CN105577201A - Transmitting power locking circuit, method and system - Google Patents
Transmitting power locking circuit, method and system Download PDFInfo
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- CN105577201A CN105577201A CN201510933260.9A CN201510933260A CN105577201A CN 105577201 A CN105577201 A CN 105577201A CN 201510933260 A CN201510933260 A CN 201510933260A CN 105577201 A CN105577201 A CN 105577201A
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- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Amplifiers (AREA)
Abstract
The invention provides a transmitting power locking circuit, method and system, and is applied to the radio frequency amplifier of a mobile phone. Power of the radio frequency amplifier is supplied by APT power supply equipment. The transmitting power locking method comprises the steps that current transmitting power outputted by the radio frequency amplifier is acquired; the relation between current transmitting power and preset transmitting power is judged; and power supply voltage of the APT power supply equipment is adjusted according to a relation table of voltage and transmitting power and the relation between current transmitting power and preset transmitting power so that transmitting power outputted by the radio frequency amplifier is enabled to be stabilized at preset transmitting power. The circuit is simpler so that flux power loss is saved, the working life of the radio frequency amplifier is enhanced, battery electricity of the mobile phone is saved and standby time is increased.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of lock-in circuit, the method and system that are applied to the transmitting power of mobile phone radio frequency amplifier.
Background technology
At present, the maximum transmission power of mobile phone radio frequency amplifier detection and locking all come by HDET (HighPowerDetector) circuit.
HDET circuit is concrete, and wherein, PA represents radio frequency amplifier, and Duplexer is duplexer as shown in Figure 1, and transmit and Received signal strength for isolation, to ensure that transmitting and receiving can normally work, Coupler is coupler.When using HDET circuit to detect, when PA works under high one-level power mode, utilize coupler to be coupled the little power of TX (transmitting terminal) part to transceiver, HDET utilizes the watt level now detected both can judge the watt level that now PA sends.For maximum power locking, can utilize and generate the power of a PA and linear form corresponding to HDET when calibrating, as shown in Figure 2.
At present, HDET testing circuit is utilized to be realize maximum power lock function in the following manner:
For 3G and 4G standard, require that the maximum power of launching is no more than 24db.For PA, if it works in high-power mode, so HDET circuit is just detected power under highpowermode, software can calculate in conjunction with the detecting value of HDET, and the method for calculating is as follows:
Generally set maximum power, such as: by 24db+2/-6, namely 18 ~ 26db is set as HDETSPAN (working range of HDET).The HDET value that 18db is corresponding is HDETOFF value, and being meant to this value is lower limit.When maximum transmission power is less than this HDETOFF, HDET will no longer work, because be now at least greater than the scope of 6db in addition from maximum power, also be unlikely to lock maximum power.The scope of HDET work locks from 18 ~ 26db maximum power exactly.
When needs obtain under order needs to be operated in maximum power, now mobile phone has two kinds of mode of operations:
1) during power <24db, as shown in Figure 2, the HDET of testing circuit is 3414, then corresponding transmitting power (POWER) is 19.1db, and obviously power is now significantly less than maximum power 24db, so control PA, allow it constantly increase transmitting power with 1db at every turn, software can set circulation pattern in the process, and ceaselessly detect until maximum power reaches about 24db, circulation pattern exits.So, the maximum power of circuit is just in locking mode.
2) during power >24db, as shown in Figure 2, the HDET of testing circuit is 14796, then corresponding transmitting power is 25.6db, be greater than maximum power, so by the comparison of testing result, can it allowed to reduce power by control PA, until power reaches 24db, power is in the lock state.
But, adopt HEDT testing circuit, need increase a HDET testing circuit at transceiver place and increase a coupler, cost and the fussy degree of system will certainly be increased like this.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of lock-in circuit of transmitting power, method and system, for solve mobile phone radio frequency amplifier in prior art maximum transmission power cannot by conveniently and realize at low cost lock problem.
For achieving the above object and other relevant objects, the invention provides a kind of lock-in circuit of transmitting power, be applied to the radio frequency amplifier of mobile phone, described lock-in circuit comprises: the transmitting terminal of signal transceiver is connected with the input of described radio frequency amplifier, the output of described radio frequency amplifier is connected with duplexer one end, and antenna is connected with the other two ends of described duplexer respectively with the receiving terminal of described signal transceiver; Wherein, described radio frequency amplifier is powered by APT power supply unit.
Present invention also offers a kind of locking means of transmitting power, be applied to the radio frequency amplifier of mobile phone, described radio frequency amplifier adopts APT power supply unit to provide power supply, and the locking means of described transmitting power comprises: step S10, gathers the current transmit power that described radio frequency amplifier exports; Step S20, judges the relation between described current transmit power and default transmitting power; Step S30, according to voltage and transmitting power relation table and the relation between described current transmit power and described default transmitting power, adjust the supply power voltage of described APT power supply unit, the transmitting power that described radio frequency amplifier is exported is stabilized in described default transmitting power.
In one embodiment of the invention, described voltage and transmitting power relation table generate in advance and preserve in memory.
In one embodiment of the invention, described voltage generates in accordance with the following steps from transmitting power relation table: utilize described APT power supply unit to provide different supply power voltages for described radio frequency amplifier; Under different supply power voltages, gather the transmitting power that corresponding described radio frequency amplifier exports; By supply power voltage and transmitting power one_to_one corresponding, generate described voltage and transmitting power relation table.
In one embodiment of the invention, in described step S20, the relation between described current transmit power and default transmitting power comprises described current transmit power and is greater than described default transmitting power, and described current transmit power is less than described default transmitting power.
In one embodiment of the invention, the supply power voltage of the described APT power supply unit of adjustment of described step S30, the transmitting power that described radio frequency amplifier is exported is stabilized in described default transmitting power and comprises: according to described voltage and transmitting power relation table, search the predeterminated voltage corresponding to described default transmitting power, search the current voltage corresponding to described current transmit power; Calculate the difference of described predeterminated voltage and described current voltage; According to the relation between described current transmit power and default transmitting power, described APT power supply unit adjustment supply power voltage: when described current transmit power is greater than described default transmitting power, described APT power supply unit reduces the voltage of described difference; When described current transmit power is less than described default transmitting power, described APT power supply unit increases the voltage of described difference.
In one embodiment of the invention, described default transmitting power is the maximum transmission power of described radio frequency amplifier.
Present invention also offers a kind of locking system of transmitting power, be applied to the radio frequency amplifier of mobile phone, described radio frequency amplifier adopts APT power supply unit to provide power supply, and the locking system of described transmitting power comprises: transmitting power acquisition module, for gathering the transmitting power of described radio frequency amplifier; Judge module, for judging the relation between the current transmit power that described transmitting power acquisition module gathers and default transmitting power; Adjustment control module, for adjusting the supply power voltage of described APT power supply unit according to the judged result of described judge module and voltage and transmitting power relation table; Memory module, for preserving described default transmitting power and described voltage and transmitting power relation table.
In one embodiment of the invention, described voltage generates in the following manner from transmitting power relation table: utilize described APT power supply unit to provide different supply power voltages; Described transmitting power acquisition module gathers the transmitting power corresponding to different supply power voltages; By supply power voltage and transmitting power one_to_one corresponding, generate described voltage and transmitting power relation table, and be kept in described memory module.
In one embodiment of the invention, described default transmitting power is the maximum transmission power of described radio frequency amplifier.
As mentioned above, lock-in circuit, the method and system of a kind of transmitting power of the present invention, be applied to the radio frequency amplifier of mobile phone, compared to traditional HDET circuit, design simpler, do not need that a coupling part is carried out to the transmitting power of the transmitting terminal of signal transceiver and be back to signal generator, save path power loss, do not need to carry out power measurement to the part of going back that is coupled by HDET circuit yet; Improve the working life of radio frequency amplifier, save cell-phone battery electric-charge quantity, add stand-by time.
Accompanying drawing explanation
Fig. 1 is shown as the schematic diagram of HDET circuit of the prior art.
Fig. 2 is shown as transmitting power that radio frequency amplifier in prior art the exports linear relationship table corresponding with HDET.
Fig. 3 is shown as the structural representation of the lock-in circuit of a kind of transmitting power disclosed in embodiments of the invention.
Fig. 4 is shown as the relation schematic diagram of supply power voltage under the APT supply power mode of the lock-in circuit of a kind of transmitting power disclosed in embodiments of the invention and transmitting power.
Fig. 5 is shown as the relation schematic diagram of supply power voltage under the BYPSS supply power mode of the lock-in circuit of a kind of transmitting power disclosed in embodiments of the invention and transmitting power.
Fig. 6 is shown as the schematic flow sheet of the locking means of a kind of transmitting power disclosed in the embodiment of the present invention.
Fig. 7 is shown as the structural representation of the locking system of a kind of transmitting power disclosed in the embodiment of the present invention.
Element numbers explanation
310 signal generators
320 radio frequency amplifiers
330 duplexers
340APT power supply unit
350 antennas
S10 ~ S30 step
710 transmitting power acquisition modules
720 judge modules
730 adjustment control modules
740 memory modules
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.It should be noted that, when not conflicting, the feature in following examples and embodiment can combine mutually.
Refer to accompanying drawing.It should be noted that, the diagram provided in following examples only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Embodiment 1
Present embodiment discloses a kind of lock-in circuit of transmitting power, be applied to the radio frequency amplifier of mobile phone.
As shown in Figure 3, the lock-in circuit of the transmitting power of the present embodiment comprises:
The transmitting terminal (TX) of signal transceiver 310 is connected with the input of radio frequency amplifier 320;
The output of radio frequency amplifier 320 is connected with one end of duplexer 330, and radio frequency amplifier 320 is undertaken powering by APT (AveragePowerTrace, average power is followed the tracks of) power supply unit 340;
Antenna 350 is connected with the other two ends of duplexer 330 respectively with the receiving terminal (RX) of signal transceiver 310.
The present embodiment, compared to traditional HEDT circuit, decreases the test section of the HDET in signal transceiver, and, also been removed the coupling unit in HEDT circuit, save path power loss.
Further, what the supply power mode of traditional radio frequency amplifier generally adopted is BYPSS powering mode.That is, its value being supplied to the supply power voltage VCC of radio frequency amplifier is all same magnitude of voltage, and the value of calibration, regardless of watt level, is all use the maximum voltage of VPH to supply radio frequency amplifier.That is tube power does not have much, and the voltage supplying radio frequency amplifier is all the time all the same.And the present embodiment adopts APT power supply unit to power, that is adopt APT powering mode.Namely, under different power launched by radio frequency amplifier, the voltage of supply radio frequency amplifier is also different, larger power can be avoided like this to discharge with the form of heat energy, improve radio frequency amplifier working life, save battery electric quantity, improve stand-by time under low-power.
Concrete under BYPASS powering mode, when the transmitting power RF_OUT that transmitting terminal exports is larger, the supply power voltage VCC of radio frequency amplifier is also large voltage as shown in Figure 4 and Figure 5, and when the transmitting power RF_OUT of transmitting terminal output is less, VCC can be small voltage.And when being in low power, if when power supply or large voltage, then the efficiency of radio frequency amplifier is not high, and the energy of more power supply consumes with the form of heat energy, so be all no small test to the temperature rise of complete machine and the life-span of battery.And under APT powering mode, the transmitting power RF_OUT that transmitting terminal exports and the supply power voltage VCC of radio frequency amplifier is satisfied certain linear relationship.Therefore adopt APT power supply unit, the transmitting power that radio frequency amplifier exports can be adjusted by supply power voltage.
It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Embodiment 2
Present embodiment discloses a kind of locking means of transmitting power, be applied to the radio frequency amplifier of mobile phone.Further, the locking means of the transmitting power of the present embodiment adopts the lock-in circuit disclosed in embodiment 1, and namely the power supply of radio frequency amplifier adopts APT power supply unit.
As shown in Figure 6, the locking means of the transmitting power of the present embodiment comprises:
Step S10, gathers the current transmit power that described radio frequency amplifier exports;
Step S20, judges the relation between described current transmit power and default transmitting power;
Default transmitting power can pre-set according to actual needs.In the present embodiment, default transmitting power is set to the maximum transmission power of radio frequency amplifier.
Relation between current transmit power and default transmitting power comprises: current transmit power is greater than default transmitting power; Current transmit power is less than default transmitting power; Current transmit power equals default transmitting power.
Step S30, according to voltage and transmitting power relation table and described single relation signed between transmitting power and described default transmitting power, adjust the supply power voltage of described APT power supply unit, the transmitting power that described radio frequency amplifier is exported is stabilized in described default transmitting power.
From APT powering mode in embodiment 1, there is certain linear relationship in the supply power voltage of the transmitting power that radio frequency amplifier exports and radio frequency amplifier.Therefore, before the locking carrying out transmitting power, to obtain in advance and preserve voltage and transmitting power relation table.
In the present embodiment, voltage and transmitting power relation table generate in accordance with the following steps:
APT power supply unit is utilized to provide different supply power voltages for described radio frequency amplifier; Such as; supply power voltage is 3300V, 3200V, 3100V, 3000V; namely supply power voltage provides according to this mode of successively decreasing; certainly; APT power supply unit also can according to the mode increased progressively to provide voltage; protection scope of the present invention is not limited thereto, as long as it provides different supply power voltages, all falls into protection scope of the present invention.
Under different supply power voltages, gather the transmitting power that corresponding described radio frequency amplifier exports;
By supply power voltage and transmitting power one_to_one corresponding, generate described voltage and transmitting power relation table.
By this voltage and transmitting power relation table, if after systems axiol-ogy to the supply power voltage VCC value of radio frequency amplifier, corresponding current output power value also can be known.This relation table automatically can be saved in corresponding NV memory after calibration completes.
When needing the transmitting power of radio frequency amplifier to be locked in maximum transmission power, only need transfer voltage in memory and transmitting power relation table comes corresponding voltage and transmission power level, thus carry out concrete adjustment.
Such as, when setting maximum power is 24db, namely predetermined power is 24db, and corresponding preset voltage value is VCC8, so:
If current transmit power is less than 24db, then need to look into the current voltage value that in access to memory, this power is corresponding, calculate the difference between this current voltage value and preset voltage value, then control APT power supply unit increases how many output voltages until VCC8, then the transmitting power that now radio frequency amplifier exports is 24db;
If current transmit power is greater than 24db, then need to look into the current voltage value that in access to memory, this power is corresponding, calculate the difference between this current voltage value and preset voltage value, then control APT power supply unit reduces how many to VCC8 by its output voltage, the 24db that locking current power makes its power output reach stable.
The step of various method divides above, just in order to be described clearly, can merge into a step or splitting some step, being decomposed into multiple step, when realizing as long as comprise identical logical relation, all in the protection range of this patent; To adding inessential amendment in algorithm or in flow process or introducing inessential design, but the core design not changing its algorithm and flow process is all in the protection range of this patent.
Embodiment 3
Present embodiment discloses a kind of locking system of transmitting power, be applied to the radio frequency amplifier of mobile phone, and radio frequency amplifier adopts APT power supply unit to provide power supply.
As shown in Figure 7, the locking system of the transmitting power of the present embodiment comprises:
Transmitting power acquisition module 710, for gathering the transmitting power of described radio frequency amplifier;
Judge module 720, for judging the relation between the current transmit power that described transmitting power acquisition module 710 gathers and default transmitting power;
Adjustment control module 730, for adjusting the supply power voltage of described APT power supply unit according to the judged result of described judge module 720 and voltage and transmitting power relation table;
Memory module 740, for preserving described default transmitting power and described voltage and transmitting power relation table.
Wherein, voltage and transmitting power relation table also generate by means of transmitting power acquisition module:
Utilize the supply power voltage that APT power supply unit provides different;
Described transmitting power acquisition module 710 gathers the transmitting power corresponding to different supply power voltages;
By supply power voltage and transmitting power one_to_one corresponding, generate described voltage and transmitting power relation table, and be kept in described memory module 740.
In the present embodiment, memory module 740 adopts NV memory.
In addition, in order to outstanding innovative part of the present invention, the module not too close with solving technical problem relation proposed by the invention is not introduced in the present embodiment, but this does not show the module that there is not other in the present embodiment.
Further, be not difficult to find, the present embodiment is the system embodiment corresponding with the first embodiment or the second embodiment, and the present embodiment can be worked in coordination with the first embodiment or the second embodiment and be implemented.The relevant technical details mentioned in first embodiment or the second embodiment is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in the present embodiment also can be applicable in the first embodiment or the second embodiment.
In sum, lock-in circuit, the method and system of a kind of transmitting power of the present invention, be applied to the radio frequency amplifier of mobile phone, compared to traditional HDET circuit, design simpler, do not need that a coupling part is carried out to the transmitting power of the transmitting terminal of signal transceiver and be back to signal generator, save path power loss, do not need to carry out power measurement to the part of going back that is coupled by HDET circuit yet; Improve the working life of radio frequency amplifier, save cell-phone battery electric-charge quantity, add stand-by time.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. the lock-in circuit of a transmitting power, be applied to the radio frequency amplifier of mobile phone, it is characterized in that: described lock-in circuit comprises: the transmitting terminal of signal transceiver is connected with the input of described radio frequency amplifier, the output of described radio frequency amplifier is connected with duplexer one end, and antenna is connected with the other two ends of described duplexer respectively with the receiving terminal of described signal transceiver; Wherein, described radio frequency amplifier is powered by APT power supply unit.
2. a locking means for transmitting power, is applied to the radio frequency amplifier of mobile phone, it is characterized in that, described radio frequency amplifier adopts APT power supply unit to provide power supply, and the locking means of described transmitting power comprises:
Step S10, gathers the current transmit power that described radio frequency amplifier exports;
Step S20, judges the relation between described current transmit power and default transmitting power;
Step S30, according to voltage and transmitting power relation table and the relation between described current transmit power and described default transmitting power, adjust the supply power voltage of described APT power supply unit, the transmitting power that described radio frequency amplifier is exported is stabilized in described default transmitting power.
3. the locking means of transmitting power according to claim 2, is characterized in that: described voltage and transmitting power relation table generate in advance and preserve in memory.
4. the locking means of transmitting power according to claim 3, is characterized in that: described voltage and transmitting power relation table generate in accordance with the following steps:
Described APT power supply unit is utilized to provide different supply power voltages for described radio frequency amplifier;
Under different supply power voltages, gather the transmitting power that corresponding described radio frequency amplifier exports;
By supply power voltage and transmitting power one_to_one corresponding, generate described voltage and transmitting power relation table.
5. the locking means of transmitting power according to claim 2, it is characterized in that: in described step S20, relation between described current transmit power and default transmitting power comprises described current transmit power and is greater than described default transmitting power, and described current transmit power is less than described default transmitting power.
6. the locking means of transmitting power according to claim 2, is characterized in that: the supply power voltage of the described APT power supply unit of adjustment of described step S30, and the transmitting power that described radio frequency amplifier is exported is stabilized in described default transmitting power and comprises:
According to described voltage and transmitting power relation table, search the predeterminated voltage corresponding to described default transmitting power, search the current voltage corresponding to described current transmit power;
Calculate the difference of described predeterminated voltage and described current voltage;
According to the relation between described current transmit power and default transmitting power, described APT power supply unit adjustment supply power voltage:
When described current transmit power is greater than described default transmitting power, described APT power supply unit reduces the voltage of described difference;
When described current transmit power is less than described default transmitting power, described APT power supply unit increases the voltage of described difference.
7. the locking means of transmitting power according to claim 2, is characterized in that: described default transmitting power is the maximum transmission power of described radio frequency amplifier.
8. a locking system for transmitting power, is applied to the radio frequency amplifier of mobile phone, it is characterized in that: described radio frequency amplifier adopts APT power supply unit to provide power supply, and the locking system of described transmitting power comprises:
Transmitting power acquisition module, for gathering the transmitting power of described radio frequency amplifier;
Judge module, for judging the relation between the current transmit power that described transmitting power acquisition module gathers and default transmitting power;
Adjustment control module, for adjusting the supply power voltage of described APT power supply unit according to the judged result of described judge module and voltage and transmitting power relation table;
Memory module, for preserving described default transmitting power and described voltage and transmitting power relation table.
9. the locking system of transmitting power according to claim 8, is characterized in that: described voltage and transmitting power relation table generate in the following manner:
Described APT power supply unit is utilized to provide different supply power voltages;
Described transmitting power acquisition module gathers the transmitting power corresponding to different supply power voltages;
By supply power voltage and transmitting power one_to_one corresponding, generate described voltage and transmitting power relation table, and be kept in described memory module.
10. the locking system of transmitting power according to claim 8, is characterized in that: described default transmitting power is the maximum transmission power of described radio frequency amplifier.
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| CN108306696A (en) * | 2018-01-17 | 2018-07-20 | 广东欧珀移动通信有限公司 | Electronic device and improvement aerial radiation refer to calibration method |
| CN108541060A (en) * | 2018-04-11 | 2018-09-14 | Oppo广东移动通信有限公司 | Radio-frequency power amplifier method of supplying power to, device, terminal and storage medium |
| CN110166004A (en) * | 2019-04-18 | 2019-08-23 | 翱捷科技(上海)有限公司 | A kind of power amplifier reduces the method and device of power consumption |
| CN118054758A (en) * | 2023-02-06 | 2024-05-17 | 中兴通讯股份有限公司 | Radio frequency power amplifier and control method of drain voltage of radio frequency power amplifier |
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