CN108988795A - Grid voltage adaptively adjusts equipment, method and device thereof - Google Patents
Grid voltage adaptively adjusts equipment, method and device thereof Download PDFInfo
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Classifications
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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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty amplifiers
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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
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
-
- 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
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
-
- 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
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
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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
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/213—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only in integrated circuits
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/447—Indexing scheme relating to amplifiers the amplifier being protected to temperature influence
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
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Abstract
The present invention relates to a kind of grid voltages adaptively to adjust equipment, method and device thereof, wherein the equipment includes control device, power detection device and Doherty amplifying circuit；One end of power detection device connects control device, and the other end connects Doherty amplifying circuit；Control device connects Doherty amplifying circuit.Power detection device detects the input signal of Doherty amplifying circuit, obtains signal power information；Control device obtains signal peak power according to signal power information, and based on preset peak power and grid voltage corresponding relationship, obtains the main grid voltage and auxiliary grid voltage of corresponding signal peak power；Main gate voltage signal that control device is generated according to main grid voltage, the auxiliary gate voltage signal generated according to auxiliary grid voltage.And then the average power signal and signal peak-to-average ratio of detection Doherty amplifying circuit can be passed through, the grid voltage of dynamic self-adapting Doherty amplifying circuit, so that the impact of performance of Doherty amplifying circuit is more excellent, the linear index and working efficiency of Doherty power amplifier are improved.
Description
Technical field
The present invention relates to power amplifier techniques field, more particularly to a kind of grid voltage adaptively adjust equipment, method and
Its device.
Background technique
In order to improve the availability of frequency spectrum of communication system, communication system uses different Multiple access modulation modes, such as QPSK
(Quadrature Phase Shift Keying, quadrature phase shift keying), QAM (Quadrature Amplitude
Modulation, quadrature amplitude modulation) and OFDMA (Orthogonal Frequency Division Multiple
Access, orthogonal frequency division multiple access) etc..Currently, the signal peak-to-average ratio of communication system is higher and higher, traditional power amplifier back-off side
Formula is difficult to meet efficient development trend, and therefore, power amplifier generallys use Doherty technology to obtain higher effect
Rate.Doherty power amplifier includes main power tube (Carrier Amplifier) and auxiliary power amplifier pipe (Peak
Amplifier), main power tube works always, works after the peak value of auxiliary power amplifier pipe to setting.With traditional power amplifier phase
Than Doherty power amplifier has higher efficiency, and can be widely used in the communication system of various standards.
During realization, inventor has found that at least there are the following problems in traditional technology: traditional Doherty power is put
Big device is difficult to reach the linear index requirement of higher standard and higher working efficiency.
Summary of the invention
Based on this, it is necessary to be required for the linear index of traditional Doherty power amplifier and working efficiency is limited
The problem of, a kind of grid voltage is provided and adaptively adjusts equipment and its grid voltage self-adapting regulation method, device.
To achieve the goals above, the embodiment of the invention provides a kind of grid voltages adaptively to adjust equipment, including control dress
It sets, power detection device and Doherty amplifying circuit；One end of power detection device connects control device, other end connection
The input terminal of Doherty amplifying circuit；Control device connects Doherty amplifying circuit；
Power detection device detects the input signal of Doherty amplifying circuit, obtains signal power information, and by signal function
Rate information is transferred to control device；
Control device obtains signal peak power according to signal power information, and is based on preset peak power and grid voltage
Corresponding relationship obtains the main grid voltage and auxiliary grid voltage of corresponding signal peak power；
Control device generates main gate voltage signal according to main grid voltage, generates auxiliary gate voltage signal according to auxiliary grid voltage, and
Main gate voltage signal, auxiliary gate voltage signal are transferred to Doherty amplifying circuit.
Power detection device includes coupling circuit, average power detection circuit and peak-to-average force ratio in one of the embodiments,
Detection circuit；Signal peak information includes average power signal and signal peak-to-average ratio；
One end of average power detection circuit connects control device, and the other end connects coupling circuit；Peak-to-average force ratio detection circuit
One end connect control device, the other end connect coupling circuit；The input terminal of coupling circuit connection Doherty amplifying circuit；
For coupling circuit by coupling input signal, the first obtained coupled signal is transferred to average power detection circuit；Mean value
Power-sensing circuit detects the first coupled signal, obtains average power signal；
For coupling circuit by coupling input signal, the second obtained coupled signal is transferred to peak-to-average force ratio detection circuit；Peak-to-average force ratio
Detection circuit detects the second coupled signal, obtains signal peak-to-average ratio.
Control device includes processor, the first DA circuit and the 2nd DA circuit in one of the embodiments,；
One end of first DA circuit connects processor, the main amplification branch that other end connection Doherty amplifying circuit includes；
One end of 2nd DA circuit connects processor, the auxiliary amplification branch that other end connection Doherty amplifying circuit includes；
Main grid voltage is transferred to the first DA circuit by processor；First DA circuit will convert main grid pressure and be worth to obtain main grid pressure letter
Number, it is transferred to main amplification branch；
Processor will assist grid voltage to be transferred to the 2nd DA circuit；2nd DA circuit is assisted conversion auxiliary grid voltage value
Gate voltage signal is transferred to auxiliary amplification branch.
It in one of the embodiments, further include connecting the temperature sensing circuit of control device, and be connected to control dress
Set the current detection circuit between the main amplification branch for including with Doherty amplifying circuit；
Temperature sensing circuit is used to detect the temperature value of Doherty amplifying circuit；
Current detection circuit is used to detect the quiescent current of main amplification branch.
On the other hand, the embodiment of the invention also provides a kind of grid voltage self-adapting regulation methods, comprising the following steps:
According to the signal peak information got, signal peak power is obtained；
Based on preset peak power and grid voltage corresponding relationship, the main grid voltage and auxiliary of corresponding signal peak power are obtained
Grid voltage；
Main gate voltage signal is generated according to main grid voltage, generates auxiliary gate voltage signal according to auxiliary grid voltage, and by main grid pressure
Signal, auxiliary gate voltage signal are transferred to Doherty amplifying circuit.
In one of the embodiments, based on preset peak power and grid voltage corresponding relationship, corresponding signal peak is obtained
The step of main grid voltage of power and auxiliary grid voltage includes:
Look-up table is inquired, the main grid voltage and auxiliary grid voltage of corresponding signal peak power are obtained.
Look-up table includes temperature range, peak power section, main grid voltage and auxiliary grid voltage in one of the embodiments,
Value；
Look-up table is inquired, the main grid voltage of corresponding signal peak power is obtained and includes: the step of assisting grid voltage
Obtain the temperature value of Doherty amplifying circuit, the temperature range that confirmation temperature value is fallen into；
Signal peak power is inquired in the peak power section of corresponding temperature range, obtains main grid voltage and auxiliary grid voltage
Value.
Look-up table is inquired in one of the embodiments, obtains the main grid voltage and supplementary gate of corresponding signal peak power
Include: before the step of pressure value
Obtain the corresponding each peak power section of temperature range；Peak power section includes high-power section, middle power area
Between and small-power section；
Based on the power grid voltage rule of correspondence, each peak power section and temperature range, look-up table is generated；Power grid voltage pair
Answering rule includes: that main grid voltage and auxiliary grid voltage increase, middle power with the increase of signal peak power in high-power section
The corresponding main grid voltage of signal peak power and auxiliary grid voltage are fixed value and main grid voltage and auxiliary grid voltage in section
Value reduces with the increase of signal peak power in small-power section.
On the other hand, the embodiment of the invention also provides a kind of grid voltage self-adapting adjusting apparatus, comprising:
Peak power acquiring unit, for obtaining signal peak power according to the signal peak information got；
Grid voltage acquiring unit, for obtaining corresponding signal peak based on preset peak power and grid voltage corresponding relationship
The main grid voltage and auxiliary grid voltage of power；
Grid voltage adjustment unit, for generating main gate voltage signal according to main grid voltage, generating supplementary gate according to auxiliary grid voltage
Signal is pressed, and main gate voltage signal, auxiliary gate voltage signal are transferred to Doherty amplifying circuit.
On the other hand, the embodiment of the invention also provides a kind of computer readable storage medium, it is stored thereon with computer
Program, which is characterized in that the step of any of the above-described grid voltage self-adapting regulation method is realized when computer program is executed by processor
Suddenly.
A technical solution in above-mentioned technical proposal is had the following advantages and beneficial effects:
One end based on power detection device connects control device, and the other end connects the input terminal of Doherty amplifying circuit；
Control device connects Doherty amplifying circuit.Power detection device detects the input signal of Doherty amplifying circuit, obtains letter
Number power information, and signal power information is transferred to control device；Control device obtains signal peak according to signal power information
It is worth power；Control device is based on preset peak power and grid voltage corresponding relationship, obtains the master for respectively corresponding signal peak power
Grid voltage and auxiliary grid voltage；The main gate voltage signal that control device will be generated according to main grid voltage is transferred to Doherty amplification electricity
Road, and the auxiliary gate voltage signal that will be generated according to auxiliary grid voltage, are transferred to Doherty amplifying circuit.The embodiment of the present application energy
Enough signal power informations by detection Doherty amplifying circuit, the grid voltage of dynamic self-adapting Doherty amplifying circuit,
Efficiency when can take into account high-power can also take into account performance when small-power, so that the impact of performance of Doherty amplifying circuit is more
It is excellent, improve the linear index and working efficiency of Doherty power amplifier.
Detailed description of the invention
Fig. 1 is the first structure diagram that grid voltage adaptively adjusts equipment in one embodiment；
Fig. 2 is the structural schematic diagram of power detection device in one embodiment；
Fig. 3 is the second structural schematic diagram that grid voltage adaptively adjusts equipment in one embodiment；
Fig. 4 is the third structural schematic diagram that grid voltage adaptively adjusts equipment in one embodiment；
Fig. 5 is the first pass schematic diagram of grid voltage self-adapting regulation method in one embodiment；
Fig. 6 is the second procedure schematic diagram of grid voltage self-adapting regulation method in one embodiment；
Fig. 7 is the third flow diagram of grid voltage self-adapting regulation method in one embodiment；
Fig. 8 is the 4th flow diagram of grid voltage self-adapting regulation method in one embodiment；
Fig. 9 is the structural schematic diagram of grid voltage self-adapting adjusting apparatus in one embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the application.But the application can realize in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to disclosure of this application.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
The grid voltage of traditional Doherty amplifying circuit is the quiescent current and auxiliary function according to main power tube (road Carry)
The grid voltage for putting pipe (road Peak) remains unchanged to be arranged, in Doherty in use, the grid voltage on the road Peak does not reach power also puts
The cut-in voltage of big pipe, therefore be that only the road Carry is that have stationary stream, and the road Peak there is not stationary stream.Therefore, traditional
Doherty power amplifier is difficult to reach the linear index requirement of higher standard and higher working efficiency.
And in various embodiments of the present invention, the signal power letter of Doherty input amplifier can be entered by detecting
Breath comes the road Carry and the road Peak of dynamic self-adapting Doherty power amplifier (such as average power signal and signal peak-to-average ratio)
Grid voltage, to achieve the purpose that take into account performance and promote Doherty power amplification efficiency.By detecting Doherty input amplifier
Signal power information, the grid voltage of dynamic self-adapting Doherty power amplifier, efficiency when can take into account high-power also can be simultaneous
Performance when small-power is cared for, so that the impact of performance of Doherty power amplifier is more excellent.
In one embodiment, as shown in Figure 1, providing a kind of grid voltage adaptively adjusts equipment, including control device
110, power detection device 120 and Doherty amplifying circuit 130；One end of power detection device 120 connects control device 110,
The input terminal of other end connection Doherty amplifying circuit 130；Control device 110 connects Doherty amplifying circuit 130.
Power detection device 120 detects the input signal of Doherty amplifying circuit 130, obtains signal power information, and will
Signal power information is transferred to control device 110；Control device 110 obtains signal peak power according to signal power information, and
Based on preset peak power and grid voltage corresponding relationship, the main grid voltage and auxiliary grid voltage of corresponding signal peak power are obtained；
Control device 110 generates main gate voltage signal according to main grid voltage, generates auxiliary gate voltage signal according to auxiliary grid voltage, and by main grid
Pressure signal, auxiliary gate voltage signal are transferred to Doherty amplifying circuit 130.
Wherein, control device 110 refers to the device with the functions such as signal processing and signal transmission.Power detection device
120 refer to the device of the power information for being able to detect signal and peak-to-average force ratio information.Doherty amplifying circuit 130 refers to wrapping
Circuit containing Doherty power amplifier.Doherty amplifying circuit may include main amplifying circuit (road Carry) and auxiliary amplification
Circuit (road Peak): main amplifying circuit includes main power tube (Carrier Amplifier), and auxiliary amplifying circuit includes auxiliary function
Put pipe (Peak Amplifier).Input signal can be radio-frequency input signals.Signal power information refers to the power of signal
With the information such as peak-to-average force ratio.Preset peak power can be obtained with grid voltage corresponding relationship according to actual experiment measurement, such as can be right
Doherty amplifying circuit input test signal obtains the corresponding relationship of peak power and grid voltage.Main grid voltage refers to main power amplifier
The grid voltage of pipe, auxiliary grid voltage refer to the grid voltage of auxiliary power amplifier pipe.Main gate voltage signal and auxiliary gate voltage signal can be
Analog signal.
Specifically, one end based on power detection device 120 connects control device 110, and the other end connects Doherty amplification
The input terminal of circuit 130.In Doherty 130 input signal of amplifying circuit, power detection device 120 passes through detection Doherty
The input signal of amplifying circuit 130 obtains signal power information, and signal power information is transferred to control device 110.Control
Device 110 is handled according to the signal power information received, obtains signal peak power.Control device 110 is based on default
Peak power and grid voltage corresponding relationship, obtain respectively correspond signal peak power main grid voltage and auxiliary grid voltage, in turn
Main gate voltage signal can be generated according to main grid voltage, and main gate voltage signal is transferred to Doherty amplifying circuit 130；According to auxiliary
Grid voltage generates auxiliary gate voltage signal, and auxiliary gate voltage signal is transferred to Doherty amplifying circuit 130.It meets larger
The greater efficiency of Doherty amplifying circuit 130 when output power ensure that preferable power amplifier initial line in smaller output power
Property, realize the adaptive adjustment to 130 grid voltage of Doherty amplifying circuit.
In a specific embodiment, as shown in Figure 2, wherein power detection device 220 include coupling circuit 222,
It is worth power-sensing circuit 224 and peak-to-average force ratio detection circuit 226.Signal peak information includes average power signal and signal peak-to-average power
Than.One end of average power detection circuit 224 connects control device, and the other end connects coupling circuit；Peak-to-average force ratio detection circuit 226
One end connect control device, the other end connect coupling circuit 222；The input of the connection Doherty amplifying circuit of coupling circuit 222
End.
The first coupled signal that coupling circuit 222 obtain coupling input signal is transferred to average power detection circuit 224；
Average power detection circuit 224 detects the first coupled signal, obtains average power signal；Coupling circuit 222 believe coupling input
Number the second obtained coupled signal is transferred to peak-to-average force ratio detection circuit 226；The detection of peak-to-average force ratio detection circuit 226 second coupling letter
Number, obtain signal peak-to-average ratio.
Wherein, coupling circuit 222 can be used to couple input signal a part of power progress power detection and peak-to-average force ratio inspection
It surveys.Coupling circuit 222 include coupler, and a part of power can be coupled by coupler and carries out power detection and peak-to-average force ratio detection.
Preferably, coupling circuit 222 are RF coupling circuit.Average power detection circuit 224 refers to being able to detect input signal
The circuit of average power, average power detection circuit 224 can be used to detect the average power of input signal, and then it is flat to obtain signal
Equal power.Peak-to-average force ratio detection circuit 226 refers to the circuit for the peak-to-average force ratio for being able to detect input signal, peak-to-average force ratio detection circuit
226 can be used to detect the peak-to-average force ratio of input signal, and then obtain signal peak-to-average ratio.
Specifically, it is connected between control device and coupling circuit 222 based on average power detection circuit 224；Peak-to-average force ratio
Detection circuit 226 is connected between control device and coupling circuit 222；Coupling circuit 222 connect the defeated of Doherty amplifying circuit
Enter.Coupling circuit 222 couple input signal, obtain the first coupled signal, and the first coupled signal is transferred to mean value
Power-sensing circuit 224 obtains average power signal so that average power detection circuit 224 detects the first coupled signal.Coupling
Circuit is to input signal and then couples, and obtains the second coupled signal, and the second coupled signal is transferred to peak-to-average force ratio detection circuit
226, so that peak-to-average force ratio detection circuit 226 detects the second coupled signal, obtain signal peak-to-average ratio.
Further, input signal enters the input terminal of Doherty amplifying circuit from coupling circuit 222.Wherein, coupling
Input signal is divided into two-way, and the first coupled signal all the way enters average power detection circuit 224, the second coupling letter of another way
Number enter peak-to-average force ratio detection circuit 226.The average power signal that average power detection circuit 224 will test is transferred to control dress
It sets, the signal peak-to-average ratio that peak-to-average force ratio detection circuit 226 will test is transferred to control device.Control device is according to signal averaging function
Rate and signal peak-to-average ratio, obtain signal peak power.And then control device can be based on preset peak power pass corresponding with grid voltage
System obtains the main grid voltage for respectively corresponding signal peak power and auxiliary grid voltage, realizes that dynamic self-adapting Doherty is put
The grid voltage of big circuit, efficiency when can take into account high-power can also take into account performance when small-power, so that Doherty circuit
The impact of performance is more excellent.
In above-described embodiment, the average power signal size and signal peak-to-average power of detection Doherty amplifying circuit can be passed through
Than the grid voltage of dynamic self-adapting Doherty amplifying circuit, efficiency when can take into account high-power can also take into account small-power
When performance improve the linear index of Doherty power amplifier so that the impact of performance of Doherty amplifying circuit is more excellent
And working efficiency.
In one embodiment, as shown in figure 3, providing a kind of grid voltage adaptively adjusts equipment.Wherein, control device
310 include processor 312, the first DA circuit 314 and the 2nd DA circuit 316.One end of first DA circuit 314 connects processor
312, the main amplification branch 332 that other end connection Doherty amplifying circuit 330 includes；One end junction of 2nd DA circuit 316
Manage device 312, the auxiliary amplification branch 334 that other end connection Doherty amplifying circuit 330 includes.
Main grid voltage is transferred to the first DA circuit 314 by processor 312；Conversion main grid pressure is worth by the first DA circuit 314
To main gate voltage signal, it is transferred to main amplification branch 332；Processor 312 will assist grid voltage to be transferred to the 2nd DA circuit 316；The
Conversion auxiliary grid voltage value is obtained auxiliary gate voltage signal by two DA circuits 316, is transferred to auxiliary amplification branch 334.
Wherein, optionally, processor 312 can be FPGA (Field-Programmable Gate Array, scene can
Program gate array), single-chip microcontroller or DSP (Digital Signal Processer, digital signal processor).First DA circuit
314 and the 2nd DA circuit 316 refer to digital converting analogue circuit.Main amplification branch 332 is to include main power tube (Carry
Amplifier branch), auxiliary amplification branch 334 is the branch comprising auxiliary power amplifier pipe (Peak Amplifier).
Specifically, it is connected between processor and main amplification branch 332 based on the first DA circuit 314；2nd DA circuit 316
It is connected between processor and auxiliary amplification branch 334.Main grid voltage is transferred to the first DA circuit 314 by processor 312；First
314 pairs of DA circuit main grid voltages carry out digital-to-analogue conversion, obtain main gate voltage signal, and main gate voltage signal is transferred to main amplification branch
332；Processor 312 will assist grid voltage to be transferred to the 2nd DA circuit 316；2nd DA circuit 316 assists grid voltage to carry out digital-to-analogue
Conversion obtains auxiliary gate voltage signal, and auxiliary gate voltage signal is transferred to auxiliary amplification branch 334.Realize adaptive adjustment
The grid voltage of the main amplification branch 332 (road Carry) of Doherty amplifying circuit 330 and the grid of auxiliary amplification branch 334 (road Peak)
Pressure.
Based on the present embodiment, the signal power size and signal peak of Doherty input amplifier are entered by detecting
Compare, the main amplification branch of dynamic self-adapting Doherty amplifying circuit and the grid voltage of auxiliary amplification branch, and then reaches simultaneous
Gu Xingneng and the purpose for promoting Doherty power amplification efficiency.DA circuit (the first DA circuit and the 2nd DA electricity are controlled by processor
Road) output gate voltage signal, the main amplification branch of Doherty power amplifier and the grid voltage of auxiliary amplification branch.And then according to input signal
Average power signal size and signal peak-to-average ratio size dynamic self-adapting Doherty power amplifier grid voltage.If signal is flat
Equal power is larger and signal peak-to-average ratio is also larger, the main grid voltage for amplifying branch and auxiliary can be amplified the grid voltage dynamic of branch certainly
Adaptation is turned down, can guarantee high efficiency in this way.It, can be main amplification if average power signal is smaller and signal peak-to-average ratio is also smaller
The grid voltage of branch and the grid voltage dynamic self-adapting of auxiliary amplification branch tune up, to reach better initial linear.
In one embodiment, as shown in figure 4, providing a kind of grid voltage adaptively adjusts equipment.It further include connection control
The temperature sensing circuit 440 of device 410；Temperature sensing circuit 440 is used to detect the temperature value of Doherty amplifying circuit 430.
Wherein, temperature sensing circuit 440 refers to measure the circuit of temperature.Temperature sensing circuit 440 may include temperature
Sensor is spent, can detect the temperature value of Doherty amplifying circuit by temperature sensor.
Specifically, control device 410 is connected based on temperature sensing circuit 440, the test side of temperature sensing circuit 440 is leaned on
Nearly Doherty amplifying circuit 430, and then the detectable temperature for obtaining detection Doherty amplifying circuit 430 of temperature sensing circuit 440
Angle value, and the temperature value that will test is transferred to control device 410.And then control device 410 can be according to the temperature got
It is worth binding signal peak power, judges the signal peak power of Doherty amplifying circuit 430 in which section, temperature is at which
Section, based on preset peak power and grid voltage corresponding relationship, the master that can adaptively adjust Doherty amplifying circuit 430 is put
The grid voltage of big branch and the grid voltage of auxiliary amplification branch.Meet the higher of in larger output power Doherty amplifying circuit
Efficiency ensure that preferable power amplifier initial linear in smaller output power.
In a specific embodiment, as shown in figure 4, further including being connected to control device 410 and Doherty amplification electricity
The current detection circuit 450 between main amplification branch that road 430 includes.Current detection circuit 450 is for detecting main amplification branch
Quiescent current.
Wherein, current detection circuit 450 refers to the circuit for being able to detect electric current.
Specifically, it is connected between control device 410 and main amplification branch based on current detection circuit 450.Right
When Doherty 430 input test signal of amplifying circuit, main gate voltage signal can be transferred to Doherty by control device 410 and put
The main amplification branch that big circuit 430 includes；And gate voltage signal will be assisted to be transferred to the auxiliary that Doherty amplifying circuit 430 includes
Amplify branch, quiescent current of the main amplification branch in different grid voltages is detected by current detection circuit 450, is obtained in difference
Grid voltage under quiescent current, to obtain peak power and grid voltage corresponding relationship.
In a specific embodiment, preset peak power is closed with grid voltage corresponding relationship by searching for table foundation is corresponding
System.The establishment process of look-up table are as follows: input test signal enters Doherty amplifying circuit, carries out the Doherty under different temperatures
The signal peak power and grid voltage of amplifying circuit acquire.In varying environment temperature, by acquiring the grid voltage under different stationary streams,
And by the parameter cache arrived in look-up table.Since Doherty amplifying circuit is that main amplification branch has when working condition is arranged
Quiescent current, and assisting amplification branch is no quiescent current.So need to only read current temperature by temperature sensing circuit
Value not can be completed at different temperatures and not by current detection circuit and the first DA circuit, the 2nd DA circuit and processor
It saves in look-up table with the grid voltage under stationary stream, and by data collected, in being actually used, is realized certainly by tabling look-up
Adjustment grid voltage is adapted to, the precision and efficiency that grid voltage adaptively adjusts are improved.Doherty is adaptively adjusted by lookup table mode
The main amplification branch of amplifying circuit and the grid voltage of auxiliary amplification branch, are applicable to various Doherty amplifying circuits, fit
It is wide with range.
In one embodiment, as shown in figure 5, providing a kind of grid voltage self-adapting regulation method.The following steps are included:
Step S510 obtains signal peak power according to the signal peak information got.
Step S520 obtains the main grid of corresponding signal peak power based on preset peak power and grid voltage corresponding relationship
Pressure value and auxiliary grid voltage.
Step S530 generates main gate voltage signal according to main grid voltage, generates auxiliary gate voltage signal according to auxiliary grid voltage, and
Main gate voltage signal, auxiliary gate voltage signal are transferred to Doherty amplifying circuit.
Specifically, in Doherty amplifying circuit input signal, control device carries out the signal power information received
Processing, obtains signal peak power.Wherein signal power information can detect Doherty amplifying circuit by power detection device
Input signal obtains.Control device is based on preset peak power and grid voltage corresponding relationship, and acquisition respectively corresponds signal peak function
The main grid voltage and auxiliary grid voltage of rate, and then main gate voltage signal can be generated according to main grid voltage, and main gate voltage signal is transmitted
Give Doherty amplifying circuit；Auxiliary gate voltage signal is generated according to auxiliary grid voltage, and auxiliary gate voltage signal is transferred to
Doherty amplifying circuit.And then meet in larger output power Doherty amplifying circuit and guarantee higher efficiency, compared with
It ensure that preferable power amplifier initial linear when small output power, realize the adaptive adjustment to Doherty amplifying circuit grid voltage.
Further, signal power information may include average power signal and signal peak-to-average ratio.Control device can be to signal
Mean power is added with signal peak-to-average ratio, obtains signal peak power.
Based on the present embodiment, the signal power information of detection Doherty amplifying circuit, dynamic self-adapting can be passed through
The grid voltage of Doherty amplifying circuit, efficiency when can take into account high-power can also take into account performance when small-power, so that
The impact of performance of Doherty amplifying circuit is more excellent, improves the linear index and working efficiency of Doherty power amplifier.
In one embodiment, as shown in fig. 6, providing a kind of grid voltage self-adapting regulation method.The following steps are included:
Step S610 obtains signal peak power according to the signal peak information got.
Step S620 inquires look-up table, obtains the main grid voltage and auxiliary grid voltage of corresponding signal peak power.
Step S630 generates main gate voltage signal according to main grid voltage, generates auxiliary gate voltage signal according to auxiliary grid voltage, and
Main gate voltage signal, auxiliary gate voltage signal are transferred to Doherty amplifying circuit.
Wherein, above-mentioned steps S610, step S630 particular content process can refer to content above, details are not described herein again.
Specifically, look-up table can be established to obtain according to preset peak power and grid voltage corresponding relationship.For example, can will test
In the case that signal enters Doherty amplifying circuit, the grid voltage acquisition of the Doherty amplifying circuit under different temperatures is carried out.?
When different temperatures, pass through the grid voltage of different quiescent currents corresponding under acquisition different temperatures；And acquire Doherty amplifying circuit
The average power signal and signal peak-to-average ratio of input terminal, obtain signal peak power.By collected data buffer storage in look-up table
In, and then establish look-up table.In practical applications, radiofrequency signal is inputted into Doherty amplifying circuit, and then control device can root
According to the average power signal and signal peak-to-average ratio got, signal peak power is obtained.Control device is based on look-up table mode, leads to
Inquiry look-up table is crossed, and then obtains the main grid voltage for respectively corresponding signal peak power and auxiliary grid voltage, so as to according to master
Grid voltage generates main gate voltage signal, and main gate voltage signal is transferred to Doherty amplifying circuit；It is generated according to auxiliary grid voltage auxiliary
Gate voltage signal is helped, and auxiliary gate voltage signal is transferred to Doherty amplifying circuit.And then it meets in larger output power
Doherty amplifying circuit guarantees higher efficiency, ensure that preferable power amplifier initial linear in smaller output power, realizes
Adaptive adjustment to Doherty amplifying circuit grid voltage.
Further, look-up table includes temperature range, peak power section, main grid voltage and auxiliary grid voltage.Step
S620 is further comprising the steps of:
Obtain the temperature value of Doherty amplifying circuit, the temperature range that confirmation temperature value is fallen into；
Signal peak power is inquired in the peak power section of corresponding temperature range, obtains main grid voltage and auxiliary grid voltage
Value.
Wherein, temperature range is preset temperature range, temperature range can be divided by actual experiment, and establish corresponding temperature
Spend the peak power and grid voltage corresponding relationship of range.
Specifically, by the temperature range where inquiry temperature value, in the peak power section of corresponding temperature range
Signal peak power is inquired, the main grid voltage and auxiliary grid voltage of corresponding signal peak power are obtained.So as to according to main grid pressure
Value generates main gate voltage signal, and main gate voltage signal is transferred to Doherty amplifying circuit；Supplementary gate is generated according to auxiliary grid voltage
Signal is pressed, and auxiliary gate voltage signal is transferred to Doherty amplifying circuit.And then it meets in larger output power
Doherty amplifying circuit guarantees higher efficiency, ensure that preferable power amplifier initial linear in smaller output power, realizes
Adaptive adjustment to Doherty amplifying circuit grid voltage.By dividing peak power range, improve what grid voltage adaptively adjusted
Precision.
In one embodiment, as shown in fig. 7, providing a kind of grid voltage self-adapting regulation method.The following steps are included:
Step S710 obtains signal peak power according to the signal peak information got.
Step S720 obtains the corresponding each peak power section of temperature range；Peak power section include high-power section,
Middle power interval and small-power section.
Step S730 is based on the power grid voltage rule of correspondence, each peak power section and temperature range, generates look-up table.
Step S740 inquires look-up table, obtains the main grid voltage and auxiliary grid voltage of corresponding signal peak power.
Step S750 generates main gate voltage signal according to main grid voltage, generates auxiliary gate voltage signal according to auxiliary grid voltage, and
Main gate voltage signal, auxiliary gate voltage signal are transferred to Doherty amplifying circuit.
Wherein, the power grid voltage rule of correspondence includes: main grid voltage and auxiliary grid voltage with signal peak in high-power section
The increase of power and increase, in middle power interval the corresponding main grid voltage of signal peak power and auxiliary grid voltage be fixation
Value and main grid voltage and auxiliary grid voltage reduce with the increase of signal peak power in small-power section.
Wherein, temperature value can detect to obtain by temperature sensing circuit close to Doherty amplifying circuit.Temperature range is pre-
If temperature range, can by actual experiment divide temperature range, and establish relevant temperature range peak power and grid voltage pair
It should be related to.Peak power section can further division obtain high-power section, middle power interval and small-power section.Each signal
The corresponding main grid voltage of peak power and an auxiliary grid voltage.
Specifically, control device obtains signal peak power according to the signal power information got, and obtains
The current temperature value of Doherty amplifying circuit.Control device can be based on preset peak power and grid voltage corresponding relationship, inquiry temperature
Temperature range where angle value；And obtain the corresponding each peak power section of temperature range.Control device can be based on power grid voltage
The rule of correspondence, each peak power section and temperature range generate look-up table, and then by inquiry look-up table, obtain corresponding letter
The main grid voltage and auxiliary grid voltage of number peak power, so as to generate main gate voltage signal according to main grid voltage, and by main grid pressure
Signal is transferred to Doherty amplifying circuit；Auxiliary gate voltage signal is generated according to auxiliary grid voltage, and will auxiliary gate voltage signal transmission
Give Doherty amplifying circuit.It meets the Doherty amplifying circuit in larger output power and guarantees higher efficiency, smaller
It ensure that preferable power amplifier initial linear when output power, realize the adaptive adjustment to Doherty amplifying circuit grid voltage.
Further, peak power section can be divided in advance according to experiment experience.It, will according to the power grid voltage rule of correspondence
Collecting test signal enters data buffer storage that Doherty amplifying circuit obtains in table, and then obtains look-up table.If signal peak
When power is fallen into middle power interval, then main grid voltage of power interval and auxiliary grid voltage are fixed value in this；If signal
It, can be main amplification electricity when peak power is fallen into high-power section (i.e. average power signal is larger and signal peak-to-average ratio is also larger)
The grid voltage on road and the grid voltage of auxiliary amplifying circuit are adaptively turned down, and then can guarantee high efficiency；If signal peak power range is fallen
When entering in small-power section (i.e. average power signal is smaller and signal peak-to-average ratio is also smaller), can the grid voltage of main amplifying circuit and
The grid voltage of auxiliary amplifying circuit adaptively tunes up, to reach better initial linear.
In a specific embodiment, as shown in figure 8, providing a kind of grid voltage self-adapting regulation method.Grid voltage is adaptive
It should adjust that detailed process is as follows:
1, Initialize installation is carried out；
2, initialization is completed, and is carried out under different temperatures, the difference of the grid voltage acquisition of auxiliary amplification branch and main amplification branch
Corresponding grid voltage acquisition when quiescent current；
3, when thering is input signal to enter Doherty amplifying circuit, by acquisition average power signal and signal peak-to-average ratio, and
It is transferred to control device to be handled, obtains signal peak power；
4, MCU judges the peak power range of the signal peak power of input signal.If high-power section, goes to 5；If
It is middle power interval, goes to 6；If small-power section, goes to 7；
5, at high-power section, smaller, main amplification branch is arranged as power is bigger in the quiescent current of main amplification branch
(grid voltage of i.e. main amplification branch is as power is bigger and is arranged smaller) is arranged by the table lookup of look-up table in the quiescent current on road；
The grid voltage of auxiliary amplification branch is bigger and smaller with power, and the grid voltage of auxiliary amplification branch is arranged by table lookup, goes to 8；
6, in middle power interval, it is main amplification branch quiescent current (it is main amplification branch grid voltage with power it is bigger and
It is constant) and assist the grid voltage of amplification branch constant, go to 8；
7, at small-power section, higher, main amplification branch is arranged as power is smaller in the quiescent current of main amplification branch
(grid voltage of i.e. main amplification branch is as power is smaller and is arranged bigger) is arranged by table lookup in the quiescent current on road；Auxiliary amplification
The grid voltage of branch is smaller and bigger with power, and the grid voltage of auxiliary amplification branch is arranged by table lookup, goes to 8；
8, grid voltage adaptively adjusts completion；Save the grid voltage of setting.
It based on the present embodiment, meets in larger output power, Doherty amplifying circuit ensure that higher efficiency；
In smaller output power, Doherty amplifying circuit ensure that preferable power amplifier initial linear.
In a specific embodiment, it is assumed that the ideal peak power output of a Doherty power amplifier is
55dBm (decibel milliwatt), gain are 15dB (decibels)；The main amplification branch quiescent current of the recommendation of Doherty power amplifier is
1000mA (milliampere), grid voltage are about 2.0V (volt), and auxiliary amplification branch grid voltage is 1.0V.Such as according to power and gain distribution rule
Then, when the power of Doherty power amplifier output 50dBm, the input power into Doherty power amplifier is
50dBm-15dB=35dBm.
Usual practical peak power output is generally in the range of the low 3dB of ideal peak power output.Namely actually most
Big output power is no more than 55dBm-3dB=52dBm.Then be set in 55dBm-10dB to 55dBm-3dB range be high-power area
Between, it is high-power section that corresponding the present embodiment, which is in the power bracket of 45dBm~52dBm,；In 55dBm-15dB to 55dBm-
10dB range is middle power interval, and corresponding the present embodiment is then the power interval in the power bracket of 40dBm-45dBm is.?
55dBm-30dB is small-power section to 55dBm-15dB range, and corresponding the present embodiment is the power bracket in 25dBm-40dBm
It is small-power section.
Since the ideal peak power output of Doherty power amplifier can determine in debugging.According to above-mentioned setting,
Doherty amplifying circuit gain is 15dB to calculate, and the high-power peak ranges of Doherty input amplifier are 30dBm
~37dBm, middle power peak range are 25dBm~30dBm and small-power peak ranges are 10dBm~25dBm.Since signal exists
The peak-to-average force ratio that may be used in have it is different, peak power be equal to average power add peak-to-average force ratio.Wherein, common pair
Sound signal peak-to-average force ratio is equal to 3；Spread signal such as CDMA (CDMA), WCDMA (wideband code division multiple access) and the LTE (Long of class
Term Evolution, long term evolution) etc. peak-to-average force ratio can be between 7-10 or higher.To need to only read the equal of signal
It is worth power and peak-to-average force ratio, and is handled by control device, the peak power of signal can be obtained.It need to only judge the peak of signal
It is worth power in which range, can be put according to different signal peak powers adaptively to adjust the master of Doherty amplifying circuit
The grid voltage of big branch and the grid voltage of auxiliary amplification branch.
1 look-up table of table
For Doherty amplifying circuit, when increasing with power, the grid voltage of auxiliary amplification branch can be allowed to become smaller,
Meanwhile the grid voltage of main amplification branch also becomes smaller, and then can guarantee the efficiency of Doherty amplifying circuit always near highest point,
Improve the efficiency of Doherty amplifying circuit；When reducing with power, the grid voltage of auxiliary amplification branch can be allowed to become larger, meanwhile,
The grid voltage of main amplification branch also becomes larger.Specifically, the grid voltage of main amplification branch and the grid voltage of auxiliary amplification branch can be by looking into
Table is arranged, and judges current temperature in which range by main control unit, signal peak power is in which range, by looking into
Table obtains the grid voltage that should currently select.Table is as shown in table 1.For example, when detecting that average power signal is 15dBm, letter
When number peak-to-average force ratio is 8dB, peak power at this time is 23.0dBm.By tabling look-up, the grid voltage for obtaining main amplification branch is
The grid voltage of 2.110V, auxiliary amplification branch are 1.05V.Grid voltage, which is arranged, by table-lookup self-adapting ensure that the stability of index, can
To improve the initial linear index of Doherty power amplifier, efficiency and initial linear index are taken into account, so that Doherty amplifying circuit
Performance be constantly in optimum state.
It should be understood that although each step in the flow chart of Fig. 5 to Fig. 7 is successively shown according to the instruction of arrow,
But these steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, these
There is no stringent sequences to limit for the execution of step, these steps can execute in other order.Moreover, Fig. 5 is into Fig. 7
At least part step may include that perhaps these sub-steps of multiple stages or stage are not necessarily same to multiple sub-steps
One moment executed completion, but can execute at different times, and the execution in these sub-steps or stage sequence is also not necessarily
Be successively carry out, but can at least part of the sub-step or stage of other steps or other steps in turn or
Alternately execute.
In one embodiment, as shown in figure 9, providing a kind of grid voltage self-adapting adjusting apparatus.The device includes:
Peak power acquiring unit 910, is used for, for obtaining according to the average power signal and signal peak-to-average ratio got
To signal peak power.
Grid voltage acquiring unit 920, for based on preset peak power and grid voltage corresponding relationship, acquisition to respectively correspond institute
State the main grid voltage and auxiliary grid voltage of signal peak power.
Grid voltage adjustment unit 930, for generating main gate voltage signal according to the main grid voltage, and by the main gate voltage signal
It is transferred to the Doherty amplifying circuit；Auxiliary gate voltage signal is generated according to the auxiliary grid voltage, and by the auxiliary grid voltage
Signal is transferred to the Doherty amplifying circuit.
Specific restriction about grid voltage self-adapting adjusting apparatus may refer to above for grid voltage self-adapting regulation method
Restriction, details are not described herein.Modules in above-mentioned grid voltage self-adapting adjusting apparatus can be fully or partially through software, hard
Part and combinations thereof is realized.Above-mentioned each module can be embedded in the form of hardware or adaptively adjust independently of grid voltage the place in equipment
It manages in device, can also be stored in a software form in the memory that grid voltage adaptively adjusts in equipment, in order to processor calling
Execute the corresponding operation of the above modules.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, is calculated
Machine program performs the steps of when being executed by processor
According to the average power signal and signal peak-to-average ratio got, signal peak power is obtained；
Based on preset peak power and grid voltage corresponding relationship, the main grid pressure for respectively corresponding the signal peak power is obtained
Value and auxiliary grid voltage；
Main gate voltage signal is generated according to the main grid voltage, and the main gate voltage signal is transferred to the Doherty and is put
Big circuit；
Auxiliary gate voltage signal is generated according to the auxiliary grid voltage, and described in the auxiliary gate voltage signal is transferred to
Doherty amplifying circuit.
It can also be achieved following steps when computer program is executed by processor:
Based on look-up table mode, the main grid voltage for respectively corresponding the signal peak power and auxiliary grid voltage are obtained.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the stream of the embodiment of above-mentioned each division operation method
Journey.Wherein, to any of memory, storage, database or other media used in each embodiment provided herein
Reference, may each comprise non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), can
Programming ROM (PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory
It may include random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is with a variety of shapes
Shi Ke get, such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram
(DDRSDRAM), enhanced SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus
(Rambus) direct RAM (RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram
(RDRAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of grid voltage adaptively adjusts equipment, which is characterized in that put including control device, power detection device and Doherty
Big circuit；One end of the power detection device connects the control device, and the other end connects the Doherty amplifying circuit
Input terminal；The control device connects the Doherty amplifying circuit；
The power detection device detects the input signal of the Doherty amplifying circuit, obtains signal power information, and by institute
It states signal power information and is transferred to the control device；
The control device obtains signal peak power according to the signal power information, and based on preset peak power with
Grid voltage corresponding relationship obtains the main grid voltage and auxiliary grid voltage of the corresponding signal peak power；
The control device generates main gate voltage signal according to the main grid voltage, generates auxiliary grid voltage according to the auxiliary grid voltage
Signal, and the main gate voltage signal, the auxiliary gate voltage signal are transferred to the Doherty amplifying circuit.
2. grid voltage according to claim 1 adaptively adjusts equipment, which is characterized in that the power detection device includes coupling
Close circuit, average power detection circuit and peak-to-average force ratio detection circuit；The signal peak information includes average power signal and letter
Number peak-to-average force ratio；
One end of the average power detection circuit connects the control device, and the other end connects the coupling circuit；The peak
The control device is connected than one end of detection circuit, the other end connects the coupling circuit；The coupling circuit connect institute
State the input terminal of Doherty amplifying circuit；
The coupling circuit will couple the input signal, and the first obtained coupled signal is transferred to the average power detection electricity
Road；The average power detection circuit detects first coupled signal, obtains the average power signal；
The coupling circuit will couple the input signal, and the second obtained coupled signal is transferred to the peak-to-average force ratio detection electricity
Road；The peak-to-average force ratio detection circuit detects second coupled signal, obtains the signal peak-to-average ratio.
3. grid voltage according to claim 1 adaptively adjusts equipment, which is characterized in that the control device includes processing
Device, the first DA circuit and the 2nd DA circuit；
One end of the first DA circuit connects the processor, and the other end connects the master that the Doherty amplifying circuit includes
Amplify branch；One end of the 2nd DA circuit connects the processor, and the other end connects the Doherty amplifying circuit and includes
Auxiliary amplify branch；
The main grid voltage is transferred to the first DA circuit by the processor；The first DA circuit will convert the main grid
Pressure is worth to obtain the main gate voltage signal, is transferred to the main amplification branch；
The auxiliary grid voltage is transferred to the 2nd DA circuit by the processor；The 2nd DA circuit will be converted described auxiliary
It helps grid voltage to obtain the auxiliary gate voltage signal, is transferred to the auxiliary amplification branch.
4. adaptively adjusting equipment to grid voltage described in 3 any one according to claim 1, which is characterized in that further include connection
The temperature sensing circuit of the control device, and be connected to the control device with the Doherty amplifying circuit and include
Current detection circuit between main amplification branch；
The temperature sensing circuit is used to detect the temperature value of the Doherty amplifying circuit；
The current detection circuit is used to detect the quiescent current of the main amplification branch.
5. a kind of grid voltage self-adapting regulation method, which comprises the following steps:
According to the signal peak information got, signal peak power is obtained；
Based on preset peak power and grid voltage corresponding relationship, the main grid voltage and auxiliary of the corresponding signal peak power are obtained
Grid voltage；
Main gate voltage signal is generated according to the main grid voltage, is generated according to the auxiliary grid voltage and assists gate voltage signal, and by institute
State main gate voltage signal, the auxiliary gate voltage signal is transferred to the Doherty amplifying circuit.
6. grid voltage self-adapting regulation method according to claim 5, which is characterized in that be based on preset peak power and grid
Corresponding relationship is pressed, the main grid voltage of the corresponding signal peak power is obtained and includes: the step of assisting grid voltage
Look-up table is inquired, the main grid voltage and auxiliary grid voltage of the corresponding signal peak power are obtained.
7. grid voltage self-adapting regulation method according to claim 6, which is characterized in that the look-up table includes temperature model
It encloses, peak power section, the main grid voltage and the auxiliary grid voltage；
Look-up table is inquired, the main grid voltage of the corresponding signal peak power is obtained and includes: the step of assisting grid voltage
The temperature value for obtaining the Doherty amplifying circuit confirms the temperature range that the temperature value is fallen into；
The signal peak power is inquired in the peak power section of the correspondence temperature range, obtains the main grid pressure
Value and the auxiliary grid voltage.
8. grid voltage self-adapting regulation method according to claim 7, which is characterized in that inquiry look-up table obtains corresponding institute
Include: before the step of stating the main grid voltage and auxiliary grid voltage of signal peak power
Obtain the corresponding each peak power section of the temperature range；The peak power section include high-power section,
Middle power interval and small-power section；
Based on the power grid voltage rule of correspondence, each peak power section and the temperature range, the look-up table is generated；Institute
Stating the power grid voltage rule of correspondence includes: the main grid voltage and the auxiliary grid voltage with signal peak in the high-power section
The increase of power and increase, the corresponding main grid voltage of signal peak power and the auxiliary grid voltage in the middle power interval
Value is fixed value and the main grid voltage and the auxiliary grid voltage with signal peak power in the small-power section
Increase and reduces.
9. a kind of grid voltage self-adapting adjusting apparatus characterized by comprising
Peak power acquiring unit, for obtaining signal peak power according to the signal peak information got；
Grid voltage acquiring unit, for obtaining the corresponding signal peak based on preset peak power and grid voltage corresponding relationship
The main grid voltage and auxiliary grid voltage of power；
Grid voltage adjustment unit, it is auxiliary for generating main gate voltage signal according to the main grid voltage, being generated according to the auxiliary grid voltage
Gate voltage signal is helped, and the main gate voltage signal, the auxiliary gate voltage signal are transferred to the Doherty amplifying circuit.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of grid voltage self-adapting regulation method described in any one of claim 5 to 8 is realized when being executed by processor.
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| CN201811138865.9A CN108988795A (en) | 2018-09-28 | 2018-09-28 | Grid voltage adaptively adjusts equipment, method and device thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113011A (en) * | 2019-04-22 | 2019-08-09 | 京信通信系统（中国）有限公司 | Radio-frequency power amplifier grid voltage scaling system, method and access network equipment |
| CN110829993A (en) * | 2019-11-26 | 2020-02-21 | 京信通信系统（中国）有限公司 | Radio frequency power amplification equipment, power amplification energy-saving method, device and storage medium |
-
2018
- 2018-09-28 CN CN201811138865.9A patent/CN108988795A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113011A (en) * | 2019-04-22 | 2019-08-09 | 京信通信系统（中国）有限公司 | Radio-frequency power amplifier grid voltage scaling system, method and access network equipment |
| CN110829993A (en) * | 2019-11-26 | 2020-02-21 | 京信通信系统（中国）有限公司 | Radio frequency power amplification equipment, power amplification energy-saving method, device and storage medium |
| CN110829993B (en) * | 2019-11-26 | 2024-05-24 | 京信网络系统股份有限公司 | Radio frequency power amplifying equipment, power amplifying energy-saving method, device and storage medium |
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