Silicon controlled rectifier rectification feedback apparatus

The invention discloses a silicon controlled rectifier rectification feedback apparatus comprising a positive silicon controlled rectifier, a single-phase bridge-type current converting circuit, and a control unit. The single-phase bridge-type current converting circuit comprises a first input end, a second input end, a first output end, and a second output end. The first input end and the second input end are connected with the output of the positive silicon controlled rectifier. The first input end is connected with a first diode and a first controllable power device. The second input end is connected with a second controllable power device and a second diode. The silicon controlled rectifier rectification feedback apparatus may achieve rectification and energy feedback functions and a high power factor at a power grid side, and prevent inversion faults or the inversion faults from being expanded.