switch tube is turned off, and, characterised in that when the inverter circuit has more than two inverter bridges, and the first inductor and the second inductor are part of different inverter bridges, a time when an inductive current flowing through the first inductor reaches a peak and another time when an inductive current flowing through the second inductor reaches a peak are controlled to be staggered, and the circuit further comprises a third inductor and a fourth inductor, wherein when the alternating current circuit comprises the first alternating current source, the first capacitor is in parallel with a circuit which is formed by the third inductor, the first alternating current source and the fourth inductor; and when the alternating current circuit comprises the first alternating current load, the first capacitor is in parallel with a circuit which is formed by the third inductor, the first alternating current load and the fourth inductor.