The present phase is alternately supplied to the step-up transformer of the primary coil half-sine voltage of 180 different positive and negative two systems, to provide alternating potential treatment device obtaining a biological applied AC output of high pressure from the secondary side. By the width modulation already high frequency pulse of A second phase has been pulse width modulated at 180 two different strains of half-sine signal each other lineage, and positive and negative phases are different from each other by 180 each DC voltage of positive and negative, respectively, to the switching control After obtaining the width-modulated been amplified pulse output of the two systems, they each pulse output respectively demodulated separately via the demodulating circuit 4 which includes a parallel circuit of a choke coil and the diode, the phase is 180 different from the positive and negative two systems from each other as well obtain demodulated half-sine output, half-sine outputs of the positive and negative step-up transformer primary coil L1 is supplied alternately by the positive voltage bleeder circuit 5 high sinusoidal alternating current generated in the transformer secondary coil L2 peak value ratio of a positive voltage and a negative voltage is obtaining a biological the applied AC of 1: 3.BACKGROUND.【課題】位相が180°異なる正負2系統の正弦半波電圧を昇圧トランスの1次コイルに交互に供給し、2次側から高圧の生体印加交流出力を得る交流電位治療器を提供する。【解決手段】位相が互いに180°異なる2系統の正弦半波信号でパルス幅変調した2系統の幅変調済高周波パルスにより、正負の各直流電圧をそれぞれスイッチング制御して位相が互いに180°異なる正負2系統の幅変調済増幅パルス出力を得た後、これら各パルス出力をそれぞれチョークコイルとダイオードとの並列回路を含む復調回路4を経て各別に復調し、位相が互いに180°異なる正負2系統の復調済正弦半波出力を得ると共に、これら正負の正弦半波出力を昇圧トランスの1次コイルL1に交互に供給し、トランス2次コイルL2に発生した高圧正弦波交流を正電圧ブリーダ回路5により正電圧と負電圧との波高値比率が1対3の生体印加交流を得る。【選択図】図1
