INVERTER CIRCUIT AND CONTROL METHOD OF INVERTER CIRCUTE, INVERTER CIRCUIT CONTROL DEVICE

摘要

Embodiments of the present invention provide an inverter circuit and a control method of the inverter circuit, and an inverter circuit control device. The control method of the inverter circuit includes: controlling a first switch in a first switch set and a fourth switch in a fourth switch set to be turned on, where a current output by a positive pole of a direct current source, after passing through the first switch and a first inductor, is split into two paths, one path passes through a parallel branch and the other path passes through a capacitor, and then the two paths of current converge and return to a negative pole of the direct current source after passing through the fourth switch; controlling the first switch to be turned off and a second diode in a second switch set to be turned on, and then controlling a second switch in the second switch set to be turned on, so that second switch is turned on at a low voltage. By using the technical solutions in the embodiments of the present invention, low-voltage turn-on and/or low-current turn-off of a switch can be implemented, so that the switch is a soft switch, thereby reducing switch loss, and effectively improving the efficiency of the inverter circuit.