CN107634725A - A kind of method and device of hoisting power efficiency of amplitude - Google Patents
A kind of method and device of hoisting power efficiency of amplitude Download PDFInfo
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- CN107634725A CN107634725A CN201710775007.4A CN201710775007A CN107634725A CN 107634725 A CN107634725 A CN 107634725A CN 201710775007 A CN201710775007 A CN 201710775007A CN 107634725 A CN107634725 A CN 107634725A
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Abstract
The present invention relates to a kind of method of hoisting power efficiency of amplitude, comprise the following steps：Measurement obtains the power output of current power amplifier, by inquiring about the power being previously stored and voltage mapping relations, the voltage value of the power amplifier is obtained, and is controlled as the power supply of the power amplifier power supply, it is that the power amplifier is powered to make magnitude of voltage corresponding to its output；Wherein, the mapping relations of the power and voltage are when the power of power amplifier output is setting value, the operating voltage of the power amplifier is accordingly reduced, but still ensure that the set of the corresponding relation of the minimum and the set value of the power when power that the power amplifier exports can keep the setting value constant.The invention further relates to a kind of device for realizing the above method.Implement a kind of method and device of hoisting power efficiency of amplitude of the present invention, have the advantages that：Its supply voltage can be adjusted, efficiency is higher.
Description
Technical field
The present invention relates to radio-frequency transmissions field, a kind of method more specifically to hoisting power efficiency of amplitude and
Device.
Background technology
At present, the application of REID has reached its maturity with popularization and extensively, radio-frequency identification reader/writer has largely
Hand-held class product, use is all battery powered.Battery powered is stricter to the power consumption requirements of complete machine, the complete machine energy of reduction
Consumption, strengthen battery durable ability and stand-by time.In general, in handheld wireless device, the consumption of Overall Power Consumption is mostly
Power Amplifier Unit is concentrated on, if the operating efficiency of energy hoisting power amplifier, and then the power consumption of complete machine could be reduced.Tradition
The operating voltage of read write line power amplifier be all integrally fixed at a constant value, to ensure that power amplifier output is enough
Power.Although such set the normal work for being able to ensure that hand-held class product, in most cases, power amplifier
Or some unnecessary energy can be consumed.For example, in some cases, it have to not actually maintain power amplifier
Setting voltage can ensure that its power output is constant.Therefore, in the prior art, relative to the supply voltage of power amplifier
For, sufficiently do not applied or said that the efficiency of its power consumption is not high.
The content of the invention
The technical problem to be solved in the present invention is, for prior art above-mentioned power amplifier supply voltage not
A kind of a kind of the defects of becoming, be inefficient, there is provided hoisting power that supply voltage of power amplifier can be adjusted, efficiency is higher
The method and device of efficiency of amplitude.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of side of hoisting power efficiency of amplitude
Method, comprise the following steps：
Measurement obtains the power output of current power amplifier, is closed by inquiring about the power being previously stored and voltage mapping
System, obtains the voltage value of the power amplifier, and is controlled as the power supply of the power amplifier power supply, makes its defeated
Magnitude of voltage is powered for the power amplifier corresponding to going out；
Wherein, the mapping relations of the power and voltage are when the power of power amplifier output is setting value, make institute
The operating voltage for stating power amplifier accordingly reduces, but still ensures that the power of the power amplifier output can keep the setting
The set of the corresponding relation of minimum and the set value of the power when being worth constant.
Further, the set value of the power is evenly distributed on the power amplifier according to the stepping length of setting
Between peak power output value and minimum output power value.
Further, the set for obtaining the corresponding relation comprises the following steps：
A) the radio frequency input by the power amplifier and supply voltage, which are set, arrives maximum, obtains the power amplifier
Rated maximum power value；
B) reduce the radio frequency input value of the power amplifier, the radio frequency output valve of the power amplifier is reduced one and set
Fixed step value；Then reduce the voltage value of the power amplifier, the power output of the power amplifier is met this
The minimum requirements of set value of the power, the minimum voltage value for making the set value of the power and obtaining form contrast relationship；
C) judge whether the radio frequency output valve of current power amplifier is less than minimum radio frequency output valve, in this way, exit；Such as
It is no, jump to step B).
Further, the supply voltage of the power amplifier includes supply voltage and quiescent point voltage.
Further, the step B) further comprise：
B11 the supply voltage value) is reduced so that the radio frequency output of the power amplifier is equal to presently described setting work(
Rate value, obtained current power magnitude of voltage is recorded, and it is formed mapping relations with the current setting performance number；Then increase
The supply voltage value, the radio frequency output valve is set to be more than the percentage of one setting of the current setting performance number；
B12 the quiescent point magnitude of voltage) is reduced so that the radio frequency output of the power amplifier is less than presently described
Performance number is set, records obtained current static working point magnitude of voltage, and it is formed with the current setting performance number and maps
Relation；Then increase the quiescent point magnitude of voltage, the radio frequency output valve is more than the current setting performance number one
The percentage of setting；
B13) supply voltage value or quiescent point magnitude of voltage are finely adjusted, confirms and obtains the power supply electricity of minimum
Pressure value or quiescent point magnitude of voltage simultaneously replace the analog value in the mapping relations, obtain the mapping relations of the power points；So
Further reduce the radio frequency power output by the step-length of setting afterwards and perform step B11), next power points is carried out same
Operation.
Further, the step B13) further comprise：
B131) by step B11) in reduce the supply voltage obtained supply voltage value so that the power is put
The radio frequency output of big device is less than presently described setting performance number, records the first obtained current power magnitude of voltage, and make its replacement
Current power magnitude of voltage in obtained mapping relations；
B132) the current power magnitude of voltage and the first current power magnitude of voltage, it is equal as both, then enter one
Step reduces the radio frequency power output by the step-length of setting and performs step B)；As the first current power magnitude of voltage is more than institute
Current power magnitude of voltage is stated, then performs next step；
B133) by step B11) in reduce the quiescent point magnitude of voltage obtained quiescent point magnitude of voltage,
So that the radio frequency output of the power amplifier is less than presently described setting performance number, the first obtained current static working is recorded
Point magnitude of voltage, and it is substituted the current static working point magnitude of voltage in obtained mapping relations；
B134) the current static working point magnitude of voltage and the first current static working point magnitude of voltage, such as two
Person is equal, then further reduces the radio frequency power output by the step-length of setting and perform step B)；First is current quiet as described in
State quiescent potential value is more than the current static working point magnitude of voltage, then substitutes it current quiet in obtained mapping relations
State quiescent potential value and return to step B15).
Further, the step B) further comprise following steps：
B21 the radio frequency output valve for) reducing the power amplifier after a stepping length value is current radio frequency output valve,
Judge whether the current radio frequency output valve is more than or equal to a threshold value being previously set, in this way, perform step B22)；It is no
Then, step B23 is performed)；
B22 the magnitude of voltage of quiescent point voltage) is reduced, until the radio frequency output valve of the power amplifier is equal to described work as
Preceding radio frequency output valve, obtain current static working point magnitude of voltage；By the current radio frequency output valve and the current static working
Point magnitude of voltage forms mapping relations；Then next step is performed；
B23 the magnitude of voltage of supply voltage) is reduced, until the radio frequency output valve of the power amplifier is less than the current radio frequency
Output valve, obtain current power magnitude of voltage；The current radio frequency output valve and the current power magnitude of voltage are formed into mapping to close
System.
A kind of device for realizing the above method, including power amplifier voltage adjustment module, institute are further related in the present embodiment
State module be used for measure obtain the power output of current power amplifier, by inquiring about the power that is previously stored and voltage mapping pass
System, obtains the voltage value of the power amplifier, and is controlled as the power supply of the power amplifier power supply, makes its defeated
Magnitude of voltage is powered for the power amplifier corresponding to going out；
Wherein, the mapping relations of the power and voltage are obtained by map unit, and the mapping relations are to work as power amplifier
When the power of output is setting value, the operating voltage of the power amplifier is accordingly reduced, but still ensure that the power amplification
The collection of the corresponding relation of minimum and the set value of the power when power of device output can keep the setting value constant
Close.
Further, the map unit includes：
Maximum power setting module：Set for the radio frequency input by the power amplifier and supply voltage to maximum
Value, obtains the rated maximum power value of the power amplifier；
Mapping block：For reducing the radio frequency input value of the power amplifier, export the radio frequency of the power amplifier
Value reduces the step value of a setting；Then reduce the voltage value of the power amplifier, make the defeated of the power amplifier
Go out the minimum requirements that power meets the set value of the power, make the set value of the power and obtained minimum voltage value is formed pair
According to relation；
Minimum radio frequency exports judge module：For judging whether the radio frequency output valve of current power amplifier penetrates less than minimum
Frequency output valve, in this way, exit；It is such as no, the mapping block is called again.
Further, the mapping block further comprises：
Threshold decision submodule：For the radio frequency output valve of the power amplifier after a stepping length value will to be reduced
Current radio frequency output valve is arranged to, judges whether the current radio frequency output valve is more than or equal to a threshold value being previously set,
In this way, quiescent point submodule is called；Otherwise, supply voltage submodule is called；
Quiescent point submodule：For reducing the magnitude of voltage of quiescent point voltage, until penetrating for the power amplifier
Frequency output valve is equal to the current radio frequency output valve, obtains current static working point magnitude of voltage；By the current radio frequency output valve
Mapping relations are formed with the current static working point magnitude of voltage；Then next step is performed；
Supply voltage submodule：For reducing the magnitude of voltage of supply voltage, until the radio frequency output valve of the power amplifier
Less than the current radio frequency output valve, current power magnitude of voltage is obtained；By the current radio frequency output valve and the current power
Magnitude of voltage forms mapping relations；
Stepping submodule：For judging whether the current radio frequency output valve is defeated less than the minimum radio frequency of the power amplifier
Go out value, in this way, exit；As no, reduce a stepping length on the basis of current radio frequency output valve, and call threshold decision sub
Module.
Implement a kind of method and device of hoisting power efficiency of amplitude of the present invention, have the advantages that：Due to
The supply voltage for being supplied to lid power amplifier is adjusted according to the radio frequency power output of power amplifier so that the power
Amplifier can be in the case where maintaining current radio frequency power output, using minimum supply voltage, so that same in consumption
In the case of electric energy more than sample, the longer time can be maintained on identical radio frequency power output, is put so as to improve power
The efficiency of big device.Therefore, its supply voltage can adjust, efficiency it is higher.
Brief description of the drawings
Fig. 1 is that hoisting power amplifier is imitated in a kind of method and device embodiment of hoisting power efficiency of amplitude of the present invention
The radio frequency power output and the acquirement flow chart of supply voltage corresponding relation used during rate；
Fig. 2 be it is a kind of in the embodiment in the case of obtain the stream of a set value of the power and its minimum voltage corresponding relation
Cheng Tu；
Fig. 3 is the particular flow sheet of trim step in Fig. 2.
Fig. 4 is to obtain a set value of the power and its minimum voltage corresponding relation in the embodiment in another case
Flow chart；
Fig. 5 is the structural representation of device in the embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention is further illustrated.
As shown in figure 1, in a kind of method and device embodiment of hoisting power efficiency of amplitude of the present invention, pass through survey
The power output of current power amplifier is measured, by inquiring about the power that is previously stored and voltage mapping relations, described in acquirement
The voltage value of power amplifier, and the power supply of the power amplifier power supply is controlled as, make electricity corresponding to its output
Pressure value is powered for the power amplifier；Wherein, the mapping relations of the power and voltage are when the work(of power amplifier output
When rate is setting value, the operating voltage of the power amplifier is accordingly reduced, but still ensure that the power amplifier output
The set of the corresponding relation of minimum and the set value of the power when power can keep the setting value constant；The work(
Rate setting value is evenly distributed on the peak power output value of the power amplifier and minimum output according to the stepping length of setting
Between performance number.Fig. 1 then show in the above method obtain power amplifier a specific radio frequency power output value with
The flow of relation between the minimum supply voltage that can be selected under the performance number.In other words, in the present embodiment, pass through
The radio-frequency power value of current power amplifier output is obtained, is then found minimum corresponding to the radio-frequency power value being previously stored
Supply voltage, then control is the power supply of above-mentioned power amplifier power supply, it is exported above-mentioned minimum supply voltage, so as to realize
The output of power amplifier is neither influenceed, has the purpose that can save power consumption, so as to realize that the efficiency of power amplifier carries
Rise.In the present embodiment, the above-mentioned measurement to power amplifier output, special equipment can be used to carry out, for example, using work(
Rate meter, the mode of some output voltage for measuring the power amplifier can also be used to carry out, in the case of a kind of below, it is necessary to
The voltage measured is transformed to the radio frequency output valve of power amplifier by conversion or calculating.
Fig. 1 shows the process for obtaining above-mentioned minimum voltage in the present embodiment.As shown in figure 1, above-mentioned minimum voltage
Acquirement comprises the following steps：
Step S11 maximizes power amplifier output：In this step, the radio frequency of the power amplifier is inputted and power supply is electric
Pressure sets and arrives maximum, obtains the rated maximum power value of the power amplifier；That is, will be power supply in this step
It is supplied to the voltage Tiao Jiedao of the output end of power amplifier maximum, is typically maximum nominal value, then puts above-mentioned power
The intensity of the input signal of big device, it is also adjusted to the nominal value of maximum so that the power output of the power amplifier, reach most
Greatly.In the present embodiment, the regulation of above-mentioned supply voltage can be realized by programmable power supply, and is by signal generator
Above-mentioned power amplifier provides input signal, in order to adjust.
Step S12 reduces power amplifier input, its output power value is declined the stepping length for reaching a setting：At this in step
In rapid, by adjusting the output amplitude or power of above-mentioned signal source, reduce the radio frequency input value of the power amplifier, make the work(
The radio frequency output valve of rate amplifier reduces the step value of a setting.In general, the working range of power amplifier is by minimum
Power output and peak power output value determine, this scope be it is continuous, in the present embodiment, can be by multiple power points groups
Cheng Huo is represented, and when the power output of power amplifier is when on a power points, it is that the power amplifier supplies just to use minimum voltage corresponding to the point
Electricity.These power points are evenly distributed between above-mentioned peak power and minimum power.Between two adjacent power points away from
From, a referred to as stepping length value or a step value, such as 1dbm or 0.5dbm.In this step, exactly by power amplifier
Power output decreases below the power points by a current power points (when, the power points is maximum power value)
, on a power points adjacent thereto.
Step S13 adjusts the supply voltage of power amplifier, obtains minimum value, and corresponding with the output power value：In this step
In, reduce the voltage value of the power amplifier, the power output of the power amplifier is met the set value of the power
Minimum requirements, the minimum voltage value for making the set value of the power and obtaining form contrast relationship.
Step S14 current output power values are no less than power amplifier minimum output power, in this way, perform step S15；Otherwise, return
Step S12 is returned, the minimum power source voltage for carrying out next power points obtains.
Step S15 is exited：In this step, the acquirement of this minimum voltage is exited.
In the present embodiment, the supply voltage of the power amplifier includes supply voltage and quiescent point voltage.One
As for, the two voltages are to be provided respectively by the different port of power supply.In the prior art, power amplifier generally has two
Kind situation, one kind is that above-mentioned quiescent point voltage can change；And another kind is that quiescent point voltage is constant or substantially not
The situation of change.In the case where quiescent point voltage can change, above-mentioned two voltage is required for obtaining minimum value.Fig. 2 shows
The specific steps of minimum amount of voltage that corresponding to a power points are gone out in above-mentioned steps in this case to obtain.
In fig. 2, specifically include：
Step S21 obtains most descending supply voltage value corresponding to an output power value：In this step, the power supply is reduced
Magnitude of voltage so that the radio frequency output of the power amplifier is equal to presently described setting performance number, records obtained current power
Magnitude of voltage, and make itself and the current setting performance number form mapping relations or corresponding relation, that is, by this obtain it is current
Supply voltage value connects to current setting power or makes the two related；Then increase the supply voltage value, make described penetrate
Frequency output valve is more than the percentage of one setting of the current setting performance number, if for example, currently setting power is 10dbm,
Then regulating power source voltage is 10.5 or 11dbm, and this is the regulation for the ease of next step.
Step S22 obtains minimum static quiescent potential value corresponding to the output power value：In this step, in previous step
On the basis of rapid, reduce the quiescent point magnitude of voltage so that the radio frequency output of the power amplifier is less than presently described
Performance number is set, records obtained current static working point magnitude of voltage, and it is formed with the current setting performance number and maps
Relation；Then increase the quiescent point magnitude of voltage, the radio frequency output valve is more than the current setting performance number one
The percentage of setting；Here regulation is similar with previous step.
Step S23 obtains two magnitudes of voltage and is finely adjusted to above-mentioned：In this step, to the supply voltage value or static state
Quiescent potential value is finely adjusted, confirm and obtain minimum supply voltage value or quiescent point magnitude of voltage and replace described in reflect
The analog value penetrated in relation, obtain the mapping relations of the power points；Then it is further defeated by the step-length reduction radio frequency of setting
Go out power and perform step S12, same operation is carried out to next power points, to obtain according to the step value being previously set,
Obtain corresponding minimum voltage on all power points.
In the present embodiment, under the above situation, step S23 can also be further subdivided into more specifically, respectively to upper
State supply voltage and the step of quiescent point voltage is finely adjusted.Fig. 3 shows the detail further segmented.In Fig. 3
In, comprise the following steps：
Step S31 obtains band the first current power magnitude of voltage on the basis of obtained supply voltage value：In this step,
Reduce the supply voltage by the supply voltage value obtained in above-mentioned steps S21 so that the radio frequency of the power amplifier
Output is less than presently described setting performance number, and the supply voltage value for recording to obtain is the first current power magnitude of voltage, and replaces it
Current power magnitude of voltage in the mapping relations that generation obtains.
Whether the two is equal for step S32 comparisons, in this way, returns to step S12；Otherwise, next step is performed.In this step
In, what is compared is above-mentioned first current power magnitude of voltage and the current power magnitude of voltage before being replaced by.
Step S33 obtains the first current static working point electricity on the basis of the quiescent point magnitude of voltage originally obtained
Pressure value：In this step, the quiescent point voltage is reduced by the quiescent point magnitude of voltage obtained in step S22
Value so that the radio frequency output of the power amplifier is less than presently described setting performance number, records obtained quiescent point electricity
Pressure value is the first current static working point magnitude of voltage, and it is substituted the current static working point voltage in obtained mapping relations
Value.
Whether the two is equal for step S34 comparisons, in this way, returns to step S12；Otherwise, return to step S31.In this step
In, what is compared is above-mentioned first current static working point magnitude of voltage and the current static working point voltage before being replaced by
Value.
In the case of in the present embodiment another, i.e., when quiescent point voltage is basically unchanged, obtain a power
The specific steps of minimum amount of voltage that are simple corresponding to point, and Fig. 4 shows specific steps in this case, including：
Step S41 output power values are no less than given threshold, in this way, jump to step S43 execution；Otherwise, perform next
Step；At this in step, by the radio frequency output valve for reducing the power amplifier after a stepping length value currently to penetrate
Frequency output power value, judges whether the current radio frequency output power value is less than a threshold value being previously set, and in this way, performs step
Rapid S43；Otherwise, step S42 is performed；In this step, the threshold value of above-mentioned setting is a value being previously set, for example,
25dbm, more than the value, the power amplifier is represented possibly into saturation state, it is necessary to slightly be adjusted to quiescent point voltage.
In the present embodiment, above-mentioned given threshold is changed with the model of power amplifier.Powerful power amplifier, its threshold set
Value can more greatly.
Step S42 obtains most descending quiescent point magnitude of voltage corresponding to an output power value：In this step, reduce quiet
The magnitude of voltage of state quiescent potential, until the radio frequency output valve of the power amplifier is equal to the current radio frequency output valve, obtain
Current static working point magnitude of voltage；The current radio frequency output valve and current static working point magnitude of voltage are formed into mapping to close
System；Then next step is performed；
Step S43 obtains most descending supply voltage value corresponding to an output power value：In this step, supply voltage is reduced
Magnitude of voltage, until the radio frequency output valve of the power amplifier is less than the current radio frequency output valve, obtain current power voltage
Value；The current radio frequency output valve and the current power magnitude of voltage are formed into mapping relations.
In addition, as shown in figure 5, further relate to a kind of device for realizing the above method in the present embodiment, including power amplification
Device VRM Voltage Regulator Module 1, the module, which is used to measure, obtains the power output of current power amplifier, is previously stored by inquiry
Power and voltage mapping relations, obtain the voltage value of the power amplifier, and are controlled as the power amplifier
The power supply of power supply, it is that the power amplifier is powered to make magnitude of voltage corresponding to its output；Wherein, the mapping of the power and voltage
Relation is obtained by map unit 2, and the mapping relations are when the power of power amplifier output is setting value, put the power
The operating voltage of big device accordingly reduces, but when still ensuring that the power of the power amplifier output can keep the setting value constant
Minimum and the set value of the power corresponding relation set.
In the present embodiment, above-mentioned map unit 2 includes maximum power setting module 21, mapping block 22 and minimum radio frequency
Export judge module 23；Wherein, maximum power setting module 21 is used to input the radio frequency of the power amplifier and power supply is electric
Pressure sets and arrives maximum, obtains the rated maximum power value of the power amplifier；Mapping block 22 is put for reducing the power
The radio frequency input value of big device, the radio frequency output valve of the power amplifier is set to reduce the step value of a setting；Then described in reducing
The voltage value of power amplifier, the power output of the power amplifier is met the minimum requirements of the set value of the power, make
The set value of the power and obtained minimum voltage value form contrast relationship；Minimum radio frequency output judge module 23 is used to sentence
Whether the radio frequency output valve of disconnected current power amplifier is less than minimum radio frequency output valve, in this way, exits；It is such as no, institute is called again
State mapping block 22.
In addition, in the case of one kind in the present embodiment, the mapping block 22 further comprises threshold decision submodule
221st, quiescent point submodule 222 and supply voltage submodule 223；Wherein, threshold decision submodule 221 is used to that one will to be reduced
The radio frequency output valve of the power amplifier after individual stepping length value is arranged to current radio frequency output valve, judges described currently to penetrate
Whether frequency output valve is more than or equal to a threshold value being previously set, and in this way, calls quiescent point submodule 221；Otherwise, adjust
With supply voltage submodule 223；Quiescent point submodule 222 is used for the magnitude of voltage for reducing quiescent point voltage, until this
The radio frequency output valve of power amplifier is equal to the current radio frequency output valve, obtains current static working point magnitude of voltage；By described in
Current radio frequency output valve and current static working point magnitude of voltage form mapping relations；Then next step is performed；Power supply electricity
Pressure submodule 223 is used for the magnitude of voltage for reducing supply voltage, until the radio frequency output valve of the power amplifier is current less than described
Radio frequency output valve, obtain current power magnitude of voltage；The current radio frequency output valve and the current power magnitude of voltage are formed and reflected
Penetrate relation.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. method of hoisting power efficiency of amplitude, it is characterised in that comprise the following steps：Measurement obtains the power output of current power amplifier, by inquiring about the power being previously stored and voltage mapping relations, takes The voltage value of the power amplifier is obtained, and is controlled as the power supply of the power amplifier power supply, makes its output pair The magnitude of voltage answered is powered for the power amplifier；Wherein, the mapping relations of the power and voltage are when the power of power amplifier output is setting value, make the work( The operating voltage of rate amplifier accordingly reduces, but still ensures that the power of the power amplifier output can keep the setting value not The set of the corresponding relation of minimum and the set value of the power during change.
- 2. the method for hoisting power efficiency of amplitude according to claim 1, it is characterised in that the set value of the power is pressed It is evenly distributed on according to the stepping length of setting between the peak power output value of the power amplifier and minimum output power value.
- 3. the method for hoisting power efficiency of amplitude according to claim 2, it is characterised in that obtain the corresponding relation Set comprise the following steps：A) the radio frequency input by the power amplifier and supply voltage, which are set, arrives maximum, obtains the specified of the power amplifier Maximum power value；B) reduce the radio frequency input value of the power amplifier, make one setting of radio frequency output valve reduction of the power amplifier Step value；Then reduce the voltage value of the power amplifier, the power output of the power amplifier is met the power The minimum requirements of setting value, the minimum voltage value for making the set value of the power and obtaining form contrast relationship；C) judge whether the radio frequency output valve of current power amplifier is less than minimum radio frequency output valve, in this way, exit；As no, jump Go to step B).
- 4. the method for hoisting power efficiency of amplitude according to claim 3, it is characterised in that the power amplifier Supply voltage includes supply voltage and quiescent point voltage.
- 5. the method for hoisting power efficiency of amplitude according to claim 4, it is characterised in that the step B) further Including：B11 the supply voltage value) is reduced so that the radio frequency output of the power amplifier is equal to presently described setting power Value, records obtained current power magnitude of voltage, and it is formed mapping relations with the current setting performance number；Then institute is increased Supply voltage value is stated, the radio frequency output valve is more than the percentage of one setting of the current setting performance number；B12 the quiescent point magnitude of voltage) is reduced so that the radio frequency output of the power amplifier is less than presently described setting Performance number, obtained current static working point magnitude of voltage is recorded, and it is formed mapping relations with the current setting performance number； Then increase the quiescent point magnitude of voltage, the radio frequency output valve is more than described current one setting of setting performance number Percentage；B13) supply voltage value or quiescent point magnitude of voltage are finely adjusted, confirms and obtains the supply voltage value of minimum Or quiescent point magnitude of voltage and the analog value in the mapping relations is replaced, obtain the mapping relations of the power points；Then enter One step reduces the radio frequency power output by the step-length of setting and performs step B11), same behaviour is carried out to next power points Make.
- 6. the method for hoisting power efficiency of amplitude according to claim 3, it is characterised in that the step B13) enter one Step includes：B131) by step B11) in reduce the supply voltage obtained supply voltage value so that the power amplifier Radio frequency output be less than presently described setting performance number, record the first obtained current power magnitude of voltage, and obtain its replacement Mapping relations in current power magnitude of voltage；B132) the current power magnitude of voltage and the first current power magnitude of voltage, it is equal as both, then further press The step-length of setting reduces the radio frequency power output and performs step B)；Work as described in being more than the first current power magnitude of voltage Preceding supply voltage value, then perform next step；B133) by step B11) in reduce the quiescent point magnitude of voltage obtained quiescent point magnitude of voltage so that The radio frequency output of the power amplifier is less than presently described setting performance number, records obtained the first current static working point electricity Pressure value, and it is substituted the current static working point magnitude of voltage in obtained mapping relations；B134) the current static working point magnitude of voltage and the first current static working point magnitude of voltage, such as the two phase Deng then further reducing the radio frequency power output by the step-length of setting and perform step B)；Such as the first current static work Make point magnitude of voltage and be more than the current static working point magnitude of voltage, then it is substituted the current static work in obtained mapping relations Make point magnitude of voltage and return to step B15).
- 7. the method for hoisting power efficiency of amplitude according to claim 4, it is characterised in that the step B) further Comprise the following steps：B21 the radio frequency output valve for) reducing the power amplifier after a stepping length value is current radio frequency output valve, is judged Whether the current radio frequency output valve is more than or equal to a threshold value being previously set, and in this way, performs step B22)；Otherwise, hold Row step B23)；B22 the magnitude of voltage of quiescent point voltage) is reduced, until the radio frequency output valve of the power amplifier is currently penetrated equal to described Frequency output valve, obtain current static working point magnitude of voltage；By the current radio frequency output valve and current static working point electricity Pressure is worth to form mapping relations；Then next step is performed；B23 the magnitude of voltage of supply voltage) is reduced, until the radio frequency output valve of the power amplifier exports less than the current radio frequency Value, obtains current power magnitude of voltage；The current radio frequency output valve and the current power magnitude of voltage are formed into mapping relations.
- 8. a kind of device for realizing hoisting power efficiency of amplitude method as claimed in claim 1, it is characterised in that including work( Rate amplifier VRM Voltage Regulator Module, the module, which is used to measure, obtains the power output of current power amplifier, by inquiring about thing The power and voltage mapping relations first stored, obtains the voltage value of the power amplifier, and be controlled as the work( The power supply of rate amplifier power supply, it is that the power amplifier is powered to make magnitude of voltage corresponding to its output；Wherein, the mapping relations of the power and voltage are obtained by map unit, and the mapping relations are when power amplifier exports Power when being setting value, the operating voltage of the power amplifier is accordingly reduced, but still ensure that the power amplifier is defeated The set of the corresponding relation of minimum and the set value of the power when power gone out can keep the setting value constant.
- 9. device according to claim 8, it is characterised in that the map unit includes：Maximum power setting module：Set for the radio frequency input by the power amplifier and supply voltage and arrive maximum, obtained To the rated maximum power value of the power amplifier；Mapping block：For reducing the radio frequency input value of the power amplifier, subtract the radio frequency output valve of the power amplifier The step value of a few setting；Then reduce the voltage value of the power amplifier, make the output work of the power amplifier Rate meets the minimum requirements of the set value of the power, and the minimum voltage value for making the set value of the power and obtaining forms control pass System；Minimum radio frequency exports judge module：It is defeated whether the radio frequency output valve for judging current power amplifier is less than minimum radio frequency Go out value, in this way, exit；It is such as no, the mapping block is called again.
- 10. device according to claim 9, it is characterised in that the mapping block further comprises：Threshold decision submodule：For the radio frequency output valve for reducing the power amplifier after a stepping length value to be set For current radio frequency output valve, judge whether the current radio frequency output valve is more than or equal to a threshold value being previously set, in this way, Call quiescent point submodule；Otherwise, supply voltage submodule is called；Quiescent point submodule：For reducing the magnitude of voltage of quiescent point voltage, until the radio frequency of the power amplifier is defeated Go out value and be equal to the current radio frequency output valve, obtain current static working point magnitude of voltage；By the current radio frequency output valve and institute State current static working point magnitude of voltage and form mapping relations；Then next step is performed；Supply voltage submodule：For reducing the magnitude of voltage of supply voltage, until the radio frequency output valve of the power amplifier is less than The current radio frequency output valve, obtains current power magnitude of voltage；By the current radio frequency output valve and the current power voltage Value forms mapping relations.
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