CN206041942U - Solid -state radio frequency generator - Google Patents
Solid -state radio frequency generator Download PDFInfo
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- CN206041942U CN206041942U CN201621090951.3U CN201621090951U CN206041942U CN 206041942 U CN206041942 U CN 206041942U CN 201621090951 U CN201621090951 U CN 201621090951U CN 206041942 U CN206041942 U CN 206041942U
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Abstract
The utility model provides a solid -state radio frequency generator belongs to radio frequency technical field. This solid -state radio frequency generator includes voltage controlled oscillator unit, preceding stage excitation unit, back level power amplifier unit, power detection unit and radio frequency load unit, the signal output part of voltage controlled oscillator unit with preceding stage excitation unit's signal input part links to each other, preceding stage excitation unit's signal output part with back level power amplifier unit's signal input part links to each other, back level power amplifier unit's signal output part with power detection unit's signal input part links to each other, power detection unit's signal output part with radio frequency load unit's signal input part links to each other. Solid -state radio frequency generator owing to have only a set of power amplifier unit, the process that power distribution and power synthesize has been left out in the event to effectively reduce rf generator's the debugging degree of difficulty, reduced rf generator to the volume.
Description
Technical field
The present invention relates to a kind of solid-state radio frequency generator, belongs to radio frequency arts.
Background technology
Icp mses/spectrogrph is a kind of new analytical technology, can quickly while detection cycle
Nearly all element on table, becomes generally acknowledged most strong elementary analysiss means.The each of national economy is widely used at present
Individual field.
Radio-frequency signal generator adopts two kinds of forms of auto-excitation type and independent-excited at present.Conventional independent-excited radio-frequency signal generator such as Fig. 1
Shown, which adopts power divider to promote independent four group power model unit output respectively, then again by independent 4 groups
Power model unit is synthesized by power combiner.But the independent-excited radio-frequency signal generator needs to debug power divider respectively simultaneously singly
Each power model unit is solely debugged, is exported to the power phase as far as possible of each power model unit in order to power divider
Together, it is to avoid affect the performance of power model unit.And as the device of the sharp formula radio-frequency signal generator is excessively carrying out failure inspection
When looking into, each device need to be investigated respectively and be repaired, therefore maintenance speed is slow and difficulty is big.
With the development of analytical tool, inductively-coupled plasma spectrometer and icp mses are obtained
Extensively apply.For the requirement more and more higher of the important component part radio-frequency signal generator in such analytical tool, to power output
Requirement more and more higher, its stability and reliability it is most important to the quality of the measurement result of instrument.
The content of the invention
The present invention proposes a kind of solid-state radio frequency generator, is to solve the debugging efficiency that existing radiofrequency launcher is present
The problem that low, malfunction elimination speed is slow and fault repair difficulty is big, is that this present invention is adopted the following technical scheme that：
A kind of solid-state radio frequency generator, it is characterised in that including voltage controlled oscillator unit, prime exciting unit, rear class power
Amplifying unit, power detecting unit and rf load unit；The signal output part of the voltage controlled oscillator unit is swashed with the prime
The signal input part for encouraging unit is connected, the letter of the signal output part of the prime exciting unit and the rear class power amplification unit
Number input is connected, the signal output part of the rear class power amplification unit and the signal input part phase of the power detecting unit
Even, the signal output part of the power detecting unit is connected with the signal input part of the rf load unit.
The beneficial effects of the utility model are：Solid-state radio frequency generator is due to there was only one group of power amplification unit, therefore omits
The process of power distribution and power combing, so as to effectively reduce the debugging difficulty of radio-frequency signal generator, reduces radio-frequency signal generator
To volume.
Description of the drawings
Fig. 1 is the structural representation of existing independent-excited radio-frequency signal generator.
Fig. 2 is the structural representation of a solid-state radio frequency generator described in the utility model.
Fig. 3 is the structural representation of another solid-state radio frequency generator described in the utility model.
Fig. 4 is the electrical block diagram of power amplifying part in solid-state radio frequency generator described in the utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
With reference to shown in Fig. 2, the solid-state radio frequency generator that this specific embodiment is provided includes voltage controlled oscillator unit 21, prime
Exciting unit 22, rear class power amplification unit 23, power detecting unit 24 and rf load unit 25；The voltage controlled oscillator unit
21 signal output part is connected with the signal input part of the prime exciting unit 22, and the signal of the prime exciting unit 22 is defeated
Go out end to be connected with the signal input part of the rear class power amplification unit 23, the signal output of the rear class power amplification unit 23
End is connected with the signal input part of the power detecting unit 24, and the signal output part of the power detecting unit 24 is penetrated with described
The signal input part of frequency load unit 25 is connected.
Optionally, as shown in figure 3, the solid-state radio frequency generator that this specific embodiment is provided also includes control unit 31,
The signal input part of described control unit 31 is connected with the collection terminal of the power detecting unit 24, the letter of described control unit 31
Number outfan is connected with the control end of the prime exciting unit 22.
Specifically, voltage controlled oscillator unit 21 can produce the frequency signal of 27.12MHz or 40.68MHz, premenstrual level excitation
The pumping signal Jing rear class power amplification unit 23 that unit 22 is exported after carrying out prime power amplification carries out power amplification, and maximum can
Output 1600W, output Jing power detecting unit 24 is connected to matching box, and output is coupled to by matching box to be penetrated
On frequency load unit 25.Further, control unit 31 is single by gathering the signal in power detecting unit 24, control prime excitation
The pumping signal of 22 output of unit, so that the load of rf load unit 25 obtains stable power.
As shown in figure 4, in solid-state radio frequency generator, the rear class power amplification unit 23 is using two groups of on off states
Power tube, the power tube of every group of on off state are composed in parallel by 2 field effect transistor, constitute the working method of class D amplifier.
Under this mode, whole solid-state radio frequency generator work efficiency is not less than 75%, and enhances radio frequency amplifier antireflection ability,
The temperature rise of each field effect transistor is reduced effectively, generally, junction temperature and the reliability exponent function relation of transistor, junction temperature rise
10%, reliability lifts 50%, enhances the reliability of radio-frequency signal generator.
In this specific embodiment, solid state RF amplifier operation flow process is：The signal of the fixed frequency produced by crystal oscillator is put
After big, Jing transmission transformers carry out impedance transformation to drive two groups of field effect transistor N1, N2, N3, N4；Power vd D and resistance R1, R2,
R3 and R4 and diode D1 and D2 composition biasing circuit, are that rear class power amplification unit 23 provides bias voltage；Transmission transformation
The signal that prime exciting unit 22 is exported by device T1 drives rear class power amplification unit 23, and the work(that will amplify through impedance transformation
Rate is carried out after impedance conversion via transmission transformer T2 again, by 50 Ohm transmission cables, the power inspection constituted via bonder
Survey unit 24 to be transmitted directly on the loading coil of matching box.Due to losing few in power transmission process, therefore solid state RF
The exportable power 1600W of generator, and under the control of control unit 31 between 600W to 1600W continuously adjustabe.This work(
The rate way of output eliminates power distributing unit and power combing unit in existing independent-excited radio-frequency signal generator so that this
The volume-diminished of the generator of mode more than 1/3, effectively reduces the debugging difficulty of radio-frequency signal generator, and failture evacuation is also relative
Simply.
Control unit 31 can also monitor some status signals on radio-frequency signal generator simultaneously, and temperature upper limit is examined
Survey, when temperature is too high, panel directly cuts off pumping signal, makes power without output, so as to carry out to solid-state radio frequency generator
Protection, power amplifying part employ Water-cooling circulating, the heat that power amplifier board sheds can be made to scatter rapidly, it is ensured that rear class power
Amplifying unit 23 works at a lower temperature, greatly enhances the reliability of radio-frequency signal generator.
The above, preferably specific embodiment only of the invention, these specific embodiments are all based on the present invention
Different implementations under general idea, and protection scope of the present invention is not limited thereto, it is any to be familiar with the art
Technical staff the invention discloses technical scope in, the change or replacement that can be readily occurred in, should all cover the present invention
Within protection domain.Therefore, protection scope of the present invention should be defined by the protection domain of claims.
Claims (3)
1. a kind of solid-state radio frequency generator, it is characterised in that put including voltage controlled oscillator unit, prime exciting unit, rear class power
Big unit, power detecting unit and rf load unit；The signal output part of the voltage controlled oscillator unit is encouraged with the prime
The signal input part of unit is connected, the signal of the signal output part of the prime exciting unit and the rear class power amplification unit
Input is connected, the signal output part of the rear class power amplification unit and the signal input part phase of the power detecting unit
Even, the signal output part of the power detecting unit is connected with the signal input part of the rf load unit.
2. solid-state radio frequency generator according to claim 1, it is characterised in that the solid-state radio frequency generator also includes control
Unit processed, the signal input part of described control unit are connected with the collection terminal of the power detecting unit, described control unit
Signal output part is connected with the control end of the prime exciting unit.
3. solid-state radio frequency generator according to claim 1, it is characterised in that the rear class power amplification unit adopts two
The power tube of group on off state, the power tube of every group of on off state are composed in parallel by two field effect transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621090951.3U CN206041942U (en) | 2016-09-28 | 2016-09-28 | Solid -state radio frequency generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621090951.3U CN206041942U (en) | 2016-09-28 | 2016-09-28 | Solid -state radio frequency generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206041942U true CN206041942U (en) | 2017-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621090951.3U Active CN206041942U (en) | 2016-09-28 | 2016-09-28 | Solid -state radio frequency generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108845168A (en) * | 2018-07-10 | 2018-11-20 | 四川九洲电器集团有限责任公司 | A kind of debugging instrument and debugging platform and the adjustment method based on the debugging instrument |
-
2016
- 2016-09-28 CN CN201621090951.3U patent/CN206041942U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108845168A (en) * | 2018-07-10 | 2018-11-20 | 四川九洲电器集团有限责任公司 | A kind of debugging instrument and debugging platform and the adjustment method based on the debugging instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170922 Address after: 102200 No. 9, life road, Beijing, Changping District Patentee after: BEIJING BOHUI INNOVATION TECHNOLOGY Co.,Ltd. Address before: 102206 No. 9, life road, Beijing, Changping District Patentee before: Beijing Ruiguang Instrument Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 102206 9 life Garden Road, Changping District, Beijing Patentee after: BEIJING BOHUI INNOVATION BIOTECHNOLOGY Co.,Ltd. Address before: 102200 9 life Garden Road, Changping District, Beijing Patentee before: BEIJING BOHUI INNOVATION TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102206 9 life Garden Road, Changping District, Beijing Patentee after: Beijing Bohui innovative biotechnology group Co.,Ltd. Address before: 102206 9 life Garden Road, Changping District, Beijing Patentee before: BEIJING BOHUI INNOVATION BIOTECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |