Alternating current sampling power supply board device for intelligent fusion terminal and signal conditioning method of alternating current sampling power supply board device

The invention discloses an alternating current acquisition power supply device for an intelligent fusion terminal. The alternating current acquisition power supply device comprises a metering board, a loop inspection board, an acquisition board and a power supply board, the metering board is respectively connected with the loop inspection board, the acquisition board and the power supply board, the loop inspection board is connected with the acquisition board, and the acquisition board is connected with the power supply board; the acquisition board comprises a combined current acquisition circuit and a combined voltage acquisition circuit; the input end of the combined current acquisition circuit is connected with the strong current interface, and the output end of the combined current acquisition circuit is respectively connected with the loop inspection board and the metering board; the input end of the combined voltage acquisition circuit is respectively connected with the strong current interface and the