The utility model relates to a high pressure alternating current -direct current voltage transducer, including the electrical power generating system module, and rather than continuous signal isolation and the delivery module of circuit, be provided with two sets of parallelly connected current -limiting resistor R1~R6 before signal isolation and delivery module input, R7~R9, two sets of current -limiting resistor front sides respectively with the signal connection module in voltage signal input terminal 3, 4 link to each other, be connected conversion resistance R10 at signal isolation with the delivery module output, and continuous operation zero set module, the setting is used for the fortune of the proportional relation of last output of conditioning signal and input to put amplifier circuit after operation zero set module, fortune is put and is provided with filter circuit behind the amplifier circuit, amplifier circuit is put to fortune, filter circuit respectively with the signal output module in no filtering output signal terminal terminal 6, filtering output signal terminal terminal 7 links to each other. This application relies on hall changer effectual electric isolation between with measured signal and test equipment, signal output through or do not pass through filter circuit, the test condition of providing convenience for test equipment.