CN206992977U - One kind is applied to the mass spectrometric radio-frequency power supply circuit of level Four bar - Google Patents
One kind is applied to the mass spectrometric radio-frequency power supply circuit of level Four bar Download PDFInfo
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- CN206992977U CN206992977U CN201720382636.6U CN201720382636U CN206992977U CN 206992977 U CN206992977 U CN 206992977U CN 201720382636 U CN201720382636 U CN 201720382636U CN 206992977 U CN206992977 U CN 206992977U
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Abstract
It the utility model is related to and be applied to the mass spectrometric radio-frequency power supply circuit of level Four bar, there is high RST efficiency of transmission and control accuracy, and low spatial radiation field, while circuit structure is simple, dramatically saves on hardware cost.The circuit includes：Sine wave oscillation circuit, it is connected with FM circuit, for producing sine voltage signal and sine voltage signal being input into FM circuit；FM circuit, it is connected with amplifying circuit, for being modulated to the frequency of sine voltage signal；Amplifying circuit, it is connected with the armature winding of step-up transformer, for being amplified to the sine voltage signal through ovennodulation；Step-up transformer, for further amplifying to the sine voltage signal through ovennodulation；Backfeed loop, for gathering sampled signal from step-up transformer, be converted to pulsating dc voltage and rear class reference voltage by the bridge rectifier alternating voltage that will pulse and carry out difference operation and difference signal is fed back into FM circuit to realize the stability contorting of output voltage.
Description
Technical field
The technical field of radio-frequency power supply is the utility model is related to, it is more particularly to a kind of to be applied to the mass spectrometric radio frequency of level Four bar
Power circuit.
Background technology
Mass spectrograph can be used for the detection of material quantitative and qualitative and possess efficient accurate measurement characteristicses, biology, medical treatment,
The fields such as food have extensive use.For level Four bar as one of mass spectrometric core component, it passes through the effect of alternating electric field, reality
Existing different mass-to-charge ratio ion isolations.It can be vibrated in alternating electric field environment intermediate ion according to electric-field intensity, only specific matter lotus
What the ion of ratio can be stablized passes through electric field.When the timing of electric-field intensity one on quadrupole rod, quality ion less than normal can be by very
Strong electric field action, cause it that fierce collision occurs with level Four bar inwall, finally lose electric charge and taken away by vacuum system.Quality
Excessive ion causes it to be moved by electrical field draw due to can not obtain enough electric field energies, finally with level Four bar inwall
Collide the electric field that flies out.
Alternating electric field on level Four bar AC sine wave electric field Vcos (ω t) and direct current generally as caused by radio-frequency power supply
DC high voltage electric field U is formed by stacking caused by source, and ion percent of pass is adjusted by the ratio for adjusting U and V.Conventional level Four bar mass spectrum
The radio-frequency power supply step-up transformer that instrument uses generally use air skeleton, causes radio-frequency power supply to ensure there is sufficiently high Q values
Volume is larger, and coil windings are excessive, and inconvenience is brought to installation and debugging.Further, radio-frequency power supply sampling feedback circuit leads to
Sampled frequently with resistance sampling or light-coupled isolation, cause circuit complicated, stability is not high.Moreover, level Four bar mass spectrograph is generally adopted
PFM controls are realized with analog chip, its control accuracy is difficult to ensure that, and large-scale production uniformity is poor.
Utility model content
To solve above-mentioned problems and shortcomings, a kind of radio frequency friendship that PFM control technologies are realized based on MCU is designed and produced
Flow voltage-stabilized power supply.
The utility model is used to provide adjustable alternating voltage for mass spectrograph level Four bar circuit.The circuit is realized by MCU
PFM is controlled, so as to realize that AC field is adjusted.This utility model technology is compared to the radio-frequency power supply used in conventional mass spectrometer
Circuit, alternating voltage is adjustable, small volume, and stability is good.Conventional RF power source step-up transformer uses air skeleton, and this practicality is newly
Type on the premise of the high quantity of electric charge and enough inductance values is ensured, is substantially reduced boosting then using high-permeability material as magnetic core
The volume of transformer, while reduce the Transformer Winding number of turns.To ensure sampling precision, circuit reliability is improved, this practicality is new
Type in step-up transformer one group of winding of secondary increase by realizing that output voltage samples.
One embodiment of the present utility model provides one kind and is applied to the mass spectrometric radio-frequency power supply circuit of level Four bar, the electricity
Road includes：Sine wave oscillation circuit, it is connected with FM circuit, for producing sine voltage signal and by sine voltage signal
It is input to FM circuit；FM circuit, it is connected with amplifying circuit, for being modulated to the frequency of sine voltage signal；Put
Big circuit, it is connected with the armature winding of step-up transformer, for being amplified to the sine voltage signal through ovennodulation；Boosting
Transformer, for further amplifying to the sine voltage signal through ovennodulation；Backfeed loop, including sample circuit, Yi Jiyu
The connected MCU control circuit of sample circuit；Sample circuit, be connected with the secondary windings of step-up transformer, for from boosting transformation
Device gathers sampled signal and sampled signal is fed back into MCU control circuit；MCU control circuit, it is connected with FM circuit, for root
Sampled signal is handled and produce the pulse signal of changeable frequency according to setting pid algorithm instruction, and by changeable frequency
Pulse signal feeds back to FM circuit after over sampling is handled.
Preferably, sampled signal is ac voltage signal.
Preferably, the circuit also includes：Dc source, and the malleation reduction voltage circuit that is connected respectively with dc source and negative
Pressure drop volt circuit；Wherein, dc source is the input of malleation reduction voltage circuit and negative pressure reduction voltage circuit, malleation reduction voltage circuit be used for
Sine wave oscillation circuit provides positive voltage input, and negative pressure reduction voltage circuit is used to provide negative voltage input to sine wave oscillation circuit.
Preferably, malleation reduction voltage circuit is additionally operable to provide supply voltage to FM circuit, MCU control circuit.
Preferably, sample circuit includes electric bridge, RC wave filters and sampling amplifier；Wherein, electric bridge includes four diodes,
Four diodes are in parallel and diagonal with two after connecting two-by-two, and one of them is diagonally carried out with the secondary windings of step-up transformer
Electrical connection, another is diagonally electrically connected with amplifying circuit and RC wave filters；
RC wave filters are connected between electric bridge and sampling amplifier, for being filtered to sampled signal；
Sampling amplifier is connected with MCU control circuit, including in-phase input end and inverting input, inverting input are used for
Sampled signal after filtering is received, homophase input is terminated with voltage-stablizer.
Preferably, amplifying circuit is cascode level amplifying circuit.
Push-pull type emitter follower, push-pull type emitter follower are preferably additionally provided between amplifying circuit and step-up transformer
For carrying out impedance variations to the sine voltage signal by amplification.
Preferably, the circuit also includes DC voltage power supply module, is connected with step-up transformer, for step-up transformer
DC voltage is provided and forms Alternate and direct electric field.
Preferably, dc source is connected with amplifying circuit and push-pull type emitter follower, for amplifying circuit and recommending
Formula emitter follower provides bias voltage.
Preferably, step-up transformer is connected with the load of level Four bar, and Alternate and direct electric field is provided for being loaded to level Four bar.
It should be understood that in the scope of the utility model, above-mentioned each technical characteristic of the present utility model and below (such as implementation
Example) in specifically describe each technical characteristic between can be combined with each other, so as to form new or preferable technical scheme.It is limited to
Length, no longer tire out one by one state herein.
Brief description of the drawings
Fig. 1 is the structure suitable for the mass spectrometric radio-frequency power supply circuit of level Four bar in one embodiment of the present utility model
Schematic diagram
Fig. 2 is the circuit structure diagram of embodiment as shown in Figure 1, shows the circuit theory of radio-frequency power supply circuit.
Fig. 3 is entering for the sine wave oscillation circuit of the present utility model suitable for the mass spectrometric radio-frequency power supply circuit of level Four bar
One step embodiment.
Fig. 4 is the further reality of the amplifying circuit of the present utility model suitable for the mass spectrometric radio-frequency power supply circuit of level Four bar
Apply example.
Embodiment
Applicant develops a kind of radio frequency electrical suitable for mass spectrometric level Four bar first by in-depth study extensively
Source circuit, by setting DC-DC change-over circuits to realize the function that DC voltage is depressured, replacement is of the prior art to use transformation
The method of device, the DC voltage after obtained decompression is more stable, and simplifies circuit structure；Taken in addition, devising one kind
Sample circuit, the voltage signal collected from final output end directly can be directly fed back to FM circuit, for FM circuit
Frequency modulation action is carried out accordingly, further simplify circuit structure；Further, can be to analog signal by using MCU control circuit
The sampled signal of form carries out digital processing, and control accuracy is higher and loop is corresponding faster.
Term
As used herein, term " PFM " refers to pulse-frequency modulation control method, and the frequency that can adjust modulated signal is believed with input
The change of number amplitude, and pulse duty factor is constant.
It the utility model is related to one kind and be applied to the mass spectrometric radio-frequency power supply circuit of level Four bar, including：Sine-wave oscillation electricity
Road, it is connected with FM circuit, for producing sine voltage signal and sine voltage signal being input into FM circuit；Frequency modulation
Circuit, it is connected with amplifying circuit, for being modulated to the frequency of sine voltage signal；Amplifying circuit, with step-up transformer
Armature winding be connected, for being amplified to the sine voltage signal through ovennodulation；Step-up transformer is stated, for passing through
The sine voltage signal of modulation further amplifies；Backfeed loop, including sample circuit and the MCU that is connected with sample circuit
Control circuit；Sample circuit, it is connected with the secondary windings of step-up transformer, for gathering sampled signal from step-up transformer and inciting somebody to action
Sampled signal feeds back to MCU control circuit；MCU control circuit, it is connected with FM circuit, for according to setting pid algorithm instruction
Sampled signal is handled and produces the pulse signal of changeable frequency, and by the pulse signal of changeable frequency through over sampling at
FM circuit is fed back to after reason.
The utility model is compared to common radio-frequency power supply on the market, due to using iron sial material as power transformer magnetic
Core, so its volume reduces a lot, performance is more stable, and efficiency of transmission is higher, and space radiation magnetic field reduces a lot, is advantageous to
Integrated installation and debugging.The program realizes PFM adjustment controls by MCU, and compared to traditional radio-frequency power supply, its control accuracy is more
Height, loop response speed is faster.Circuit sampling feedback fraction is directly sampled by step-up transformer secondary windings, compared to normal
Light-coupled isolation sampling is advised, more reliable performance, stability is higher, and circuit structure is simple.
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.The experimental method of unreceipted actual conditions in the following example, lead to
Often according to normal condition, or according to the condition proposed by manufacturer.Unless otherwise indicated, otherwise percentage and number are weight
Percentage and parts by weight.
It should be noted that in the claim and specification of this patent, such as first and second or the like relation
Term is used merely to make a distinction an entity or operation with another entity or operation, and not necessarily requires or imply
Any this actual relation or order be present between these entities or operation.Moreover, term " comprising ", "comprising" or its
Any other variant is intended to including for nonexcludability so that process, method, article including a series of elements or
Equipment not only includes those key elements, but also the other element including being not expressly set out, or also include for this process,
Method, article or the intrinsic key element of equipment.In the absence of more restrictions, wanted by what sentence " including one " limited
Element, it is not excluded that other identical element in the process including key element, method, article or equipment also be present.
Fig. 1 is the structure suitable for the mass spectrometric radio-frequency power supply circuit of level Four bar in one embodiment of the present utility model
Schematic diagram.As shown in figure 1, the circuit includes dc source (24V) 101, positive voltage drops volt circuit 102, negative voltage reduction voltage circuit
103, sine wave oscillation circuit 104, FM circuit 105, cascode level amplifying circuit 106, push-pull type emitter follower 107, boosting
Transformer 108, DC high-voltage source module 109, sample circuit 110, MCU control circuit 111 and level Four bar load 112.
Specifically：24V dc sources 101 respectively with positive voltage drops volt circuit 102 and the phase of negative voltage reduction voltage circuit 103
Even, the input power as circuit 102 and 103；Power supply 101 be additionally operable to common emitter amplifying circuit 106 and push-pull type emitter-base bandgap grading with
Bias voltage is provided with device 107.
The two reduction voltage circuits 102 and 103 are used to for DC voltage to be converted into required relatively low DC voltage, relative to
The method that the conversion of DC-DC positive-negative powers is realized using traditional transformer formula linear power supply, is simplified circuit structure, improves electric energy
Transmission utilization ratio, and significantly reduce the volume of required electric circuit.For example, positive voltage drops volt circuit 102 is to input power
Voltage 24V produces positive voltage 12V after carrying out DC-DC decompressions；Similarly, negative voltage reduction voltage circuit 103 enters to input supply voltage 24V
Negative voltage -12V is produced after row DC-DC decompressions.Reduction voltage circuit 102 and 103 is connected with oscillating circuit 104, and inputs positive voltage 12V
Its operating voltage is used as with negative voltage -12V to oscillating circuit 104, so as to which oscillating circuit 104 produces sine under the operating voltage
Wave voltage signal, therefore ± 12V is the voltage magnitude of the sine voltage signal.The sine voltage signal is radio-frequency power supply electricity
The primary voltage signals on road, follow-up circuit structure is mainly used in being amplified the primary voltage signals, modulate and with it is straight
Flow the processing of electric field superposition.
In addition, positive voltage drops volt circuit 102 is also connected with FM circuit 105 and MCU control circuit 111, for frequency modulation
Circuit 105 and MCU control circuit 111 provide operating voltage (such as " positive voltage 12V ").
Sine wave oscillation circuit 104, FM circuit 105, cascode level amplifying circuit 106, the and of push-pull type emitter follower 107
Step-up transformer 108 is electrically connected successively.Above-mentioned primary voltage signals are input to FM circuit 105, FM circuit 105
Cascode level amplifying circuit 106 will be input to by the voltage signal of frequency modulation after frequency modulation processing is carried out to it, amplifying circuit 106 is to electricity
The amplitude of pressure signal is amplified, and multiplication factor is 10 to 20 times, and subsequent push-pull type emitter follower 107 follows holding to pass through
The voltage signal of amplification, and the impedance to signal carries out matching treatment simultaneously, reduces the prime loss of signal to greatest extent.Recommend
Formula emitter follower 107 is connected with the armature winding of step-up transformer 108, therefore the sine converted by enhanced processing and impedance
Wave voltage signal drives the step-up transformer 108, and the bearing of being connected with step-up transformer 108 of supply after boost power converts
Carry, in the present embodiment, the load is mass spectrometric level Four bar.Meanwhile the secondary windings side of step-up transformer 108 is also accessed
For providing the DC high-voltage source module 109 of DC electric field.Caused by the DC voltage and secondary windings that module 109 provides
It is then the operating voltage of load that alternating voltage, which is overlapped mutually caused superimposed voltage,.
In the present embodiment, the magnetic core of step-up transformer 108 uses the material with higher magnetic permcability, such as iron sial magnetic
Ring, it can greatly reduce the umber of turn of step-up transformer 108 as the transformer of magnetic core relative to use air skeleton,
Save material and reduce volume of transformer；And stability is compared to using plastic material, other low magnetic permeability materials work
It is more preferable for the transformer of magnetic core.
In the present embodiment, sample circuit 110 and MCU control circuit 111 form negative feedback loop, and the backfeed loop is used for
Sampled from step-up transformer 108, FM circuit 105 is fed back to after digital processing is carried out to the ac voltage signal of sampling, with
The frequency of primary voltage signals is modulated according to feedback signal for FM circuit 105.Specifically, sample circuit 110 with
One section of the secondary windings of step-up transformer 108 is connected, for the output sampling from step-up transformer 108, i.e., by boosting
Sine voltage signal, and sampled signal is input to MCU control circuit 111, after external communication instruction is received, MCU controls
Circuit 111 processed instructs according to external communication and realizes adjustment control to output voltage amplitude by PFM control techniques.Wherein, it is outside
Communication instruction is exported in the form of setting average voltage level to MCU, such as 5V etc., technical staff can be set according to self-demand
It is fixed.
Fig. 2 is the circuit structure diagram of embodiment as shown in Figure 1, shows that radio-frequency power supply circuit provides to load 112 and hands over directly
Flow the circuit theory of operating voltage.
As shown in Fig. 2 U1 and U2 represent the output electricity of positive voltage drops volt circuit 102 and negative voltage reduction voltage circuit 103 respectively
Pressure, input voltage VCC is 24V DC voltages, is converted by DC-DC, U1=12V, U2=-12V.Sine wave oscillation circuit 104
The multiple capacitors and resistor being connected including operational amplifier U4 and with operational amplifier, capacitor and resistor mutually it
Between for electrical connection.U1 is input into operational amplifier U4 inverting input, and U2 is input into operational amplifier U4 same phase
Input, so as to operational amplifier U4 output sine voltage signals (primary voltage signals).
Then, primary voltage signals access IN interfaces, while the TUNE of FM circuit as the input of FM circuit 105
Interface is connected with the CTRL interfaces of the MCU chip of MCU control circuit 111, so as to feedback signal caused by MCU control circuit 111
TUNE interfaces are input to from CTRL interfaces, the input with primary voltage signals collectively as FM circuit 105.In the present embodiment
In, the 3rd reduction voltage circuit can be used to change the work for being reduced to 5V and be used as FM circuit 105 24V DC voltages by DC-DC
Voltage, U3 as the output of the 3rd reduction voltage circuit be connected to the reduction voltage circuit of FM circuit the 3rd and above-mentioned reduction voltage circuit 102 or
103 structures are similar, are not described in detail here.
Then, the output of FM circuit 105 is by the sine voltage signal of frequency modulation, and the signal after the frequency modulation is via amplification electricity
Road 106 is amplified, and by push-pull type emitter follower 107 be input to after impedance conversion step-up transformer 108 it is primary around
Group is used as primary voltage.In another embodiment, push-pull type emitter follower 107 can omit.
Specifically, as shown in Fig. 2 24V dc sources carry to the amplifying circuit 106 and push-pull type emitter follower 107
For bias voltage.Amplifying circuit 106 includes triode T1, T2 and T3, the OUT interfaces of FM circuit 105 and triode T1 source
Extremely it is connected, is connected after triode T2 and T3 gate series with triode T1 drain electrode, triode T2 source electrode and triode T3
Drain electrode be connected, and metal-oxide-semiconductor Q1 is connected with triode T2 source electrode with triode T3 drain electrode, triode T1 source electrode and three
Pole pipe T3 source electrode is connected and is grounded.Q1 is p-type metal-oxide-semiconductor, forms push-pull type radio frequency follower 107.Triode T2 drain electrode
Output connection with Q1 is linked into the armature winding of step-up transformer 108, so as to the sine wave that will be converted by amplification and impedance
Voltage signal is input to step-up transformer 108.In addition, symbol " GND " also illustrates that ground connection.
Step-up transformer 108 uses high-permeability material as magnetic core, therefore volume greatly reduces.Above-mentioned primary voltage is
Sine voltage, the load J1 being connected with the secondary windings of step-up transformer 108 is supplied after being converted by boost power, meanwhile,
DC voltage U+ and U- are also accessed between secondary windings and load J1, DC voltage U+ and U- pass through DC high-voltage power supply mould
Block 109 provides, for being superimposed to form Alternate and direct electric field with the alternating voltage that secondary windings exports.
Wherein, as shown in Fig. 2 sample circuit 110 includes electric bridge, RC wave filters and sampling amplifier U.Electric bridge is that bridge-type is whole
Current circuit；Including four diodes D1, D2, D3 and D4, this four diodes two diodes in parallel, in parallel after connecting two-by-two
D1 and D3 plus earth, in parallel two diodes D2 and D4 negative pole are then connected with RC wave filters, two two poles of series connection
Series conductor between pipe D1 and D2 then accesses one section of the secondary windings of step-up transformer 108, similarly, two two poles of series connection
Series conductor between pipe D3 and D4 also accesses same section of secondary windings.Physical principle based on bridge-operative, electric bridge can be adopted
Collect the sine-wave current signal after boosting, and the signal is input to RC wave filters and is filtered.
RC wave filters include resistance R1 and electric capacity C3, resistance R1 and electric capacity C3 be connected in series and electric capacity C3 be grounded.R2 is used
In realizing V/I conversions, i.e., sampled current signals are converted into voltage signal, voltage signal after filtering is further inputted to
Sampling amplifier U inverting input is amplified, and multiplication factor is 10 times or so.Wherein, sampling amplifier U homophase input
Voltage-stablizer D5 is terminated with, voltage-stablizer D5 uses diode, the plus earth of the diode, and negative pole then accesses the same of amplifier U
Phase input.
Further, operational amplifier U output is by access MCU Voltage Feedback interface (i.e. VFB), MCU control circuit
Also include three capacitors C4, C5 and C6, be connected in parallel between U and MCU, for filtering out high frequency rd harmonic signal, prevent
Rd harmonic signal disturbs MCU, causes MCU to malfunction, and the side of these three capacitors is grounded.
MCU is additionally provided with RXD interfaces, for receiving data command, therefore external communication instruction for example set magnitude of voltage can be with
It is input into the RXD interfaces.MCU is instructed according to external communication and is carried out digital place by the sampled signal amplified to what is received
Reason, producing feedback signal and be input to the TUNE interfaces of FM circuit 105, the feedback signal is the pulse signal of changeable frequency,
So as to which FM circuit 105 is modulated according to the feedback signal to primary voltage signals.
Fig. 3 is entering for the sine wave oscillation circuit of the present utility model suitable for the mass spectrometric radio-frequency power supply circuit of level Four bar
One step embodiment.As shown in figure 3, sine wave oscillation circuit include operational amplifier U4 and resistor R1, R2, R8, R9 and
The mu balanced circuit that capacitor C3, C6 are formed, mu balanced circuit are used to ensure that voltage signal caused by amplifier U4 is stable.Positive voltage drops
The positive voltage of volt circuit output is input to amplifier U4 inverting input, and the negative voltage of negative voltage reduction voltage circuit output is input to fortune
U4 in-phase input end is put, positive voltage and negative voltage are the equal voltage of the opposite absolute value of symbol.Amplifier U4 output end connection
To FM circuit.
Fig. 4 is the further reality of the amplifying circuit of the present utility model suitable for the mass spectrometric radio-frequency power supply circuit of level Four bar
Apply example.As shown in figure 4, amplifying circuit is connected to step-up transformer and sample circuit, including common emitter amplifying circuit and push-pull type
Emitter follower.Cascode level amplifying circuit include resistor R3, R4, R5, R6, R7, R11, R13, R13, R14 and capacitor C4,
C7, and triode Q1, Q2, Q4；Drain electrode, source electrode and the grid of each triode are respectively connected with resistor and/or capacitor, electricity
Resistance device and capacitor play a part of protecting triode.Push-pull type emitter follower then includes metal-oxide-semiconductor Q3, for following cascode level
Sine voltage signal after the amplification of amplifying circuit output, and impedance conversion is carried out to it.
It should be noted that the positive voltage drops volt circuit being related in Fig. 3 or Fig. 4, negative voltage reduction voltage circuit, FM circuit, boosting become
Depressor and sample circuit and the positive voltage drops volt circuit 102 in Fig. 1, negative voltage reduction voltage circuit 103, FM circuit 105, boosting become
Depressor 108 is consistent with the function of sample circuit 110.
All it is incorporated as referring in this application in all documents that the utility model refers to, just as each document quilt
It is individually recited as with reference to such.In addition, it is to be understood that after above-mentioned instruction content of the present utility model has been read, this area skill
Art personnel can make various changes or modifications to the utility model, and these equivalent form of values equally fall within the application appended claims
Book limited range.
Claims (9)
1. one kind is applied to the mass spectrometric radio-frequency power supply circuit of level Four bar, it is characterised in that including：
Sine wave oscillation circuit, it is connected with FM circuit, for producing sine voltage signal and believing the sine voltage
Number it is input to the FM circuit；
FM circuit, it is connected with amplifying circuit, for receiving the sine voltage signal and to the sine voltage signal
Frequency be modulated；
The amplifying circuit, it is connected with the input side winding of step-up transformer, for the sine voltage through ovennodulation
Signal enters amplification；
Backfeed loop, including sample circuit and MCU control circuit；
The sample circuit, be connected between the output side winding of the step-up transformer and the MCU control circuit, for from
The step-up transformer gathers sampled signal and exported to the MCU control circuit；
The MCU control circuit, be connected between the FM circuit and the sample circuit, for according to pid algorithm to institute
State sampled signal and be sampled processing, to produce the pulse signal of changeable frequency and feed back to the FM circuit；
DC voltage power supply module, it is connected with the output side winding of the step-up transformer, for being carried to the step-up transformer
For DC electric field；
The step-up transformer, it is connected with the load of level Four bar, for the sine voltage to amplifying through the amplifying circuit
Further amplification provides Alternate and direct electric field to signal to be loaded to the level Four bar.
2. circuit as claimed in claim 1, it is characterised in that the sampled signal is ac current signal.
3. circuit as claimed in claim 1, it is characterised in that also include：Dc source, and respectively with the dc source
Connected malleation reduction voltage circuit and negative pressure reduction voltage circuit；Wherein, the dc source is the malleation reduction voltage circuit and described negative
The input of pressure drop volt circuit, the malleation reduction voltage circuit is used to provide positive voltage input to the sine wave oscillation circuit, described
Negative pressure reduction voltage circuit is used to provide negative voltage input to the sine wave oscillation circuit.
4. circuit as claimed in claim 3, it is characterised in that the malleation reduction voltage circuit be additionally operable to the FM circuit,
The MCU control circuit provides supply voltage.
5. circuit as claimed in claim 1, it is characterised in that the sample circuit also includes electric bridge, RC wave filters and sampling
Amplifier；Wherein,
The RC wave filters are connected between the electric bridge and the sampling amplifier, for being filtered to the sampled signal
Ripple；
The sampling amplifier is connected with the MCU control circuit, including in-phase input end and inverting input, described anti-phase defeated
Enter end to be used to receive the sampled signal after filtering, the homophase input is terminated with voltage-stablizer.
6. circuit as claimed in claim 1, it is characterised in that the amplifying circuit is cascode level amplifying circuit.
7. circuit as claimed in claim 3, it is characterised in that be additionally provided between the amplifying circuit and the step-up transformer
Push-pull type emitter follower, the push-pull type emitter follower are used to hinder the sine voltage signal by amplification
Resistance.
8. circuit as claimed in claim 7, it is characterised in that the dc source and the amplifying circuit and the push-pull type
Emitter follower is connected, for providing bias voltage to the amplifying circuit and the push-pull type emitter follower.
9. circuit as claimed in claim 1, it is characterised in that the load of the step-up transformer and level Four bar is connected, for
The level Four bar load provides Alternate and direct electric field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720382636.6U CN206992977U (en) | 2017-04-12 | 2017-04-12 | One kind is applied to the mass spectrometric radio-frequency power supply circuit of level Four bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720382636.6U CN206992977U (en) | 2017-04-12 | 2017-04-12 | One kind is applied to the mass spectrometric radio-frequency power supply circuit of level Four bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206992977U true CN206992977U (en) | 2018-02-09 |
Family
ID=61391526
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720382636.6U Expired - Fee Related CN206992977U (en) | 2017-04-12 | 2017-04-12 | One kind is applied to the mass spectrometric radio-frequency power supply circuit of level Four bar |
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| CN (1) | CN206992977U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362490A (en) * | 2021-12-30 | 2022-04-15 | 杭州春来科技有限公司 | Quadrupole rod power supply driving circuit |
| WO2022141481A1 (en) * | 2020-12-29 | 2022-07-07 | 广州禾信仪器股份有限公司 | Radio frequency transmission quadrupole rod power source circuit and control method therefor, and power source device |
| RU2809835C2 (en) * | 2020-12-29 | 2023-12-19 | Гуанчжоу Хэсинь Инструмент Ко., Лтд. | Radio frequency quadrupole power supply circuit and control method, power plant |
-
2017
- 2017-04-12 CN CN201720382636.6U patent/CN206992977U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022141481A1 (en) * | 2020-12-29 | 2022-07-07 | 广州禾信仪器股份有限公司 | Radio frequency transmission quadrupole rod power source circuit and control method therefor, and power source device |
| RU2809835C2 (en) * | 2020-12-29 | 2023-12-19 | Гуанчжоу Хэсинь Инструмент Ко., Лтд. | Radio frequency quadrupole power supply circuit and control method, power plant |
| CN114362490A (en) * | 2021-12-30 | 2022-04-15 | 杭州春来科技有限公司 | Quadrupole rod power supply driving circuit |
| CN114362490B (en) * | 2021-12-30 | 2024-05-07 | 杭州春来科技有限公司 | Quadrupole rod power supply driving circuit |
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Granted publication date: 20180209 |