CN105610326A - High-frequency and high-voltage circuit - Google Patents
High-frequency and high-voltage circuit Download PDFInfo
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- CN105610326A CN105610326A CN201410719470.3A CN201410719470A CN105610326A CN 105610326 A CN105610326 A CN 105610326A CN 201410719470 A CN201410719470 A CN 201410719470A CN 105610326 A CN105610326 A CN 105610326A
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Abstract
The invention belongs to the technical field of electronic instruments, and particularly relates to a high-frequency and high-voltage circuit, which can be applied to a mass spectrometer. The circuit comprises control circuits 1, 2 and 3, an isolation circuit 4, a switching circuit 5 and a filter circuit 6, wherein each control circuit is composed of a programmable logic device and a driving amplification circuit; the output end of the amplification circuit is connected with a primary circuit input pin of a differential mode coupled circuit, and a signal is isolated by the differential mode coupled circuit and then transmitted to a secondary circuit; the output pin of the differential mode coupled circuit is connected with the control electrode of a control switch, an external adjustable DC power supply is connected with the input end of the switching circuit via the filter circuit formed by a differential mode inductor and a capacitor, and the output end of the switching circuit is connected with a post-stage load; and under control of the control circuits, the switching circuit outputs a square wave signal with high voltage, the filter circuit filters the inputted DC voltage, and a good square wave signal can be acquired. In comparison with other traditional high-frequency and high-voltage circuits, the duty ratio is adjustable conveniently, a diode is parallelly connected between the drain and the source of an MOS transistor, and safety of the circuit is improved.
Description
Technical field
The invention belongs to electronic instrument technology field, be specifically related to a kind of high-frequency high-voltage circuit.
Background technology
Ionogenicly update the generation of having bred large mass number ion, the problem of simultaneously bringing is exactly the detection of large mass number ion. Traditional ion trap mode of operation is all to realize quality analysis by the scanning to amplitude, for the required scanning voltage of the larger ion of mass number at even several ten thousand volts of volts up to ten thousand, too high voltage brings ion trap electrodes electric discharge, and then damage device, the life security that is even threatening operating personnel. But ion trap frequency sweep mode of operation is compared traditional sine wave and is swept width mode of operation and become more and more and have superiority in this respect, the rectangular wave drive ion trap that it utilizes frequency accurately to control, and by rectangle wave frequency is scanned to realize quality analysis, have that resolution ratio is high, quality analysis scope is wide, be convenient to the advantages such as control. Therefore, utilize high-frequency and high-voltage drive amplification circuit, be applied in the middle of ion trap frequency sweep mode of operation in conjunction with frequency controlable electric current.
Summary of the invention
The present invention, for a kind of high-frequency high-voltage circuit, is made up of control system circuit [1] [2] [3], buffer circuit [4], on-off circuit [5] and filter circuit [6]; Its detailed structure and operation principle are as shown in Figure 1. Wherein:
Control system circuit is made up of PLD and drive amplification chip, it has simple in structure, integrated level advantages of higher, its major function be produce a control circuit that dutycycle is adjustable, and under the cooperation of drive circuit in order to drive the on-off circuit of rear class.
On-off circuit is realized by high pressure resistant, corresponding fast metal-oxide-semiconductor; metal-oxide-semiconductor drain-source interpolar shunt regulator tube connect with capacitance resistance form holding circuit prevent that metal-oxide-semiconductor is breakdown; on-off circuit is connected with control system circuit through differential mode coupling circuit; under the control of control system circuit, realize switch conduction with closed.
The advantages such as buffer circuit couples together prime control system circuit and rear class high-pressure section circuit indirectly, plays the effect of isolation, has corresponding speed fast simultaneously, cheap.
Filter circuit is made up of differential mode inductance and electric capacity; Output waveform filter circuit is formed by the Capacitance parallel connection of different capacitances, and in this invention, the shape of the magnetic core of using is all the magnet ring of high magnetic permeability.
Actual test result shows, a kind of high-frequency high-voltage circuit of being made by the present invention has the output waveform that good peak-to-peak value is high, frequency is high. This high-frequency high-voltage circuit, working condition is good, can be in the middle of ion trap mass spectrometer device.
The invention has the beneficial effects as follows provide that the fluctuation of a kind of output voltage is little, switching response fast, it is low in energy consumption to turn on and off, input stage and rear class high-pressure section isolate through differential mode coupling circuit, indirectly control the dutycycle of output by control system circuit, by regulating direct-flow voltage regulation source amplitude control output peak-to-peak value, realize like this dutycycle of high-frequency high-voltage circuit adjustable.
Brief description of the drawings
Fig. 1: a kind of high-frequency high-voltage circuit structural representation.
Fig. 2: differential mode coupled inductor winding method schematic diagram.
Fig. 3: common mode coupled inductor winding method schematic diagram.
Number in the figure: the 1st, CPLD signal generator parallel circuit, the 2nd, chip power supply partial circuit, the 3rd, drive amplification part, 4 is buffer circuit, and 5 is on-off circuit, and 6 is filter circuit.
10,11 is primary coil L1 and the L2 of differential mode coupled inductor, and 12,13 is secondary coil L3 and the L4 of differential mode coupled inductor, and 14 is the magnetic core of differential mode coupled inductor.
20,21 is primary coil L1 and the L2 of differential mode coupled inductor, and 22,23 is secondary coil L3 and the L4 of differential mode coupled inductor, and 24 is the magnetic core of differential mode coupled inductor.
Detailed description of the invention
PLD can select GAL16V8D or CPLD control chip to realize, and by increasing control end at control chip, realizes dutycycle adjustable.
Drive amplification part can be selected corresponding speed drive amplification chip faster, can select 7104CN.
Buffer circuit can adopt the mode of differential mode coupling to isolate, and concrete winding method can be realized by the mode of enamel-covered wire coiling magnet ring.
On-off circuit is realized by high pressure resistant, corresponding fast metal-oxide-semiconductor, and metal-oxide-semiconductor can select 710,840, STP4NK80Z, STP6NK90Z etc. Metal-oxide-semiconductor drain-source interpolar shunt regulator tube connect with capacitance resistance form holding circuit prevent that metal-oxide-semiconductor is breakdown, on-off circuit is connected with control system circuit through differential mode coupling circuit, under the control of control system circuit, realize switch conduction and closure.
Filter circuit is made up of differential mode inductance and electric capacity, and in this invention, the shape of the magnetic core of using is all the magnet ring of high magnetic permeability.
In the time of this circuit working, produce a frequency stabilization and the adjustable square-wave signal of dutycycle by PLD, and be transferred to drive amplification chip input, by drive amplification chip, signal is amplified.
Drive amplification chip output connects the L1 end of differential mode coupled inductor through resistance capacitance.
The L2 end ground connection of common mode coupled inductor, L3 end is connected to on-off circuit control end. L4 is connected to the output of metal-oxide-semiconductor.
The input of on-off circuit connects the linear regulated power supply of voltage stabilization and current stabilization by filter circuit; output connects rear class load; metal-oxide-semiconductor drain-source interpolar shunt regulator tube connect with capacitance resistance form holding circuit prevent that metal-oxide-semiconductor is breakdown; voltage-stabiliser tube can be selected fast recovery diode, and resistance capacitance is chosen according to actual needs.
The linear regulated power supply input filter circuit of voltage stabilization and current stabilization is connected with high pressure resistant electric capacity by differential mode coupling inductance, concrete connected mode is as follows: the linear regulated power supply input of the voltage stabilization and current stabilization CBB electric capacity that is connected in parallel, CBB electric capacity downlink connection common mode inductance coil input end 20,21 two ends, 22,23 outputs are connected to high-voltage porcelain chip capacitor 104,104 ceramic disc capacitors are parallel-connected to another common mode inductance coil input end, output is parallel-connected to high-voltage porcelain chip capacitor 103, is connected to on-off circuit input after allowing.
In the present invention, the magnet ring of coiling common mode inductance coil and differential mode coupled inductor is all high frequency ferrite magnet ring, and the enamel-covered wire in differential mode coupled inductor is thicker, selects wire diameter 0.71mm, and enamel-covered wire on common mode inductance coil is thinner, selects wire diameter 0.5mm.
Claims (5)
1. a high-frequency high-voltage circuit, comprises control system circuit [1] [2] [3], buffer circuit [4], on-off circuit [5] and filter circuit [6],Control system circuit is directly connected with on-off circuit by differential mode coupling circuit, the linear regulated power supply of external voltage stabilization and current stabilization directly andOn-off circuit is connected, and on-off circuit is conducting or cut-off under the control of control system circuit, output high-voltage square wave signal, filteringCircuit, for the further filtering of square-wave signal to on-off circuit output, produces good square-wave signal. It is characterized in that:The drain-source interpolar shunt regulator tube of each metal-oxide-semiconductor connect with resistance capacitance form holding circuit prevent that metal-oxide-semiconductor from being hitWear, improved security, the reliability of circuit.
2. a kind of high-frequency high-voltage circuit according to claim 1, is characterized in that: control system circuit by programming Control device andDrive amplification chip forms.
3. a kind of high-frequency high-voltage circuit according to claim 1, is characterized in that: buffer circuit adopts differential mode coupled modes.
4. a kind of high-frequency high-voltage circuit according to claim 1, is characterized in that: the leakage of each metal-oxide-semiconductor of on-off circuit-Shunt regulator tube between source electrode.
5. a kind of high-frequency high-voltage circuit according to claim 1, is characterized in that: filter circuit is by two common mode inductances and Nai GaoPressure Capacitance parallel connection forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410719470.3A CN105610326A (en) | 2014-11-24 | 2014-11-24 | High-frequency and high-voltage circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410719470.3A CN105610326A (en) | 2014-11-24 | 2014-11-24 | High-frequency and high-voltage circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105610326A true CN105610326A (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410719470.3A Pending CN105610326A (en) | 2014-11-24 | 2014-11-24 | High-frequency and high-voltage circuit |
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| CN (1) | CN105610326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711010A (en) * | 2016-12-26 | 2017-05-24 | 中国科学技术大学 | Quadrupole guide rod radio frequency power supply circuit of mass spectrometer |
-
2014
- 2014-11-24 CN CN201410719470.3A patent/CN105610326A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711010A (en) * | 2016-12-26 | 2017-05-24 | 中国科学技术大学 | Quadrupole guide rod radio frequency power supply circuit of mass spectrometer |
| CN106711010B (en) * | 2016-12-26 | 2019-01-04 | 中国科学技术大学 | A kind of mass spectrometric quadrupole guide bar radio-frequency power supply circuit |
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Legal Events
| Date | Code | Title | Description |
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| DD01 | Delivery of document by public notice |
Addressee: Huang Wei Document name: Notification of Acceptance of Patent Application |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160525 |