CN208110426U - A kind of radio frequency high tension output amplitude automatic control system - Google Patents
A kind of radio frequency high tension output amplitude automatic control system Download PDFInfo
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- CN208110426U CN208110426U CN201820734242.7U CN201820734242U CN208110426U CN 208110426 U CN208110426 U CN 208110426U CN 201820734242 U CN201820734242 U CN 201820734242U CN 208110426 U CN208110426 U CN 208110426U
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Abstract
The utility model discloses a kind of radio frequency high tension output amplitude automatic control systems, including industrial personal computer, digital radio signal, and module, radio frequency high tension resonance circuit, radio-frequency current detection circuit, radio-frequency voltage detection circuit, resonance step-up current detection circuit and oscillograph board occurs；Module occurs for industrial personal computer, digital radio signal and radio frequency high tension resonance circuit is sequentially connected；Radio frequency high tension resonance circuit output end connects radio-frequency current detection circuit and radio-frequency voltage detection circuit, radio-frequency current detection circuit connects oscillograph board with radio-frequency voltage detection circuit, and the current value and voltage value of radio frequency high tension resonance circuit output signal are measured by oscillograph board；Oscillograph board connects industrial personal computer, and industrial personal computer reads the current value and voltage value for the radio frequency high tension resonance circuit output signal that oscillograph board is measured.The utility model is available to arrive arbitrary output voltage, has the advantages that output voltage amplitude stability is high, voltage accuracy is high, pressure stabilizing response is fast and strong antijamming capability.
Description
Technical field
The utility model relates to a kind of radio frequency arts, in particular to a kind of radio frequency high tension output amplitude automatically controls system
System.
Background technique
The field of current radio-frequency technique application is more and more extensive, and the type of radio frequency connector and connector is also more and more,
But to the approximate blank of the test of " high-potential voltage of resistance to radio frequency " of these connectors and connector.Radio frequency high tension hot side
The development for trying equipment becomes urgent need, but after radio frequency high tension generation, carries out automatically controlling to its voltage amplitude, is to solve
The unstable important measures of voltage amplitude in " high-potential voltage of resistance to radio frequency " test.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts and deficiency, provide a kind of radio frequency high tension output amplitude
Automatic control system arrives arbitrary output voltage by the way that the system is available, has output voltage amplitude stability height, voltage
The advantages of precision is high, pressure stabilizing response is fast and strong antijamming capability, the voltage suitable for radio frequency high tension controls.
The purpose of this utility model is achieved through the following technical solutions：A kind of radio frequency high tension output amplitude automatic control system
Module, radio frequency high tension resonance circuit, radio-frequency current detection circuit, resonance step-up occur for system, including industrial personal computer, digital radio signal
Current detection circuit, radio-frequency voltage detection circuit and oscillograph board；
Module occurs for the industrial personal computer connection digital radio signal, and module output radio frequency letter occurs for control digital radio signal
Number frequency and amplitude；
The digital radio signal occurs module by signal output end and connects radio frequency high tension resonance circuit；
The output end of the radio frequency high tension resonance circuit connects radio-frequency current detection circuit, passes through radio-frequency current detection circuit
Get the current signal of radio frequency high tension resonance circuit output；
The connection resonance step-up current detection circuit of radio frequency high tension resonance circuit, is obtained by resonance step-up current detection circuit
Take the resonance step-up current detection signal of radio frequency high tension resonance circuit；
The output end of the radio frequency high tension resonance circuit connects radio-frequency voltage detection circuit, passes through radio-frequency voltage detection circuit
Get the voltage signal of radio frequency high tension resonance circuit output；
The radio-frequency current detection circuit, radio-frequency voltage detection circuit and resonance boost current detection circuit are separately connected and show
Wave device board, the current signal and voltage signal and radio frequency high tension resonance electricity of the radio frequency high tension resonance circuit output that will test
The resonance step-up current detection signal on road, which is respectively transmitted, gives wave device board, measures radio frequency high tension resonance electricity by oscillograph board
The current value and voltage value of road output signal and the working current value of radio frequency high tension resonance circuit；
The oscillograph board connects industrial personal computer, and it is defeated that industrial personal computer reads the radio frequency high tension resonance circuit that oscilloscope measurement goes out
The current value and voltage value of signal out.
Preferably, the radio frequency high tension resonance circuit includes the first power amplifier tube V1, first order input biasing networks, the
Level-one exports biasing networks, the second power amplifier tube V2, second level input biasing networks and export resonance boost network；Wherein：
The grid of first power amplifier tube V1 connects input resistant matching network, is arrived by input resistant matching network connection
Module by signal output end occurs for digital radio signal, and the grid of the first power amplifier tube V1 inputs biasing net by the first order
Network connects power supply, and the drain electrode of the first power amplifier tube V1 exports biasing networks by the first order and connects power supply, the first power amplification
The drain electrode of pipe V1 connects the grid of the first power amplifier tube V1, the source electrode of the first power amplifier tube V1 by first order feedback network
Ground connection；The drain electrode of the first power amplifier tube V1 connects the grid of the second power amplifier tube V2 by blocking condenser；
The grid of second power amplifier tube V2 inputs biasing networks by the second level and connects power supply, the second power amplifier tube V2
Drain electrode connect export resonance boost network input terminal, the drain electrode of the second power amplifier tube V2 connected by second level feedback network
The grid of second power amplifier tube V2.
Further, the input resistant matching network includes the first transformer T1, resistance R1, capacitor C10 and capacitor
Module by signal output end occurs for the primary Same Name of Ends connection digital radio signal of C11, the first transformer T1, and described first becomes
The primary different name end of depressor T1 is grounded, after the secondary Same Name of Ends of the first transformer T1 is sequentially connected resistance R1 and capacitor C11
Connect the grid of the first power amplifier tube V1；It is grounded after the secondary Same Name of Ends connection capacitor C10 of the first transformer T1, it is described
The secondary different name end of first transformer T1 is grounded.
Further, the first order input biasing networks include inductance L4, capacitor C9, resistance R2, resistance R3, resistance
R4 and potentiometer SR1；Wherein, one end of inductance L4 connects power supply, as the input terminal of first order input biasing networks, inductance L4
The other end be separately connected one end of capacitor C9, resistance R2 and resistance R3；The other end of capacitor C9 is grounded, resistance R2 and resistance R3
The other end grid of the first power amplifier tube V1 is connected and is all connected with one end of resistance R4, as the first order input bias
The output end of network；The other end of resistance R4 is grounded, and the resistor body both ends of potentiometer SR1 are connected respectively the two of resistance R4
End, the sliding end ground connection of potentiometer SR1；
First order output biasing networks include inductance L1, inductance L2, capacitor C5, capacitor C6, capacitor C7 and capacitor C8,
Wherein one end of inductance L2 connects the drain electrode of the first power amplifier tube V1, as the output end of first order output biasing networks, electricity
Feel one end of the other end connection inductance L1 of L2, the other end of inductance L1 connects power supply, as first order output biasing networks
Input terminal；Wherein inductance L2 connects one end with inductance L1 by capacitor C7 and capacitor C8 ground connection in parallel, and inductance L1 and power supply connect
The one end connect is by capacitor C6 and capacitor C5 ground connection in parallel, and wherein capacitor C6 and capacitor C7 is polarity free capacitor, capacitor C5 and
Capacitor C8 is electrolytic capacitor.
Further, the second level input biasing networks include inductance L5, resistance R6, resistance R7 and resistance R8；Its
In, a termination power of inductance L5, the input terminal as second level input biasing networks；The other end of inductance L5 passes through parallel connection
Resistance R6 connects one end of resistance R8 with resistance R7, and wherein resistance R6 and resistance R7 connect the second power with one end of resistance R8 and puts
The grid of big pipe V2, the output end as second level input biasing networks.
Further, the export resonance boost network includes the second transformer T2, wherein the second transformer T2's is first
Grade different name end connects the drain electrode of the second power amplifier tube V2, and the primary Same Name of Ends of the second transformer T2 connects the defeated of current detector
Outlet, load are connected between the secondary Same Name of Ends of the second transformer T2 and secondary different name end.
Further, state resonance step-up current detection circuit include current detecting chip D1, inductance L3, resistance R10 and
Resistance R11, wherein one end of inductance L3 connects export resonance boost network, and the other end of inductance L3 connects current detecting chip D1
Current output terminal, the current input terminal of current detecting chip D1 connects the second DC power supply, the electric current of current detecting chip D1
Detection signal output end is grounded after being sequentially connected resistance R11 and resistance R10, and one end that resistance R11 is connected with resistance R10 is as humorous
The current detecting end for boost current detection circuit of shaking connects oscillograph board, while one end that resistance R10 is connected with resistance R11 is logical
Cross capacitor C17 ground connection.
Further, the radio frequency high tension resonance circuit further includes the first DC power supply and voltage regulator circuit；Voltage regulator circuit
Power input connect the first DC power supply；
The grid of the first power amplifier tube V1 inputs biasing networks by the first order and connects circuit output end of pressure-stabilizing；
The grid of the second power amplifier tube V2 inputs biasing networks by the second level and connects circuit output end of pressure-stabilizing；
The drain electrode of the first power amplifier tube V1 exports biasing networks by the first order and connects the first DC power supply.
Further, the first order feedback network includes concatenated resistance R5 and capacitor C12；The second level feedback
Network includes concatenated resistance R9 and capacitor C14.
Preferably, the industrial personal computer is provided with the radio frequency high tension resonance circuit output measured for showing oscillograph board
The user interface of the working current value of the current value and voltage value and radio frequency high tension resonance circuit of signal, in the user interface
The parameter that frequency and amplitude that module exports radiofrequency signal occurs including RF output voltage amplitude and digital radio signal is set
Set window.
The utility model has the following advantages compared with the existing technology and effect：
(1) the utility model radio frequency high tension output amplitude automatic control system includes that sequentially connected industrial personal computer, number are penetrated
Frequency signal generating module and radio frequency high tension resonance circuit, wherein radio frequency high tension resonance circuit detects electricity by radio-frequency current respectively
Road, radio-frequency voltage detection circuit and resonance boost current detection circuit connect oscillograph board, the connection control industry control of oscillograph board
Machine；Wherein, industrial personal computer sets RF output voltage amplitude set value；It is humorous that radiofrequency signal enters the progress of radio frequency high tension resonance circuit
Load is output to after vibration enhanced processing；Radio-frequency current detection circuit, radio-frequency voltage detection circuit and resonance boost current detection electricity
Current detection signal, voltage detection signal and the resonance step-up current detecting letter that road respectively exports radio frequency high tension resonance circuit
Number be sent to oscillograph board, by oscillograph board measure radio frequency high tension resonance circuit output signal voltage value and current value with
And the working current value of radio frequency high tension resonance circuit；The radio frequency high tension resonance circuit that industrial personal computer measures oscillograph board exports
Signal voltage value and RF output voltage amplitude set value are compared, and adjust digital radio signal according to comparison result and mould occurs
Block exports the amplitude of radiofrequency signal, has achieved the purpose that radio frequency high tension resonance circuit output amplitude automatically controls.In addition industrial personal computer
The current threshold of the radio frequency high tension resonance circuit output signal current value that oscillograph board measures and setting is compared, with
Carry out the flow monitoring of crossing of whole system, while the work electricity of the industrial personal computer radio frequency high tension resonance circuit that measures oscillograph board
Flow valuve and the operating current threshold value of setting compare, to carry out the flow monitoring excessively of radio frequency high tension resonance circuit.The utility model
The setting that module exports radio frequency signal amplitude is occurred to digital radio signal by industrial personal computer, radio frequency high tension resonance can be made electric
Road exports arbitrary voltage, and there is high output voltage amplitude stability, voltage accuracy height, pressure stabilizing to respond fast and anti-interference ability
Strong advantage, the voltage suitable for radio frequency high tension control.
(2) in the utility model radio frequency high tension output amplitude automatic control system, radio frequency high tension resonance circuit includes first
Power amplifier tube V1, first order input biasing networks, first order output biasing networks, the second power amplifier tube V2, the second level are defeated
Enter biasing networks and export resonance boost network；In the present invention, the grid of the first power amplifier tube V1 connected
Level-one inputs biasing networks and for it provides bias voltage, the connected between the first power amplifier tube V1 and its drain and gate
First order feed-back network constitutes first order power amplification circuit；Blocking coupled capacitor connects between first order power amplification circuit passes through grade
The second power amplifier tube V2 is met, by the second power amplifier tube V2 connection export resonance boosting network, wherein setting is humorous in the second level
The first order power amplification circuit for circuit front-end of shaking constitutes second level resonance circuit by export resonance boosting network and load and mentions
For enough driving resonant radio frequency signals.In the utility model, the radiofrequency signal that module output occurs for digital radio signal is passed through
Input resistant matching network passes to the first power amplifier tube V1 progress power amplification after carrying out impedance matching, by blocking coupling between grade
It closes capacitor and passes to the second power amplifier tube V2, from transformer after the second power amplifier tube V2 and transformer T2 carries out voltage resonance
T2 grade exports radio frequency high tension signal, and the output signal frequency that module occurs for adjusting digital radio signal can search out optimal humorous
Vibration frequency point, it is defeated when continuously adjusting the output amplitude of digital radio signal generation module output signal on resonant frequency point
The amplitude of the radio frequency high tension signal of resonance step-up network resonance output can also follow its consecutive variations out；As it can be seen that the utility model
It is continuously adjustable that radio frequency high tension output amplitude automatic control system can be realized voltage；Other traditional circuits compared to the prior art,
It is high that Tthe utility model system also has the advantages that output waveform is distorted small and circuit stability, is suitable for radio frequency connector and company
Pressure test is tested under fitting radiofrequency signal.
(3) in the radio frequency high tension resonance circuit of the utility model radio frequency high tension output amplitude automatic control system, setting exists
First order feedback network and setting between first power amplifier tube V1 grid and drain electrode is in the second power amplifier tube V2 grid
Second level feedback network between drain electrode can be improved the utility model radio frequency high tension resonance circuit full frequency band working frequency
Stability.In addition, setting export resonance boost network connects resonance step-up current detection circuit in radio frequency high tension resonance circuit
Output end carries out size of current detection by resonance step-up current detection circuit.Resonance step-up current detection circuit can be real-time
The operating current for detecting export resonance boost network, the resonance circuit for preventing export resonance boost network to be constituted is because of electric current mistake
The the second power amplifier tube damage for causing export resonance boost network to be connected greatly.
(4) in the utility model radio frequency high tension output amplitude automatic control system, industrial personal computer is provided with user interface, wherein
User interface includes parameter setting window, and user can be to RF output voltage amplitude and digital radio signal by the window
The frequency and amplitude that module output radiofrequency signal occurs carry out any setting, therefore the utility model can be controlled very easily
The amplitude of output signal.In addition, industrial personal computer user interface can show the current value and voltage value that oscillograph board measures, side
Just user carries out real time inspection.
Detailed description of the invention
Fig. 1 is Tthe utility model system structural block diagram.
Fig. 2 is the structural block diagram of radio frequency high tension resonance circuit in Tthe utility model system.
Fig. 3 is the circuit diagram of radio frequency high tension resonance circuit in Tthe utility model system.
Specific embodiment
The present invention will be further described in detail with reference to the embodiments and the accompanying drawings, but the implementation of the utility model
Mode is without being limited thereto.
Embodiment
Present embodiment discloses a kind of radio frequency high tension output amplitude automatic control systems, as shown in Figure 1, include industrial personal computer,
Digital radio signal occur module, radio frequency high tension resonance circuit, radio-frequency current detection circuit, resonance step-up current detection circuit,
Radio-frequency voltage detection circuit and oscillograph board；
Industrial personal computer connects digital radio signal and module occurs, and module output radiofrequency signal occurs for control digital radio signal
Frequency and amplitude；
Digital radio signal occurs module by signal output end and connects radio frequency high tension resonance circuit；
The output end of radio frequency high tension resonance circuit connects radio-frequency current detection circuit, is obtained by radio-frequency current detection circuit
The current signal exported to radio frequency high tension resonance circuit；
The connection resonance step-up current detection circuit of radio frequency high tension resonance circuit, is obtained by resonance step-up current detection circuit
Take the resonance step-up current detection signal of radio frequency high tension resonance circuit；
The output end of radio frequency high tension resonance circuit connects radio-frequency voltage detection circuit, is obtained by radio-frequency voltage detection circuit
The voltage signal exported to radio frequency high tension resonance circuit；
The radio-frequency current detection circuit, radio-frequency voltage detection circuit and resonance boost current detection circuit are separately connected and show
Wave device board, the current signal and voltage signal and radio frequency high tension resonance electricity of the radio frequency high tension resonance circuit output that will test
The resonance step-up current detection signal on road, which is respectively transmitted, gives oscillograph board, measures radio frequency high tension resonance by oscillograph board
The current value and voltage value of circuit output signal and the working current value of radio frequency high tension resonance circuit；
The oscillograph board connects industrial personal computer, and industrial personal computer reads the radio frequency high tension resonance circuit that oscillograph board is measured
The current value and voltage value of output signal and the working current value of radio frequency high tension resonance circuit.Industrial personal computer surveys oscillograph board
The radio frequency high tension resonance circuit output signal voltage value and RF output voltage amplitude set value measured are compared, according to comparing
As a result the amplitude of module output radiofrequency signal occurs for adjustment digital radio signal, has reached radio frequency high tension resonance circuit output signal
The purpose that amplitude automatically controls.In addition the radio frequency high tension resonance circuit output signal electric current that industrial personal computer measures oscillograph board
Value and the current threshold of setting compare, and to carry out the flow monitoring excessively of whole system, while industrial personal computer surveys oscillograph board
The working current value for the radio frequency high tension resonance circuit measured and the operating current threshold value of setting compare, to carry out radio frequency high tension
Resonance circuit crosses flow monitoring.
In the present embodiment, user interface is arranged in industrial personal computer, is penetrated by what user interface display oscillograph board measured
The current value of frequency high pressure resonance circuit output signal and the working current value of voltage value and radio frequency high tension resonance circuit, Yong Hutong
Crossing the user interface can be with the current value of real time inspection radio frequency high tension resonance circuit output signal and voltage value and radio frequency high tension
The working current value of resonance circuit.
It in the present embodiment, include that RF output voltage amplitude and digital radio signal generation module are defeated in user interface
The parameter setting window of the frequency of radiofrequency signal and amplitude out, by the user interface, user, which can be done in real time, penetrates number
The setting of the frequency and amplitude of frequency signal generating module output signal, and complete setting for RF output voltage amplitude set value
It is fixed.
In the present embodiment, it is provided in user interface and starts/stop key, pass through the starting/stop key, Yong Huke
The control of module occurs to start and stop industrial personal computer to digital radio signal.
In the present embodiment, as shown in Fig. 2, radio frequency high tension resonance circuit is defeated including the first power amplifier tube V1, the first order
Enter biasing networks, first order output biasing networks, the second power amplifier tube V2, the second level input biasing networks, export resonance liter
Pressure network network, resonance step-up current detection circuit, the first DC power supply VD1, the second DC power supply VD2 and voltage regulator circuit；Wherein：The
The grid of one power amplifier tube V1 connects input resistant matching network, is believed by input resistant matching network connection to digital RF
Number occur module by signal output end P1, it is electric that the grid of the first power amplifier tube V1 by the first order inputs biasing networks connection
Source for the first power amplifier tube V1 provides DC offset voltage by first order input biasing networks, enables power amplifier tube
Good and normal work；The drain electrode of first power amplifier tube V1 exports biasing networks by the first order and connects power supply, by first
Grade output biasing networks provide drain power；The drain electrode of first power amplifier tube V1 connects the first function by first order feedback network
The grid of rate amplifier tube V1, the source electrode ground connection of the first power amplifier tube V1；The drain electrode of first power amplifier tube V1 passes through grade interval
The grid of straight coupled capacitor C13 the second power amplifier tube of connection V2.The grid of second power amplifier tube V2 is inputted by the second level
Biasing networks connect power supply, provide bias voltage, the drain electrode connection of the second power amplifier tube V2 by second level input biasing networks
Export resonance boost network input terminal passes through the output end connection load P2 of export resonance boost network, the second power amplifier tube
The drain electrode of V2 connects the grid of the second power amplifier tube V2 by second level feedback network.
In the present embodiment, the first power amplifier tube V1 and its first order feedback network of connection constitute the present embodiment and penetrate
The first order power amplification circuit of frequency high pressure resonance circuit, the first order power amplification circuit are rear class export resonance boost network
The second level resonance circuit constituted provides enough driving resonant radio frequency signals.
In the present embodiment, export resonance boost network connects the output end of resonance step-up current detection circuit, passes through resonance
Boost current detection circuit carries out size of current detection.Resonance step-up current detection circuit can be with real-time detection to export resonance liter
The operating current of pressure network network, the resonance circuit for preventing export resonance boost network to be constituted lead to export resonance liter because electric current is excessive
The second power amplifier tube damage that pressure network network is connected.
In the present embodiment, the first power amplifier tube V1 is radio-frequency power amplifier tube, and the second power amplifier tube V2 can be used
What power field effect pipe, the first power amplifier tube V1 and the second power amplifier tube V2 were all made of is single tube structure, can simplify electricity
System effectiveness is simultaneously improved in road, effectively reduces cost and volume.
In the present embodiment, the power input of voltage regulator circuit connects the first DC power supply；First power amplifier tube V1's
Grid inputs biasing networks by the first order and connects circuit output end of pressure-stabilizing；The grid of second power amplifier tube V2 passes through the second level
It inputs biasing networks and connects circuit output end of pressure-stabilizing；The drain electrode of first power amplifier tube V1 exports biasing networks by the first order and connects
Connect the first DC power supply.
In the present embodiment, as shown in figure 3, voltage regulator circuit includes voltage-stabiliser tube Q1, capacitor C1, capacitor C2, capacitor C3 and electricity
Hold C4, wherein the power input of voltage-stabiliser tube connects the first DC power supply, and is grounded by capacitor C1, the output end of voltage-stabiliser tube
It is connect respectively with one end of capacitor C2, capacitor C3 and capacitor C4, as the voltage output end of voltage regulator circuit, capacitor C2, capacitor C3
It is grounded with the other end of capacitor C4.The first DC power supply provides the voltage of+27V, the first direct current in the present embodiment
For+27V the voltage that source provides after voltage regulator circuit, the burning voltage for exporting+5V inputs biasing networks and the second level to the first order
Input the input terminal of biasing networks.
As shown in figure 3, in the present embodiment input resistant matching network include the first transformer T1, resistance R1, capacitor C10 and
Module by signal output end occurs for the primary Same Name of Ends connection digital radio signal of capacitor C11, the first transformer T1, and described the
The primary different name end of one transformer T1 is grounded, and the secondary Same Name of Ends of the first transformer T1 is sequentially connected resistance R1 and capacitor
The grid of the first power amplifier tube V1 is connected after C11；The secondary Same Name of Ends connection capacitor C10 of the first transformer T1 is followed by
Ground, the secondary different name end ground connection of the first transformer T1.In the present embodiment, the first transformer T1 is radio-frequency transformer.
In the present embodiment, first order input biasing networks include inductance L4, capacitor C9, resistance R2, resistance R3, resistance R4
With potentiometer SR1；Wherein, one end of inductance L4 connects power supply, and the input terminal of biasing networks is inputted as the first order, inductance L4's
The other end is separately connected one end of capacitor C9, resistance R2 and resistance R3；The other end ground connection of capacitor C9, resistance R2 and resistance R3's
The other end connects with one end of resistance R4 and is all connected with the grid of the first power amplifier tube V1, inputs biasing net as the first order
The output end of network；The other end of resistance R4 is grounded, and the resistor body both ends of potentiometer SR1 are connected respectively the both ends of resistance R4,
The sliding end of potentiometer SR1 is grounded.In the present embodiment, first order input biasing net can be adjusted by adjusting potentiometer SR1
Network output voltage, adjusting the output voltage that potentiometer SR1 makes the first order input biasing networks in the present embodiment is
3.1V。
In the present embodiment, as shown in figure 3, first order output biasing networks include inductance L1, inductance L2, capacitor C5, electricity
Hold C6, capacitor C7 and capacitor C8, wherein one end of inductance L2 connects the drain electrode of the first power amplifier tube V1, exports as the first order
The output end of biasing networks, one end of the other end connection inductance L1 of inductance L2, the other end of inductance L1 connect power supply, as the
The input terminal of level-one output biasing networks；Wherein inductance L2 connects one end with inductance L1 and is connect by capacitor C7 and capacitor C8 in parallel
Ground, one end that inductance L1 is connected with power supply is by capacitor C6 and capacitor C5 ground connection in parallel, and wherein capacitor C6 and capacitor C7 is nothing
Polar capacitor, capacitor C5 and capacitor C8 are electrolytic capacitor.Above-mentioned inductance L2 is air core inductor, is formed by enameled wire coiling.
In the present embodiment, as shown in figure 3, second level input biasing networks include inductance L5, resistance R6, resistance R7 and electricity
Hinder R8；Wherein, a termination power of inductance L5, the input terminal as second level input biasing networks；The other end of inductance L5 is logical
One end that resistance R6 in parallel connects resistance R8 with resistance R7 is crossed, wherein resistance R6 and resistance R7 connect the with one end of resistance R8
The grid of two power amplifier tube V2, the output end as second level input biasing networks.
In the present embodiment, as shown in figure 3, first order feedback network includes concatenated resistance R5 and the second level capacitor C12
Feedback network includes concatenated resistance R9 and capacitor C14.
In the present embodiment, as shown in figure 3, export resonance boost network includes the second transformer T2, wherein transformer T2
Primary Same Name of Ends is export resonance boost network primary input terminal, at the beginning of the primary different name end transformer T2 is export resonance boost network
Grade output end, T2 grade Same Name of Ends of transformer are secondary first output end of export resonance boost network, T2 grade different name of transformer
End is export resonance boost network secondary second output terminal.In the present embodiment, the primary different name end connection of the second transformer T2
The drain electrode of second power amplifier tube V2, the output end of the primary Same Name of Ends connection current detector of the second transformer T2, second becomes
Load is connected between the secondary Same Name of Ends of depressor T2 and secondary different name end.
The second transformer T2 resonance step-up transformer, uses hollow backbone coiling to form in the present embodiment, primary, secondary
Conducting wire is formed by radio frequency line and enameled wire coiling, and the no-load voltage ratio of the second transformer T2 is 2:3.
In the present embodiment, the connected resonance step-up current detection circuit of export resonance boost network includes current detecting chip
D1, inductance L3, resistance R10 and resistance R11, above-mentioned current detecting chip D1 is ACS712 chip in the present embodiment, certainly
Can be other can be realized the chip or current detection module of current detecting；
In the present embodiment resonance step-up current detection circuit, the in one end of inductance L3 connection export resonance boost network
The primary Same Name of Ends of two transformer T2, the current output terminal of the other end connection current detecting chip D1 of inductance L3, i.e. ACS712
3rd and 4 pins of chip, it is straight that current input terminal, that is, ACS712 chip the 1st of current detecting chip D1 connects second with 2 pins
Galvanic electricity source, one end that wherein inductance L3 is connect with the current output terminal of current detecting chip D1 pass through capacitor C23 and electricity in parallel
Solve capacitor C22 ground connection；The current input terminal of current detecting chip D1 passes through capacitor C21 and electrolytic capacitor C20 ground connection in parallel.Electricity
After 7 pins of current detection signal output end, that is, ACS712 chip of stream detection chip D1 are sequentially connected resistance R11 and resistance R10
Ground connection, one end that resistance R11 is connected with resistance R10 connect oscillograph as the current detecting end of resonance step-up current detection circuit
Board, in addition current detecting end passes through capacitor C15 and capacitor C16 ground connection in parallel respectively；Resistance R10 is connected with resistance R11
One end is grounded by capacitor C17.5th pin of ACS712 chip is grounded, and the 6th pin is grounded by capacitor C18, and the 8th pin connects
5V DC power supply, while being grounded by capacitor C19.In the present embodiment, inductance L3 is air core inductor.The output of second DC power supply
Voltage be+48V.
The specific work process of the above-mentioned radio frequency high tension output amplitude automatic control system of the present embodiment is as follows：
Industrial personal computer sets RF output voltage amplitude set value, while industrial personal computer setting digital radio signal generation module is defeated
The frequency and amplitude of radiofrequency signal out, to control the radiofrequency signal that module output corresponding frequencies and amplitude occur for digital radio signal
Into radio frequency high tension resonance circuit；Industrial personal computer setting electric current threshold value and operating current threshold value；
Radiofrequency signal enters after radio frequency high tension resonance circuit carries out resonance enhanced processing and is output to load；Radio-frequency current inspection
Slowdown monitoring circuit gets the current signal of radio frequency high tension resonance circuit output, the current signal is sent to oscillograph board, by showing
Wave device board carries out current waveform measurement, obtains the current value of radio frequency high tension resonance circuit output signal；Radio-frequency voltage inspection simultaneously
Slowdown monitoring circuit gets the voltage signal of radio frequency high tension resonance circuit output, the voltage signal is sent to oscillograph board, by showing
Wave device board carries out voltage waveform measurement, obtains the voltage value of radio frequency high tension resonance circuit output signal；Resonance step-up electricity simultaneously
Current detection circuit gets the resonance step-up current detection signal of radio frequency high tension resonance circuit, by resonance step-up current detection signal
It sends oscillograph board to, current waveform measurement is carried out by oscillograph board, obtains the operating current of radio frequency high tension resonance circuit；
Industrial personal computer reads the voltage value for the radio frequency high tension resonance circuit output signal that oscillograph board measures, and then should
Voltage value and RF output voltage amplitude set value are compared, if the voltage value is less than RF output voltage amplitude set value,
Then industrial personal computer control increases the amplitude that module output radiofrequency signal occurs for digital radio signal, if the voltage value is exported greater than radio frequency
Voltage amplitude set point value, then industrial personal computer control reduces the amplitude that module output radiofrequency signal occurs for digital radio signal；
Industrial personal computer reads the current value for the radio frequency high tension resonance circuit output signal that oscillograph board measures, and then should
Current value and current threshold compare, to carry out the flow monitoring excessively of radio frequency high tension output amplitude automatic control system；
Industrial personal computer reads the working current value for the radio frequency high tension resonance circuit that oscillograph board measures, then by the work
Current value and operating current threshold value compare, to carry out the flow monitoring excessively of radio frequency high tension resonance circuit.
In the present embodiment, the course of work of radio frequency high tension resonance circuit is as follows：
The transformer T2 for regulating export resonance boost network first determines transformer by the calculation method of resonance frequency
The secondary inductance values of T2, and primary coil circle number is determined according to the no-load voltage ratio of T2 grade of transformer；In the present embodiment, export resonance
The secondary of transformer T2 forms resonant tank with after the connection of load in boost network, the resonance frequency f meter of the resonant tank
It is as follows to calculate formula：
Wherein L be transformer T2 secondary inductance values, C be the equivalent capacitance of export resonance boost network output loop connecting line,
Line distribution capacitance, load capacitance.The frequency that module output radiofrequency signal occurs for digital radio signal is adjusted to resonant tank
Resonance frequency f when, export resonance boost network can work after input radio frequency signal in resonant state.Or adjustment resonance
Above-mentioned parameter L and C in circuit, so that module output radiofrequency signal occurs for resonance frequency f and digital radio signal in resonant tank
Frequency, then export resonance boost network can also work in resonant state after input radio frequency signal.
Then potentiometer SR1 in biasing networks is inputted by the first order and adjusts first order input biasing networks output electric current,
So that the first power amplifier tube V1 work is in suitable working condition；
When the radiofrequency signal of digital radio signal generation module output corresponding frequencies and amplitude to radio frequency high tension resonance circuit
When middle, radiofrequency signal first passes around after input resistant matching network carries out impedance matching and passes to the first power amplifier tube V1 progress function
Rate amplification, passes to the second power amplifier tube V2 by blocking coupled capacitor between grade, in the second power amplifier tube V2, transformer T2 and
After load carries out voltage resonance, radio frequency high tension signal is exported to load from T2 grade of transformer.In the present embodiment, number is adjusted
The frequency that module output signal occurs for radiofrequency signal can search out optimal resonant frequency point, when module occurs for digital radio signal
When the frequency of block output signal is identical with the resonance frequency f of export resonance boost network resonant tank, that is, search out optimal humorous
Vibration frequency point, on resonant frequency point, when continuously adjusting the output amplitude of radio-frequency signal source, export resonance boost network resonance
The amplitude of the radio frequency high tension signal of output can also follow its consecutive variations, and export resonance boost network output voltage mean-square value
In 2KV or more.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (10)
1. a kind of radio frequency high tension output amplitude automatic control system, which is characterized in that occur including industrial personal computer, digital radio signal
Module, radio frequency high tension resonance circuit, radio-frequency current detection circuit, resonance step-up current detection circuit, radio-frequency voltage detection circuit
With oscillograph board；
Module occurs for the industrial personal computer connection digital radio signal, and module output radiofrequency signal occurs for control digital radio signal
Frequency and amplitude；
The digital radio signal occurs module by signal output end and connects radio frequency high tension resonance circuit；
The output end of the radio frequency high tension resonance circuit connects radio-frequency current detection circuit, is obtained by radio-frequency current detection circuit
The current signal exported to radio frequency high tension resonance circuit；
The connection resonance step-up current detection circuit of radio frequency high tension resonance circuit is penetrated by the acquisition of resonance step-up current detection circuit
The resonance step-up current detection signal of frequency high pressure resonance circuit；
The output end of the radio frequency high tension resonance circuit connects radio-frequency voltage detection circuit, is obtained by radio-frequency voltage detection circuit
The voltage signal exported to radio frequency high tension resonance circuit；
The radio-frequency current detection circuit, radio-frequency voltage detection circuit and resonance boost current detection circuit are separately connected oscillograph
Board, the current signal of the radio frequency high tension resonance circuit output that will test and voltage signal and radio frequency high tension resonance circuit
Resonance step-up current detection signal, which is respectively transmitted, gives wave device board, and it is defeated to measure radio frequency high tension resonance circuit by oscillograph board
The working current value of the current value of signal and voltage value and radio frequency high tension resonance circuit out；
The oscillograph board connects industrial personal computer, and industrial personal computer reads the radio frequency high tension resonance circuit output letter that oscilloscope measurement goes out
Number current value and voltage value.
2. radio frequency high tension output amplitude automatic control system according to claim 1, which is characterized in that the radio frequency high tension
Resonance circuit includes the first power amplifier tube V1, first order input biasing networks, the first order exports biasing networks, the second power is put
Big pipe V2, second level input biasing networks and export resonance boost network；Wherein：
The grid of first power amplifier tube V1 connects input resistant matching network, passes through input resistant matching network connection to number
Module by signal output end occurs for radiofrequency signal, and the grid of the first power amplifier tube V1 inputs biasing networks by the first order and connects
Power supply is connect, the drain electrode of the first power amplifier tube V1 exports biasing networks by the first order and connects power supply, the first power amplifier tube V1
Drain electrode the grid of the first power amplifier tube V1 is connected by first order feedback network, the source electrode of the first power amplifier tube V1 connects
Ground；The drain electrode of the first power amplifier tube V1 connects the grid of the second power amplifier tube V2 by blocking condenser；
The grid of second power amplifier tube V2 inputs biasing networks by the second level and connects power supply, the leakage of the second power amplifier tube V2
Pole connects export resonance boost network input terminal, and the drain electrode of the second power amplifier tube V2 passes through second level feedback network connection second
The grid of power amplifier tube V2.
3. radio frequency high tension output amplitude automatic control system according to claim 2, which is characterized in that the input impedance
Matching network includes the first transformer T1, resistance R1, capacitor C10 and capacitor C11, the primary Same Name of Ends of the first transformer T1
It connecting digital radio signal and module by signal output end occurs, the primary different name end of the first transformer T1 is grounded, and described first
The secondary Same Name of Ends of transformer T1 is sequentially connected the grid that the first power amplifier tube V1 is connected after resistance R1 and capacitor C11；It is described
It is grounded after the secondary Same Name of Ends connection capacitor C10 of first transformer T1, the secondary different name end ground connection of the first transformer T1.
4. radio frequency high tension output amplitude automatic control system according to claim 2, which is characterized in that the first order is defeated
Entering biasing networks includes inductance L4, capacitor C9, resistance R2, resistance R3, resistance R4 and potentiometer SR1；Wherein, one end of inductance L4
Connect power supply, as the first order input biasing networks input terminal, the other end of inductance L4 be separately connected capacitor C9, resistance R2 and
One end of resistance R3；The other end of capacitor C9 is grounded, resistance R2 connected with the other end of resistance R3 with one end of resistance R4 and
It is all connected with the grid of the first power amplifier tube V1, the output end as first order input biasing networks；Another termination of resistance R4
Ground, the resistor body both ends of potentiometer SR1 are connected respectively the both ends of resistance R4, the sliding end ground connection of potentiometer SR1；
First order output biasing networks include inductance L1, inductance L2, capacitor C5, capacitor C6, capacitor C7 and capacitor C8, wherein
One end of inductance L2 connects the drain electrode of the first power amplifier tube V1, as the output end of first order output biasing networks, inductance L2
Other end connection inductance L1 one end, the other end of inductance L1 connects power supply, the input as first order output biasing networks
End；Wherein inductance L2 connects one end with inductance L1 and is grounded by capacitor C7 and capacitor C8 in parallel, what inductance L1 was connected with power supply
One end is by capacitor C6 and capacitor C5 ground connection in parallel, and wherein capacitor C6 and capacitor C7 is polarity free capacitor, capacitor C5 and capacitor
C8 is electrolytic capacitor.
5. radio frequency high tension output amplitude automatic control system according to claim 2, which is characterized in that the second level is defeated
Entering biasing networks includes inductance L5, resistance R6, resistance R7 and resistance R8；Wherein, a termination power of inductance L5, as the second level
Input the input terminal of biasing networks；The other end of inductance L5 connects one end of resistance R8 by resistance R6 in parallel with resistance R7,
Wherein resistance R6 and resistance R7 connect the grid of the second power amplifier tube V2 with one end of resistance R8, inputs and biases as the second level
The output end of network.
6. radio frequency high tension output amplitude automatic control system according to claim 2, which is characterized in that the export resonance
Boost network includes the second transformer T2, wherein the primary different name end of the second transformer T2 connects the leakage of the second power amplifier tube V2
Pole, the output end of the primary Same Name of Ends connection current detector of the second transformer T2, load are connected to time of the second transformer T2
Between grade Same Name of Ends and secondary different name end.
7. radio frequency high tension output amplitude automatic control system according to claim 6, which is characterized in that state resonance step-up electricity
Current detection circuit includes current detecting chip D1, inductance L3, resistance R10 and resistance R11, and wherein one end of inductance L3 connects output
Resonance step-up network, the current output terminal of the other end connection current detecting chip D1 of inductance L3, the electricity of current detecting chip D1
Flow input terminal connect the second DC power supply, the current detection signal output end of current detecting chip D1 be sequentially connected resistance R11 and
It is grounded after resistance R10, current detecting end of the one end that resistance R11 is connected with resistance R10 as resonance step-up current detection circuit
Oscillograph board is connected, while one end that resistance R10 is connected with resistance R11 is grounded by capacitor C17.
8. radio frequency high tension output amplitude automatic control system according to claim 2, which is characterized in that the radio frequency high tension
Resonance circuit further includes the first DC power supply and voltage regulator circuit；The power input of voltage regulator circuit connects the first DC power supply；
The grid of the first power amplifier tube V1 inputs biasing networks by the first order and connects circuit output end of pressure-stabilizing；
The grid of the second power amplifier tube V2 inputs biasing networks by the second level and connects circuit output end of pressure-stabilizing；
The drain electrode of the first power amplifier tube V1 exports biasing networks by the first order and connects the first DC power supply.
9. radio frequency high tension output amplitude automatic control system according to claim 2, which is characterized in that the first order is anti-
Presenting network includes concatenated resistance R5 and capacitor C12；The second level feedback network includes concatenated resistance R9 and capacitor C14.
10. radio frequency high tension output amplitude automatic control system according to claim 1, which is characterized in that the industrial personal computer
Be provided with current value for showing radio frequency high tension resonance circuit output signal that oscillograph board measures and voltage value and
The user interface of the working current value of radio frequency high tension resonance circuit, include in the user interface RF output voltage amplitude and
The frequency of module output radiofrequency signal and the parameter setting window of amplitude occur for digital radio signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820734242.7U CN208110426U (en) | 2018-05-16 | 2018-05-16 | A kind of radio frequency high tension output amplitude automatic control system |
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| CN201820734242.7U CN208110426U (en) | 2018-05-16 | 2018-05-16 | A kind of radio frequency high tension output amplitude automatic control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415497A (en) * | 2018-05-16 | 2018-08-17 | 广州宇曦电子科技有限公司 | A kind of radio frequency high tension output amplitude automatic control system and method |
| CN112671352A (en) * | 2020-11-26 | 2021-04-16 | 钢研纳克检测技术股份有限公司 | Ion funnel radio frequency driving power supply of portable mass spectrometer |
| CN112671352B (en) * | 2020-11-26 | 2024-05-24 | 钢研纳克检测技术股份有限公司 | Ion funnel radio frequency driving power supply of portable mass spectrometer |
-
2018
- 2018-05-16 CN CN201820734242.7U patent/CN208110426U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415497A (en) * | 2018-05-16 | 2018-08-17 | 广州宇曦电子科技有限公司 | A kind of radio frequency high tension output amplitude automatic control system and method |
| CN108415497B (en) * | 2018-05-16 | 2023-12-29 | 广州宇曦电子科技有限公司 | Automatic control system and method for radio frequency high-voltage output amplitude |
| CN112671352A (en) * | 2020-11-26 | 2021-04-16 | 钢研纳克检测技术股份有限公司 | Ion funnel radio frequency driving power supply of portable mass spectrometer |
| CN112671352B (en) * | 2020-11-26 | 2024-05-24 | 钢研纳克检测技术股份有限公司 | Ion funnel radio frequency driving power supply of portable mass spectrometer |
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