CN110247482A - Electromagnetic field generator - Google Patents
Electromagnetic field generator Download PDFInfo
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- CN110247482A CN110247482A CN201910537830.0A CN201910537830A CN110247482A CN 110247482 A CN110247482 A CN 110247482A CN 201910537830 A CN201910537830 A CN 201910537830A CN 110247482 A CN110247482 A CN 110247482A
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- electromagnetic field
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Magnetic Treatment Devices (AREA)
Abstract
The present invention relates to a kind of electromagnetic field generators, comprising: programmable power source, to output power signal；Resonance circuit is electrically connected with the programmable power source, is converted to electromagnetic energy for receiving the power signal, and by the power signal to form electromagnetic field, the resonance circuit includes main coil and switching capacity；Resonance detector module, for acquiring the resonance signal of the resonance circuit；Control module, for according to the Resonance detector module resonance signal collected, control the quantity of power signal that the programmable power source is exported and the switching capacity being incorporated into the resonance circuit, make resonance circuit work in resonant state, and then the electromagnetic field transfer efficiency highest for exporting resonance circuit, improving power source can be generated the upper limit of electromagnetic field intensity, while also can achieve specified electromagnetism intensity, reduce the power consumption of power source.
Description
Technical field
The present invention relates to electromagnetic arts, more particularly to a kind of electromagnetic field generator.
Background technique
Many active equipments, including but not limited to implanted active medical instrument (such as Implanted cardiac pacemaker, implanted
Artificial heart etc.), external medical instrument (such as external defibrillation instrument, ventilator etc.), mobile electronic product (such as mobile phone, smartwatch
Deng), vehicle-mounted product (such as vehicle-mounted middle control, navigator etc.), industrial equipment (such as frequency converter, communication module etc.) product need in forceful electric power
Magnetic field environment interference is lower to be worked normally.
Electromagnetic field generator produces alternating intense magnetic field and alternation high voltage electric field, is used to detecting instrument equipment to place ring
The electromagnetic susceptibility of electromagnetic interference present in border.And existing electromagnetic field generator, to realize institute in wider frequency section
Electric and magnetic fields test intensity needed for having frequency point, power source needs voltage to be offered relatively high, and then makes electromagnetic field
The power consumption of device is relatively very high.
Summary of the invention
Based on this, it is necessary to which, for the problems of above-mentioned existing electromagnetic field generator, providing one kind can be low
Power consumption realizes the electromagnetic field generator of the electric and magnetic fields testing requirement of wide-band.
A kind of electromagnetic field generator, comprising:
Programmable power source, to output power signal；
Resonance circuit is electrically connected with the programmable power source, for receiving the power signal, and by the power
Signal is converted into electromagnetic field, and the resonance circuit includes that main coil and at least one selectable in parallel with the main coil are opened
Powered-down appearance；
Resonance detector module is electrically connected, for adopting with the resonance circuit and the output end in the programmable power source
Collect the resonance signal of the resonance circuit；
Control module is electrically connected with the Resonance detector module and programmable power source, for being examined according to the resonance
Module resonance signal collected is surveyed, power signal and be incorporated into the resonance electricity that the programmable power source is exported are controlled
The quantity of switching capacity in road, so that the resonance circuit is in resonant state.
In a wherein preferred embodiment, the Resonance detector module includes:
The frequency meter and amplitude meter being electrically connected with the resonance circuit circuit, the control module pass through the frequency meter
And amplitude meter obtains the frequency and amplitude of the resonance circuit.
In a wherein preferred embodiment, the resonance circuit further includes be series at the programmable power source defeated
The current-limiting resistance of outlet.
In a wherein preferred embodiment, the Resonance detector module includes:
Phase discriminator is parallel to the current-limiting resistance, for detecting the phase difference of current-limiting resistance two sides voltage signal, institute
The feedback signal that control module obtains the phase discriminator is stated, and adjusts what the programmable power source was exported based on the feedback signal
Power signal and be incorporated into the resonance circuit switching capacity quantity.
In a wherein preferred embodiment, the Resonance detector module includes:
Current detecting unit is series at the side of the current-limiting resistance, to detect the output in the programmable power source
The current amplitude at end, the control module obtains the current amplitude of the current detecting unit, and adjusts institute according to current amplitude
State the quantity of power signal that programmable power source is exported and the switching capacity for being incorporated into the resonance circuit.
In a wherein preferred embodiment, the Resonance detector module includes:
Voltage detection unit is series at the side of the current-limiting resistance, to detect the voltage amplitude at the main coil both ends
Value, the control module obtains the voltage magnitude of the voltage detection unit, and can compile according to voltage magnitude adjusting
Power signal that journey power source is exported and be incorporated into the resonance circuit switching capacity quantity.
In a wherein preferred embodiment, the control module by digital interface and the Resonance detector module and
Programmable power source is electrically connected.
In a wherein preferred embodiment, the digital interface can for UART interface, IIC interface, SPI interface or
CAN interface.
In a wherein preferred embodiment, the control module includes MCU controller.
In a wherein preferred embodiment, the electromagnetic field generator further include:
Step-up coil is oppositely arranged with the main coil, generates high-voltage alternating electric field to cooperate with the main coil.
Electromagnetic field generator in present embodiment detects the resonance signal of resonance circuit, control by Resonance detector module
Molding root tuber controls programmable power source and switching capacity etc. according to the resonance signal of detection, makes the electricity of above-mentioned electromagnetic field generator
Signal works in resonant state always, reduces the reactive power of resonance circuit, improves the transfer efficiency of electromagnetic field, and then drop
The low power consumption of electromagnetic field generator.
Detailed description of the invention
Fig. 1 is the module diagram of the electromagnetic field generator of a preferred embodiment of the invention；
Fig. 2 is the electrical block diagram of the electromagnetic field generator of the first preferred embodiment of the invention；
Fig. 3 is the electrical block diagram of the electromagnetic field generator of the second preferred embodiment of the invention；
Fig. 4 is the electrical block diagram of the electromagnetic field generator of third preferred embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
In conjunction with shown in Fig. 1 and Fig. 2, the first preferred embodiment of the invention discloses a kind of electromagnetic field generator 100, should
Electromagnetic field generator 100 includes programmable power source 110, resonance circuit 120, Resonance detector module 130 and control module
140。
Specifically, above-mentioned programmable power source 110 is to output power signal.The power signal enters resonance by circuit
Circuit 120, to drive above-mentioned resonance circuit 120 to work.
Above-mentioned resonance circuit 120 is electrically connected with above-mentioned programmable power source 110, for receiving above-mentioned power signal, and
Above-mentioned power signal is converted into electromagnetic field.
In more detail, above-mentioned resonance circuit 120 include main coil 121 and it is selectable it is in parallel with the main coil at least
One switching capacity 122 may include multiple selectable switching capacities 122 for being incorporated to resonance circuit in the present embodiment, these
Switching capacity 122 is parallel with one another, and in parallel with above-mentioned main coil 121.
Above-mentioned Resonance detector module 130 and the output end of above-mentioned resonance circuit 120 and programmable power source 110 electrically connect
It connects, to acquire the resonance signal of the resonance circuit 120.
Above-mentioned Resonance detector module 130 includes frequency meter and amplitude meter, the frequency meter and amplitude meter and above-mentioned resonance circuit
120 main coil 121 is electrically connected, frequency of the frequency meter to resonance circuit 120, and above-mentioned amplitude meter is to detect resonance electricity
The amplitude on road 120.
In conjunction with shown in Fig. 1 and Fig. 2, in the first preferred embodiment of the invention, above-mentioned Resonance detector module 130 further includes limit
Leakage resistance 133 and phase discriminator 134, current-limiting resistance 133 are series at the output end in above-mentioned programmable power source 110, above-mentioned phase discriminator
134 is in parallel with above-mentioned current-limiting resistance 133, phase of the phase discriminator 134 to detect above-mentioned 133 two sides voltage signal of current-limiting resistance
Difference, above-mentioned control module 140 obtain the feedback signal of above-mentioned phase discriminator 134, and according to the feedback signal tune of the phase discriminator 134
Save the power signal and the switching capacity quantity for being incorporated into the resonance circuit that above-mentioned programmable power source 110 is exported.
When above-mentioned phase discriminator 134 detects the phase difference of above-mentioned 133 two sides voltage signal of current-limiting resistance, control module 140
The adjusting for the power signal that programmable power source 110 is exported is carried out, and adjusts the switch being incorporated into the resonance circuit 120
The quantity of capacitor 122, until resonance circuit is in when the phase difference of above-mentioned 134 detectable voltage signals of phase discriminator is in minimum
Resonant state, control module 140 stop adjusting.
Above-mentioned control module 140 is electrically connected with above-mentioned Resonance detector module 130 and programmable power source 110, to root
According to the Resonance detector module 130 resonance signal collected, the power signal that above-mentioned programmable power source 110 is exported is controlled
And the quantity for the switching capacity 122 being incorporated into above-mentioned resonance circuit 120 is controlled, so that the resonance circuit is in resonance shape
State.
Above-mentioned control module 140 can adjust the power signal and be incorporated into resonance circuit that programmable power source is exported
The quantity of switching capacity 122 in 120 makes resonance circuit work in resonant state, and then the electromagnetic field for exporting resonance circuit
Transfer efficiency highest, improving power source can be generated the upper limit of magnetic field strength.Also while can achieve specified electromagnetism intensity,
Reduce the power consumption of power source.
Above-mentioned control module 140 is electrical by digital interface and above-mentioned Resonance detector module 130 and programmable power source 120
Connection.Specifically, above-mentioned digital interface can be UART interface, IIC interface, SPI interface or CAN interface etc..Above-mentioned control mould
Block includes MCU controller.
In present embodiment, the electromagnetic field generator 100 further includes step-up coil 123, the step-up coil 123 with it is upper
It states main coil 121 to be oppositely arranged, generates high-voltage alternating electric field to cooperate with the main coil 121.Specifically, above-mentioned main coil
121 coil turn is lower than the coil turn of step-up coil 123, can generate high-voltage alternating electric field, in this way in order to reinforce main line
Magnetic coupling between circle 121 and step-up coil 123, the main coil 121 and step-up coil 123 can also include iron core, amorphous magnetic
The (not shown) such as ring, mutual inductor.In this way, to cooperate above-mentioned step-up coil 123 to can produce required for the electromagnetic field generator 100
Alternating electric field.
Electromagnetic field generator 100 in present embodiment by phase discriminator 134 in the Resonance detector module 130,
With the resonance signal of frequency meter and amplitude meter detection resonance circuit in the Resonance detector module, control module 140 is according to inspection
The power signal and be incorporated into resonance electricity that the resonance signal control programmable power source 110 for the Resonance detector module surveyed exports
The quantity of switching capacity in road 120 makes resonance circuit work in resonant state, and then the electromagnetic field for exporting resonance circuit turns
Efficiency highest is changed, improving power source can be generated the upper limit of magnetic field strength.Also while can achieve specified electromagnetic field intensity,
Reduce the power consumption of power source.
In conjunction with shown in Fig. 1 and Fig. 3, the second preferred embodiment of the invention discloses a kind of electromagnetic field generator 100, should
Electromagnetic field generator 100 includes programmable power source 110, resonance circuit 120, Resonance detector module 130 and control module
140。
Specifically, above-mentioned programmable power source 110 is to output power signal.The power signal enters resonance by circuit
Circuit 120, to drive above-mentioned resonance circuit 120 to work.
Above-mentioned resonance circuit 120 is electrically connected with above-mentioned programmable power source 110, for receiving above-mentioned power signal, and
By above-mentioned power signal conversion of electromagnetic field.
In more detail, above-mentioned resonance circuit 120 include main coil 121 and it is selectable it is in parallel with the main coil at least
One switching capacity 122 may include multiple selectable switching capacities 122 for being incorporated to resonance circuit 120 in the present embodiment,
These switching capacities 122 are parallel with one another, and in parallel with above-mentioned main coil 121.
Above-mentioned Resonance detector module 130 is electrically connected with above-mentioned resonance circuit 120 and the output end in programmable power source, is used
To acquire the resonance signal of the resonance circuit respectively.
Above-mentioned Resonance detector module 130 includes frequency meter and amplitude meter, the frequency meter and amplitude meter and above-mentioned resonance circuit
120 main coil 121 is electrically connected, frequency of the frequency meter to resonance circuit 120, and above-mentioned amplitude meter is to detect resonance electricity
The amplitude on road 120.
In present embodiment, above-mentioned resonance circuit 120 further includes current-limiting resistance 133, which is series at described
The output end in programmable power source 110.
Above-mentioned Resonance detector module 130 further includes current detecting unit 135, which is series at above-mentioned
The side of current-limiting resistance 133, to detect the current amplitude of above-mentioned output end, above-mentioned control module 140 obtains above-mentioned electric current inspection
The feedback signal of the current amplitude of unit is surveyed, and the programmable power source 110 is adjusted according to the feedback signal of the current amplitude
The quantity of the power signal exported and the switching capacity 122 being incorporated into resonance circuit 120.
In more detail, above-mentioned current detecting unit 135 can be the electric current for being series at the side of above-mentioned current-limiting resistance 133
Table.
When above-mentioned current detecting unit 135 detects the current amplitude of above-mentioned 133 side of current-limiting resistance, control module 140
The quantity of conditioned power signals and the switching capacity 122 being incorporated into resonance circuit 120, until above-mentioned current detecting unit 135
When current amplitude detected is in minimum, resonance circuit is in resonant state, and control module 140 stops adjusting.
Above-mentioned control module 140 is electrically connected with above-mentioned Resonance detector module 130 and programmable power source 110, to root
According to the Resonance detector module 130 resonance signal collected, the power signal that above-mentioned programmable power source 110 is exported is controlled
And the quantity of switching capacity 122 that control is incorporated into above-mentioned resonance circuit 120, make resonance circuit work in resonant state, into
And the electromagnetic field transfer efficiency highest for exporting resonance circuit, improve the upper limit that power source generates magnetic field strength.Also it can achieve
While specified electromagnetic field intensity, the power consumption of power source is reduced.
Above-mentioned control module 140 is electrical by digital interface and above-mentioned Resonance detector module 130 and programmable power source 120
Connection.Specifically, above-mentioned digital interface can be UART interface, IIC interface, SPI interface or CAN interface etc..Above-mentioned control mould
Block includes MCU controller.
In present embodiment, the electromagnetic field generator 100 further includes step-up coil 123, the step-up coil 123 with it is upper
It states main coil 121 to be oppositely arranged, generates high-voltage alternating electric field to cooperate with the main coil 121.Specifically, above-mentioned main coil
121 coil turn is lower than the coil turn of step-up coil 123, can generate high-voltage alternating electric field, in this way in order to reinforce main line
Magnetic coupling between circle 121 and step-up coil 123, the main coil 121 and step-up coil 123 can also include iron core, amorphous magnetic
The (not shown) such as ring, mutual inductor.In this way, to cooperate above-mentioned step-up coil 123 to can produce required for the electromagnetic field generator 100
Alternating electric field.
Electromagnetic field generator 100 in present embodiment by phase discriminator 134 in the Resonance detector module 130,
With the resonance signal of frequency meter and amplitude meter detection resonance circuit in the Resonance detector module, control module 140 is according to inspection
The power signal and be incorporated into resonance electricity that the resonance signal control programmable power source 110 for the Resonance detector module surveyed exports
The quantity of switching capacity in road 120 makes resonance circuit work in resonant state, and then the electromagnetic field for exporting resonance circuit turns
Efficiency highest is changed, improving power source can be generated the upper limit of magnetic field strength.Also while can achieve specified electromagnetic field intensity,
Reduce the power consumption of power source.
In conjunction with shown in Fig. 1 and Fig. 4, third preferred embodiment of the present invention discloses a kind of electromagnetic field generator 100, should
Electromagnetic field generator 100 includes programmable power source 110, resonance circuit 120, Resonance detector module 130 and control module
140。
Specifically, above-mentioned programmable power source 110 is to output power signal.The power signal enters resonance by circuit
Circuit 120, to drive above-mentioned resonance circuit 120 to work.
Above-mentioned resonance circuit 120 is electrically connected with above-mentioned programmable power source 110, for receiving above-mentioned power signal, and
Above-mentioned power signal is converted into electromagnetic field.
In more detail, above-mentioned resonance circuit 120 include main coil 121 and it is selectable it is in parallel with the main coil at least
One switching capacity 122 may include multiple selectable switching capacities 122 for being incorporated to resonance circuit in the present embodiment, these
Switching capacity 122 is parallel with one another, and in parallel with above-mentioned main coil 121.
Above-mentioned Resonance detector module 130 is electrically connected with above-mentioned resonance circuit 120 and the output end in programmable power source, point
Resonance signal not to acquire the resonance circuit.
Above-mentioned Resonance detector module 130 includes frequency meter and amplitude meter, the frequency meter and amplitude meter and above-mentioned resonance circuit
120 main coil 121 is electrically connected, frequency of the frequency meter to resonance circuit 120, and above-mentioned amplitude meter is to detect resonance electricity
The amplitude on road 120.
In present embodiment, above-mentioned resonance circuit 120 further includes current-limiting resistance 133, which is series at described
The output end in programmable power source 110, above-mentioned Resonance detector module 130 include voltage detection unit 136, the voltage detection unit
136 are series at the side of above-mentioned current-limiting resistance 133, to detect the voltage magnitude at above-mentioned main coil both ends, above-mentioned control module
140 obtain the feedback signal of the voltage magnitude of above-mentioned voltage detection unit 136, and are adjusted according to the feedback signal of the voltage magnitude
The quantity of power signal and the switching capacity 122 being incorporated into resonance circuit 120 that above-mentioned programmable power source is exported.
In more detail, above-mentioned Resonance detector module 130 can be the voltmeter for being series at the side of above-mentioned current-limiting resistance.Tool
Body, above-mentioned Resonance detector module 130 can be between current-limiting resistance and resonance circuit 120.
When above-mentioned voltage detection unit 136 detects the voltage magnitude of above-mentioned 133 side of current-limiting resistance, control module 140
The quantity of conditioned power signals and the switching capacity 122 being incorporated into resonance circuit 120, until above-mentioned voltage detection unit 136
When voltage magnitude detected is in maximum, resonance circuit is in resonant state, and control module 140 stops adjusting.
Above-mentioned control module 140 is electrically connected with above-mentioned Resonance detector module 130 and programmable power source 110, to root
According to the Resonance detector module 130 resonance signal collected, control power signal that above-mentioned programmable power source is exported and
It is incorporated into the quantity of the switching capacity 122 in resonance circuit 120, so that the resonance circuit is in resonant state.
Above-mentioned control module 140 can adjust the power signal and be incorporated into resonance circuit that programmable power source is exported
The quantity of switching capacity 122 in 120 makes resonance circuit work in resonant state, and then the electromagnetic field for exporting resonance circuit
Transfer efficiency highest, improving power source can be generated the upper limit of electromagnetic field intensity, also can achieve the same of specified electromagnetism intensity
When, reduce the power consumption of power source.
Above-mentioned control module 140 is electrical by digital interface and above-mentioned Resonance detector module 130 and programmable power source 120
Connection.Specifically, above-mentioned digital interface can be UART interface, IIC interface, SPI interface or CAN interface etc..Above-mentioned control mould
Block includes MCU controller.
In present embodiment, the electromagnetic field generator 100 further includes step-up coil 123, the step-up coil 123 with it is upper
It states main coil 121 to be oppositely arranged, generates high-voltage alternating electric field to cooperate with the main coil 121.Specifically, above-mentioned main coil
121 coil turn is lower than the coil turn of step-up coil 123, can generate high-voltage alternating electric field, in this way in order to reinforce main line
Magnetic coupling between circle 121 and step-up coil 123, the main coil 121 and step-up coil 123 can also include iron core, amorphous magnetic
The (not shown) such as ring, mutual inductor.In this way, the electromagnetic field generator 100, which cooperates above-mentioned step-up coil 123 to can reach, generates institute
The alternating electric field needed.
Electromagnetic field generator 100 in present embodiment by phase discriminator 134 in the Resonance detector module 130,
With the resonance signal of frequency meter and amplitude meter detection resonance circuit in the Resonance detector module, control module 140 is according to inspection
The power signal and be incorporated into resonance electricity that the resonance signal control programmable power source 110 for the Resonance detector module surveyed exports
The quantity of switching capacity in road 120 makes resonance circuit work in resonant state, and then the electromagnetic field for exporting resonance circuit turns
Efficiency highest is changed, improving power source can be generated the upper limit of magnetic field strength.Also while can achieve specified electromagnetic field intensity,
Reduce the power consumption of power source.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of electromagnetic field generator characterized by comprising
Programmable power source, to output power signal；
Resonance circuit is electrically connected with the programmable power source, for receiving the power signal, and by the power signal
Electromagnetic field is converted to, the resonance circuit includes main coil and selectable at least one switch electricity in parallel with the main coil
Hold；
Resonance detector module is electrically connected, for acquiring with the resonance circuit and the output end in the programmable power source
State the resonance signal of resonance circuit；
Control module is electrically connected with the Resonance detector module and programmable power source, for according to the Resonance detector mould
Block resonance signal collected controls power signal and be incorporated into the resonance circuit that the programmable power source is exported
Switching capacity quantity so that the resonance circuit is in resonant state.
2. electromagnetic field generator according to claim 1, which is characterized in that the Resonance detector module includes:
The frequency meter and amplitude meter being electrically connected with the resonance circuit, the control module pass through the frequency meter and amplitude meter
Obtain the frequency and amplitude of the resonance circuit.
3. electromagnetic field generator according to claim 1, which is characterized in that the resonance circuit further includes being series at institute
State the current-limiting resistance of the output end in programmable power source.
4. electromagnetic field generator according to claim 3, which is characterized in that the Resonance detector module includes:
Phase discriminator is parallel to the current-limiting resistance, for detecting the phase difference of current-limiting resistance two sides voltage signal, the control
Molding block obtains the feedback signal of the phase discriminator, and adjusts the power that the programmable power source is exported based on the feedback signal
Signal and be incorporated into the resonance circuit switching capacity quantity.
5. electromagnetic field generator according to claim 3, which is characterized in that the Resonance detector module includes:
Current detecting unit is series at the side of the current-limiting resistance, to detect the output end in the programmable power source
Current amplitude, the control module obtain the current amplitude of the current detecting unit, and according to the current amplitude, adjust institute
State the quantity of power signal that programmable power source is exported and the switching capacity for being incorporated into the resonance circuit.
6. electromagnetic field generator according to claim 3, which is characterized in that the Resonance detector module includes:
Voltage detection unit is series at the side of the current-limiting resistance, to detect the voltage magnitude at main coil both ends, the control
Molding block obtains the voltage magnitude of the voltage detection unit, and adjusts the programmable power source institute according to the voltage magnitude
The power signal of output and be incorporated into the resonance circuit switching capacity quantity.
7. electromagnetic field generator according to claim 1, which is characterized in that the control module by digital interface with
The Resonance detector module and programmable power source are electrically connected.
8. electromagnetic field generator according to claim 7, which is characterized in that the digital interface can connect for UART
Mouth, IIC interface, SPI interface or CAN interface.
9. electromagnetic field generator according to claim 1, which is characterized in that the control module includes MCU controller.
10. electromagnetic field generator according to claim 1, which is characterized in that the electromagnetic field generator further include:
Step-up coil is oppositely arranged with the main coil, generates high-voltage alternating electric field to cooperate with the main coil.
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| CN201910537830.0A CN110247482A (en) | 2019-06-20 | 2019-06-20 | Electromagnetic field generator |
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| CN201910537830.0A CN110247482A (en) | 2019-06-20 | 2019-06-20 | Electromagnetic field generator |
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