CN106067769A - A kind of power amplifier circuit - Google Patents
A kind of power amplifier circuit Download PDFInfo
- Publication number
- CN106067769A CN106067769A CN201610368879.4A CN201610368879A CN106067769A CN 106067769 A CN106067769 A CN 106067769A CN 201610368879 A CN201610368879 A CN 201610368879A CN 106067769 A CN106067769 A CN 106067769A
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- circuit
- power amplifier
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- gain
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- 230000009977 dual effect Effects 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000037361 pathway Effects 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 15
- ZCJJIQHVZCFSGZ-UHFFFAOYSA-N 2,8-bis(diphenylphosphoryl)dibenzothiophene Chemical compound C=1C=CC=CC=1P(C=1C=C2C3=CC(=CC=C3SC2=CC=1)P(=O)(C=1C=CC=CC=1)C=1C=CC=CC=1)(=O)C1=CC=CC=C1 ZCJJIQHVZCFSGZ-UHFFFAOYSA-N 0.000 claims abstract 17
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Amplifiers (AREA)
Abstract
The present invention proposes a kind of power amplifier circuit, including: electric power management circuit, alarm signal process circuit, dual pathways gain adjusting circuit and interior controlling of amplitude switching circuit；Alarm signal processes the duty of the real-time monitor AMP of circuit；Dual pathways gain adjusting circuit realizes analog/digital dual pathways gain-adjusted；Interior controlling of amplitude switching circuit, wherein the first DPDT electrical switch and the second DPDT electrical switch are by program control signal control, this locality of controlling of amplitude switching circuit/programmed state switching in realizing, power amplifier is not when accessing program control signal, manually control DPDT mechanical switch, it is achieved switching between fixed ampllitude state and open loop situations in power amplifier；If access program control signal, control, by program control signal, the switching that the 3rd DPDT electrical switch and the 4th DPDT electrical switch realize in amplifier between fixed ampllitude state and open loop situations.
Description
Technical field
The present invention relates to microwave regime, particularly to a kind of power amplifier circuit.
Background technology
Power amplifier circuit is the important component part in microwave and millimeter wave power synthetic technique, and its index is good
The bad performance quality on microwave and millimeter wave power synthetic technique has played conclusive impact.Along with radar, communication, electronic countermeasure,
The development of the applications such as navigation and Aero-Space, it is also proposed the highest requirement, no to power amplifier properties
Require nothing more than power amplifier and can have the output of higher power, and require to have interior fixed ampllitude function, i.e. in specific work
In frequency range, output flatness is good, furthermore it is required that realize power amplifier open loop/interior fixed ampllitude state switching merit
Energy, local/program control compatibility function and alert detecting function etc., so the multi-functional power amplifier circuit of high reliability
Develop also ever more important.
Microwave and millimeter wave power amplifier is mainly made up of power module, power amplifier module and this three part of control circuit,
Wherein power module and power amplifier module are as study hotspot, achieve huge achievement in recent years so that microwave and millimeter wave merit
Rate amplifier constantly strides forward towards a hectowatt even kilowatt rank.Meanwhile, in order to tackle such as radar, communication, electronic countermeasure
Various demands with under the different application field complex environments such as Aero-Space, it is also proposed higher to power amplifier circuit
Requirement, do not require nothing more than its normal work that ensure that power module and power amplifier module, but also should have controlling of amplitude merit
Energy, program control compatibility function, alert detecting function etc., thus ensure the safe and reliable operation of whole system.The most both at home and abroad micro-
The control circuit aspect research of ripple millimeter-wave power amplifiers is relatively fewer, and how the common problem run into is by controlling electricity
Road is improved stability and the reliability of power amplifier work and realizes the multiformity of its function.
Current existing power amplifier circuit theory diagram is as it is shown in figure 1, this control circuit mainly includes power supply
Management circuit, power display circuit and gain adjusting circuit.Wherein, the DC voltage that power module is provided by electric power management circuit
Being converted into required bias voltage value, power for driving amplifier, power combiner and blower fan, power display circuit can be by
The detecting circuit signal of directional coupler forward coupling detection output is converted to power signal and shows that the power at amplifier shows
On panel, gain adjusting circuit is then by the manually regulation signal of gain-adjusted knob is converted to gain-adjusted signal, real
The regulation of existing power amplifier output power.The advantage of this circuit is that principle is simple, it is easy to accomplish, but its function singleness, it is only capable of
Enough meet power amplifier under simple environment uses requirement substantially, navigates for radar, communication, electronic countermeasure, navigation and aviation
It etc. relative complex applied environment, the function of this circuit cannot meet its use requirement.
Existing power amplifier circuit principle is simple, function singleness, its shortcoming mainly include following some:
1. this circuit does not have interior fixed ampllitude function, thus cannot be improved the flatness of amplifier output power by circuit,
The output flatness of whole amplifier depends entirely on the performance of power amplifier chips, therefore, wants for output flatness
Seeking higher environment, this circuit is the most applicable.
2. this circuit does not have a programmable function, only supports the manual regulation of amplifier, not only increases use cost, also without
Method meets the highest equipment automatization requirement.
3. this circuit does not have monitoring abnormal state function, and once power amplifier breaks down, it is impossible to pass through alarm signal
Number informing user, more cannot be carried out automatically processing, stability and reliability that system is run are difficult to be guaranteed.
Summary of the invention
In order to solve above technical problem, the present invention devises one and is applicable to microwave and millimeter wave power amplifier, has
High reliability, multi-functional power amplifier circuit.
The technical scheme is that and be achieved in that:
A kind of power amplifier circuit, including: electric power management circuit, alarm signal process circuit, dual pathways gain
Regulation circuit and interior controlling of amplitude switching circuit；
Alarm signal processes circuit and comes in real time by reading overtemperature alarm signal, air-cooled alarm signal and Mismatch alarm signal
The duty of monitor AMP, once reads abnormality, then triggers warning lamp and buzzer circuit, point out user power
Amplifier operation abnormal state；
Dual pathways gain adjusting circuit realizes analog/digital dual pathways gain-adjusted；
Interior controlling of amplitude switching circuit, wherein the first DPDT electrical switch and the second DPDT electrical switch are by journey
Control signal controls, it is achieved this locality of interior controlling of amplitude switching circuit/programmed state switching, power amplifier is not accessing program control letter
Number time, be defaulted as local state, now by Non-follow control DPDT mechanical switch, it is achieved fixed ampllitude state in power amplifier
And the switching between open loop situations；If access program control signal, then DPDT mechanical switch is shielded, now by program control signal
Control the 3rd DPDT electrical switch and the 4th DPDT electrical switch to realize fixed ampllitude state and open loop shape in amplifier
Switching between state.
Alternatively, if not eliminating abnormality within the default time, alarm signal is processed circuit and then can be increased by control
Amplifier gain is adjusted to minimum or directly shuts down by benefit regulation signal, thus realizes the oneself guarantor of amplifier and whole system
Protect.
Alternatively, described dual pathways gain adjusting circuit, under local state, the regulation rotation of user's manually rotation gain
Button regulates the output of power amplifier, it is achieved analog voltage regulates；It is switched under programmed state, then shields gain-adjusted
Knob, is switched to digital signal shaping modes, and now user passes through general switching software interface, carries out power amplifier output power
Remote adjustment.
Alternatively, under local state or programmed state, once power amplifier is switched to interior fixed ampllitude state, by orienting
The forward rectified signal that bonder produces can initially enter dual slope logarithmic amplifying circuit and process, and then passes sequentially through first
DPDT electrical switch, the 3rd DPDT electrical switch or DPDT mechanical switch, interior fixed ampllitude integral loop, the 4th pair
Dpdt double-pole double-throw (DPDT) electrical switch or DPDT mechanical switch and the second DPDT electrical switch, ingoing power modulation circuit,
The gain-adjusted signal of rear generation regulates the flatness of output signal power by the attenuation controlling voltage-controlled attenuator, thus
Realize the interior fixed ampllitude of power amplifier.
The invention has the beneficial effects as follows:
(1) the power amplifier circuit practical function of present invention design is various, and principle is simple, it is easy to accomplish, and energy
Enough it is effectively improved stability and the reliability of power amplifier work；
(2) the interior controlling of amplitude switching circuit of this circuit design, can be easily by a DPDT mechanical switch
Realize the switching between fixed ampllitude state and open loop situations in power amplifier, be effectively increased the flat of power amplifier output power
Smooth degree；
(3) this circuit is mutually compatible with the programmable interface of power amplifier, it is possible to conveniently realize the local/remote of amplifier
Control handoff functionality, reduce use cost, improve intellectuality and the automatization of equipment；
(4) this circuit is compared to traditional circuit, it is achieved that analog/digital dual pathways gain-adjusted function, can not only lead to
The mode crossing manually regulation gain knob regulates the output of power amplifier, and can realize the numeral under programmed state
Signal gain regulates；
(5) this circuit has Warning signal monitoring function, can monitor the duty of power amplifier in real time and with police
Showing that the form of lamp and buzzer informs user, once power amplifier occurs extremely to be capable of automatically processing, and improves greatly
The self-protection ability of amplifier.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the theory diagram of Conventional amplifiers control circuit；
Fig. 2 is the power amplifier circuit theory diagram of the present invention；
Fig. 3 is the interior controlling of amplitude switching circuit theory diagram of the present invention.
Detailed description of the invention
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
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The present invention devises a kind of novel high reliability multi-function power amplifier control circuit, its theory diagram such as Fig. 2
Shown in, this power amplifier circuit 1 mainly includes that electric power management circuit 11, alarm signal process circuit 12, the dual pathways increases
Benefit regulation circuit 13 and interior controlling of amplitude switching circuit 14.
Wherein, electric power management circuit 11 is universal circuit, mainly completes voltage conversion function, for blower fan, driving amplifier
There is provided bias voltage with power combiner, do not repeat.Below in conjunction with the accompanying drawings, the present invention processes circuit to alarm signal
12, dual pathways gain adjusting circuit 13 and interior controlling of amplitude switching circuit 14 describe in detail.
Alarm signal processes the theory diagram of circuit 12 as shown in Figure 2, and alarm signal processes circuit 12 by reading
Temperature alarm signal, air-cooled alarm signal and Mismatch alarm signal carry out the duty of real-time monitor AMP, once read different
When often state, such as temperature be too high, blower fan stall, reflected signal are excessive, then can trigger warning lamp and buzzer circuit 15, prompting
User power amplifier operation abnormal state, if not eliminating abnormality within the default time, alarm signal processes circuit 12
Then amplifier gain can be adjusted to minimum by controlling gain-adjusted signal or directly shut down, thus realize amplifier and whole
The self-protection of individual system.
By designing Warning signal monitoring circuit in circuit, the various warnings of power amplifier complete machine can be monitored in real time
Signal (such as overtemperature alarm, air-cooled warning, Mismatch alarm), and warning lamp and buzzer can be triggered according to alarm signal, prompting is used
Family notes, it may be necessary to automatically takes amplifier gain is adjusted to the minimum or measures such as protection of shutting down, thus greatly carries
The stability of high power amplifier work and reliability.
As shown in Figure 2, this gain adjusting circuit can compatibility two kinds for the theory diagram of dual pathways gain adjusting circuit 13
Different shaping modes, it is achieved analog/digital dual pathways gain-adjusted function.Under local state, user can be manually
Rotation gain adjusting knob regulates the output of power amplifier easily, it is achieved analog voltage regulates；And once switch
Under programmed state, then can automatic shield gain-adjusted knob, be switched to digital signal shaping modes, now user can pass through
General switching software interface, carries out remote adjustment to amplifier output power.
Power amplifier analog/digital dual pathways gain adjusting circuit, under local state, can manually regulate increasing
The mode of benefit adjusting knob regulates the output of amplifier, and once amplifier switches is under programmed state, then amplifier increases
The function of benefit adjusting knob can be shielded, and now can realize the regulation to amplifier output power by programmed digital signal.
The theory diagram of interior controlling of amplitude switching circuit 14 is as it is shown on figure 3, wherein the first DPDT electrical switch 122 He
Second DPDT electrical switch 127 is by program control signal control, it is possible to achieve this locality of interior controlling of amplitude switching circuit 14/program control
State switching performance, amplifier, when not accessing program control signal, is defaulted as local state, now can manually control double-pole
Double-throw mechanical switch 125, realizes the switching between fixed ampllitude state and open loop situations in amplifier easily；If accessing program control letter
Number, then DPDT mechanical switch 125 can be shielded, and no longer works, and is now to control the 3rd double-pole pair by program control signal
Throw electrical switch 123 and the 4th DPDT electrical switch 126 to realize in amplifier between fixed ampllitude state and open loop situations
Switching.Whether, under local state or programmed state, once amplifier switches is to interior fixed ampllitude state, directional coupler produce
Raw forward rectified signal can initially enter dual slope logarithmic amplifying circuit 121 and process, and then passes sequentially through the first double-pole
Pole double throw electronic switch the 122, the 3rd DPDT electrical switch 123 or DPDT mechanical switch 125, interior fixed ampllitude integral loop
124, the 4th DPDT electrical switch 126 or DPDT mechanical switch 125 and the second DPDT electrical switch 127,
Ingoing power modulation circuit 128, the gain-adjusted signal finally produced regulates defeated by the attenuation controlling voltage-controlled attenuator
Go out the flatness of signal power, thus realize the interior fixed ampllitude function of amplifier.
In power amplifier, controlling of amplitude switching circuit is by the DPDT mechanical switch designed in circuit and electronics
ON-OFF control circuit, can not only realize power amplifier freely switching between open loop/interior fixed ampllitude state under local state,
And the interior fixed amplitude circuit that can realize power amplifier is mutually compatible with complete machine programme control circut, i.e. under complete machine programmed state, also
The long-range switching of power amplifier open loop/interior fixed ampllitude state can be realized.
The power amplifier circuit principle of present invention design is simple, it is easy to accomplish, diverse in function and practicality.Wherein,
Interior controlling of amplitude switching circuit is greatly improved the output flatness of power amplifier, and program control compatible circuit makes power put
Big device is provided with remote control function, Warning signal monitoring circuit then achieve the duty of power amplifier monitor in real time and
Self-protection function, function above not only increases stability and the reliability of power amplifier work, also achieves its intelligence
Changing and Automated condtrol, therefore this circuit has huge application potential and wide application prospect.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (4)
1. a power amplifier circuit, it is characterised in that including: electric power management circuit, alarm signal process circuit, double
Channel gain regulation circuit and interior controlling of amplitude switching circuit；
Alarm signal processes circuit and monitors in real time by reading overtemperature alarm signal, air-cooled alarm signal and Mismatch alarm signal
The duty of amplifier, once reads abnormality, then trigger warning lamp and buzzer circuit, and prompting user power is amplified
Device duty is abnormal；
Dual pathways gain adjusting circuit realizes analog/digital dual pathways gain-adjusted；
Interior controlling of amplitude switching circuit, wherein the first DPDT electrical switch and the second DPDT electrical switch are by program control letter
Number control, it is achieved the switching of this locality of interior controlling of amplitude switching circuit/programmed state, power amplifier is not accessing program control signal
Time, be defaulted as local state, now by Non-follow control DPDT mechanical switch, it is achieved in power amplifier fixed ampllitude state and
Switching between open loop situations；If access program control signal, then DPDT mechanical switch is shielded, now by program control signal control
Make the 3rd DPDT electrical switch and the 4th DPDT electrical switch to realize fixed ampllitude state and open loop situations in amplifier
Between switching.
2. power amplifier circuit as claimed in claim 1, it is characterised in that if not eliminating different within the default time
Often state, alarm signal processes circuit and then can be adjusted to minimum by amplifier gain by controlling gain-adjusted signal or directly close
Machine, thus realize the self-protection of amplifier and whole system.
3. power amplifier circuit as claimed in claim 1, it is characterised in that described dual pathways gain adjusting circuit,
Under local state, user's manually rotation gain adjusting knob regulates the output of power amplifier, it is achieved simulation
Voltage-regulation；Be switched under programmed state, then shielding gain-adjusted knob, is switched to digital signal shaping modes, now user
By general switching software interface, power amplifier output power is carried out remote adjustment.
4. power amplifier circuit as claimed in claim 1, it is characterised in that in local state or programmed state
Under, once power amplifier is switched to interior fixed ampllitude state, directional coupler the forward rectified signal produced can initially enter double
Slope logarithmic amplifying circuit processes, and then passes sequentially through the first DPDT electrical switch, the 3rd DPDT electronic cutting
Close or DPDT mechanical switch, interior fixed ampllitude integral loop, the 4th DPDT electrical switch or DPDT mechanical switch with
And the second DPDT electrical switch, ingoing power modulation circuit, the gain-adjusted signal finally produced is by controlling voltage-controlled declining
Subtract the attenuation of device to regulate the flatness of output signal power, thus realize the interior fixed ampllitude of power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610368879.4A CN106067769B (en) | 2016-05-19 | 2016-05-19 | A kind of power amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610368879.4A CN106067769B (en) | 2016-05-19 | 2016-05-19 | A kind of power amplifier circuit |
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| Publication Number | Publication Date |
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| CN106067769A true CN106067769A (en) | 2016-11-02 |
| CN106067769B CN106067769B (en) | 2018-10-30 |
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| CN201610368879.4A Active CN106067769B (en) | 2016-05-19 | 2016-05-19 | A kind of power amplifier circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196617A (en) * | 2017-05-27 | 2017-09-22 | 中国电子科技集团公司第四十研究所 | Intelligent power fixed ampllitude loop and fixed ampllitude method based on dynamic self-adapting algorithm |
| CN107248848A (en) * | 2017-06-08 | 2017-10-13 | 中国电子科技集团公司第五十四研究所 | A kind of EHF frequency ranges High Linear solid-state high power amplifier device |
| CN108055010A (en) * | 2017-12-07 | 2018-05-18 | 中国电子科技集团公司第四十研究所 | A kind of power amplifier mismatch guard loop of quick dynamic self-adapting and guard method |
| CN112462666A (en) * | 2020-12-01 | 2021-03-09 | 成都沃特塞恩电子技术有限公司 | Split type high power source control system and split type high power source |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108055010A (en) * | 2017-12-07 | 2018-05-18 | 中国电子科技集团公司第四十研究所 | A kind of power amplifier mismatch guard loop of quick dynamic self-adapting and guard method |
| CN112462666A (en) * | 2020-12-01 | 2021-03-09 | 成都沃特塞恩电子技术有限公司 | Split type high power source control system and split type high power source |
| CN112462666B (en) * | 2020-12-01 | 2021-11-02 | 成都沃特塞恩电子技术有限公司 | Split type high power source control system and split type high power source |
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| CN106067769B (en) | 2018-10-30 |
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