CN109639247B - Monitoring control system and method for output power of radio frequency power amplifier - Google Patents
Monitoring control system and method for output power of radio frequency power amplifier Download PDFInfo
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- CN109639247B CN109639247B CN201811517771.2A CN201811517771A CN109639247B CN 109639247 B CN109639247 B CN 109639247B CN 201811517771 A CN201811517771 A CN 201811517771A CN 109639247 B CN109639247 B CN 109639247B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001276 controlling effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a monitoring control system and a method for output power of a radio frequency power amplifier, wherein the monitoring control system comprises a radio frequency coupler, a temperature sensor, a current sensor and a control unit; the radio frequency coupler detects real-time output power, the temperature sensor detects real-time working temperature, and the current sensor detects real-time working current; the control unit is pre-stored with statistical output power, statistical working temperature and statistical working current corresponding to the target output power; the control unit calculates a set output power required to achieve the target output power according to the parameters, and adjusts the output power of the radio frequency power amplifier to the set output power. The invention realizes three-loop control by adding the current loop and the temperature loop and combining the power loop to control the output power of the radio frequency power amplifier, thereby being capable of precisely controlling the output power of the radio frequency power amplifier, increasing the reliability of products and prolonging the service life of the products.
Description
Technical Field
The present invention relates to power control of a radio frequency power amplifier, and in particular, to a system and a method for monitoring and controlling output power of a radio frequency power amplifier.
Background
The prior art only collects output power for controlling a radio frequency power amplifier (RF PA), and the output power of the radio frequency power amplifier is directly regulated when the output power is found to be inaccurate by using a single loop of power feedback, and the main risk is that if the temperature and the current of the radio frequency power amplifier exceed the design range of a system, the radio frequency power amplifier can be directly caused to malfunction and lose functions, and the reliability and the service life of a product are reduced only by controlling inaccuracy of the single loop of the output power.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, only single loop control of output power is adopted for a radio frequency power amplifier, so that control is inaccurate, and reliability and service life of a product are reduced.
The invention solves the technical problems by the following technical scheme:
the invention provides a monitoring control system of output power of a radio frequency power amplifier, which comprises a radio frequency coupler, a temperature sensor, a current sensor and a control unit, wherein the temperature sensor is connected with the radio frequency coupler;
the temperature sensor is used for detecting the real-time working temperature of the radio-frequency power amplifier and transmitting the real-time working temperature to the control unit, and the current sensor is used for detecting the real-time working current of the radio-frequency power amplifier and transmitting the real-time working current to the control unit;
the control unit is pre-stored with statistical output power, statistical working temperature and statistical working current corresponding to the target output power of the radio frequency power amplifier;
the control unit is used for calculating the set output power required by the target output power according to the real-time output power, the real-time working temperature, the real-time working current, the statistical output power, the statistical working temperature and the statistical working current;
the control unit is also used for adjusting the output power of the radio frequency power amplifier to the set output power.
Preferably, the target output power is divided into a plurality of gears;
for the target output power of each gear, the control unit is used for counting the output power, the working temperature and the working current of the plurality of radio frequency power amplifiers when working under the target output power, and calculating an average value to obtain the counted output power, the counted working temperature and the counted working current.
Preferably, the control unit is configured to calculate the set output power according to the following formula:
P set ＝[K*P n /P read +L*I n /I read +M*T n /T read ]*P target
wherein K represents a power coefficient, P set Representing the set output power, P n Representing the statistical output power, P read Representing the real-time output power, L representing the current coefficient, I n Representing the statistical operating current, I read The real timeOperating current, M represents temperature coefficient, T n Representing the statistical operating temperature, T read Representing the real-time working temperature, P target Representing the target output power.
Preferably, K, L, M has a value in the range of 0.01 to 0.5.
Preferably, the monitoring control system further comprises a radio frequency transceiver, and the control unit is used for adjusting the output power of the radio frequency power amplifier to the set output power through the radio frequency transceiver.
The invention also provides a monitoring control method of the output power of the radio frequency power amplifier, which is realized by the monitoring control system, and the monitoring control method comprises the following steps:
s1, pre-storing statistical output power, statistical working temperature and statistical working current corresponding to target output power of the radio frequency power amplifier in the control unit;
s2, detecting real-time output power of the radio-frequency power amplifier through the radio-frequency coupler, transmitting the real-time output power to the control unit, detecting real-time working temperature of the radio-frequency power amplifier through the temperature sensor, transmitting the real-time working temperature to the control unit, and detecting real-time working current of the radio-frequency power amplifier through the current sensor and transmitting the real-time working current to the control unit;
s3, the control unit calculates set output power required by the target output power according to the real-time output power, the real-time working temperature, the real-time working current, the statistical output power, the statistical working temperature and the statistical working current;
and S4, the control unit adjusts the output power of the radio frequency power amplifier to the set output power.
Preferably, step S1 specifically includes:
s11, dividing the target output power into a plurality of gears;
s12, counting the output power, the working temperature and the working current of a plurality of radio frequency power amplifiers when working under the target output power for the target output power of each gear, and calculating an average value to obtain the counted output power, the counted working temperature and the counted working current;
s13, storing the statistical output power, the statistical working temperature and the statistical working current corresponding to the target output power of each gear.
Preferably, in step S3, the control unit calculates the set output power according to the following formula:
P set ＝[K*P n /P read +L*I n /I read +M*T n /T read ]*P target
wherein K represents a power coefficient, P set Representing the set output power, P n Representing the statistical output power, P read Representing the real-time output power, L representing the current coefficient, I n Representing the statistical operating current, I read The real-time working current, M represents the temperature coefficient, T n Representing the statistical operating temperature, T read Representing the real-time working temperature, P target Representing the target output power.
Preferably, K, L, M has a value in the range of 0.01 to 0.5.
Preferably, the monitoring control system further includes a radio frequency Transceiver (RF Transceiver), and the control unit adjusts the output power of the radio frequency power amplifier to the set output power through the radio frequency Transceiver in step S4.
The invention has the positive progress effects that: the invention realizes three-loop control by adding the current loop and the temperature loop and combining the power loop to control the output power of the radio frequency power amplifier, thereby being capable of precisely controlling the output power of the radio frequency power amplifier, increasing the reliability of products and prolonging the service life of the products.
Drawings
Fig. 1 is a schematic block diagram of a monitoring control system for output power of a radio frequency power amplifier according to a preferred embodiment of the present invention.
Fig. 2 is a flowchart of a method for monitoring and controlling the output power of the rf power amplifier according to a preferred embodiment of the invention.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1, the monitoring and controlling system of the output power of the radio frequency power amplifier of the present invention comprises a radio frequency coupler 1, a temperature sensor 2, a current sensor 3, a control unit 4 and a radio frequency transceiver 5; the control unit 4 is electrically connected with the radio frequency coupler 1, the temperature sensor 2, the current sensor 3 and the radio frequency transceiver 5 respectively, the radio frequency coupler 1, the current sensor 3 and the radio frequency transceiver 5 are electrically connected with the radio frequency power amplifier respectively, and the temperature sensor 2 is arranged on the radio frequency power amplifier;
the radio frequency coupler 1 is used for detecting the real-time output power of the radio frequency power amplifier and transmitting the real-time output power to the control unit 4, the temperature sensor 2 is used for detecting the real-time working temperature of the radio frequency power amplifier and transmitting the real-time working temperature to the control unit 4, and the current sensor 3 is used for detecting the real-time working current of the radio frequency power amplifier and transmitting the real-time working current to the control unit 4;
the control unit 4 is pre-stored with a statistical output power, a statistical working temperature and a statistical working current corresponding to a target output power of the radio frequency power amplifier, and specifically, the target output power is divided into a plurality of gears; for the target output power of each gear, the control unit 4 is configured to count the output powers, the operating temperatures, and the operating currents of the plurality of rf power amplifiers when the plurality of rf power amplifiers operate at the target output powers, and calculate average values to obtain the counted output powers, the counted operating temperatures, and the counted operating currents.
Referring specifically to table 1, the target output power of the rf power amplifier may be specifically divided into 6 gear positions, where the target output power is the output power that the rf power amplifier is expected to reach initially, but if the initial output power of the rf power amplifier is set to be a certain target output power, during actual operation, the output power of the rf power amplifier when operating is not the target output power but is a certain deviation from the target output power due to the influence of various factors, for example, assuming that the initially set target output power is 17dBm and the output power of the rf power amplifier when operating may be 17.5dBm, 17.8dBm, 16.5dBm, so that the control unit counts the output powers of a plurality of rf power amplifiers when operating at a certain target output power, and further takes an average value as a statistical output power, so as to characterize the actual output power of a general rf power amplifier when operating at a certain target output power, and thus find the deviation of the target output power and the actual output power; similarly, the control unit may also count the statistical working temperature and the statistical working current;
TABLE 1
The control unit is used for calculating the set output power required by the target output power according to the real-time output power, the real-time working temperature, the real-time working current, the statistical output power, the statistical working temperature and the statistical working current; the specific calculation formula is as follows:
P set ＝[K*P n /P read +L*I n /I read +M*T n /T read ]*P target
wherein K represents a power coefficient, P set Representing the set output power, P n Representing the statistical output power, P read Representing the real-time output power, L representing the current coefficient, I n Representing the statistical operating current, I read The real-time working current, M represents the temperature coefficient, T n Representing the statistical operating temperature, T read Representing the real-time working temperature, P target Representing the target output power;
wherein, the value range of K, L, M is 0.01-0.5, and specific values can be set according to actual needs.
Thus, for example, the target output power P to be achieved by the RF power amplifier target 17dBm, and the real-time output power P of the RF power amplifier is detected at this time read At a real-time working temperature T of 16dBm read 79 ℃ and real-time working current I read 525mA; and according to Table 1, it can be found that the target output power is 17dBm, the corresponding statistical output power P n Is 17.15, and the working temperature T is counted n Counting the working current I at 81 DEG C n At 545mA, the set output power P can be calculated according to the above formula assuming that K is 0.25, L is 0.34, and M is 0.42 set 17.86dBm;
the control unit 4 is further configured to adjust the output power of the rf power amplifier to the set output power, that is, to adjust the output power to 17.86dBm, so that the final output power of the rf power amplifier can reach the range of the target output power by combining the effect of the operating current and the operating temperature on the rf power amplifier through the operation of the rf power amplifier, and can reach 17dbm±1dBm basically in consideration of the error effect.
The control unit 4 may specifically adjust the output power of the rf power amplifier to the set output power through the rf transceiver 5.
As shown in fig. 2, the invention further provides a method for monitoring and controlling the output power of the radio frequency power amplifier, which is implemented by using the monitoring and controlling system of the radio frequency power amplifier, and the monitoring and controlling method comprises the following steps:
102, detecting the real-time output power of the radio frequency power amplifier through the radio frequency coupler, transmitting the real-time output power to the control unit, detecting the real-time working temperature of the radio frequency power amplifier through the temperature sensor, transmitting the real-time working temperature to the control unit, and detecting the real-time working current of the radio frequency power amplifier through the current sensor, and transmitting the real-time working current to the control unit;
step 1011, dividing the target output power into a plurality of gears;
step 1012, counting output power, working temperature and working current of a plurality of radio frequency power amplifiers when working under the target output power for the target output power of each gear, and calculating an average value to obtain the counted output power, counted working temperature and counted working current;
step 1013, store the statistical output power, statistical working temperature and statistical working current corresponding to the target output power of each gear.
And in step 103, the control unit calculates the set output power according to the following formula:
P set ＝[K*P n /P read +L*I n /I read +M*T n /T read ]*P target
wherein K represents a power coefficient, P set Representing the set output power, P n Representing the statistical output power, P read Representing the real-time output power, L representing the current coefficient, I n Representing the statistical operating current, I read The real-time working current, M represents the temperature coefficient, T n Representing the statistical operating temperature, T read Representing the real-time working temperature, P target Representing the target outputPower.
Wherein, the value range of K, L, M is 0.01-0.5, and specific values can be set according to actual needs.
In the implementation process of the present invention, the control unit may adjust the output power of the rf power amplifier to the set output power through the rf transceiver in step 104.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (9)
1. The monitoring control system of the output power of the radio frequency power amplifier is characterized by comprising a radio frequency coupler, a temperature sensor, a current sensor and a control unit;
the temperature sensor is used for detecting the real-time working temperature of the radio-frequency power amplifier and transmitting the real-time working temperature to the control unit, and the current sensor is used for detecting the real-time working current of the radio-frequency power amplifier and transmitting the real-time working current to the control unit;
the control unit is pre-stored with statistical output power, statistical working temperature and statistical working current corresponding to the target output power of the radio frequency power amplifier;
the control unit is used for calculating the set output power required by the target output power according to the real-time output power, the real-time working temperature, the real-time working current, the statistical output power, the statistical working temperature and the statistical working current;
the control unit is also used for adjusting the output power of the radio frequency power amplifier to the set output power;
the control unit is used for calculating the set output power according to the following formula:
P set ＝[K*P n /P read +L*I n /I read +M*T n /T read ]*P target
wherein K represents a power coefficient, P set Representing the set output power, P n Representing the statistical output power, P read Representing the real-time output power, L representing the current coefficient, I n Representing the statistical operating current, I read The real-time working current, M represents the temperature coefficient, T n Representing the statistical operating temperature, T read Representing the real-time working temperature, P target Representing the target output power.
2. The system for monitoring and controlling the output power of a radio frequency power amplifier according to claim 1, wherein the target output power is divided into a plurality of shift stages;
for the target output power of each gear, the control unit is used for counting the output power, the working temperature and the working current of the plurality of radio frequency power amplifiers when working under the target output power, and calculating an average value to obtain the counted output power, the counted working temperature and the counted working current.
3. The system for monitoring and controlling the output power of a radio frequency power amplifier according to claim 1, wherein K, L, M has a value in the range of 0.01 to 0.5.
4. The system of claim 1, further comprising a radio frequency transceiver, wherein the control unit is configured to adjust the output power of the radio frequency power amplifier to the set output power via the radio frequency transceiver.
5. A method for monitoring and controlling the output power of a radio frequency power amplifier, which is realized by the monitoring and controlling system according to claim 1, the method comprising the steps of:
s1, pre-storing statistical output power, statistical working temperature and statistical working current corresponding to target output power of the radio frequency power amplifier in the control unit;
s2, detecting real-time output power of the radio-frequency power amplifier through the radio-frequency coupler, transmitting the real-time output power to the control unit, detecting real-time working temperature of the radio-frequency power amplifier through the temperature sensor, transmitting the real-time working temperature to the control unit, and detecting real-time working current of the radio-frequency power amplifier through the current sensor and transmitting the real-time working current to the control unit;
s3, the control unit calculates set output power required by the target output power according to the real-time output power, the real-time working temperature, the real-time working current, the statistical output power, the statistical working temperature and the statistical working current;
and S4, the control unit adjusts the output power of the radio frequency power amplifier to the set output power.
6. The method for monitoring and controlling the output power of a radio frequency power amplifier according to claim 5, wherein step S1 specifically comprises:
s11, dividing the target output power into a plurality of gears;
s12, counting the output power, the working temperature and the working current of a plurality of radio frequency power amplifiers when working under the target output power for the target output power of each gear, and calculating an average value to obtain the counted output power, the counted working temperature and the counted working current;
s13, storing the statistical output power, the statistical working temperature and the statistical working current corresponding to the target output power of each gear.
7. The method of monitoring and controlling output power of a radio frequency power amplifier according to claim 5, wherein the control unit calculates the set output power according to the following formula in step S3:
P set ＝[K*P n /P read +L*I n /I read +M*T n /T read ]*P target
wherein K represents a power coefficient, P set Representing the set output power, P n Representing the statistical output power, P read Representing the real-time output power, L representing the current coefficient, I n Representing the statistical operating current, I read The real-time working current, M represents the temperature coefficient, T n Representing the statistical operating temperature, T read Representing the real-time working temperature, P target Representing the target output power.
8. The method of claim 7, wherein K, L, M is provided in a range of 0.01 to 0.5.
9. The method according to claim 5, wherein the monitoring control system further comprises a radio frequency transceiver, and the control unit adjusts the output power of the radio frequency power amplifier to the set output power through the radio frequency transceiver in step S4.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1051324A (en) * | 1996-07-30 | 1998-02-20 | Matsushita Electric Works Ltd | Transmission power control system |
| US6549071B1 (en) * | 2000-09-12 | 2003-04-15 | Silicon Laboratories, Inc. | Power amplifier circuitry and method using an inductance coupled to power amplifier switching devices |
| CN103401517A (en) * | 2013-08-15 | 2013-11-20 | 杭州威力克通信系统有限公司 | Radio frequency power amplifier system |
| CN107370464A (en) * | 2017-07-14 | 2017-11-21 | 重庆微标科技股份有限公司 | RF power amplification power compensating system and method |
-
2018
- 2018-12-12 CN CN201811517771.2A patent/CN109639247B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1051324A (en) * | 1996-07-30 | 1998-02-20 | Matsushita Electric Works Ltd | Transmission power control system |
| US6549071B1 (en) * | 2000-09-12 | 2003-04-15 | Silicon Laboratories, Inc. | Power amplifier circuitry and method using an inductance coupled to power amplifier switching devices |
| CN103401517A (en) * | 2013-08-15 | 2013-11-20 | 杭州威力克通信系统有限公司 | Radio frequency power amplifier system |
| CN107370464A (en) * | 2017-07-14 | 2017-11-21 | 重庆微标科技股份有限公司 | RF power amplification power compensating system and method |
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Effective date of registration: 20191211 Address after: 201114 room 8, building 2388, 501 Chen Cheng Road, Shanghai, Minhang District Applicant after: CIG SHANGHAI Co.,Ltd. Address before: 201114 room 8, building 2388, 501 Chen Cheng Road, Shanghai, Minhang District Applicant before: CIG SHANGHAI Co.,Ltd. Applicant before: CIG ZHEJIANG Co.,Ltd. |
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