Patent ID: 9742336
Date: 2017-08-22
CPC Classifications: F24F,H02M,H02P

Claim:
1. A power converter comprising: a rectifying unit configured to rectify an input AC current; an interleave converter (i) that has a plurality of converters that includes a first converter and a second converter and (ii) that is configured to convert rectified output from the rectifying unit to DC power and output the converted DC power; a capacitor connected to an output terminal of the interleave converter; a converter controller configured to control the interleave converter by calculating a load level of both terminals of the capacitor and changing a number of operating converters in the plurality of converters of the interleave converter based on the calculated load level of both terminals of the capacitor; an inverter connected between the capacitor and a motor and configured to convert the converted DC power to AC power and output the AC power to the motor; an output current detector configured to detect an output current flowing through the motor; and an inverter controller configured to control the inverter based on the detected output current, wherein the first converter in the interleave converter includes a first switching element of a first type and the second converter in the interleave converter includes a second switching element of a second type having a rated voltage higher than the first type, wherein the converter controller is configured to: wherein the inverter controller further comprises: