Current detection circuit of intermediate frequency power supply

The utility model discloses a current detection circuit of an intermediate-frequency power supply, which relates to the technical field of intermediate-frequency power supplies and comprises a three-phase power supply module used for rectifying and filtering alternating-current electric energy; the intelligent control module is used for signal receiving and module control; the inversion regulation module is used for performing inversion processing on the electric energy output by the three-phase power supply module and performing voltage regulation and electric energy output by the output module; the zero-cross detection module is used for zero-cross detection; the current sampling module is used for current sampling; and the current judgment module is used for judging the difference condition of the electric energy current in different periods. The current detection circuit of the medium-frequency power supply controls the medium-frequency power supply through the intelligent control module, the three-phase