CN1772316A - Electric potential therapeutical device - Google Patents

Abstract

To provide a potential treatment apparatus capable of inhibiting a variation in effects on a living body even when a setting of direct current voltage composition is changed after voltage has set. This potential treatment apparatus 1 comprises a first voltage setting input means 2 to input the setting of voltage effective value Erms, a second voltage setting input means 3 to input the setting on a scale of direct current voltage with a minus-shift MS, a voltage component calculating means 5 to calculate alternate current voltage component Eac and direct current voltage component Edc of an output voltage so that effective value of the output voltage cannot be far from the voltage effective value Erms inputted by the first voltage setting input means 2 based on the settings inputted by the first and second voltage setting input means, a high-voltage output means 6 to output the voltage which is the combination of the calculated alternate current voltage component Eac with the direct current voltage component Edc as an output voltage, and an output terminal 7.

Description

Electric potential therapeutic apparatus

Technical field

The present invention relates to a kind of organism be applied the electric potential therapeutic apparatus that high potential is treated, relate in particular to its high voltage generating unit.

Background technology

In the past, well-known electric potential therapeutic apparatus was as follows: the organism to electric insulation applies high voltage, make organism around produce electric field.This electric potential therapeutic apparatus is by improving the ionic equilibrium of organism, or to vegetative nervous system generation effect, thus to shoulder ache, headache, insomnia, chronic constipation etc. produce curative effect.

Fig. 7 shows two main user modes of existing electric potential therapeutic apparatus.Fig. 7 (a) shows the state that user uses electric potential therapeutic apparatus 101 on the seat, configuration chair 105 on the heat insulating lamella 102 that is layered on the floor, and mounting energising thin slice 103 on the present plane, will be connected on the lead-out terminal of electric potential therapeutic apparatus 101 from the high tension cable 104 that energising thin slice 103 extends.User is sitting on the chair 105 after with the operation display panel that is arranged on electric potential therapeutic apparatus 101 upper surfaces treatment pattern, treatment time, treatment voltage etc. being set.

Fig. 7 (b) shows the state that user uses electric potential therapeutic apparatus 101 on clinostatism, bedding 107 on heat insulating lamella 102 upper berths that are layered on the floor, and at the central part of bedding, just mounting energising thin slice 103 on suitable with the buttocks of the user position will be connected on the lead-out terminal of electric potential therapeutic apparatus 101 from the high tension cable 104 that energising thin slice 103 extends.User couches on bedding 107 after with the operation display panel that is arranged on electric potential therapeutic apparatus 101 upper surfaces treatment pattern, treatment time, treatment voltage etc. being set.

Existing electric potential therapeutic apparatus also utilizes the dc high voltage of ac high voltage or negative polarity, and the waveform that the dc high voltage of negative polarity is added in the ac high voltage has good therapeutic effect.

Therefore,, possess as existing electric potential therapeutic apparatus: high-tension transformer, boost commercial ac voltage and produce ac high voltage; The voltage variable device is slidac (slidac) that can change commercial ac voltage etc.; Dc high voltage generation circuit produces dc high voltage from the alternating voltage that has been carried out plus-minus by the voltage variable device; The voltage combiner circuit, above-mentioned ac high voltage and above-mentioned dc high voltage is synthetic, export.By above-mentioned voltage variable device, can change the dc offset voltage (for example patent documentation 1) in the output voltage.

Patent documentation 1: Japanese kokai publication hei 7-303706 communique (page 2, Fig. 1)

Summary of the invention

Yet, above-mentioned prior art has following problem points: after setting alternating voltage, when changing the setting of dc offset voltage, the virtual value of having synthesized the output voltage of alternating voltage and DC voltage changes, therefore, therapeutic effect produces rapid change, gives the stimulation that user surpasses to be needed.

Fig. 8 is the oscillogram of explanation the problems referred to above point.Waveform when Fig. 8 (a) is AC9000V output.Fig. 8 (b) is that the waveform under the situation of negative displacement-100% time has been carried out in AC9000V output.Negative displacement is the term of the DC voltage size of expression when making the DC voltage of negative polarity be added in the output voltage of electric potential therapeutic apparatus.

Fig. 9 is the figure of explanation negative displacement.Negative displacement is that (if alternating voltage is Eac, peak-to-peak value is for peak-to-peak value with the alternating voltage of electric potential therapeutic apparatus

The ratio of the negative peak of relative waveform.In common electric potential therapeutic apparatus, be that the direct current component shown in 0-50% to Fig. 9 (c) becomes from the direct current component shown in Fig. 9 (a)

-100% till scope in set.

Turn back to Fig. 8 (a), the positive-negative polarity peak swing of the alternating voltage of virtual value 9000V (following is AC9000V) is about 12700V, and peak-to-peak value (hereinafter to be referred as the pp value) is about 25400V.When being added in negative displacement-100% among this AC9000V, become the waveform shown in Fig. 8 (b).

When calculating the voltage effective value Erms of waveform of this Fig. 8 (b), be about 15600V, compare, can envision and produce very large current potential, field effect with AC9000V.

The present invention proposes in view of above-mentioned prior art problems point, and its purpose is to provide a kind of electric potential therapeutic apparatus, after voltage is set, even the setting of change DC voltage component also suppresses the change to the organism influence.

The electric potential therapeutic apparatus of invention 1 possesses: the first voltage setting input device, the setting of input voltage virtual value (Erms); The second voltage setting input device is imported the setting relevant with the size of DC voltage; The component of voltage calculating apparatus, according to setting by first and second voltage setting input device input, calculate the alternating voltage component (Eac) and the DC voltage component (Edc) of output voltage, make the virtual value of output voltage and the voltage effective value of importing by the first voltage setting input device (Erms) not have big difference; The high voltage output device will synthesize above-mentioned alternating voltage component (Eac) and above-mentioned DC voltage component (Edc) and the voltage that obtains, export as above-mentioned output voltage.

The main points of invention 2 are that in as invention 1 described electric potential therapeutic apparatus, the second voltage setting input device is with the negative polarity peak value of synthetic waveform

Peak-to-peak value with respect to alternating voltage component Eac Ratio (negative displacement: MS), import as the setting relevant with the size of above-mentioned DC voltage.

The main points of invention 3 are, in as invention 2 described electric potential therapeutic apparatus, above-mentioned component of voltage calculating apparatus, will be made as Erms by the voltage effective value that the first voltage setting input device is set, in the time of will being made as MS by the above-mentioned negative displacement that the second voltage setting input device is set

$\mathrm{Eac}=\sqrt{{\left(\mathrm{Erms}\right)}^2/(8\×{\mathrm{MS}}^2-8\×\mathrm{MS}+3)}\·\·\·\left(1\right)$

$\mathrm{Edc}=(2\mathrm{Eac}\×\mathrm{MS}-\mathrm{Eac})\×\sqrt{2}\·\·\·\left(2\right)$

Calculate alternating voltage component Eac and DC voltage component Edc from formula (1) and (2).

The main points of invention 4 are that in as invention 1 described electric potential therapeutic apparatus, the second voltage setting input device is exported DC voltage component (Edc) as the setting relevant with the size of above-mentioned DC voltage.

The main points of invention 5 are, in electric potential therapeutic apparatus as invention 4, above-mentioned component of voltage calculating apparatus, will be made as Erms by the voltage effective value that the first voltage setting input device is set, in the time of will being made as Edc by the dc voltage value that the second voltage setting input device is set

$\mathrm{Eac}=\sqrt{{\left(\mathrm{Erms}\right)}^2-{\left(\mathrm{Edc}\right)}^2}\·\·\·\left(3\right)$

Calculate alternating voltage component Eac by formula (3).

The main points of invention 6 are, as invention 1 to invention each described electric potential therapeutic apparatus of 5, the first voltage setting input device is the setting device that can set the voltage effective value of m (m is the integer more than or equal to 2) level, the second voltage setting input device is the setting device that can carry out the setting relevant with the size of the DC voltage of n (n is the integer more than or equal to 2) level, above-mentioned component of voltage calculating apparatus is read alternating voltage component (Eac) at least from having stored respectively the storage device of the component of alternating voltage at least (Eac) corresponding with the setting value of m * n group of first and second voltage setting input device in advance.

According to invention 1, following effect is arranged, promptly can provide a kind of electric potential therapeutic apparatus, this electric potential therapeutic apparatus possesses: the first voltage setting input device, the setting of input voltage virtual value (Erms); The second voltage setting input device is imported the setting relevant with the size of DC voltage; The component of voltage calculating apparatus, according to setting by first and second voltage setting input device input, calculate the alternating voltage component (Eac) and the DC voltage component (Edc) of output voltage, make the virtual value of output voltage and the voltage effective value of importing by the first voltage setting input device (Erms) not have big difference; The high voltage output device, the voltage that will synthesize above-mentioned alternating voltage component (Eac) and above-mentioned DC voltage component (Edc) and obtain, export as above-mentioned output voltage, thereby after setting effective voltage value, even the setting of change DC voltage component, also keep the virtual value of initial setting and the direct current part that superposes, suppressed change the organism influence.

According to invention 2, except having invention 1 described invention effect, also have following effect, promptly by this electric potential therapeutic apparatus is constituted: the second voltage setting input device is with the peak value of the negative polarity of synthetic waveform

Peak-to-peak value with respect to alternating voltage component Eac

Ratio (negative displacement: MS), import, thereby except virtual value is set, also set habitual in the past negative displacement value, provide a kind of operability high electric potential therapeutic apparatus as the setting relevant with the size of above-mentioned DC voltage.

According to invention 3, except having invention 2 described invention effects, also has following effect, promptly by this electric potential therapeutic apparatus is constituted: above-mentioned component of voltage calculating apparatus, will be made as Erms by the voltage effective value that the first voltage setting input device is set, in the time of will being made as MS by the above-mentioned negative displacement that the second voltage setting input device is set

$\mathrm{Eac}=\sqrt{{\left(\mathrm{Erms}\right)}^2/(8\×{\mathrm{MS}}^2-8\×\mathrm{MS}+3)}\·\·\·\left(1\right)$

$\mathrm{Edc}=(2\mathrm{Eac}\×\mathrm{MS}-\mathrm{Eac})\×\sqrt{2}\·\·\·\left(2\right)$

Calculate alternating voltage component Eac and DC voltage component Edc from formula (1) and (2), can provide a kind of and can correctly realize the voltage effective value set and the electric potential therapeutic apparatus of negative displacement.

According to invention 4, except having invention 1 described invention effect, also has following effect, promptly by this electric potential therapeutic apparatus is constituted: the second voltage setting input device, DC voltage component (Edc) is imported as the setting relevant with the size of above-mentioned DC voltage, provided a kind of by directly setting the electric potential therapeutic apparatus easy and simple to handle of dc voltage value.

According to invention 5, except having invention 4 described invention effects, also has following effect, promptly by this electric potential therapeutic apparatus is constituted: above-mentioned component of voltage calculating apparatus, will be made as Erms by the voltage effective value that the first voltage setting input device is set, in the time of will being made as Edc by the dc voltage value that the second voltage setting input device is set

$\mathrm{Eac}=\sqrt{{\left(\mathrm{Erms}\right)}^2-{\left(\mathrm{Edc}\right)}^2}\·\·\·\left(3\right)$

Calculate alternating voltage component Eac by formula (3), can provide a kind of and can correctly realize the voltage effective value set and the electric potential therapeutic apparatus of dc voltage value.

According to invention 6, except having invention 1 to each described invention effect of invention 5, also has following effect, promptly by this electric potential therapeutic apparatus is constituted: the first voltage setting input device is the setting device that can set the voltage effective value of m (m is the integer more than or equal to 2) level, the second voltage setting input device is the setting device that can carry out the setting relevant with the size of the DC voltage of n (n is the integer more than or equal to 2) level, above-mentioned component of voltage calculating apparatus is from having stored respectively the storage device of at least alternating voltage component (Eac) corresponding with the setting value of n * m group of first and second voltage setting input device in advance, at least read alternating voltage component (Eac), can provide a kind of by simple control theory, do not need to carry out complicated calculating, even the electric potential therapeutic apparatus of the virtual value inhibition of initial setting to the change of organism influence also kept in the setting of change DC voltage component.

Description of drawings

Fig. 1 is the general block diagram of structure of the embodiment one of the explanation electric potential therapeutic apparatus relevant with the present invention.

Fig. 2 is the general block diagram of structure of the embodiment two of the explanation electric potential therapeutic apparatus relevant with the present invention.

Fig. 3 is the block diagram of structure of the embodiment three of the explanation electric potential therapeutic apparatus relevant with the present invention.

Fig. 4 is the circuit diagram of the structure example of the high voltage output device among the explanation embodiment three.

Fig. 5 is the oscillogram that the virtual value to the output voltage of the electric potential therapeutic apparatus relevant with the present invention describes.

Fig. 6 is the circuit diagram of the variation of the high voltage output device among the explanation embodiment three.

(a) of Fig. 7 is the figure of the user mode of the electric potential therapeutic apparatus on the explanation seat, (b) is the figure of the user mode of the electric potential therapeutic apparatus on the explanation clinostatism.

The oscillogram that active voltage when Fig. 8 is the DC voltage stack that illustrates in the existing electric potential therapeutic apparatus changes.

(a) of Fig. 9 is the oscillogram of expression negative displacement (MS) for-50% o'clock waveform, (b) is the oscillogram of expression negative displacement (MS) for-75% o'clock waveform, (c) is the oscillogram of expression negative displacement (MS) for-100% o'clock waveform.

Symbol description

1: electric potential therapeutic apparatus

2: the first voltage setting input devices

3: the second voltage setting input devices

5: the component of voltage calculating apparatus

6: the high voltage output device

7: lead-out terminal

21,31: output transistor

22,32: diode

23,33: capacitor

24: high-tension transformer

25,35: windings

26,36: Secondary Winding

34: high-tension transformer

37: kenotron

43,44: divider resistance

46: capacitor

61: ac high voltage generation circuit

62: dc high voltage generation circuit

63: high resistance

The specific embodiment

With reference to the accompanying drawings, explain embodiments of the present invention.In addition, in the explanation of each following embodiment, high resistance is the resistance that has more than or equal to the resistance value of 1M Ω.In addition, in the following description, negative displacement MS is the negative polarity peak value of synthetic waveform

Peak-to-peak value with respect to alternating voltage component Eac

Ratio.

Embodiment one

Fig. 1 is the general block diagram of structure of the embodiment one of the explanation electric potential therapeutic apparatus relevant with the present invention.Present embodiment is characterised in that, imports the second voltage setting input device 3 of the setting relevant with the size of DC voltage and sets input with negative displacement MS.

In Fig. 1, electric potential therapeutic apparatus 1 possesses: the first voltage setting input device 2, the setting of input voltage virtual value Erms; The second voltage setting input device 3 is with the negative displacement MS input setting relevant with the size of DC voltage; Component of voltage calculating apparatus 5, according to setting by first and second voltage setting input device input, calculate the alternating voltage component Eac and the DC voltage component Edc of output voltage, make the virtual value of output voltage and the voltage effective value Erms that imports by the first voltage setting input device 2 not have big difference; High voltage output device 6 with having synthesized the alternating voltage component Eac that calculates and the voltage of DC voltage component Edc, is exported as output voltage; Lead-out terminal 7.

In addition; the energising thin slice that electric potential therapeutic apparatus 1 possesses power circuit, current protecting circuit, is connected the high tension cable on the lead-out terminal 7 and is connected the high tension cable top ends; but these and main points of the present invention do not have direct relation; and, therefore omitted diagram by conventionally known to one of skill in the art.

High voltage output device 6 possesses ac high voltage generation circuit 61, dc high voltage generation circuit 62, high resistance 63.

Ac high voltage generation circuit 61 produces the ac high voltage Eac according to the size of the AC portion setting value that is provided by component of voltage calculating apparatus 5.Dc high voltage generation circuit 62 produces the dc high voltage Edc according to the size of the direct current component setting value that is provided by component of voltage calculating apparatus 5.Ac high voltage generation circuit 61 is connected in series with dc high voltage generation circuit 62, and the waveform that dc high voltage Edc is added among the ac high voltage Eac outputs to lead-out terminal 7 by high resistance 63.

Component of voltage calculating apparatus 5, according to from the voltage effective value Erms of first voltage setting input device input, with MS from the input of the second voltage setting input device, and, calculate the alternating voltage component Eac and the DC voltage component Edc of output voltage according to following formula (1), (2).

$\mathrm{Eac}=\sqrt{{\left(\mathrm{Erms}\right)}^2/(8\×{\mathrm{MS}}^2-8\×\mathrm{MS}+3)}\·\·\·\left(1\right)$

$\mathrm{Edc}=(2\mathrm{Eac}\×\mathrm{MS}-\mathrm{Eac})\×\sqrt{2}\·\·\·\left(2\right)$

Component of voltage calculating apparatus 5, from alternating voltage component Eac and the DC voltage component Edc that calculates, AC portion setting value and direct current component are set in high voltage output device 6, and produce Eac, produce Edc from ac high voltage generation circuit 61 respectively from dc high voltage generation circuit 62.Thus, from lead-out terminal 7 output Edc is added to output voltage the Eac, the virtual value of output voltage becomes the value that approaches Erms.

In addition, certainly, the square root of formula (1) calculates and reaches

Value, intercept suitable number of significant digit.

Embodiment two

Fig. 2 is the general block diagram of structure of the embodiment two of the explanation electric potential therapeutic apparatus relevant with the present invention.Present embodiment is characterised in that the second voltage setting input device 4 of the setting that input is relevant with the DC voltage size is set input with dc voltage value Edc.

In Fig. 2, electric potential therapeutic apparatus 1 possesses: the first voltage setting input device 2, the setting of input voltage virtual value Erms; The second voltage setting input device 4 is with dc voltage value Edc input and the relevant setting of DC voltage size; Component of voltage calculating apparatus 5, according to setting by first and second voltage setting input device input, calculate the alternating voltage component Eac and the DC voltage component Edc of output voltage, make the virtual value of output voltage and the voltage effective value Erms that imports by the first voltage setting input device 2 not have big difference; High voltage output device 6 with having synthesized the alternating voltage component Eac that calculates and the voltage of DC voltage component Edc, is exported as output voltage; Lead-out terminal 7.

In addition; the energising thin slice that electric potential therapeutic apparatus 1 possesses power circuit, current protecting circuit, is connected the high tension cable on the lead-out terminal 7 and is connected the high tension cable top ends; but these and main points of the present invention do not have direct relation; and, therefore omit diagram by as well known to those skilled in the art.

High voltage output device 6 possesses ac high voltage generation circuit 61, dc high voltage generation circuit 62, high resistance 63, but these structures are identical with embodiment one, therefore omits explanation.

Component of voltage calculating apparatus 5, according to from the voltage effective value Erms of first voltage setting input device input, with Edc from the input of the second voltage setting input device, and, calculate the alternating voltage component Eac of output voltage according to following formula (3).

$\mathrm{Eac}=\sqrt{{\left(\mathrm{Erms}\right)}^2-{\left(\mathrm{Edc}\right)}^2}\·\·\·\left(3\right)$

Component of voltage calculating apparatus 5, from the alternating voltage component Eac that calculates and the DC voltage component Edc of input, AC portion setting value and direct current component are set in high voltage output device 6, and produce Eac, produce Edc from ac high voltage generation circuit 61 respectively from dc high voltage generation circuit 62.Thus, from lead-out terminal 7 output Edc is added to output voltage the Eac, the virtual value of output voltage becomes the value that approaches Erms.

Embodiment three

Fig. 3 is the general block diagram of structure of the embodiment three of the explanation electric potential therapeutic apparatus relevant with the present invention.Present embodiment is characterised in that, be following embodiment: with microcomputer 12, realized the first voltage setting input device 2 shown in first and second embodiment, the second voltage setting input device 3 or 4 and component of voltage calculating apparatus 5 by operation display panel 11 and control.

In Fig. 3, electric potential therapeutic apparatus 1 possesses operation display panel 11, control microcomputer 12, high voltage output device 6, lead-out terminal 7.

Operation display panel 11 for example is arranged on the upper surface of electric potential therapeutic apparatus 1, is used for setting therapeutic process (course), treatment time intervalometer, active voltage, negative displacement or DC voltage etc. by the operator.

Operation display panel 11 possesses: process switch 81, input therapeutic process; Voltage switch 82 is imported the virtual value of output voltage; Balance cock (balance switch) 83 is imported the setting relevant with the size of the DC component of output voltage; Display part 84 shows the demonstration that is used to confirm setting content, residue treatment time, unusual content etc. when unusual; Beginning/shutdown switch 85, input treatment beginning/treatment stops; Buzzer switch 86, the input buzzer is set; Timer switch 87, the incoming timing device is set.

Being used for the virtual value of output voltage from the kind of the therapeutic process of process switch 81 input is that maximum carries out change pattern and specifies with the virtual value of setting, for example have: the A process, output voltage increases to the virtual value of setting at leisure, after its value kept certain hour, the virtual value of output voltage reduced at leisure; The B process, the virtual value of output voltage changes the virtual value that is increased to setting at leisure up and down; The C process: the virtual value of output voltage is that maximum changes randomly with the virtual value of setting; The D process: the virtual value of output voltage changes with certain pattern.When pressing process switch 81 at every turn, the process that is presented at display part 84 with A → B → C → D → A → ... change circularly, therefore, user is presented at display part 84 by pressing process switch 81 up to desirable process, thus assignment procedure.

Voltage switch 82 is following switches: for example, can be that unit sets seven grades (m=7) for 1000V from 3000V to 9000V with the voltage effective value of setting input.When pressing voltage switch 82 at every turn, the voltage effective value that is presented at display part 84 with 3000V → 4000V → 5000V → 6000V → 7000V → 8000V → 9000V → 3000V → ... change circularly, therefore, user is presented at display part 84 by pressing voltage switch 82 up to desirable voltage, thereby sets active voltage.

Balance cock 83 is switches of the input setting relevant with the size of DC voltage.The setting relevant with the size of DC voltage both can be set input by the negative displacement MS among the embodiment one, also can itself set input by the dc voltage value among the embodiment two.

For example, set with negative displacement MS under the situation of input from balance cock 83, for example can from-50% to-100%, carry out the setting input of six grades (n=6) with per 10%.When pressing balance cock 83 at every turn, the negative displacement MS that is presented at display part 84 with-50% →-60% →-70% →-80% →-90% →-100% →-50% → ... change circularly, therefore, user is presented at display part 84 by pressing balance cock 83 up to desirable negative displacement MS, thereby sets negative displacement MS.

In addition, set with dc voltage value under the situation of input from balance cock 83, for example, can be from-1000V to-8000V, to carry out setting input every eight grades (n=8) of 1000V.When pressing balance cock 83 at every turn, the dc voltage value that is presented at display part 84 with-1000V →-2000V →-3000V →-4000V →-5000V →-6000V →-7000V →-8000V →-1000V → ... change circularly, therefore, user is presented at display part 84 by pressing balance cock 83 up to desirable dc voltage value, thereby sets dc voltage value.

Beginning/shutdown switch 85 is that the output of indication high voltage output begins/export the switch that stops, when having set intervalometer, after beginning indication, exports through stopping automatically behind the setting-up time.

Buzzer switch 86 is following switches: when having passed through the intervalometer setting-up time, whether do to ring the selection appointment of buzzer.

Timer switch 87 is following switches: in order to stop output automatically behind setting-up time, carry out treatment time and set.For example, when pressing timer switch 87 at every turn, as continuously → 60 minute → 50 minutes → 40 minutes → 30 minutes → 20 minutes → 10 minutes → continuously ... like that, circularly display part 84 show continuous output mode, with assign to 10 fens intervalometers of six grades from intervalometer setting-up time (treatment time) 60 and set.User is presented at display part 84 by pressing timer switch 87 up to desirable treatment time or continuous mode, thereby sets.

Control possesses with microcomputer 12: panel interface portion 88, carry out input and output from operation display panel 11; Setting value maintaining part 89 keeps the value of being set by operation display panel 11; Component of voltage is calculated portion 90, calculates the alternating voltage component Eac and the DC voltage component Edc of output voltage; Process/intervalometer control part 91; AC portion setting value efferent 92; Direct current component setting value efferent 93.

In fact control be made of with the microprocessor of RAM, input/output interface the ROM, the work that possess CPU, storage program and control parameter with microcomputer 12, panel interface portion 88, setting value maintaining part 89, component of voltage are calculated portion 90, process/intervalometer control part 91, AC portion setting value efferent 92 and direct current component setting value efferent 93, realize by programme-control.

Panel interface portion 88 provides operation display panel 11 and the interface of control with the each several part of microcomputer 12.

Setting value maintaining part 89 keeps being set by operation display panel 11 the various setting values of input.

Component of voltage is calculated portion 90, according to setting input by operation display panel 11 and remaining on the effective voltage value Erms of setting value maintaining part 89 and negative displacement MS or dc voltage value Edc, the DC component Edc that calculates the AC compounent Eac of output voltage and calculate output voltage as required as the setting relevant with the size of DC voltage.

For this calculating, component of voltage is calculated portion 90 also can carry out formula (1) with embodiment 1 or embodiment 2 to the suitable calculation procedure of the calculating formula of (3), but in the present embodiment,, calculate AC compounent Eac and DC component Edc by reading the control table that is stored among the ROM.The detailed description of back narration control table.

Process/intervalometer control part 91 according to process kind and the intervalometer setting-up time set by process switch 81 and timer switch 87, is controlled and is made output voltage fluctuation or then stop output at the intervalometer setting-up time.

AC portion setting value efferent 92, output are used for component of voltage is calculated the setting value that alternating voltage component that portion 90 calculated outputs to high voltage output device 6.

Direct current component setting value efferent 93, output are used for component of voltage is calculated the setting value that DC voltage component that portion 90 calculated outputs to high voltage output device 6.

Then, the example that component of voltage is calculated the control table of portion 90 is described in detail.

Table 1 is to be used to calculate effective voltage value Erms is set at seven grades (m=7) from 3000V to 9000V, the example of control table of alternating voltage component Eac when negative displacement MS is set at from-50% to-100% six grades (n=6).In addition, magnitude of voltage is a unit with [kV], and MS is 0.5 (50%)～1.0 (100%).

Table 1

The computer chart of alternating voltage component Eac

MSErms	3	4	5	6	7	8	9
								0.5	3.0	4.0	5.0	6.0	7.0	8.0	9.0
0.6	2.9	3.8	4.8	5.8	6.7	7.7	8.7
								0.7	2.6	3.5	4.4	5.2	6.1	7.0	7.8
0.8	2.3	3.1	3.8	4.6	5.3	6.1	6.9
								0.9	2.0	2.6	3.3	4.0	4.6	5.3	6.0
1.0	1.7	2.3	2.9	3.5	4.0	4.6	5.2

Table 2 is to be used to calculate effective voltage value Erms is set at seven grades (m=7) from 3000V to 9000V, the example of control table of DC voltage component Edc when negative displacement MS is set at from-50% to-100% six grades (n=6).In addition, magnitude of voltage is a unit with [kV], and MS is 0.5 (50%)～1.0 (100%).

Table 2

The computer chart of DC voltage component Edc

MS/Erms	3	4	5	6	7	8	9
								0.5	0	0	0	0	0	0	0
0.6	0.8	1.1	1.4	1.6	1.9	2.2	2.4
								0.7	1.5	2.0	2.5	3.0	3.4	3.9	4.4
0.8	1.9	2.6	3.2	3.9	4.5	5.2	5.8
								0.9	2.2	3.0	3.7	4.5	5.2	6.0	6.7
1.0	2.4	3.3	4.1	4.9	5.7	6.5	7.3

Table 3 is to be used to calculate effective voltage value Erms is set at seven grades (m=7) from 3000V to 9000V, the example of control table of alternating voltage component Eac when dc voltage value Edc is set at eight grades (n=8) from-1000V to-8000V.In addition, magnitude of voltage is a unit with [kV].

Table 3

The computer chart of alternating voltage component Eac

Edc/Erms	3	4	5	6	7	8	9
								-1	2.8	3.9	4.9	5.9	6.9	7.9	8.9
-2	2.2	3.5	4.6	5.7	6.7	7.7	8.8
								-3	0	2.6	4.0	5.2	6.3	7.4	8.5
-4	-	0	3.0	4.5	5.7	6.9	8.1
								-5	-	-	0	3.3	4.9	6.2	7.5
-6	-	-	-	0	3.6	5.1	6.7
								-7	-	-	-	-	0	3.9	5.7
-8	-	-	-	-	-	0	4.1

Fig. 4 is the circuit diagram of the structure example of the high voltage output device 6 in the explanation present embodiment three.In Fig. 4, electric potential therapeutic apparatus 1 possesses: operation display panel 11; Control microcomputer 12; Transistor driver circuit 13,14 is controlled with microcomputer 12 by control; Output transistor 21,31 is driven respectively by transistor driver circuit 13,14; Diode 22,32 plays the effect as damper diode; Capacitor 23,33 plays the effect as resonating capacitor; High-tension transformer 24, the colelctor electrode of output transistor 21 are connected on winding 25; High resistance 63, an end and the lead-out terminal 7 of the Secondary Winding 26 of connection high-tension transformer 24; High-tension transformer 34, the colelctor electrode of output transistor 31 are connected on winding 35; Kenotron 37, negative electrode are connected the other end of Secondary Winding 36 of the high-tension transformer 34 of an end ground connection; Smoothing capacitor 46 is connected the anode of kenotron 37; Divider resistance 43,44 carries out feeding back to after the dividing potential drop control with microcomputer 12 to the voltage of lead-out terminal 7.

Control is with microcomputer 12, according to therapeutic process, treatment time, active voltage, negative displacement MS or the dc voltage value etc. set, to transistor driver circuit 13,14 output control signals.

Transistor driver circuit 13 is drive circuits that the base signal of transistor 21 is exported.Transistor 21 is transistors of output AC component waveform, figure 4 illustrates bipolar transistor, but also can make field-effect transistors (FET) or insulated gate bipolar transistor (IGBT).The colelctor electrode of transistor 21 is connected an end of a winding 25 of high-tension transformer 24, and the other end of a winding 25 is connected on the direct current 140V that is supplied with by not shown power circuit.

One end of the Secondary Winding 26 of high-tension transformer 24 is connected the anode of capacitor 46 and kenotron 37, and the other end is connected on the lead-out terminal 7 by high resistance 63.

Transistor driver circuit 14 is drive circuits that the base signal of transistor 31 is exported.Transistor 31 is the transistors that are used to generate DC voltage component, and is identical with transistor 21, also can use FET or IGBT.The colelctor electrode of transistor 31 is connected an end of a winding 35 of high-tension transformer 34, and the other end of a winding 35 is connected on the direct current 140V that is supplied with by not shown power circuit.

One end ground connection of the Secondary Winding 36 of high-tension transformer 34, the other end is connected the negative electrode of the kenotron 37 that is built in the transformator.The anode of kenotron 37 is connected an end of the Secondary Winding 26 of smoothing capacitor 46 and high-tension transformer 24.

In the present embodiment, carry out rectification by the voltage of the Secondary Winding 36 of 37 pairs of high-tension transformers 34 of kenotron, and undertaken smoothly by capacitor 46.Thus, there is not to produce on the electrode of ground connection the negative voltage of HVDC at capacitor 46.In this negative DC voltage, be superimposed with the Secondary Winding 26 caused alternating voltages of high-tension transformer 24, output on the lead-out terminal 7 by high resistance 63.

In addition, the high voltage that appears on the lead-out terminal 7 carries out dividing potential drop by divider resistance 43,44, is input to control microcomputer 12 by voltage after partial as feedback voltage.Control, is proofreaied and correct the voltage that outputs to transistor driver circuit 13,14 with reference to this feedback voltage with microcomputer 12, eliminates because the output voltage fluctuation that the user mode of electric potential therapeutic apparatus 1 causes.

Fig. 6 is the circuit diagram of the variation of the high voltage output device 6 among the explanation embodiment three.In Fig. 6, a winding 53 of first high-tension transformer 52 is driven by transistor bridge output circuit 80.Transistor bridge output circuit 80 is made of four transistors 71,72,73,74.The colelctor electrode of transistor 71,72 all is connected on the collector supply (140V).The emitter stage of transistor 71,72 is connected on the colelctor electrode of transistor 73,74.The emitter stage of transistor 73,74 is ground connection all.And, one end of a winding 53 of first high-tension transformer 52 is connected on the junction point of colelctor electrode of the emitter stage of transistor 71 and transistor 73, and the other end of a winding 53 of first high-tension transformer 52 is connected on the junction point of colelctor electrode of the emitter stage of transistor 72 and transistor 74.

Transistor 71 and 74, transistor 72 and 73 are pairedly respectively driven by transistor driver circuit 13.The alternating current of any size of mobile optional frequency in a winding 53 of first high-tension transformer 52.Thus, can in the Secondary Winding 54 of first high-tension transformer 52, obtain desirable ac high voltage.

On the other hand, identical with Fig. 4, be used to produce second high-tension transformer 34 of dc high voltage, its winding 35 is driven by transistor 31.One end ground connection of the Secondary Winding 36 of second high-tension transformer 34, the other end of Secondary Winding 36 is connected the negative electrode of kenotron 37.The anode of kenotron 37 is connected an end of capacitor 46, the other end ground connection of capacitor 46.Thus, the minus dc high voltage that is undertaken after the rectification by kenotron 37 is undertaken smoothly by capacitor 46.

In this minus dc high voltage, be superimposed with the ac high voltage of the Secondary Winding 54 that outputs to first high-tension transformer 52, output on the lead-out terminal 7 by high resistance 48.On this lead-out terminal 7, be connected with its voltage is carried out feeding back to the divider resistance 43,44 of control with microcomputer 12 after the dividing potential drop.

According to this variation, drive by 80 pairs first high-tension transformers 52 of transistor bridge output circuit that utilize transistor 71,72,73,74, therefore, on a winding 53 of first high-tension transformer 52, do not need central tap, can superpose after-applied to lead-out terminal 7 with desirable dc high voltage the ac high voltage of desirable frequency and desirable voltage.

Claims (6)

1. electric potential therapeutic apparatus is characterized in that possessing:

The first voltage setting input device, the setting of input voltage virtual value (Erms);

The second voltage setting input device is imported the setting relevant with the size of DC voltage;

The component of voltage calculating apparatus, according to setting by first and second voltage setting input device input, calculate the alternating voltage component (Eac) and the DC voltage component (Edc) of output voltage, make the virtual value of output voltage and the voltage effective value of importing by the first voltage setting input device (Erms) not have big difference; With

The high voltage output device will synthesize above-mentioned alternating voltage component (Eac) and above-mentioned DC voltage component (Edc) and the voltage that obtains, export as above-mentioned output voltage.

2. electric potential therapeutic apparatus according to claim 1 is characterized in that,

The second voltage setting input device is with the negative polarity peak value of synthetic waveform Peak-to-peak value with respect to alternating voltage component Eac

Ratio (negative displacement: MS), import as the setting relevant with the size of above-mentioned DC voltage.

3. electric potential therapeutic apparatus according to claim 2 is characterized in that,

Above-mentioned component of voltage calculating apparatus, will be made as Erms by the voltage effective value that the first voltage setting input device is set, in the time of will being made as MS by the above-mentioned negative displacement that the second voltage setting input device is set,

$\mathrm{Eac}=\sqrt{{\left(\mathrm{Erms}\right)}^2/(8{\×\mathrm{Ms}}^2-8\×\mathrm{MS}+3)}---\left(1\right)$

$\mathrm{Edc}=(2\mathrm{Eac}\×\mathrm{MS}-\mathrm{Eac})\×\sqrt{2}---\left(2\right)$

Calculate alternating voltage component Eac and DC voltage component Edc from formula (1) and (2).

4. electric potential therapeutic apparatus according to claim 1 is characterized in that,

The second voltage setting input device is exported DC voltage component (Edc) as the setting relevant with the size of above-mentioned DC voltage.

5. electric potential therapeutic apparatus according to claim 4 is characterized in that,

Above-mentioned component of voltage calculating apparatus, will be made as Erms by the voltage effective value that the first voltage setting input device is set, in the time of will being made as Edc by the dc voltage value that the second voltage setting input device is set,

$\mathrm{Eac}=\sqrt{{\left(\mathrm{Erms}\right)}^2-{\left(\mathrm{Edc}\right)}^2}---\left(3\right)$

Calculate alternating voltage component Eac by formula (3).

6. according to each described electric potential therapeutic apparatus of claim 1 to 5, it is characterized in that,

The first voltage setting input device is the setting device that can set the voltage effective value of m level, and wherein, m is the integer more than or equal to 2,

The second voltage setting input device is the setting device that can carry out the setting relevant with the size of the DC voltage of n level, and wherein, n is the integer more than or equal to 2,

Above-mentioned component of voltage calculating apparatus from having stored respectively the storage device of at least alternating voltage component (Eac) corresponding with the setting value of m * n group of first and second voltage setting input device in advance, is read alternating voltage component (Eac) at least.

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