CN2661112Y - High-frequency percussion wave high-voltage generator - Google Patents
High-frequency percussion wave high-voltage generator Download PDFInfo
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- CN2661112Y CN2661112Y CN 200320112920 CN200320112920U CN2661112Y CN 2661112 Y CN2661112 Y CN 2661112Y CN 200320112920 CN200320112920 CN 200320112920 CN 200320112920 U CN200320112920 U CN 200320112920U CN 2661112 Y CN2661112 Y CN 2661112Y
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Abstract
A high-frequency percussion wave high-voltage generator is provided and pertains to the medical instrument technology field, which is characterized in that the high-frequency high-voltage generating circuit is connected respectively with the starting control circuit, the trigger control circuit and the rectifier and filter circuit, while the high-frequency electronic trigger circuit is connected with the starting control circuit, the trigger control circuit and the rectifier and filter circuit. The benefit effects are as follows: the high-voltage boost, regulation and stabilization are combined with the high-voltage electronic trigger; constant current charging, successive adjustable voltage output and automatic voltage stabilization are highly reliable; electronic trigger is accurate; the small volume is good for assembling and transport; the distance of high-power transmission is short. The high-voltage generator can be directly assembled on the capacitance box; high-frequency high-voltage generation can be realized with input of commercial power.
Description
Technical field:
This utility model belongs to technical field of medical instruments.
Background technology:
In extracoporeal shock wave lithotripsy, piezoelectric type shock wave source, electrohydraulic type shock wave source, electromagnetic shock-wave source and laser type shock wave source.All be to utilize capacitance discharges generation shock wave in the high voltage power supply, the amplitude peak of high voltage power supply is between 7kV-25kV.Square being directly proportional of the energy of shock wave and electric power output voltage, supply voltage whether stablize the energy that influences shock wave, also directly influence the effect of lithotripsy in treatment.Most of high tension generators adopt traditional mode, promptly exchange pre-voltage stabilizing, pressure regulator, 50Hz power frequency isolated high-voltage booster transformer and output rectifying part and constitute.Because its output is bigger, whole system is relatively heavier, efficient is low, and because employing is the prime voltage stabilizing, the stablizing effect of output voltage is unsatisfactory, charging current can not be controlled.Its high-voltage discharging switch also adopts 50Hz power frequency isolated high-voltage booster transformer to trigger, and the triggered time inaccuracy triggers the transformator heaviness, volume is big, efficient is low.
Summary of the invention:
The purpose of this utility model provides the high-frequency percussion ripple high tension generator that the continuous scalable of a kind of output voltage, volume is little, efficient is high band high-frequency electronic trigger.
The technical solution of the utility model is:
This circuit block diagram is:
High-frequency and high-voltage generation circuit links to each other with start-up control circuit, trigger control circuit, current rectifying and wave filtering circuit respectively; The high-frequency electronic circuits for triggering link to each other with start-up control circuit, trigger control circuit, current rectifying and wave filtering circuit.
This circuit diagram is:
In high-frequency and high-voltage generation circuit, 7 feet of integrated circuit U3 connect 5 feet by resistance R 5,5 feet are by capacitor C 2 ground connection, 6 feet are by resistance R 6 ground connection, 8 feet are by capacitor C 3 ground connection, constitute oscillating circuit, transistor Q1, it is elementary that Q2 meets transformator T1, T1 level output of transformator is through diode D1, D2, capacitor C 4, the C5 voltage multiplying rectifier gets high pressure output VH, simultaneously, high pressure output is through sample resistance R1, R2 is connected with the positive input terminal of error amplifier U1, error amplifier U1 is provided with potentiometer P1 with voltage and links to each other, and the outfan of error amplifier U1 links to each other with the input of photoelectronic coupler U2, and another input of photoelectronic coupler U2 links to each other with ground through resistance R 3, the outfan of photoelectronic coupler U2 links to each other with 2 feet of U3, another outfan of electric coupling device U2 links to each other with ground, transistor Q1, the emitter stage of Q2 links to each other with 10 feet of U3 through resistance R 7 through resistance R 8 ground connection simultaneously;
In the start-up control circuit, start-up control end ST links to each other through the input of resistance R 9 with photoelectronic coupler U4, another input end grounding of U4, and the outfan of U4 connects 8 feet of U3 through diode D3, and this outfan connects 8 feet of integrated circuit U7 simultaneously through diode D4; In trigger control circuit, TI links to each other with photoelectronic coupler U5 input, another input of U5 links to each other with ground, the outfan of photoelectronic coupler U5 links to each other with 4 feet of integrated circuit U6, another output head grounding, 2 feet of U6 link to each other with 6 feet after capacitor C 6 ground connection, and 4 feet of U6 link to each other with 2 feet through resistance R 10.3 feet of U6 connect 10 feet of U3 by diode D5, and pass through resistance R 11 positive supplies, and 7 feet of U6 connect 8 feet of U7;
In the high-frequency electronic circuits for triggering, 7 feet of integrated circuit U7 connect 5 feet by resistance R 12,5 feet are by capacitor C 7 ground connection, and 6 feet are by resistance R 13 ground connection, and 8 feet are by capacitor C 8 ground connection, constitute oscillating circuit, transistor Q3, Q4 connect the elementary of transformator T2, and T2 level output of transformator is through two pipe D6, D7, and the output of capacitor C 9 multiplication of voltages obtains triggering output TO, the emitter stage of transistor Q3, Q4 links to each other with 10 feet of U7 through resistance R 14 through resistance R 15 ground connection simultaneously;
It is elementary that current rectifying and wave filtering circuit meets transformator T1, T2.
High-tension transformer T1 and high-tension transformer T2 all adopt the ring type magnetic core coiling to form.
The beneficial effects of the utility model are:
With high-powerly boost, adjust blood pressure, voltage stabilizing and great-power electronic trigger collection and be one; Constant-current charge, the continuous scalable of output voltage, automatic voltage regulation, the high reliability design; Accurately electronics triggers; Volume is little, be easy to install and transportation; The distance of high-voltage transmission is little, and this high tension generator can be directly installed on the capacitive, can directly produce high pressure and trigger voltage behind the input civil power.
Description of drawings:
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is a circuit diagram of the present utility model;
Wherein: R is that resistance, C are that electric capacity, D are that diode, Q are that transistor, T are that transformator, U are that integrated circuit, P are that potentiometer, B are rectifier bridges.
The specific embodiment:
Below in conjunction with accompanying drawing this utility model is described further:
The commercial power rectification filter circuit directly carries out rectification, filtering to the alternating current 220V civil power, obtains the DC voltage about 310V, uses for high-frequency and high-voltage generation circuit and high-frequency electronic circuits for triggering.High-pressure generating circuit transforms to required magnitude of voltage with the unidirectional current of 310V, and output high pressure VH charges to the high-voltage capacitor on the lithotrite after constant current control and voltage stabilizing control.The high-frequency electronic circuits for triggering produce trigger voltage TO, and this voltage makes air ionization produce electric arc, and the electric charge arc discharge on the lithotrite on the high-voltage capacitor produces shock wave.The sequential of trigger control circuit control high-pressure generating circuit and electronics circuits for triggering can not be worked high-frequency and high-voltage generation circuit and high-frequency electronic circuits for triggering simultaneously.The start-up control circuit is controlled the work of high-frequency and high-voltage generator and is stopped.
Commercial power rectification filtering is put in order by rectifier bridge B1 and filter capacitor C1 and is formed.1 pair of alternating current 220V civil power of rectifier bridge B1 and capacitor C directly carries out rectification, filtering, obtains the DC voltage about 310V, uses for high-frequency and high-voltage generation circuit and high-frequency electronic circuits for triggering.
High-frequency and high-voltage generation circuit is by integrated circuit U1, U2, U3, resistance R 1, R2, R3, R4, R5, R6, R7, R8, and potentiometer P1, capacitor C 2, C3, C4, C5, power transistor Q1, Q2, high-tension transformer T1 and diode D1, D2 form.Integrated circuit U3, resistance R 5, R6, capacitor C 3 produces the higher-order of oscillation, output driving power transistor Q1, the Q2 of vibration, transistor Q1, Q2 alternate conduction, the 310V DC voltage on the primary coil of high-tension transformer T1, produces the square-wave pulse of 310V through the power switch pipe alternating action on primary coil, the size of the square-wave voltage that produces on the secondary coil of T1 output Vo equals:
VO＝Vi·(n2/n1·τ/T)
Vi---input square wave pulse voltage value in the formula
τ--the width of-input square-wave pulse
The working cycle of T---input square-wave pulse ripple
N1 in the following formula and n2 are respectively the numbers of turn of the primary and secondary of high-tension transformer.Keeping under the constant condition of output pulse period T, the size of output voltage is only relevant with the product of input voltage Vi and pulse width τ, if the amplitude of input voltage remains unchanged, the regulating impulse width can change the value of output voltage, if the amplitude of input voltage changes, change pulse width, the product of Vi and τ is remained unchanged, then output voltage V o keeps constant.The secondary output of high-tension transformer T1 is through diode D1, D2, and the high voltage that arrives behind capacitor C 4, the C5 voltage multiplying rectifier is exported VH.The voltage that is provided with that the high voltage of output is provided with on the potentiometer P1 with voltage after sample resistance R1, R2 sampling is sent into error amplifier U1, and the U1 result amplified is regulated the width of its output pulse through the current potential of 9 feet of photoelectronic coupler U2 and R3, R4 control U3.When output voltage V H reaches the value of setting, U3 will continue the output burst pulse, so that the energy of high-frequency and high-voltage generator output just in time replenishes the consumption on commutation diode, electric capacity and the sample resistance in real time, and the maintenance output voltage stabilization also having been eliminated simultaneously charging and having stopped, risen the whistler that produces in the process and the fluctuation of output voltage.
When the output of high-frequency and high-voltage generation circuit is charged to high-voltage capacitance owing to adopt booster transformer, the output load capacitance reduced impedance to the electric capacity of primary of transformer be step-up ratio square times.When after each shock wave takes place, charging again, all will cause output near short-circuit condition, will make switching tube and rectifier tube overcurrent and damage, for the holding circuit element, pulse-width modulation circuit adopts one by one the Pulse Electric flow pattern to turn-off mode.During the switching tube conducting, the electric current of switching tube will rise by index, the time constant of its rising is relevant with the voltage on the load capacitance, when the voltage on the load capacitance is low, the time-derivative value of its electric current is big, rise time is short, the electric current of switching tube reaches the maximum of the setting of qualification very soon, this moment, the voltage that produces on current sampling resistor R8 was delivered to 10 feet of U3 through resistance R 7, and switching tube is turn-offed rapidly, therefore, when the voltage on output capacitance was low-voltage, the pulse width of U3 output depended on switching tube Q1, the conducting electric current of Q2 and the voltage of output capacitance, high-frequency and high-voltage generation circuit working is at current constant mode.When the voltage on the output capacitance rises to certain value, transistorized electric current will not reach maximum will be set, and transistor is operated under the maximum pulsewidth state, charge to output capacitance with the power of maximum.When the voltage on the output capacitance rose to setting value, the transistor pulsewidth narrowed down, and high-frequency and high-voltage generation circuit carries out voltage stabilizing to output voltage.
High-frequency and high-voltage generation circuit is subjected to the control of start-up control circuit and trigger control circuit, and when the negative electrode of diode D3 is the negative electrode of low level or D5 when being high level, the vibration output of U3 stops, and high-frequency and high-voltage generation circuit does not have high pressure output.When the negative electrode of diode D3 is high level, and D5 negative electrode low level, the vibration output services of U3, high-frequency and high-voltage generation circuit have high pressure output, and C3 makes the circuit soft start.
The high-frequency electronic circuits for triggering are by integrated circuit U7, resistance R 12, R13, R14, R15, and capacitor C 7, C8, C9, power transistor Q3, Q4, high-tension transformer T2 and diode D6, D7 form.Integrated circuit U7, resistance R 11, R12, capacitor C 7 produces the higher-order of oscillation, output driving power transistor Q3, the Q4 of vibration, transistor Q3, Q4 alternate conduction, the 310V DC voltage on the primary coil of high-tension transformer T2, produces the square-wave pulse of 310V through the power switch pipe alternating action on primary coil, the high-frequency and high-voltage that produces on secondary coil output.This output high pressure produces positive high-frequency impulse and triggers output TO through diode D6, D7 after the multiplication of voltage of capacitor C 9 is boosted.Trigger output and adopt at direct current and exchange the superposition mode, can be easy to reach the ionization voltage of air, the generation plasma-arc.Resistance R 14, R15 play overcurrent protection.
The high-frequency electronic circuits for triggering are subjected to the control of start-up control circuit and trigger control circuit, and when 7 feet of the negative electrode of diode D4 or U6 were low level, C8 was a low level, and the vibration output of U7 stops, the output of high-frequency electronic circuits for triggering triggerless.When 7 feet of the negative electrode B of diode D4 and U6 were high level, C8 was a high level, and the vibration output services of U7, electronics circuits for triggering have the output of triggering.
Trigger control circuit is by integrated circuit U5, U6, resistance R 10, R11, and capacitor C 6 diode D5 form.Integrated circuit U5, be used for electrical isolation, integrated circuit U6, resistance R 10, capacitor C 7 produce burst pulse, burst pulse is controlled U3 through 3 feet of U6 by D5H and R11, and the 7 feet output control U7 of U6 quits work high-pressure generating circuit, make circuits for triggering work simultaneously, after the burst pulse, high-pressure generating circuit is resumed work, and circuits for triggering are quit work.High-frequency electronic circuits for triggering and high-frequency and high-voltage generation circuit time-sharing work can reduce the input power of power supply, also power transistor are shielded simultaneously.
The start-up control circuit is made up of resistance R 9, photoelectronic coupler U4, diode D3, D4.When resistance R 9 adds high level, the U4 output low level, 8 feet of U3 and U7 are low level, high-pressure generating circuit and electronics circuits for triggering quit work; When resistance R 9 added low level, U4 exported high level, and 8 feet of U3 and U7 are high level, and high-pressure generating circuit and electronics circuits for triggering are started working.
High-tension transformer T1 and high-tension transformer T2 all adopt the ring type magnetic core coiling to form.This technology can realize the designing requirement of complanation, has also reduced electromagnetic interference simultaneously.Dwindle volume, reduced weight.
Claims (3)
1, a kind of high-frequency percussion ripple high tension generator is characterized in that:
High-frequency and high-voltage generation circuit links to each other with start-up control circuit, trigger control circuit, current rectifying and wave filtering circuit respectively; The high-frequency electronic circuits for triggering link to each other with start-up control circuit, trigger control circuit, current rectifying and wave filtering circuit.
2, a kind of high-frequency percussion ripple high tension generator according to claim 1 is characterized in that:
In high-frequency and high-voltage generation circuit, 7 feet of integrated circuit U3 connect 5 feet by resistance R 5,5 feet are by capacitor C 2 ground connection, 6 feet are by resistance R 6 ground connection, 8 feet are by capacitor C 3 ground connection, constitute oscillating circuit, transistor Q1, it is elementary that Q2 meets transformator T1, T1 level output of transformator is through diode D1, D2, capacitor C 4, the C5 voltage multiplying rectifier gets high pressure output VH, simultaneously, high pressure output is through sample resistance R1, R2 is connected with the positive input terminal of error amplifier U1, error amplifier U1 is provided with potentiometer P1 with voltage and links to each other, and the outfan of error amplifier U1 links to each other with the input of photoelectronic coupler U2, and another input of photoelectronic coupler U2 links to each other with ground through resistance R 3, the outfan of photoelectronic coupler U2 links to each other with 2 feet of U3, another outfan of electric coupling device U2 links to each other with ground, transistor Q1, the emitter stage of Q2 links to each other with 10 feet of U3 through resistance R 7 through resistance R 8 ground connection simultaneously;
In the start-up control circuit, start-up control end ST links to each other through the input of resistance R 9 with photoelectronic coupler U4, another input end grounding of U4, and the outfan of U4 connects 8 feet of U3 through diode D3, and this outfan connects 8 feet of integrated circuit U7 simultaneously through diode D4; In trigger control circuit, TI links to each other with photoelectronic coupler U5 input, another input of U5 links to each other with ground, the outfan of photoelectronic coupler U5 links to each other with 4 feet of integrated circuit U6, another output head grounding, 2 feet of U6 link to each other with 6 feet after capacitor C 6 ground connection, and 4 feet of U6 link to each other with 2 feet through resistance R 10.3 feet of U6 connect 10 feet of U3 by diode D5, and pass through resistance R 11 positive supplies, and 7 feet of U6 connect 8 feet of U7;
In the high-frequency electronic circuits for triggering, 7 feet of integrated circuit U7 connect 5 feet by resistance R 12,5 feet are by capacitor C 7 ground connection, and 6 feet are by resistance R 13 ground connection, and 8 feet are by capacitor C 8 ground connection, constitute oscillating circuit, transistor Q3, Q4 connect the elementary of transformator T2, and T2 level output of transformator is through two pipe D6, D7, and the output of capacitor C 9 multiplication of voltages obtains triggering output TO, the emitter stage of transistor Q3, Q4 links to each other with 10 feet of U7 through resistance R 14 through resistance R 15 ground connection simultaneously;
It is elementary that current rectifying and wave filtering circuit meets transformator T1, T2.
3, according to claim 1,2 described a kind of high-frequency percussion ripple high tension generators, it is characterized in that:
High-tension transformer T1 and high-tension transformer T2 all adopt the ring type magnetic core coiling to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320112920 CN2661112Y (en) | 2003-12-10 | 2003-12-10 | High-frequency percussion wave high-voltage generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320112920 CN2661112Y (en) | 2003-12-10 | 2003-12-10 | High-frequency percussion wave high-voltage generator |
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| Publication Number | Publication Date |
|---|---|
| CN2661112Y true CN2661112Y (en) | 2004-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200320112920 Expired - Fee Related CN2661112Y (en) | 2003-12-10 | 2003-12-10 | High-frequency percussion wave high-voltage generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062563A (en) * | 2014-06-24 | 2014-09-24 | 武汉大学 | High-voltage virtual experiment platform realization method and system |
| CN111388303A (en) * | 2020-04-21 | 2020-07-10 | 广州合舜医疗器械有限公司 | Shock wave therapeutic instrument circuit |
-
2003
- 2003-12-10 CN CN 200320112920 patent/CN2661112Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062563A (en) * | 2014-06-24 | 2014-09-24 | 武汉大学 | High-voltage virtual experiment platform realization method and system |
| CN111388303A (en) * | 2020-04-21 | 2020-07-10 | 广州合舜医疗器械有限公司 | Shock wave therapeutic instrument circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |