JP3192619U - AC potential treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an AC potential therapy device which secures a positive / negative wave high value ratio of an alternating current applied to a living body to, for example, 1: 3 even if the place of use or a form of use of an insulating coated conductive mat for applying an AC high voltage to a living body is changed. .. SOLUTION: A series circuit of a diode D1 and a resistor R1 is connected in parallel to a series circuit of a diode D1 and a resistor R1 at a high voltage end P1 of a secondary coil L2 in an AC step-up transformer T. A positive voltage divider circuit B2 in which a resistor R3 is connected in series to a diode toward the ground end is connected between the other end and the ground potential secondary coil ground end P2 while connecting one end of the circuit B1. Then, the high-pressure alternating current obtained from the voltage dividing output end b between the voltage dividing circuits B1 and B2 is supplied to the conductive mat m as a living body applied alternating current, so that the living body is applied as the usage pattern of the conductive mat m changes. Even if the AC voltage changed, the positive / negative wave height ratio of this AC could be secured at a predetermined ratio, for example, 1: 3. [Selection diagram] Fig. 1

Description

The present invention relates to an alternating-current potential treatment device, and in particular, the present invention relates to the change of the positive voltage and negative voltage of the alternating current even if the biological applied AC voltage changes due to changes in the usage place and usage pattern of the insulating mat. The present invention relates to an AC potential treatment device capable of ensuring a substantially constant peak value ratio (hereinafter referred to as a positive / negative peak value ratio in the present application).

As a conventional AC potential treatment device, for example, Patent No. 260957 previously proposed by the applicant of the present application.
As in Japanese Patent No. 4 (Patent Document 1), a positive voltage bleeder circuit (positive voltage dividing circuit) provided at both ends of a high-voltage secondary coil of an AC step-up transformer generates waves of positive and negative voltages applied to a living body. By setting the high value ratio to about 1: 3 and applying an alternating potential to the living body at a ratio equal to the ideal ratio of positive and negative ions in a healthy human body, the potential therapeutic effect is effective and immediate. In addition, an AC potential treatment device that prevents the occurrence of a biological rejection reaction is well known.

In this Patent Document 1, as shown in paragraph 0009 and a gazette drawing (FIG. 3 attached to the present application), a high voltage end P1 of a high voltage secondary coil L2 of a step-up transformer T in which a primary coil L1 is connected to a commercial power supply AC.
A series circuit of a resistor R2 and a diode D2 directed to the ground end is connected in series with a parallel circuit of a diode D1 directed to the high-voltage end and a resistor R1 between the ground terminal P2 and the ground terminal P2. A high-voltage alternating current having a peak value ratio of positive voltage to negative voltage of about 1: 3 is obtained from the connection part b1, and the high-voltage alternating current is passed through the protective output terminal b2 through the protective resistor R0 of about 10 MΩ (megohm). This is an AC potential treatment device that supplies power to m as a living body applied AC.

However, in this document 1, as shown in the above paragraph, the publication drawing, and FIG. 3 attached to the present application, 1 MΩ between the ground potential line E of the transformer primary coil L1 and the ground terminal P1 of the secondary coil L2.
The grounding terminal P2 is held at the ground potential by connecting a protective resistor R of a certain degree.

Further, paragraph 0010 of this document 1 states that “when a diseased part such as a patient's waist is placed on a conductive mat m laid on a floor of a house with an insulating sheet and insulated from the ground, a positive voltage and a negative voltage are expressed. However, such an AC potential treatment device is not limited to Patent Document 1 and is disclosed in, for example, Japanese Patent Application Laid-Open No. S58-58. 146361
Conventional examples such as Japanese Patent No. 2 (Patent Document 2) and Japanese Patent No. 4217814 (Patent Document 3)
High-voltage alternating current was fed as a living body applied alternating current to the conductive mat m with an insulating coating through a protective resistance of about 10 MΩ.

In the conventional conductive mat power feeding means as described above, the resistance to ground (resistance) of the protection output terminal b2 is set to the resistance value of the resistance R2 of about 12 MΩ in FIG. The added resistance value is as large as about 22 MΩ, and the greater the value of each resistance, the more the positive and negative of this alternating current will change if the living body applied alternating voltage changes with the variation of the place and form of use of the conductive mat. This causes an essentially large problem that the peak value ratio fluctuates greatly.

However, the known AC potential treatment devices including the AC potential treatment devices of Patent Documents 1 to 3 described above, even when the AC voltage applied to the living body changes due to changes in the place and form of use of the conductive mat, It seems that there was no intention of product development from the beginning to keep the AC positive / negative wave peak value ratio almost constant, and even today, high-voltage AC voltage that has passed through a protective resistance different from the voltage dividing resistance is Is applied to the living body through a capacitance (capacitance) corresponding to the variation of the usage pattern according to the dielectric constant of the insulating coating existing between the living body and the affected part.

The capacitance varies greatly depending on variations in the use form of the conductive mat, such as the location of the conductive mat m, the manner in which the conductive mat insulating coating is in close contact with the affected part, and the manner of use, for example, insulation of the second floor of a wooden house. In the case where one wrist is placed on the insulation coating of a rectangular conductive mat of about 30 x 40 cm placed on a conductive bed, the capacitance to ground between the conductive mat and the ground via one wrist in normal use Is about 45 pF (picofarad) including floating capacity, and the impedance to ground at 70 Hz of the conductive mat is about 50 MΩ.
Degree.

On the other hand, when the one-leg calf part is placed on the conductive mat m under the same usage conditions as in the above case, the capacitance is about 220 pF including the floating capacity, and the impedance at 70 Hz. Is about 10 MΩ, and when the patient's waist and back are in close contact with the entire surface of the rectangular conductive mat on the futon laid on the first floor of the wooden house, the insulation between the conductive mat and the living body or the ground The capacitance of 11 is approximately 11 including the floating capacity.
It becomes about 00 pF, and the impedance at 70 Hz is about 2 MΩ.

Specifically, the output voltage of the secondary coil L2 in the circuit of Patent Document 1, that is, the circuit shown in FIG. 3 attached to the present application, is 14 KV (kilovolts) in peak value, and the resistance R1 in parallel with the diode D1 is 18 MΩ · The other resistor R2 is set to 12 MΩ, and the living body between the protection output terminal b2 in the unloaded state from which the conductive mat m is removed and the ground potential line E from the protection output terminal b2 having passed through the protection resistor R0 of 10 MΩ. As a result of measuring the applied AC voltage e with an oscilloscope using a high-voltage probe having a ground impedance of about 100 MΩ, the negative voltage of the protective output terminal b2 is 12.613 KV, the positive voltage is 5.259 KV, and the positive and negative wave The high price ratio (voltage ratio) is
1: 2.398, the measurement result was equal to the calculation result obtained by connecting 100 MΩ between the protective output terminal b2 and the ground potential line E.

Therefore, a rectangular conductive mat m of about 30 × 40 cm is connected to the protective output terminal b2 as shown in FIG. 3, and a living body applied alternating current is applied to the living affected area through a protective resistance R0 of about 10 MΩ and an insulating coating of the conductive mat m. In this state, the biologically applied AC voltage e between the protective output terminal b2 and the ground potential line E was calculated based on FIG. 3 (however, the decimal places of 4 digits or less are rounded off).

As a result, since the impedance to ground of the conductive mat m on which one wrist is placed is about 50 MΩ as described above, the positive voltage at the protection output terminal b2 is 14 × 10.27 / 28.02.
7 x 50/61 = 4.106 KV, and the negative voltage is 14 x 50/61 = 11.475 K
V, the positive / negative wave peak value ratio is 4.106: 11.475 = 1: 2.779, and in the case where the calf portion of one leg is placed, the positive output of the protection output terminal b2 is positive. The voltage is 14x
7.636 / 25.636 × 10/21 = 1.986 KV, and the negative voltage is 14 × 10
/21=6.667 KV, the positive / negative peak value ratio is 1.986: 6.667 = 1: 3.35
7

On the other hand, since the impedance to ground of the conductive mat m having the living body in close contact with the entire surface is about 2 MΩ as described above, the positive voltage of the protective output terminal b2 is 14 × 6.24 / 24.24 × 2/13 =
The negative voltage is 14 × 2/13 = 2.154 KV, and the positive / negative peak value ratio is 0.554: 2.154 = 1: 3.889.

Therefore, the alternating-current potential treatment device of Patent Document 1 has a conductive mat m in which the difference in the positive / negative peak value ratio of the AC applied to the living body due to the change in the location of the conductive mat and the usage pattern is on the one wrist. With the conductive mat m with the back and the like in close contact with the entire surface, 3.889−2.795 = 1.0
94. Since there is an unstable element in which the peak value ratio fluctuates as much as 32.73% with respect to the average value of each peak value ratio = 3.342, the circuit of Patent Document 1 depends on the state and size of the affected part. Has a fundamental and serious problem that it may not be used as an AC potential treatment device.

The cause of the above problem is that the positive / negative peak value ratio of the living body applied alternating current of the conductive mat with the affected part in close contact with the entire surface is 2.154−0.554 = 1.60 KV at the protection output terminal b2 in FIG. Since the positive voltage and the negative voltage at the interconnection b1 through the protective resistor R0 become 0.8 KV which is almost halved by the voltage drop of the protective resistor R0, the voltage drop due to the positive shunt current flowing through the resistor R2 Can be estimated to be because the positive voltage drop of the conductive mat cannot be suppressed much.

That is, when the positive voltage of the living body applied AC at the protection output terminal b2 in the conventional circuit shown in FIG. 3 decreases due to the change in the arrangement location and usage of the conductive mat m, the resistance R1 and the protection R1 are protected according to the decrease. Although the voltage drop of the resistor R0 increases, the voltage of the interconnection b1 does not increase so much as described above due to the voltage drop of the protective resistor R0, and when the AC positive voltage of the protection output terminal b2 rises, this time The voltage drop of the resistor R1 and the protective resistor R0 decreases according to the increase, but it can be presumed that the voltage of the interconnection part b1 does not decrease so much.

In addition to the above-mentioned Patent Documents 1 to 3 having the above-mentioned fundamental and big problems, JP-A-200200
As described in Japanese Patent Laid-Open No. 6-239032 (Patent Document 4), an intermediate tap is provided in the high-voltage secondary coil of the AC step-up transformer, and this tap voltage is used to indicate that the positive / negative peak value ratio of the AC applied to the living body can be a predetermined ratio. Potential treatment devices are also well known.

In this conventional example, in order to prevent the occurrence of a high voltage leak or a layer short between the intermediate tap of the high voltage secondary coil and other electrical components in the AC step-up transformer and / or a line between the intermediate tap and the high voltage secondary coil. From the viewpoint of ensuring safety against high voltage electricity, the secondary coil is divided into a low voltage side and a high voltage side with the intermediate tap as a boundary, and one bobbin is provided for each of the low voltage side and the high voltage side in addition to the primary coil bobbin. Since a single bobbin is required, there is an essential problem that the step-up transformer is large and heavy, and the cost is high.

A novel protective and shared voltage dividing circuit according to the present invention in which the protective resistor in the conventional example can also be used as a voltage dividing resistor without using the intermediate tap of the high voltage secondary coil having such a big problem. If used, the grounding impedance (resistance) of the conductive mat can be reduced, and unstable elements in Patent Documents 1 to 3 should be wiped away. An AC potential treatment device that has eliminated fluctuations in the peak value ratio has not yet existed in the world.

Japanese Patent No. 2609574 JP 58-146361 A Japanese Patent No. 4217814 JP 2006-239032 A

The object of the present invention is to ensure that the alternating current positive / negative peak value ratio is a predetermined ratio, for example, 1 to 3, even if the living body applied alternating voltage changes greatly due to changes in the usage place and usage form of the conductive mat. There is.

In order to achieve the above-described object of the present invention, in the present invention, in constructing an AC potential treatment device for performing treatment by applying an AC high voltage to a living body from a conductive mat with insulating coating, Protective voltage-dividing circuit in which a series circuit of a diode and a resistor in the opposite direction is connected in parallel to a series circuit of a diode and a resistor directed to the high-voltage end at the high-voltage end of the secondary coil in the AC step-up transformer connected with the coil Connect one end of the.

Next, a positive voltage divider circuit in which a resistor is connected in series to a diode directed to the ground terminal is connected between the voltage dividing output terminal at the other end of the voltage dividing circuit and the ground coil secondary coil. By supplying a high-voltage alternating current obtained from the partial pressure output end to the conductive mat as a living body applied alternating current,
Even if the AC voltage applied to the living body changes as the conductive mat is used, the AC positive / negative peak value ratio can be maintained at a predetermined ratio.

However, the value of the resistance in series with the reverse diode is set to 3 times the value of the resistance in series with the diode toward the high-voltage end, and the resistance in the positive voltage dividing circuit is set to half the value of this resistance. By setting the value, it is possible to obtain a high-voltage alternating current with a positive / negative wave peak value ratio of 1: 3 from the divided voltage output end, and by feeding the high-voltage alternating current to the conductive mat m as a living body applied alternating current, the conductive mat m
Even if the AC voltage applied to the living body changes in accordance with the change in the usage pattern, the AC positive / negative peak value ratio can be ensured in the ratio of 1: 3.

According to the present invention, the two protective voltage dividing resistors provided in the protective voltage dividing circuit eliminate the need for the protective resistor connected in series only to the conductive mats in Patent Documents 1 to 3. The resistance to ground of the conductive mat can be reduced by the resistance value, and the alternating current voltage applied to the living body greatly changes with the variation in the place and form of use of the conductive mat. There is an excellent effect of being able to secure one to three.

The reason why the present invention can achieve the above effect is that if the positive voltage of the living body applied alternating current at the partial pressure output end is reduced due to the change in the arrangement place and usage pattern of the conductive mat, the protection and shared portion is correspondingly reduced. Although the voltage drop of the voltage circuit increases, the voltage drop of the positive voltage divider circuit decreases, so it can be assumed that the voltage drop can be suppressed, and if the positive voltage of the living body applied AC rises, Thus, although the voltage drop of the protective voltage dividing circuit decreases, it can be estimated that the voltage increase can be suppressed because the voltage drop of the positive voltage dividing circuit increases.

In short, according to the present invention, even if the AC voltage applied to the living body changes greatly due to changes in the location and usage of the conductive mat, the resistance in each voltage dividing circuit can be canceled out. Each voltage drop automatically increases and decreases, so even if the AC voltage applied to the living body from the conductive mat changes greatly, the positive / negative peak value ratio of this AC can be made almost unchanged. Since the elements can be surely wiped off, the AC potential treatment device of the present invention has an excellent effect that the AC potential therapy can always be performed at a predetermined positive / negative peak value ratio.

In addition, as described in the paragraph 0024, while setting the value of the other resistor in the protective voltage dividing circuit to a value of one third of the resistance value in series with the diode in the reverse direction, the reverse direction If the value of the resistance in the positive voltage dividing circuit is set to half the value of the resistance in series with the diode, a high-voltage alternating current with a positive / negative peak value ratio of 1: 3 can be obtained from the voltage dividing output terminal. Even if the AC voltage applied to the living body changes due to changes in the usage pattern of the mat, the positive / negative peak value ratio of this alternating current can be secured to 1: 3, so it is always ideal for positive and negative ions in a healthy human body everywhere. An AC potential could be applied to the living body at a rate equal to the abundance ratio, and the potential treatment effect was effective and immediate, and an AC potential treatment could be added while preventing the occurrence of a biological rejection reaction.

The circuit diagram which shows embodiment of the alternating current potential treatment device of this invention Circuit diagram showing another embodiment of the present invention The circuit diagram which shows the principal part Example of the conventional alternating current potential treatment device

Next, an embodiment of the present invention will be described with reference to the drawings. In constructing an AC potential treatment device that performs treatment by applying an AC high voltage to a living body affected part through an insulating coating conductive mat, 50 to 150 Hz ・ When obtaining a sine wave with a peak value of about 14 KV or a distorted wave AC high voltage, the commercial AC power supply itself or an inverter power supply by a low frequency oscillation type or a pulse width modulation type is fixed. Alternatively, the AC output of a variable-frequency active low-frequency AC power supply circuit A is supplied to the primary coil L1 of the known step-up transformer T in FIG.

However, a protective grounding resistor R of about 1 MΩ · 3 W is connected as shown in FIG. 1 between the ground potential P2 of the ground potential in the high voltage secondary coil L2 of the transformer T in FIG. 1 and the commercial AC input line. Then, the grounding terminal P2 is grounded with a general working ground wire provided on a pole transformer or the like of a commercial AC power supply, or the grounding terminal P2 is connected to the ground directly or through a protective grounding resistor R. The potential of the ground terminal P2 is held at the ground potential.

Next, as shown in FIG. 1, the high-voltage end P1 of the secondary coil L2 in the transformer T has a diode D1 directed toward the high-voltage end, that is, a diode D1 conducting in the high-voltage end direction, and 10M.
For a series circuit with a resistor R1 of about Ω · 3W, a diode D2 and 30MΩ · 3W in the opposite direction
One end of a protection / voltage-dividing circuit B1 in which a series circuit with a resistance R2 is connected in parallel is connected, and the other end of the voltage-dividing circuit B1 and the grounding terminal P2 are directed toward the grounding terminal. A positive voltage dividing circuit B2 in which a resistor R3 of about 15 MΩ · 3 W is connected in series to the diode D3, that is, the diode D3 that conducts in the direction of the ground terminal is connected as shown in FIG.

That is, the value of the resistor R2 in series with the diode D2 in the reverse direction as described above (for example, 30M
The value of the other resistor R1 in the protective / divided voltage dividing circuit (for example, 10 MΩ) is set to the value of 1/3 of (Ω), and the value of the resistor R2 in series with the diode D2 in the reverse direction (for example, 30 MΩ) By setting the value of the positive voltage dividing circuit resistance R3 to a half value (for example, 15 MΩ), a high voltage alternating current with a positive / negative peak value ratio of 1: 3 can be obtained from the voltage dividing output terminal. By feeding the conductive mat m as alternating current applied to the living body, even if the alternating voltage applied to the living body changes due to changes in the location of the conductive mat m and the usage pattern, the alternating current positive / negative peak value ratio is approximately one pair. 3
Can be secured.

However, the connection positions of the diode D1 and the resistor R1 and / or the diode D2 and the resistor R2 and / or the connection position of the diode D3 and the resistor R3 in FIG. If the voltage at the high voltage end P1 of the transformer secondary coil L2 is about 14 KV as described above, the values of the resistors R1 and R2 in the protection / voltage dividing circuit B1 are respectively high voltage. From the viewpoint of ensuring safety against electricity, for example, 5 MΩ
It is desirable to set more than about.

Since the AC potential treatment device according to the present invention has the above-described configuration, in order to use it, it is laid on a wooden house or an insulating bed placed on the floor of a high-rise building and insulated from the ground. ×
When an affected part such as a patient's waist is placed on an insulating coating of a rectangular conductive mat m of about 40 cm, a positive / negative wave peak value ratio is a predetermined ratio, for example, an AC high potential of 1: 3 passes through the insulating coating of the conductive mat m to the affected part. Can be applied.

Before using the AC potential treatment device according to the present invention, the AC voltage of the transformer secondary coil L2 and the resistance values of the resistors R1 to R3 in the embodiment of the present invention shown in FIG. 1 and FIG. Thus, the living body applied AC voltage e between the partial pressure output terminal b and the ground potential line E was measured in the same manner as the measurement method of the conventional example.

Specifically, the AC voltage of the secondary coil L2 is set to 14 KV as a peak value, and the resistance values of the resistors R1, R2, and R3 are set to 10 MΩ, 30 MΩ, and 15 MΩ, respectively, as described above, and then the voltage is divided. As a result of measuring the biologically applied AC voltage e between the unloaded partial pressure output terminal b with the conductive mat m removed from the output terminal b and the ground potential line E with the oscilloscope having a resistance to ground of 100 MΩ, The negative voltage at the pressure output terminal b is 12.613 KV and the positive voltage is 4.2
At 04 KV, the positive / negative peak value ratio was 1: 3.000, which was a measurement result equal to the calculation result obtained by connecting 100 MΩ between the protective output terminal b2 and the ground potential line E.

Next, a rectangular conductive mat m of about 30 × 40 cm is connected to the partial pressure output end b as shown in FIG. 1 and FIG. 2, and the partial pressure in a state where a living body applied alternating current is applied to the living diseased part through the insulating coating of the conductive mat m. The biologically applied AC voltage e between the output terminal b and the ground potential line E was calculated in the same manner as described above.

As a result, since the impedance to ground of the conductive mat m on which one wrist is placed is about 50 MΩ as described above, the positive voltage at the divided output terminal b is 14 × 11.591 / 41.59.
1 × 50/51 = 3.825 KV, and the negative voltage is 14 × 50 / 61.00 = 11.4
At 75 KV, the positive / negative wave peak value ratio is 3.825: 11.475 = 1: 3.000, and the positive voltage at the protective output terminal b2 when the calf part of one leg is placed Is 14x
6.346 / 36.346 × 10/11 = 2.222 KV, and the negative voltage is 14 × 10
/21.00=6.667 KV, the positive / negative peak value ratio is 2.222: 6.667 = 1: 3
. 000.

On the other hand, since the grounding impedance of the conductive mat m having the living body part in close contact with the entire surface is about 2 MΩ as described above, the positive voltage at the divided output terminal b is 14 × 2.500 / 32.500 × 2 /
3 = 0.718 KV, the negative voltage was 14 × 2/13 = 2.154 KV, and the positive / negative peak value ratio was 0.718: 2.154 = 1: 3.000.

As described above, according to the present invention, the positive / negative peak value ratio of the AC applied to the living body does not change even if the arrangement location of the conductive mat m and the usage pattern fluctuate greatly. In the present invention, since there is no fluctuation in the positive / negative peak value ratio, the fluctuation factor of the peak value ratio in Patent Document 1 can be reliably wiped off. Alternating current potential treatment can always be performed everywhere at a predetermined positive / negative peak value ratio, for example, 1: 3.

The reason why the present invention can achieve the above-described effect is that the conductive mat m is disposed due to the increase in the capacitance between the conductive mat m and the living body affected part according to the location of the conductive mat m and the change in usage pattern.
If the AC voltage applied to the living body decreases, the voltage drop of the protective voltage dividing circuit B1 increases according to the decrease, but the voltage drop of the positive voltage dividing circuit B2 decreases corresponding to the increase. It can be estimated that the voltage drop can be suppressed.

On the other hand, if the living body applied AC voltage rises due to the capacitance reduction between the conductive mat m and the living body affected part, the voltage drop of the protection / divider circuit B1 decreases according to the rising amount. In response to this, since the voltage drop of the positive voltage dividing circuit B2 increases,
It can be inferred that the voltage increase can be suppressed corresponding to this increase.

In short, according to the present invention, even if the living body applied AC voltage of the conductive mat m fluctuates due to the change in the location of the conductive mat m and the usage pattern, each voltage dividing circuit B1 so as to cancel this voltage fluctuation.
・ Because the voltage drop of B2 automatically increases or decreases, even if the living body applied AC voltage changes due to changes in the location of the conductive mat m and the usage pattern, this change in the AC peak voltage ratio can be eliminated. As a result, the unstable elements in the respective conventional examples could be wiped off.

A ... Low frequency AC power supply circuit P1 ... Secondary coil high voltage end B1 ... Protective and voltage dividing circuit P2 ... Secondary coil grounding terminal B2 ... Positive voltage voltage dividing circuit R1 to R3 ... Resistor b ... Voltage division output terminal R ... Protective ground Resistance T ... Boost transformer E ... Ground potential line L1 ... Transformer primary coil m ... Insulating conductive mat L2 ... High voltage secondary coil

Claims (2)

In a potential therapy device that applies an alternating high voltage to a living body from a conductive mat m with an insulation coating and performs treatment, a diode D1 and a resistance directed to the high voltage end are connected to the high voltage end P1 of the secondary coil L2 of the alternating current step-up transformer T. One end of a protective and voltage dividing circuit B1 in which a series circuit of a diode D2 and a resistor R2 connected in parallel is connected in parallel to the series circuit with R1, and the other end and a ground coil secondary terminal P2 with a ground potential In the meantime, the resistor R3 is connected to the diode D3 directed to the ground terminal.
Are connected in series, and a high voltage alternating current obtained from the voltage dividing output terminal b between each of the voltage dividing circuits B1 and B2 is fed to the conductive mat m as a biologically applied alternating current. An alternating-current potential treatment device characterized in that a positive / negative peak value ratio of alternating current is secured at a predetermined ratio with respect to a change in living body-applied alternating voltage accompanying a change in usage pattern of the mat m. In a potential therapy device that applies an alternating high voltage to a living body from a conductive mat m with an insulation coating and performs treatment, a diode D1 and a resistance directed to the high voltage end are connected to the high voltage end P1 of the secondary coil L2 of the alternating current step-up transformer T. One end of a protective and voltage dividing circuit B1 in which a series circuit of a diode D2 and a resistor R2 connected in parallel is connected in parallel to the series circuit with R1, and the other end and a ground coil secondary terminal P2 with a ground potential In the meantime, the resistor R3 is connected to the diode D3 directed to the ground terminal.
Is connected in series, and the value of the resistor R2 in series with the diode D2 is set to be three times the value of the resistor R1 in series with the diode D1, and half the value of the resistor R2 is set. By setting the value of the resistor R3, a high-voltage alternating current with a positive / negative wave peak value ratio of 1: 3 is obtained from the divided voltage output end b, and this high-voltage alternating current is supplied to the conductive mat m as a living body applied alternating current. An AC potential treatment device characterized in that the AC positive / negative peak value ratio is ensured in the ratio of 1 to 3 with respect to a change in the AC voltage applied to the living body accompanying a change in usage pattern of the conductive mat m.

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