CN111790056A - Strong magnetic pulse output device based on silicon controlled rectifier and LC resonance - Google Patents
Strong magnetic pulse output device based on silicon controlled rectifier and LC resonance Download PDFInfo
- Publication number
- CN111790056A CN111790056A CN201910280118.7A CN201910280118A CN111790056A CN 111790056 A CN111790056 A CN 111790056A CN 201910280118 A CN201910280118 A CN 201910280118A CN 111790056 A CN111790056 A CN 111790056A
- Authority
- CN
- China
- Prior art keywords
- resonance
- magnetic field
- current
- output device
- pulse output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/02—Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Magnetic Treatment Devices (AREA)
Abstract
The invention provides a strong magnetic pulse output device based on silicon controlled rectifier and LC resonance, which comprises a discharge capacitor, a current-carrying magnetic field output coil, a rectifier diode, a silicon controlled rectifier, a control circuit and a protection circuit, wherein the discharge capacitor, the current-carrying magnetic field output coil, the rectifier diode and the silicon controlled rectifier form a current path, the discharge capacitor is connected with an external power supply and used for providing power for the current-carrying magnetic field output coil, the current-carrying magnetic field output coil is used for generating a magnetic field, the control circuit is arranged on the silicon controlled rectifier and used for regulating and controlling the output frequency of the strong magnetic pulse output device based on the silicon controlled rectifier and the LC resonance, the control circuit comprises a high-frequency choke coil connected with the silicon controlled rectifier and a control chip arranged on a circuit board, and the control chip is used for controlling the conduction and the closing of. The strong magnetic pulse output device based on the silicon controlled rectifier and the LC resonance can realize the dynamic regulation of the generated magnetic field.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a strong magnetic pulse output device based on silicon controlled rectifier and LC resonance.
Background
In the modern society, magnetic rehabilitation therapy equipment is gradually applied to the field of restoring higher brain functions, and according to the Faraday's law of electromagnetic induction, electrolyte in cells is equivalent to a weak conductor, and electromotive force is generated in a dynamically changed magnetic field to form bioelectricity, so that the bioelectricity is interfered in central nerves or peripheral nerves of the brain to achieve the purpose of treating brain cognitive dysfunction diseases such as language, memory, attention, vision and the like. How to modulate a dynamically changing magnetic field for treating neurological diseases deserves intensive research.
In the related art, the magnetic stimulator includes a stimulation coil and a control circuit, and the output voltage of the control circuit is consistent, so that the magnetic field generated by the stimulation coil is limited to an inherent constant magnetic field, and a great deal of experiments and data are lacked for the research of modulation therapy of a dynamic magnetic field.
Therefore, it is necessary to provide a strong magnetic pulse output device based on thyristor and LC resonance to solve the above problems.
Disclosure of Invention
The invention aims to provide a strong magnetic pulse output device based on silicon controlled rectifier and LC resonance, which is convenient to regulate and control, has a simple structure and can dynamically regulate a magnetic field.
In order to solve the technical problem, the invention provides a strong magnetic pulse output device based on silicon controlled rectifier and LC resonance, which comprises a discharge capacitor, a current-carrying magnetic field output coil, a rectifier diode, a silicon controlled rectifier, a control circuit and a protection circuit, the discharge capacitor, the current-carrying magnetic field output coil, the rectifier diode and the controlled silicon form a current path, the discharge capacitor is connected with an external power supply, for providing power supply for the current-carrying magnetic field output coil, the current-carrying magnetic field output coil is used for generating a magnetic field, the control circuit is arranged on the controllable silicon, used for regulating and controlling the output frequency of the strong magnetic pulse output device based on the controllable silicon and the LC resonance, the control circuit comprises a high-frequency choke coil connected with the controlled silicon and a control chip arranged on the circuit board, and the control chip is used for controlling the conduction and the closing of the current path.
Preferably, the protection circuit is provided with an absorption resistor and an absorption capacitor, and the absorption resistor and the absorption capacitor are arranged in series.
Preferably, the absorption capacitor is a non-inductive absorption capacitor, the capacitance value is 0.1 uF-1 uF, the withstand voltage value is 700-5000V, the resistance value of the absorption resistor is 1-8 omega, and the power is 50-200W.
Preferably, the conduction current of the controllable silicon is 100-3000A, and the withstand voltage value is 700-5000V.
Preferably, the conduction current of the rectifier diode is 100A-3000A, and the withstand voltage value of the capacitor is 700-5000V.
Preferably, the discharge capacitor is a nonpolar film capacitor or a super capacitor and is formed by connecting one or more capacitors in parallel, the total capacitance value of the discharge capacitor is 35 uF-210 uF, and the withstand voltage value is 700-5000V.
Preferably, the current-carrying magnetic field output coil is formed by winding a conductive wire, and the winding shape of the current-carrying magnetic field output coil is selected from 8-shaped, O-shaped, annular or spring-shaped.
Preferably, the material of the conductive wire is selected from copper, aluminum, silver, gold or an alloy.
Preferably, the control chip is selected from a CPLD, STM32, NXP or AT series single-chip microcomputer.
Compared with the prior art, the strong magnetic pulse output device based on the silicon controlled rectifier and the LC resonance forms an oscillator through the matching of the discharge capacitor and the current-carrying magnetic field output coil, and realizes the dynamic regulation of the output magnetic field of the current-carrying magnetic field output coil by configuring the capacitance value of the discharge capacitor and the inductance value of the current-carrying magnetic field output coil and controlling the opening and closing of the current path through the control circuit; and overvoltage can be avoided through the configuration of the protection circuit, and the service life of the controllable silicon is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic circuit diagram of a strong magnetic pulse output device based on SCR and LC resonance according to the present invention;
FIG. 2 is a schematic perspective view of a strong magnetic pulse output device based on SCR and LC resonance according to the present invention;
FIG. 3 (a) is a schematic diagram of a structure of the current-carrying magnetic field output coil shown in FIG. 1;
FIG. 3 (b) is a schematic diagram of another configuration of the current-carrying magnetic field output coil shown in FIG. 1;
FIG. 4 (a) is a graph showing the magnetic field distribution of a coil shaped like a figure 8;
fig. 4 (b) is a simulation diagram of the spatial distribution of the magnetic field of the figure-8 coil.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the present invention provides a strong magnetic pulse output device 100 based on thyristor and LC resonance, which includes a discharge capacitor 1, a current-carrying magnetic field output coil 2, a rectifier diode 3, a thyristor 4, a control circuit 5 and a protection circuit 6. The discharge capacitor 1, the current-carrying magnetic field output coil 2, the rectifier diode 3 and the controllable silicon 4 form a current path.
The discharging capacitor 1 is connected with an external power supply and used for storing electric quantity and adjusting current-carrying strength, and meanwhile, the electric quantity of the current-carrying magnetic field output coil 2 in backflow can be recovered, so that the electricity utilization efficiency is high. The discharge capacitor 1 and the carrier magnetic field output coil 2 also form an oscillator, and the frequency of the dynamic magnetic field generated by the carrier magnetic field output coil 2 can be calculated by an equivalent LC resonance circuit calculation formula.
The magnetic field output intensity of the strong magnetic pulse output device 100 based on the silicon controlled rectifier and the LC resonance is determined by the charging voltage U0Determining the charging voltage U0Is the output voltage of the external power supply.
Preferably, the discharge capacitor 1 is a nonpolar film capacitor or a super capacitor, and is formed by connecting one or more capacitors in parallel, the total capacitance value of the discharge capacitor 1 is 35 uF-210 uF, and the withstand voltage value of the capacitor is 700-5000V.
Referring to fig. 3, the current-carrying magnetic field output coil 2 generates a pulsed magnetic field after being energized, and can perform magnetic stimulation on the diseases of the meridians, the acupoints and the diseased regions of the human body, thereby achieving the effect of nerve rehabilitation therapy. Preferably, the current-carrying magnetic field output coil 2 is formed by winding a conductive wire, wherein the winding shape of the conductive wire is 8-shaped, O-shaped, annular or spring-shaped, and preferably, the conductive wire is made of copper, aluminum, silver, gold or alloy. Specifically, in this embodiment, the carrier magnetic field output coil 2 is integrally designed in an "8" shape, and 6 turns of 2 layers are wound to superimpose the output magnetic field, thereby increasing the physical therapy stimulation effect. A mathematical model of the spatial distribution of the magnetic field can be calculated by means of an equivalent helmholtz coil and pis's law. Referring to fig. 4 (a) and 4 (b), fig. 4 (a) is a graph of the magnetic field distribution of the 8-shaped coil; fig. 4 (b) is a simulation diagram of the spatial distribution of the magnetic field of the figure-8 coil.
The controllable silicon 4 is a high-power electrical component, is used as a high-power driving device, realizes the control of high-power equipment by using a low-power control, and has the advantages of small volume, high efficiency, long service life and the like. Control circuit 5 set up in on the silicon controlled rectifier 4, be used for regulation and control strong magnetic pulse output device 100's output frequency based on silicon controlled rectifier and LC resonance, control circuit 5 include with the high frequency choke 51 that silicon controlled rectifier 4 is connected with set up the control chip 52 on the circuit board, control chip 52 receives the pulse trigger signal that the outside sent to through filtering, the plastic of signal, then through control high frequency choke 51 realizes strong and weak electric isolation control.
Further, the conduction current of the thyristor 4 is 100A-3000A, and the withstand voltage value is 700-5000V, and in other embodiments, the conduction current and the withstand voltage value of the thyristor 4 may also be adjusted according to the actual situation, which is not limited in the present invention.
Specifically, in this embodiment, the thyristor 4 is a unidirectional thyristor, the high-frequency choke coil 51 is used as a control electrode of the thyristor 4, the high-frequency choke coil 51 is connected to the control chip 52, the control chip 52 controls the conduction of the current path by controlling the high-frequency choke coil 52 to input a pulse trigger signal to the thyristor 4, and since the output current of an equivalent ideal LC circuit is an alternating sinusoidal current, when the output current is in a forward state, the thyristor 4 is turned on, the circuit is turned on, and the current-carrying magnetic field output coil 2 generates a magnetic field; due to LC oscillation characteristics, when the output current becomes a negative state, the silicon controlled rectifier 4 is automatically closed, a negative current flows through the rectifier diode 3, and the current-carrying magnetic field output coil 2 outputs a standard magnetic field positive chord pulse. One said input pulse trigger signal, output a standard magnetic field chord pulse. By programming the control chip 52, the automatic operation of the scr and LC resonance based intense magnetic pulse output device 100 can be realized. Furthermore, the control circuit 5 has a simple structure and does not have the problem of reverse withstand voltage.
The protection circuit 6 is provided with an absorption resistor 61 and an absorption capacitor 62, and the absorption resistor 61 and the absorption capacitor 62 are arranged in series. It can be understood that, in the moment when the strong magnetic pulse output device 100 based on the silicon controlled rectifier and the LC resonance is turned on and turned off, the voltage in the current path is increased instantaneously, the protection circuit 6 is arranged to play an absorption role, the stress of the silicon controlled rectifier 4 can be effectively reduced, the silicon controlled rectifier 4 is prevented from being damaged, and the service life is prolonged. Specifically, the absorption resistor 61 is a resistor with a resistance value of 1-8 omega and a power of 50-200W, and the absorption capacitor 62 is a capacitor with a capacitance value of 0.1-1 uF and a withstand voltage value of 700-5000V. The types of the absorption resistor 61 and the absorption capacitor 62 can also be selected according to the requirement, which is not limited in the present invention.
Compared with the prior art, the strong magnetic pulse output device 100 based on the silicon controlled rectifier and the LC resonance forms an oscillator through the matching of the discharge capacitor 1 and the current-carrying magnetic field output coil 2, and realizes the dynamic adjustment of the output magnetic field of the current-carrying magnetic field output coil 2; the control circuit 5 can realize the automatic opening and closing of the circuit, and the protection circuit 6 can also avoid overvoltage, so that the service life of the controllable silicon 4 is prolonged.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (9)
1. A strong magnetic pulse output device based on silicon controlled rectifier and LC resonance is characterized by comprising a discharge capacitor, a current-carrying magnetic field output coil, a rectifier diode, a silicon controlled rectifier, a control circuit and a protection circuit, the discharge capacitor, the current-carrying magnetic field output coil, the rectifier diode and the controlled silicon form a current path, the discharge capacitor is connected with an external power supply, for providing power supply for the current-carrying magnetic field output coil, the current-carrying magnetic field output coil is used for generating a magnetic field, the control circuit is arranged on the controllable silicon, used for regulating and controlling the output frequency of the strong magnetic pulse output device based on the controllable silicon and the LC resonance, the control circuit comprises a high-frequency choke coil connected with the controlled silicon and a control chip arranged on the circuit board, and the control chip is used for controlling the conduction and the closing of the current path.
2. The thyristor and LC resonance-based strong magnetic pulse output device according to claim 1, wherein the protection circuit is provided with an absorption resistor and an absorption capacitor, and the absorption resistor and the absorption capacitor are arranged in series.
3. The strong magnetic pulse output device based on the controlled silicon and the LC resonance as claimed in claim 2, wherein the absorption capacitor is a non-inductive absorption capacitor, the capacitance value is 0.1uF to 1uF, the withstand voltage value is 700V to 5000V, the resistance value of the absorption resistor is 1 Ω to 8 Ω, and the power is 50W to 200W.
4. The strong magnetic pulse output device based on the controllable silicon and the LC resonance as claimed in claim 1, wherein the controllable silicon has a conduction current of 100A-3000A and a withstand voltage of 700-5000V.
5. The strong magnetic pulse output device based on the controlled silicon and the LC resonance as claimed in claim 1, wherein the conduction current of the rectifier diode is 100A-3000A, and the withstand voltage value is 700-5000V.
6. The strong magnetic pulse output device based on the controlled silicon and the LC resonance as claimed in claim 1, wherein the discharge capacitor is a non-polar thin film capacitor or a super capacitor, and is formed by connecting one or more capacitors in parallel, the total capacitance value of the discharge capacitor is 35-210 uF, and the withstand voltage value of the capacitor is 700-5000V.
7. The strong magnetic pulse output device based on the thyristor and the LC resonance as recited in claim 1, wherein the current-carrying magnetic field output coil is made of a conductive wire and is wound in a shape selected from a group consisting of a figure 8 shape, an O shape, a ring shape and a spring shape.
8. The thyristor and LC resonance-based strong magnetic pulse output device according to claim 7, wherein the conductive wire is made of a material selected from copper, aluminum, silver, gold, or an alloy.
9. The strong magnetic pulse output device based on the controllable silicon and the LC resonance as claimed in claim 1, wherein the control chip is selected from a CPLD, STM32, NXP or AT series single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910280118.7A CN111790056A (en) | 2019-04-09 | 2019-04-09 | Strong magnetic pulse output device based on silicon controlled rectifier and LC resonance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910280118.7A CN111790056A (en) | 2019-04-09 | 2019-04-09 | Strong magnetic pulse output device based on silicon controlled rectifier and LC resonance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111790056A true CN111790056A (en) | 2020-10-20 |
Family
ID=72805207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910280118.7A Pending CN111790056A (en) | 2019-04-09 | 2019-04-09 | Strong magnetic pulse output device based on silicon controlled rectifier and LC resonance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111790056A (en) |
-
2019
- 2019-04-09 CN CN201910280118.7A patent/CN111790056A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10173071B2 (en) | Medical successive magnetic pulse generation device | |
| KR100547265B1 (en) | Apparatus and method for creating pulse magnetic stimulation having modulation function | |
| US20090018384A1 (en) | Portable, Modular Transcranial Magnetic Stimulation Device | |
| US11666774B2 (en) | Pulse source and method for magnetically inductive nerve stimulation | |
| CN101234233A (en) | Transcranial magnetic field stimulator stimulus strength modulating method and device therefor | |
| JP2015506781A (en) | Power architecture for implantable medical devices with non-rechargeable batteries | |
| US20170100599A1 (en) | Electronic medical system with implantable medical device, having wireless power supply transfer | |
| KR860001942B1 (en) | Electromagnetotherapeutic apparatus | |
| JP2016536070A (en) | Orientation and placement of inductive components to minimize noise coupling to the communication coil of an implantable medical device | |
| US8157718B2 (en) | Electric circuit, having transformer which can function as a buffer inductor, and magnetic stimulator therewith | |
| US20190167989A1 (en) | Integrated circuit design for wireless control of biphasic stimulation in bioelectronic implant | |
| ul Hassan et al. | A robust multioutput self-regulated rectifier for wirelessly powered biomedical applications | |
| CN101827630A (en) | Biomedical electro-stimulator | |
| KR100457104B1 (en) | Magnetic stimulator generating stimulating pulses without dc power supply | |
| CN209933833U (en) | Strong magnetic pulse output device based on silicon controlled rectifier and LC resonance | |
| CN105896984B (en) | Boost circuit and DC-DC module, stimulation circuit and implantable medical devices | |
| CN111790056A (en) | Strong magnetic pulse output device based on silicon controlled rectifier and LC resonance | |
| CN106451626B (en) | Wireless charging device of implanted electronic stimulator | |
| KR200428468Y1 (en) | Crossing High-Amplitude Magneto-Therapy device | |
| US20110313234A1 (en) | Electromagnetic stimulation device and method thereof | |
| CN108365683B (en) | Wireless energy transmission structure based on current source | |
| KR100846093B1 (en) | Coil-Probe for a magnetic curer that can regulate a magnetic pulse output | |
| JP6138306B1 (en) | Magnetic therapy device | |
| CN209933832U (en) | Efficient boosting device based on transcranial magnetic stimulation therapeutic apparatus | |
| KR102557821B1 (en) | Switched capacitor-based electrical stimulation device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201020 |