A power converter for converting electric power between a power source and a load, comprising: a boosting device including a rectifier configured to prevent a backflow of a current from the load to the power source, the boosting device being configured to boost a voltage of electric power supplied from the power source to a predetermined voltage; a commutation device configured to perform a commutation operation of directing a current flowing through the boosting device to an other path without flowing the current through the rectifier; and a controller configured to perform control related to the voltage change of the boosting device and control related to the commutation operation of the commutation device, wherein the commutation device is configured to direct, when the commutation device performs the commutation operation, a current generating a voltage causing reverse recovery of the rectifier to the commutation device, characterized in that the commutation device includes a transformer that is provided with a secondary-side winding on the other path and that is configured to apply a voltage, induced by a current flowing through a primary-side winding of the transformer, to the secondary-side winding, and a transformer drive circuit that connects with the primary-side winding of the transformer and that drives the transformer, and the transformer is configured to have a turns ratio between the primary-side winding and the secondary-side winding in which a return current flowing on a side of the primary-side winding is smaller than a current capacity of the transformer drive circuit and the current generating the voltage causing the reverse recovery of the rectifier flows through the commutation device. a boosting device including a rectifier configured to prevent a backflow of a current from the load to the power source, the boosting device being configured to boost a voltage of electric power supplied from the power source to a predetermined voltage; a commutation device configured to perform a commutation operation of directing a current flowing through the boosting device to an other path without flowing the current through the rectifier; and a controller configured to perform control related to the voltage change of the boosting device and control related to the commutation operation of the commutation device, wherein the commutation device is configured to direct, when the commutation device performs the commutation operation, a current generating a voltage causing reverse recovery of the rectifier to the commutation device, characterized in that the commutation device includes a transformer that is provided with a secondary-side winding on the other path and that is configured to apply a voltage, induced by a current flowing through a primary-side winding of the transformer, to the secondary-side winding, and a transformer drive circuit that connects with the primary-side winding of the transformer and that drives the transformer, and a transformer that is provided with a secondary-side winding on the other path and that is configured to apply a voltage, induced by a current flowing through a primary-side winding of the transformer, to the secondary-side winding, and a transformer drive circuit that connects with the primary-side winding of the transformer and that drives the transformer, and the transformer is configured to have a turns ratio between the primary-side winding and the secondary-side winding in which a return current flowing on a side of the primary-side winding is smaller than a current capacity of the transformer drive circuit and the current generating the voltage causing the reverse recovery of the rectifier flows through the commutation device.