CN106301246B - Power supply circuit of radio frequency power amplifier and mobile terminal - Google Patents
Power supply circuit of radio frequency power amplifier and mobile terminal Download PDFInfo
- Publication number
- CN106301246B CN106301246B CN201610609376.1A CN201610609376A CN106301246B CN 106301246 B CN106301246 B CN 106301246B CN 201610609376 A CN201610609376 A CN 201610609376A CN 106301246 B CN106301246 B CN 106301246B
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- frequency power
- power supply
- power amplifiers
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/213—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only in integrated circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Amplifiers (AREA)
Abstract
The invention provides a power supply circuit of a radio frequency power amplifier and a mobile terminal, wherein the power supply circuit comprises: the antenna comprises a power supply, a plurality of radio frequency power amplifiers, a second switch circuit and an antenna, wherein the first switch circuit is arranged between the radio frequency power amplifiers and the power supply; at least one of the plurality of radio frequency power amplifiers is electrically connected with the power supply through a first switch circuit; the second switch circuit is connected between the plurality of radio frequency power amplifiers and the antenna, and at least one of the plurality of radio frequency power amplifiers is electrically connected with the antenna through the second switch circuit. According to the invention, the switch circuit is arranged between the power supply and the radio frequency power amplifier, so that the influence of the failed radio frequency power amplifier on the radio frequency amplifier in use is avoided, the stability of the power supply of the mobile terminal is improved, and the service life of the mobile terminal is prolonged.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a power supply circuit of a radio frequency power amplifier and a mobile terminal.
Background
Currently, as mobile terminals are continuously developed towards multi-mode and multi-frequency directions, the mobile terminals can support multiple frequency bands, but because the bandwidth of the rf power amplifier is limited, the mobile terminals generally include multiple rf power amplifiers.
Due to the large power consumption, complex process and the like of the radio frequency power amplifier, the overall failure rate of the radio frequency power amplifier is high. Sometimes, the failure of the radio frequency power amplifier can cause the power supply pin to be short-circuited or the ground resistance value to be reduced, so that the leakage current is generated when the system is powered on, and the leakage current is different from 1mA to 3A. Moreover, the radio frequency power amplifier loses efficacy and leaks electricity, so that the service time of a mobile terminal battery is shortened seriously, and when the leakage current is larger than the charging current in the pre-charging stage, the mobile terminal cannot be started after being shut down at a low power.
If the power supply pins of the radio frequency power amplifiers are connected to the switching power supply together after being short-circuited, when one radio frequency power amplifier fails to cause the ground resistance value of the power supply pin to be reduced, the failed radio frequency power amplifier can leak electricity as soon as the switching power supply is started, and if the leakage current is large, the power supply is unstable, so that the normal operation of other radio frequency power amplifiers is influenced.
Disclosure of Invention
The embodiment of the invention provides a power supply circuit of a radio frequency power amplifier and a mobile terminal, and aims to solve the problems of unstable battery power supply and shortened service time of the mobile terminal caused by failure and electric leakage of the radio frequency power amplifier in the prior art.
In one aspect, an embodiment of the present invention provides a power supply circuit for a radio frequency power amplifier, including: the antenna comprises a power supply, a plurality of radio frequency power amplifiers, a second switch circuit and an antenna, wherein a first switch circuit is arranged between the radio frequency power amplifiers and the power supply;
at least one of the plurality of radio frequency power amplifiers is electrically connected to the power supply through the first switching circuit;
the second switch circuit is connected between the plurality of radio frequency power amplifiers and the antenna, and at least one of the plurality of radio frequency power amplifiers is electrically connected with the antenna through the second switch circuit.
In another aspect, an embodiment of the present invention further provides a mobile terminal, including: the power supply circuit of the radio frequency power amplifier according to the above embodiment.
According to the power supply circuit of the radio frequency power amplifier provided by the embodiment of the invention, the switch circuit is arranged between the power supply and the radio frequency power amplifier, so that the influence of a failed radio frequency power amplifier on the radio frequency amplifier in use is avoided, the stability of the power supply of the mobile terminal is improved, and the service life of the mobile terminal is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic diagram of a power supply circuit of a radio frequency power amplifier according to a first embodiment of the present invention;
fig. 2 is a schematic diagram of a power supply circuit of a radio frequency power amplifier according to a second embodiment of the present invention;
fig. 3 is a schematic diagram of a power supply circuit of a radio frequency power amplifier according to a third embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
First embodiment
As shown in fig. 1, a power supply circuit for a radio frequency power amplifier according to a first embodiment of the present invention includes: a power supply 1, a plurality of radio frequency power amplifiers 2, a second switching circuit 3 and an antenna 4.
Here, the power supply 1 includes: battery power or switching power of the mobile terminal.
It should be noted that the frequency bands of the radio frequency signals amplified by the plurality of radio frequency power amplifiers are different. That is, the frequency band used by the mobile terminal, which is determined by detecting the surrounding network environment, is generally different each time.
Wherein, a first switch circuit 5 is arranged between the plurality of radio frequency power amplifiers 2 and the power supply 1.
Here, the first switch circuit 5 is connected between the power supply 1 and the plurality of radio frequency power amplifiers 2. At least one of the plurality of radio frequency power amplifiers 2 is electrically connected to the power supply 1 through the first switch circuit 5.
The second switch circuit 3 is connected between the plurality of radio frequency power amplifiers 2 and the antenna 4. At least one of the plurality of radio frequency power amplifiers 2 is electrically connected to the antenna 4 through the second switch circuit 3.
Preferably, as shown in fig. 1, the first switch circuit 5 in the embodiment of the present invention includes: and a single-pole multi-throw switch 51, wherein the moving end of the single-pole multi-throw switch 51 is connected with the power supply 1, and a plurality of fixed ends of the single-pole multi-throw switch 51 corresponding to the moving end are respectively connected with a plurality of radio frequency power amplifiers 2 in a one-to-one correspondence manner.
More specifically, the plurality of fixed terminals of the single-pole-multiple-throw switch 51 corresponding to the moving terminal are respectively connected to the power supply pins of the plurality of rf power amplifiers 2 in a one-to-one correspondence.
It should be noted that the moving end of the single-pole-multiple-throw switch 51, also called "pole", can control which specific rf power amplifier of the plurality of rf power amplifiers 2 is electrically connected to the power supply 1.
Here, the mobile terminal can control the moving terminal of the single-pole multi-throw switch 51 to selectively close to the power supply pin of the rf power amplifier 2 corresponding to the use frequency band of the mobile terminal according to the use frequency band of the mobile terminal, and at this time, the second switch circuit 3 is correspondingly connected to the output terminal of the rf power amplifier 2.
According to the power supply circuit of the radio frequency power amplifier provided by the embodiment of the invention, the switch circuit is arranged between the power supply and the radio frequency power amplifier, so that the influence of a failed radio frequency power amplifier on the radio frequency amplifier in use is avoided, the stability of the power supply of the mobile terminal is improved, and the service life of the mobile terminal is prolonged.
Second embodiment
As shown in fig. 2, a power supply circuit for a radio frequency power amplifier according to a second embodiment of the present invention includes: a power supply 1, a plurality of radio frequency power amplifiers 2, a second switching circuit 3 and an antenna 4.
Here, the power supply 1 includes: battery power or switching power of the mobile terminal.
It should be noted that the frequency bands of the radio frequency signals amplified by the plurality of radio frequency power amplifiers are different. That is, the frequency band used by the mobile terminal, which is determined by detecting the surrounding network environment, is generally different each time.
Wherein, a first switch circuit 5 is arranged between the plurality of radio frequency power amplifiers 2 and the power supply 1.
Preferably, in the embodiment of the present invention, the first switch circuit 5 includes a plurality of one-way switches 52, one ends of the plurality of one-way switches 52 are respectively connected to the power supply 1, and the other ends of the plurality of one-way switches 52 are respectively connected to the plurality of rf power amplifiers 2 in a one-to-one correspondence manner.
More specifically, the other ends of the one-way switches 52 are respectively connected to the power supply pins of the rf power amplifiers 2 in a one-to-one correspondence.
It should be noted that the mobile terminal may control one of the one-way switches 52 to be closed according to the frequency band of the mobile terminal, where the closed circuit switch is connected to the rf power amplifier 2 corresponding to the frequency band of the mobile terminal.
Of course, the mobile terminal may control two or more one-way switches of the plurality of one-way switches 52 to be closed according to the frequency band of the mobile terminal. At this time, it should be noted that when two or more than two single-way switches in the plurality of single-way switches 52 are closed, a combiner may be disposed between the radio frequency power amplifier 2 and the second switch circuit 3 corresponding thereto, the second switch circuit 3 is correspondingly connected to the output end of the combiner, and the radio frequency signal of the mobile terminal is transmitted through the antenna 4 via the output end of the combiner; a plurality of antennas may be correspondingly disposed, and the rf signals amplified by the corresponding rf power amplifiers 2 when two or more single switches of the plurality of single switches 52 are closed are transmitted through the plurality of antennas.
According to the power supply circuit of the radio frequency power amplifier provided by the embodiment of the invention, the radio frequency power amplifier can be flexibly selected by arranging the plurality of one-way switches between the power supply and the radio frequency power amplifier, the influence of a failed radio frequency power amplifier on the radio frequency amplifier in use is avoided, the stability of the power supply of the mobile terminal is improved, and the service life of the mobile terminal is prolonged.
Third embodiment
As shown in fig. 3, a power supply circuit for a radio frequency power amplifier according to a third embodiment of the present invention includes: a power supply 1, a plurality of radio frequency power amplifiers 2, a second switching circuit 3 and an antenna 4.
It should be noted that the frequency bands of the radio frequency signals amplified by the plurality of radio frequency power amplifiers are different. That is, the frequency band used by the mobile terminal, which is determined by detecting the surrounding network environment, is generally different each time.
Wherein, a first switch circuit 5 is arranged between the plurality of radio frequency power amplifiers 2 and the power supply 1.
Preferably, in the embodiment of the present invention, the first switch circuit 5 includes a plurality of one-way switches 52, one ends of the plurality of one-way switches 52 are respectively connected to the power supply 1, and the other ends of the plurality of one-way switches 52 are respectively connected to a first number of radio frequency power amplifiers in the plurality of radio frequency power amplifiers 2 in a one-to-one correspondence manner;
it should be noted that the other ends of the plurality of one-way switches 52 are respectively connected to a first number of radio frequency power amplifiers in the plurality of radio frequency power amplifiers 2 in a one-to-one correspondence manner, that is, the one-way switches 52 are not provided between all of the radio frequency power amplifiers 2 and the power supply 1.
Here, the first number is smaller than the number of the radio frequency power amplifiers 2 of the embodiment of the present invention.
The remaining number of the plurality of radio frequency power amplifiers 2 except the first number of radio frequency power amplifiers is electrically connected to the power supply 1.
It should be noted that the probability of failure of the first number of rf power amplifiers connected to the plurality of one-way switches 52 is greater than the preset probability of failure.
The failure probability of the remaining number of the plurality of radio frequency power amplifiers 2 except the first number of radio frequency power amplifiers is smaller than the preset failure probability.
Here, the preset failure probability is a historical failure probability of a radio frequency power amplifier provided on the mobile terminal, which is counted in advance.
According to the power supply circuit of the radio frequency power amplifier, the one-way switch is arranged between the power supply and the radio frequency power amplifiers, so that the cost is saved, the radio frequency power amplifiers can be flexibly selected, the influence of the failed radio frequency power amplifiers on the radio frequency amplifiers in use is avoided, the stability of the power supply of the mobile terminal is improved, and meanwhile, the service life of the mobile terminal is prolonged.
The embodiment of the invention also provides a mobile terminal which comprises the power supply circuit of the radio frequency power amplifier.
Here, the mobile terminal is a mobile phone, a tablet computer, a personal digital assistant, a vehicle-mounted computer, a music player, a laptop computer, or a navigator.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (2)
1. A supply circuit for a radio frequency power amplifier, comprising: a power supply (1), a plurality of radio frequency power amplifiers (2), a second switching circuit (3) and an antenna (4),
a first switch circuit (5) is arranged between the radio frequency power amplifiers (2) and the power supply (1);
at least one of the plurality of radio frequency power amplifiers (2) is electrically connected to the power supply (1) through the first switching circuit (5);
the second switch circuit (3) is connected between the plurality of radio frequency power amplifiers (2) and the antenna (4), and at least one of the plurality of radio frequency power amplifiers (2) is electrically connected with the antenna (4) through the second switch circuit (3);
the first switch circuit (5) comprises a plurality of single-circuit switches (52), one ends of the single-circuit switches (52) are respectively connected with the power supply (1), and the other ends of the single-circuit switches (52) are respectively connected with a first number of radio frequency power amplifiers in the radio frequency power amplifiers (2) in a one-to-one correspondence manner;
the rest radio frequency power amplifiers except the first radio frequency power amplifiers in the plurality of radio frequency power amplifiers (2) are electrically connected with the power supply (1);
wherein the failure probability of a first number of radio frequency power amplifiers connected to the plurality of one-way switches (52) is greater than a preset failure probability; the failure probability of the rest radio frequency power amplifiers except the first radio frequency power amplifiers in the plurality of radio frequency power amplifiers (2) is less than the preset failure probability; the preset failure probability is the historical failure probability of a radio frequency power amplifier arranged on the mobile terminal and counted in advance;
when two or more single-way switches of the plurality of single-way switches (52) are closed, a combiner is arranged between the radio frequency power amplifier (2) corresponding to the single-way switches and the second switch circuit (3); or, by arranging a plurality of antennas, the second switch circuit (3) is correspondingly connected to the output end of the combiner, and the radio-frequency signal is transmitted out through the antenna (4) through the output end of the combiner; or, the radio-frequency signals amplified by the corresponding radio-frequency power amplifiers (2) when two or more than two single-circuit switches in the plurality of single-circuit switches (52) are closed are transmitted out through the plurality of antennas.
2. A mobile terminal, comprising: a supply circuit for a radio frequency power amplifier as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609376.1A CN106301246B (en) | 2016-07-28 | 2016-07-28 | Power supply circuit of radio frequency power amplifier and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609376.1A CN106301246B (en) | 2016-07-28 | 2016-07-28 | Power supply circuit of radio frequency power amplifier and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106301246A CN106301246A (en) | 2017-01-04 |
| CN106301246B true CN106301246B (en) | 2020-06-05 |
Family
ID=57663048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610609376.1A Active CN106301246B (en) | 2016-07-28 | 2016-07-28 | Power supply circuit of radio frequency power amplifier and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106301246B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106535036B (en) * | 2017-01-20 | 2019-12-17 | 广州岳胜电子科技有限公司 | portable wireless power amplifier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1585292A (en) * | 2003-08-22 | 2005-02-23 | 智邦科技股份有限公司 | Radio frequency power controlling systems |
| CN201947223U (en) * | 2010-12-27 | 2011-08-24 | 中兴通讯股份有限公司 | Power-amplifying circuit and mobile terminal |
| CN103236870A (en) * | 2013-04-16 | 2013-08-07 | 环旭电子股份有限公司 | High-isolation circuit with LNA (low-noise amplifier) and method for improving isolation |
| CN105099484A (en) * | 2014-05-16 | 2015-11-25 | 美商微频股份有限公司 | Global frequency range RFFE module and system thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9319005B2 (en) * | 2012-07-13 | 2016-04-19 | Rf Micro Devices, Inc. | Multi-band/multi-mode power amplifier with signal path hardware sharing |
| GB2572891B (en) * | 2014-10-31 | 2020-01-08 | Skyworks Solutions Inc | A receiving system |
-
2016
- 2016-07-28 CN CN201610609376.1A patent/CN106301246B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1585292A (en) * | 2003-08-22 | 2005-02-23 | 智邦科技股份有限公司 | Radio frequency power controlling systems |
| CN201947223U (en) * | 2010-12-27 | 2011-08-24 | 中兴通讯股份有限公司 | Power-amplifying circuit and mobile terminal |
| CN103236870A (en) * | 2013-04-16 | 2013-08-07 | 环旭电子股份有限公司 | High-isolation circuit with LNA (low-noise amplifier) and method for improving isolation |
| CN105099484A (en) * | 2014-05-16 | 2015-11-25 | 美商微频股份有限公司 | Global frequency range RFFE module and system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106301246A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8265554B2 (en) | Communication device and method using human body | |
| CN100356700C (en) | Apparatus and method for monitoring antenna state of mobile station | |
| CN103384962B (en) | Antenna switch circuit and wireless terminal device | |
| CN101094430B (en) | Calibrating run device and method for terminal in dual modes | |
| US20140128007A1 (en) | Mobile device and tunable antenna therein | |
| CN102918707B (en) | Communication system has the node of switchable antenna function | |
| CN101884151A (en) | Portable radio device and battery pack configuration | |
| CN106301246B (en) | Power supply circuit of radio frequency power amplifier and mobile terminal | |
| CN105453443A (en) | Low noise amplifier module and method of implementation | |
| CN105099371A (en) | Systems, circuits and methods related to low power efficiency improvement in multi-mode multi-band power amplifiers | |
| CN212727021U (en) | Antenna structure and electronic equipment | |
| CN104809421B (en) | The method and apparatus of reading electronic labels | |
| CN203326990U (en) | Wireless communication device | |
| CN109348063B (en) | Wireless communication equipment and antenna switching circuit, method and system thereof | |
| CN101501706A (en) | Antenna based listen-before-talk apparatus, system and method | |
| CN114039558A (en) | Protection method and circuit of power amplifier and terminal | |
| CN204044568U (en) | There is the gsm module of double card list standby function | |
| US9608322B2 (en) | Electronic device having antenna | |
| CN105430727A (en) | Communication terminal and carrier aggregation mode setting method thereof | |
| CN100440406C (en) | Control apparatus for an end key and a portable terminal employing the same | |
| CN217037166U (en) | Radio frequency amplifying circuit, radio frequency system and wireless communication equipment | |
| KR102577995B1 (en) | High-power adaptive rf antenna tuning switch | |
| CN220492985U (en) | Radio frequency emission module and electronic equipment | |
| CN216793992U (en) | Antenna assembly and mobile terminal | |
| CN109302205A (en) | A kind of multi-functional pico RRU and implementation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |