CN205453642U - Based on MCU control power amplifier offset voltage device - Google Patents
Based on MCU control power amplifier offset voltage device Download PDFInfo
- Publication number
- CN205453642U CN205453642U CN201521109766.XU CN201521109766U CN205453642U CN 205453642 U CN205453642 U CN 205453642U CN 201521109766 U CN201521109766 U CN 201521109766U CN 205453642 U CN205453642 U CN 205453642U
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- China
- Prior art keywords
- circuit
- mcu
- power amplifier
- power
- offset voltage
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Abstract
The utility model relates to a based on MCU control power amplifier offset voltage device, including host computer, MCU circuit, RF radio frequency circuit, comparison operational amplifier and power tube, host computer, MCU circuit, RF radio frequency circuit, comparison operational amplifier and power tube connect gradually, the RF radio frequency circuit is gathered compare the voltage between operational amplifier and the power tube, be provided with filter circuit between MCU circuit and the RF radio frequency circuit. Compared with the prior art, the utility model discloses on -line measuring, automation are regulated and control, measurement accuracy is high, can bear the radio frequency high -power and product stability is good.
Description
Technical field
This utility model relates to transmitter receiver technical field, controls power amplifier offset voltage device particularly to one based on MCU.
Background technology
Radio-frequency power amplifier is widely used in various radio communication transmitting equipment, along with the quick growth of mobile telecommunication service, to low consumption, efficiently, requirement that volume is little also increases sharply.It is known that RF power amplifier (PA) is one of numerous design modules that in radio frequency transmission, power attenuation is maximum.The third generation communication of current development has promoted the renewal to power amplifier, and PA is as the core of communication base station, and its efficiency directly affects the efficiency of whole base station, therefore research and solve the efficiency of power amplifier become current research focus.F class A amplifier A theoretical efficiency can reach 100%.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of on-line checking, auto-control, certainty of measurement is high, can bear RF high power and product stability is good controls power amplifier offset voltage device based on MCU.
The technical scheme that this utility model solves above-mentioned technical problem is as follows: a kind of based on MCU control power amplifier offset voltage device, including host computer, MCU circuit, RF radio circuit, comparator/operational amplifier and power tube, described host computer, MCU circuit, RF radio circuit, comparator/operational amplifier and power tube are sequentially connected with, described RF radio circuit gathers the voltage between described comparator/operational amplifier and power tube, is provided with filter circuit between described MCU circuit and RF radio circuit.
Further, described host computer includes writing frequency line, DC source and computer, and described computer is connected with described MCU circuit by writing frequency line, and described DC source is connected with described computer.
Further, described RF radio circuit is RF radio frequency chip RDA1846.
Further, described RF radio circuit includes digital analog converter, voltage controlled oscillator, voltage acquisition unit and Power Management Unit, described digital analog converter, voltage controlled oscillator, voltage acquisition unit and Power Management Unit are sequentially connected in series, and described digital analog converter is connected with described MCU circuit.
Further, described power tube is N-channel MOS tube power amplifier.
The beneficial effects of the utility model are: by host computer, MCU circuit and RF radio circuit coordinate operation, voltage between comparator/operational amplifier and power tube is carried out real-time monitoring, realize intelligent management, work online, control accuracy is high, reduce energy consumption, can bear RF high power and product stability is good.
Accompanying drawing explanation
Fig. 1 is a kind of module frame chart controlling power amplifier offset voltage device based on MCU of this utility model；
Fig. 2 is the module frame chart of RF radio circuit.
In accompanying drawing, the list of parts representated by each label is as follows:
1, host computer, 11, DC source, 12, computer；
2, MCU circuit；
3, RF radio circuit, 31, digital analog converter, 32, voltage controlled oscillator, 33, voltage acquisition unit, 34, Power Management Unit；
4, comparator/operational amplifier, 5, power tube, 6, filter circuit.
Detailed description of the invention
Being described principle of the present utility model and feature below in conjunction with accompanying drawing, example is served only for explaining this utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of based on MCU control power amplifier offset voltage device, including host computer 1, MCU circuit 2, RF radio circuit 3, comparator/operational amplifier 4 and power tube 5, described host computer 1, MCU circuit 2, RF radio circuit 3, comparator/operational amplifier 4 and power tube 5 are sequentially connected with, described RF radio circuit 3 gathers the voltage between described comparator/operational amplifier 4 and power tube 5, is provided with filter circuit 6 between described MCU circuit 2 and RF radio circuit 3.
Voltage between comparator/operational amplifier 4 and power tube 5 is detected by the RF radio circuit 3 of the present embodiment, and generate frequency signal, circuit 6 is filtered transmission to MCU circuit 2 after filtering, transmitted to host computer 1 by MCU circuit 2, host computer 1 generates adjustment signal according to frequency signal, by MCU circuit 2, filter circuit 6 and RF radio circuit 3 transmits to comparator/operational amplifier 4, realize the voltage between comparator/operational amplifier and power tube is carried out real-time monitoring, intelligent management, control accuracy is high, reduce energy consumption, RF high power can be born and product stability is good.
Preferably, described host computer 1 includes writing frequency line, DC source 11 and computer 12, and described computer 12 is connected with described MCU circuit 2 by writing frequency line, and described DC source 11 is connected with described computer 12.
Frequency signal transmission to computer 12, computer 12 are generated adjustment signal according to frequency signal by MCU circuit 2 by the frequency line of writing of the present embodiment, and adjustment signal transmits to MCU circuit 2, stable signal transmission through writing frequency line, and regulation and control are fast；DC source 11 is powered for computer 12, and the running of this device is more stable.
Preferably, described RF radio circuit 3 is RF radio frequency chip RDA1846.
Preferably, as shown in Figure 2, described RF radio circuit 3 includes digital analog converter 31, voltage controlled oscillator 32, voltage acquisition unit 33 and Power Management Unit 34, described digital analog converter 31, voltage controlled oscillator 32, voltage acquisition unit 33 and Power Management Unit 34 are sequentially connected in series, and described digital analog converter 31 is connected with described MCU circuit 2.
The voltage acquisition unit 33 of the present embodiment is used for gathering voltage signal, voltage controlled oscillator 32 generates the frequency signal of corresponding relation according to voltage signal, digital analog converter 31 is simulated signal conversion, promotion signal treatment effeciency to frequency signal, it is ensured that frequency signal regulation is precisely.
Preferably, described power tube 5 is N-channel MOS tube power amplifier.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (5)
1. one kind controls power amplifier offset voltage device based on MCU, it is characterized in that: include host computer (1), MCU circuit (2), RF radio circuit (3), comparator/operational amplifier (4) and power tube (5), described host computer (1), MCU circuit (2), RF radio circuit (3), comparator/operational amplifier (4) and power tube (5) are sequentially connected with, described RF radio circuit (3) gathers the voltage between described comparator/operational amplifier (4) and power tube (5), is provided with filter circuit (6) between described MCU circuit (2) and RF radio circuit (3).
A kind of based on MCU control power amplifier offset voltage device, it is characterized in that: described host computer (1) includes writing frequency line, DC source (11) and computer (12), described computer (12) is connected with described MCU circuit (2) by writing frequency line, and described DC source (11) is connected with described computer (12).
It is a kind of based on MCU control power amplifier offset voltage device, it is characterised in that: described RF radio circuit (3) is RF radio frequency chip RDA1846.
A kind of based on MCU control power amplifier offset voltage device, it is characterized in that: described RF radio circuit (3) includes digital analog converter (31), voltage controlled oscillator (32), voltage acquisition unit (33) and Power Management Unit (34), described digital analog converter (31), voltage controlled oscillator (32), voltage acquisition unit (33) and Power Management Unit (34) are sequentially connected in series, and described digital analog converter (31) is connected with described MCU circuit (2).
5. control power amplifier offset voltage device according to a kind of described in any one of Claims 1-4 based on MCU, it is characterised in that: described power tube (5) is N-channel MOS tube power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521109766.XU CN205453642U (en) | 2015-12-28 | 2015-12-28 | Based on MCU control power amplifier offset voltage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521109766.XU CN205453642U (en) | 2015-12-28 | 2015-12-28 | Based on MCU control power amplifier offset voltage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205453642U true CN205453642U (en) | 2016-08-10 |
Family
ID=56571482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521109766.XU Expired - Fee Related CN205453642U (en) | 2015-12-28 | 2015-12-28 | Based on MCU control power amplifier offset voltage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205453642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453722A (en) * | 2017-06-12 | 2017-12-08 | 合肥市汤诚集成电路设计有限公司 | Charge pump is adaptively boosted F class power amplifiers |
-
2015
- 2015-12-28 CN CN201521109766.XU patent/CN205453642U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453722A (en) * | 2017-06-12 | 2017-12-08 | 合肥市汤诚集成电路设计有限公司 | Charge pump is adaptively boosted F class power amplifiers |
| CN107453722B (en) * | 2017-06-12 | 2022-02-08 | 合肥市汤诚集成电路设计有限公司 | Self-adaptive boosting F-type power amplifier of charge pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20181228 |