Converter soft start circuit and converter

The invention discloses a converter soft starting circuit and a converter, and relates to the technical field of converter alternating current starting, and the converter soft starting circuit comprises a charging module which is connected with an alternating current power supply, a bus capacitor of the converter and a filter capacitor, controls the alternating current power supply to access the bus capacitor and the filter capacitor, and charges the bus capacitor and the filter capacitor; when the target voltage output by the AC power supply crosses the zero point, the AC power supply is disconnected with the bus capacitor and the filter capacitor; the starting module is connected with an AC power supply and a filter capacitor, and is connected with a bus capacitor through a power module of a converter. And when the target voltage crosses the zero point, controlling the AC power supply to be connected to the filter capacitor and controlling the AC power supply to be connected to the bus capacitor through the