The present invention can be changed using the location and usage of the insulated conductive mat for applying an AC high voltage to the living body , to provide an alternating potential therapy apparatus ensuring the positive and negative peak value ratio of the biological the applied AC for example, 1 to 3 . A to the high pressure end P1 of the secondary coil L2 in the AC step-up transformer T, to a series circuit of a diode D1 and resistor R1, and is protected combined partial pressure of the series circuit of the diode D2 in reverse resistor R2 connected in parallel connection with connecting the one end of the circuit B1, between the secondary coil ground end P2 of the other end and ground potential , a positive voltage divider B2 of the resistor R3 to a diode connected in series towards the ground terminal is said to be to power the high voltage alternating current obtained from a divided voltage output terminal b between the voltage divider B1 B2 as a biological applying alternating current to the conductive mat m, with the variation in the usage of the conductive mat m, biological application also AC voltage is changed , a predetermined ratio the positive and negative peak value ratio of this exchange , for example, was able to secure a one-to- 3 . [ Selection Figure ] Figure 1【課題】生体に交流高電圧を印加する絶縁被覆導電マットの使用場所や使用形態を変化させても、生体印加交流の正負波高値比率を例えば1対3に確保する交流電位治療器を提供する。【解決手段】交流昇圧トランスTにおける2次コイルL2の高圧端P1に、ダイオードD1と抵抗R1との直列回路に対し、逆向きのダイオードD2と抵抗R2の直列回路を並列接続した保護兼用分圧回路B1の1端を接続すると共に、その他端と大地電位の2次コイル接地端P2との間には、この接地端に向けたダイオードに抵抗R3を直列接続した正電圧分圧回路B2を接続し、前記各分圧回路B1・B2間の分圧出力端bから得た高圧交流を前記導電マットmに生体印加交流として給電することで、導電マットmの使用形態の変動に伴い、生体印加交流電圧が変化しても、この交流の正負波高値比率を所定比率、例えば1対3に確保できた。【選択図】図1
