CN102394586A - Power amplifier voltage-regulating method and communication terminal equipment - Google Patents
Power amplifier voltage-regulating method and communication terminal equipment Download PDFInfo
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- CN102394586A CN102394586A CN2011103423112A CN201110342311A CN102394586A CN 102394586 A CN102394586 A CN 102394586A CN 2011103423112 A CN2011103423112 A CN 2011103423112A CN 201110342311 A CN201110342311 A CN 201110342311A CN 102394586 A CN102394586 A CN 102394586A
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Abstract
The embodiment of the invention provides power amplifier voltage-regulating method and communication terminal equipment, relates to the communication field, and efficiently reduces PA power consumption in the communication terminal equipment. The power amplifier voltage-regulating method comprises the steps of calibrating the lowest working voltage of a power amplifier on one board based on the radio frequency indexes at the maximum power of the board, and providing the lowest working voltage for the power amplifier. The embodiment of the invention is used in the communication terminal equipment.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of power amplifier pressure regulation method and communication terminal equipment.
Background technology
PA (power amplifier, power amplifier) is meant the amplifying circuit that can export high-power signal.Usually comprise multistage amplifier circuit in the electronic equipment; Except small-signal being carried out the preamplifying circuit of voltage amplification; Its output stage generally also will drive certain load; Like loud speaker, relay, motor, instrument, deflecting coil etc., driving these loads all needs certain power, therefore needs the power amplification circuit of ability amplifying signal.
In WCDMA (Wideband Code Division Multiple Access, WCDMA) mobile phone and other WCDMA communication terminal equipment, the power consumption on PA is bigger at present.
Summary of the invention
Embodiments of the invention provide a kind of power amplifier pressure regulation method and communication terminal equipment, effectively reduce the power consumption of PA in the communication terminal equipment.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, a kind of power amplifier pressure regulation method is provided, comprises:
RF index during according to the veneer maximum power, the minimum operating voltage of calibrating out power amplifier on the veneer;
For said power amplifier provides said minimum operating voltage.
On the one hand, a kind of communication terminal device is provided, comprises the power amplifier on veneer and the veneer, also comprise:
Voltage control unit, the RF index when being used for, the minimum operating voltage of calibrating out power amplifier on the veneer according to the veneer maximum power;
The voltage feed unit is used to said power amplifier said minimum operating voltage is provided.
The power amplifier pressure regulation method that the embodiment of the invention provides; RF index during according to the veneer maximum power; Calibrate out the minimum operating voltage of power amplifier on the veneer; And for power amplifier provides this minimum operating voltage, so the power consumption of power amplifier under minimum operating voltage is minimum, thus the power consumption of communication terminal equipment intermediate power amplifier reduced effectively.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of power amplifier pressure regulation method flow chart that Fig. 1 provides for the embodiment of the invention;
The power amplifier pressure regulation method practical implementation flow chart of steps that Fig. 2 provides for the embodiment of the invention;
Fig. 3 for only adopt APT method, PA pressure regulation method combine with the APT method mobile phone power P and PA voltage V concern sketch map.
The structural representation of a kind of mobile terminal device that Fig. 4 provides for the embodiment of the invention;
Fig. 5 is the voltage control unit structural representation among Fig. 4.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
A kind of power amplifier pressure regulation method that the embodiment of the invention provides, as shown in Figure 1:
S101, the RF index during according to the veneer maximum power, the minimum operating voltage of calibrating out power amplifier on the veneer.
S102, this minimum operating voltage is provided for power amplifier.
The power amplifier pressure regulation method that the embodiment of the invention provides; RF index during according to the veneer maximum power; Calibrate out the minimum operating voltage of power amplifier on the veneer; And for power amplifier provides this minimum operating voltage, so the power consumption of power amplifier under minimum operating voltage is minimum, thus the power consumption of communication terminal equipment intermediate power amplifier reduced effectively.
Wherein, calibrate out among the step S101 that the minimum operating voltage of power amplifier can comprise again on the veneer:
Veneer power amplifier initialization voltage is set.
Under veneer was in maximum power state, whether the RF index that reads and detect veneer was lower than preset radio frequency threshold value.
If the RF index of veneer is not less than the radio frequency threshold value; Then will be after deducting a preset step-length magnitude of voltage on the work at present voltage basis; The modified model operating voltage that obtains is loaded on the power amplifier of veneer; And whether the RF index that detects veneer be lower than the radio frequency threshold value, repeats this step until being lower than the radio frequency threshold value.
If the RF index of veneer is lower than the radio frequency threshold value, then on work at present voltage basis, increase a preset step-length magnitude of voltage, to obtain minimum operating voltage.
Therefore the minimum operating voltage of power amplifier can change along with the variation of the RF index of veneer, thereby makes power amplifier be in the operating state of low-power consumption always.
Special, above-mentioned preset radio frequency threshold value can be artificial the setting, and expression mobile terminal device RF index satisfies the value range of job requirement, and it is set rule and decides because of concrete mobile terminal device.
The power amplifier pressure regulation method practical implementation step that the embodiment of the invention provides is as shown in Figure 2.
S201, veneer power amplifier initialization voltage is set.
S202, under veneer is in maximum power state, read the RF index of veneer.
Whether the RF index of S203, detection veneer is lower than preset radio frequency threshold value.
If the RF index of veneer is not less than the radio frequency threshold value, execution in step S204 then, if the RF index of veneer is lower than the radio frequency threshold value, execution in step S206 then.
S204, on work at present voltage basis, deduct a preset step-length magnitude of voltage, the type that is improved operating voltage.
S205, the modified model operating voltage that obtains is loaded on the power amplifier of veneer.
After the modified model operating voltage is loaded on the power amplifier of veneer, turn to step S202.
Increase a preset step-length magnitude of voltage on S206, the work at present voltage basis, to obtain minimum operating voltage.
S207, minimum operating voltage is provided for power amplifier.It is the minimum operating voltage of S206 gained.
In the prior art, the operating voltage of power amplifier can be 3.7V, and its minimum operating voltage can be less than 3.7V.Example, veneer power amplifier initialization voltage U is set
0Be 3.7V, preset here step-length magnitude of voltage can be set to 0.1V, under veneer is in maximum power state, reads and detect the RF index of veneer.If the RF index of veneer is lower than the radio frequency threshold value, then obtain minimum operating voltage U
L=U
0+ 0.1V.If the RF index of veneer is not less than the radio frequency threshold value, then modified model operating voltage U
1=U
0-0.1V is with modified model operating voltage U
1Be loaded on the power amplifier of veneer, read and detect the RF index of veneer once more,, obtain new modified model operating voltage U once more if the RF index of veneer still is not less than the radio frequency threshold value
2=U
1-0.1V repeats above-mentioned loading, reads, detects step, is lower than the radio frequency threshold value until the RF index of veneer, and at this moment, work at present voltage is U
n, then minimum operating voltage U
L=U
n+ 0.1V.
Need to prove that when practical application, owing to before the veneer of UE (User Equipment, subscriber equipment) carries out minimum operating voltage calibration, need the debugging convergence, promptly power converges on a bit as far as possible in the whole frequency.Can in whole frequency, get high, normal, basic three channels, find corresponding minimum operating voltage respectively, get the ceiling voltage in three minimum operating voltages of gained in three channels, be i.e. the minimum operating voltage of the power amplifier of frequency range for this reason.
The power amplifier pressure regulation method that the embodiment of the invention provides can use at multiple mobile communication terminal, and example in mobile phone; Can be according to the RF index during the veneer maximum power in the mobile phone; The minimum operational voltage value of power amplifier writes in NV (non-volatile data memory, the nonvolatile memory) item of mobile phone on the veneer of calibrating out, when mobile phone is opened RF (Radio Frequency; Radio frequency) during function; Be when the corresponding function veneer is worked in the mobile phone, can from the NV item, read the minimum operational voltage value of the power amplifier that writes, according to the magnitude of voltage of being read; Adjust the voltage of the Switching Power Supply of programmable chip control in the mobile phone, the minimum operating voltage of power amplifier on the veneer is provided.
Because the difference of veneer self, the minimum operating voltage of the power amplifier that different veneer is calibrated out can be different, and the minimum operating voltage of the power amplifier that goes out for different power Amplifier Calibration on the same veneer can be different.Most of WCDMA mobile phones can be supported a plurality of frequency ranges of WCDMA respectively; When using the method that the embodiment of the invention provided; The power amplifier of each frequency range can corresponding minimum operating voltage point, and promptly to do can be different to the minimum operating voltage of the power amplifier of different frequency range.In the frequency range that veneer forms, maximum power and minimum operating voltage corresponding relationship are shown in table one:
| Frequency range | Minimum operating voltage |
| 1 | V1 |
| 2 | V2 |
| 。。 | 。。 |
Table one
Need to prove: first classifies frequency range as; Second classifies corresponding band power amplifier corresponding minimum operating voltage of when work as; Be defaulted as in maximum power point work.
Write data in the table one in the mobile phone NV item; When operating handset during, from the NV item, read the corresponding minimum operating voltage of this frequency range, according to programmable power supply IC (the Integrated Circuit of number adjustment in certain frequency range; Integrated circuit) voltage; Make power amplifier work in correspondent voltage, thereby reduce the power consumption of power amplifier as far as possible, and then reduce Overall Power Consumption.
Special, power amplifier pressure regulation method that the embodiment of the invention provides and APT (Average Power Trace, average power is followed the tracks of) combine to produce better effect.APT is a kind of technology of VCC2 (backup battery) voltage according to transmitting power adjustment PA, and promptly during transmit power variation, the voltage of VCC2 is also followed variation; When transmitting power was maximum target power, VCC2 got maximum, and prior art is generally 3.4V; But in fact owing to the reasons such as manufacture craft of PA, PA is when emission maximum target power, and 80% PA magnitude of voltage can be lower than 3.4V; Even some PA can be low to moderate 2.8V, and the low-power consumption meeting is more little more for its voltage.And the minimum voltage value of the embodiment of the invention can calibrate out maximum target power automatically the time combine with the APT method, can more effectively reduce the power consumption of mobile phone.As shown in Figure 3, the power P of APT scheme mobile phone and the relation of PA voltage V are only adopted in dotted line 30 expressions.The power P of the mobile phone that the PA pressure regulation method that the solid line 31 expression embodiment of the invention provide combines with the APT method to obtain and the relation of PA voltage V.As can be seen from Figure 3, before the A point, under the identical situation of the power P of mobile phone, the PA pressure regulation method combines more only to adopt APT method PA voltage V obviously to reduce with the APT method.Therefore the PA pressure regulation method that provides of the embodiment of the invention combines with the APT method, can more effectively reduce the power consumption of mobile phone.
Embodiment two
The communication terminal device that the embodiment of the invention provides; RF index in the time of can be according to the veneer maximum power; Calibrate out the minimum operating voltage of power amplifier on the veneer; And for power amplifier provides this minimum operating voltage, so the power consumption of power amplifier under minimum operating voltage is minimum, thus the power consumption of communication terminal equipment intermediate power amplifier reduced effectively.
Wherein, Voltage control unit 42 is connected with voltage feed unit 43, and simultaneously, voltage feed unit 43 is connected with power amplifier 41; So that voltage feed unit 43 obtains minimum operating voltage data from voltage control unit 42, and should minimum operating voltage be loaded on power amplifier 41.
Wherein, voltage control unit 43 comprises radio frequency detection sub-unit 431 and voltage calibration subelement 432, and is as shown in Figure 5.
Radio frequency detection sub-unit 431 can be used under veneer is in maximum power state, and whether the RF index that reads and detect veneer is lower than preset radio frequency threshold value;
On the one hand, voltage calibration subelement 432 can be used for when the RF index of veneer is lower than the radio frequency threshold value, on work at present voltage basis, increases a preset step-length magnitude of voltage, to obtain minimum operating voltage.
On the other hand, voltage calibration subelement 432 can also be used for when the RF index of veneer is lower than the radio frequency threshold value, will on work at present voltage basis, deduct a preset step-length magnitude of voltage, the type that is improved operating voltage.
On the one hand, voltage calibration subelement 432 can also be used to be provided with veneer power amplifier initialization voltage again.
Wherein, can be set to be 0.1 volt to preset step-length magnitude of voltage.
Simultaneously, in the process of the minimum operating voltage of calibration, the modified model operating voltage that voltage feed unit 42 can also be used for that voltage calibration subelement 432 is obtained among Fig. 4 is loaded on the power amplifier 41 of veneer.
Need to prove that the voltage feed unit 42 in the embodiment of the invention comprises Switching Power Supply, the DC (Direct Current, DC power supply)/DC transducer of programmable chip control.Switching Power Supply is kept regulated output voltage according to the time ratio that the control switch pipe turns on and off, and the minimum operating voltage of voltage calibration subelement 432 gained is provided for power amplifier.The DC/DC transducer is an electric pressure converter of effectively exporting fixed voltage behind the transformation input voltage, regulates the voltage of exporting.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of said claim.
Claims (11)
1. a power amplifier pressure regulation method is characterized in that, comprising:
RF index during according to the veneer maximum power, the minimum operating voltage of calibrating out power amplifier on the veneer;
For said power amplifier provides said minimum operating voltage.
2. method according to claim 1 is characterized in that, said minimum operating voltage of calibrating out power amplifier comprises:
Be under the maximum power state at said veneer, whether the RF index that reads and detect said veneer is lower than preset radio frequency threshold value;
If the RF index of said veneer is lower than said radio frequency threshold value, then on work at present voltage basis, increase a preset step-length magnitude of voltage, to obtain minimum operating voltage.
3. method according to claim 2 is characterized in that, on work at present voltage basis, increases a preset step-length magnitude of voltage, also comprises before the minimum operating voltage obtaining:
If the RF index of said veneer is not less than said radio frequency threshold value; Then will be after deducting a preset step-length magnitude of voltage on the work at present voltage basis; The modified model operating voltage that obtains is loaded on the power amplifier of said veneer; And whether the RF index that detects said veneer be lower than said radio frequency threshold value, repeats this step until being lower than said radio frequency threshold value.
4. according to claim 2 or 3 described methods, it is characterized in that, before whether the RF index that reads and detect said veneer is lower than preset radio frequency threshold value, also comprise:
Said veneer power amplifier initialization voltage is set.
5. method according to claim 4 is characterized in that,
Said operating voltage is 3.7V.
6. according to claim 2 or 3 described methods, it is characterized in that said preset step-length magnitude of voltage is 0.1 volt.
7. a communication terminal device comprises the power amplifier on veneer and the veneer, it is characterized in that, also comprises:
Voltage control unit, the RF index when being used for, the minimum operating voltage of calibrating out power amplifier on the veneer according to the veneer maximum power;
The voltage feed unit is used to said power amplifier said minimum operating voltage is provided.
8. according to the said communication terminal device of claim 7, it is characterized in that said voltage control unit comprises radio frequency detection sub-unit and voltage calibration subelement,
Said radio frequency detection sub-unit is used for being under the maximum power state at said veneer, and whether the RF index that reads and detect said veneer is lower than preset radio frequency threshold value;
When said voltage calibration subelement is used for RF index at said veneer and is lower than said radio frequency threshold value, on work at present voltage basis, increase a preset step-length magnitude of voltage, to obtain minimum operating voltage.
9. said according to Claim 8 communication terminal device; It is characterized in that; When said voltage calibration subelement also is used for RF index at said veneer and is not less than said radio frequency threshold value, will on work at present voltage basis, deduct a preset step-length magnitude of voltage, the type that is improved operating voltage.
10. according to the said communication terminal device of claim 9, it is characterized in that said voltage feed unit also is used for said modified model operating voltage is loaded on the power amplifier of said veneer.
11. according to Claim 8, each said communication terminal device in 9,10, it is characterized in that said voltage calibration subelement also is used to be provided with said veneer power amplifier initialization voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103423112A CN102394586A (en) | 2011-11-02 | 2011-11-02 | Power amplifier voltage-regulating method and communication terminal equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103423112A CN102394586A (en) | 2011-11-02 | 2011-11-02 | Power amplifier voltage-regulating method and communication terminal equipment |
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| CN102394586A true CN102394586A (en) | 2012-03-28 |
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| CN104052421A (en) * | 2013-03-15 | 2014-09-17 | 中兴通讯股份有限公司 | Method and apparatus for controlling voltage of power amplifier, and communication device |
| CN104703258A (en) * | 2013-12-06 | 2015-06-10 | 展讯通信（上海）有限公司 | User terminal and method and device for lowering power consumption of user terminal |
| WO2016015256A1 (en) * | 2014-07-30 | 2016-02-04 | 华为技术有限公司 | Method for controlling power supply voltage of power amplifier and electronic device |
| CN106060905A (en) * | 2016-05-17 | 2016-10-26 | 广东欧珀移动通信有限公司 | Method and apparatus for improving radio frequency power consumption of mobile terminal |
| CN107634725A (en) * | 2017-08-31 | 2018-01-26 | 深圳市远望谷信息技术股份有限公司 | A kind of method and device of hoisting power efficiency of amplitude |
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| CN106060905B (en) * | 2016-05-17 | 2019-06-11 | Oppo广东移动通信有限公司 | A kind of method and device improving mobile terminal radio frequency power consumption |
| CN107634725A (en) * | 2017-08-31 | 2018-01-26 | 深圳市远望谷信息技术股份有限公司 | A kind of method and device of hoisting power efficiency of amplitude |
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Application publication date: 20120328 |