Mutual-inductor bipolar signal transfer circuit

The utility model discloses a mutual-inductor bipolar signal transfer circuit, mutual-inductor commonly used response output contains the interchange small-signal of positive negative bipolar nature, should exchange the small-signal earlier through RC filter circuit elimination high frequency interference signal, then carries out alternating voltage lifting conversion through voltage lifting converting circuit, finally converts the 3V voltage of the positive voltage signal, 3V reference circuit output that ordinary singlechip can receive into as the power of second grade 1.8V reference circuit, and the 1.8V voltage of second grade 1.8V reference circuit output is as the lifting voltage source of interchange small-signal. The utility model discloses having creatd fortune commonly used and having put converting circuit, can make relevant scheme save the cost that fortune was put, the power output that the while put the power supply for fortune also can save, reduces the cost of relevant signal acquisition class product by a wide margin, and the precision is through actually verifying the requirement of satisfying the like product simultaneously.