CN107124098A - Isolated from power device and TD-SCDMA terminals - Google Patents
Isolated from power device and TD-SCDMA terminals Download PDFInfo
- Publication number
- CN107124098A CN107124098A CN201610099477.9A CN201610099477A CN107124098A CN 107124098 A CN107124098 A CN 107124098A CN 201610099477 A CN201610099477 A CN 201610099477A CN 107124098 A CN107124098 A CN 107124098A
- Authority
- CN
- China
- Prior art keywords
- module
- radio
- isolated
- power supply
- frequency
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- 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
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
-
- 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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1018—Means associated with receiver for limiting or suppressing noise or interference noise filters connected between the power supply and the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Abstract
The invention discloses a kind of isolated from power device and TD SCDMA terminals, isolated from power device, including radio-frequency module, baseband module and power supply module；The output end of power supply module is connected with radio-frequency module and baseband module, and isolated from power device also includes the isolation module for isolating radio-frequency module with the power supply of baseband module, and isolation module is arranged on the input of radio-frequency module.Isolation module includes resistance, inductance and electric capacity, and one end of resistance connects one end of power supply module, baseband module and electric capacity, and the other end of resistance passes through inductance connection radio-frequency module, the other end connection radio-frequency module of electric capacity.Isolated from power device and TD SCDMA terminals that the present invention is provided, as a result of the input in radio-frequency module, one isolation module is set, keep apart the power supply of radio-frequency module and baseband module, the interference of the high-frequency signal of radio-frequency module and baseband module is inhibited, so as to obtain the good stability of a system.
Description
Technical field
The invention belongs to mobile phone technique field, and in particular to a kind of isolated from power device and TD-SCDMA terminals.
Background technology
TD-SCDMA（Time Division-Synchronous Code
Division Multiple Access, the 3G (Third Generation) Moblie standard that China proposes）The hardware body framework of terminal and tradition 2G（Second generation, Generation Mobile Telecommunication System technology）The hardware body framework of terminal is essentially identical, i.e., be made up of baseband module and radio-frequency module.
Wherein, baseband module is mainly used in realizing the function such as simulation and digital baseband transmission system, protocol stack, operating system, operation application software, power management, charging, backlight, audio and peripherals administration；Radio-frequency module mainly realizes the functions such as up/down frequency conversion, filtering, low noise amplification, power amplification, the transmitting-receiving switching of analog baseband signal.
Referring to Fig. 1, the traditional design of 2G terminals includes power supply module 101, radio-frequency module 102 and baseband module 103.The radio-frequency module 102 and baseband module 103 are directly powered simultaneously by power supply module 101, and such radio-frequency module 102 and baseband module 103 are joined directly together on main supply path.
However, in the side of radio-frequency module 102, because of the isolation performance defect of radio frequency chip the radiofrequency signal produced during radio-frequency modulations may be made to be leaked to by power supply line in the electric power network on mainboard, so as to produce EMI（Electromagnetic
Interference, electromagnetic interference）Interference, serious can also produce radiation disturbance by electric power network radiation.
And in the side of baseband module 103, what it is due to baseband module processing is high-speed data signal, if the isolation of baseband chip is done badly and can be also transmitted to by power line on radio-frequency module 102, so as to cause the interference to radio-frequency module 102, the performance of radio-frequency module can be directly affected when serious.
Because 2G terminals have had the development of more than ten years, 2G technologies are very ripe, therefore above mentioned problem will not substantially occur.But in 3G（3rd-generation, 3rd generation mobile communication technology）Today that technology particularly TD-SCDMA technology has just been shown up prominently, because TD-SCDMA terminals typically use TD-SCDMA ＆ GSM（Global System for Mobile
Communications, global system for mobile communications）Bimodulus standard terminal, its complexity is higher, and 3G technology and chip maturity, and TD-SCDMA protocol processes, in itself than composite factors such as the data processing speeds of 2G more high speeds, above mentioned problem just seems especially prominent.
Thus prior art could be improved and improve.
The content of the invention
In view of in place of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of isolated from power device, the power supply of radio-frequency module and baseband module can be kept apart, suppress the interference of the high-frequency signal of radio-frequency module and baseband module.
In order to achieve the above object, this invention takes following technical scheme：
A kind of isolated from power device, it includes radio-frequency module, baseband module and the power supply module for providing supply voltage for the radio-frequency module and baseband module simultaneously；The output end of the power supply module is connected with the baseband module, the isolated from power device also includes the isolation module for isolating the radio-frequency module with the power supply of baseband module, and the isolation module is arranged between the input of the radio-frequency module and the output end of power supply module；Wherein, the isolation module includes resistance, inductance and electric capacity, and one end of the resistance connects one end of power supply module, baseband module and electric capacity, and the other end of the resistance passes through inductance connection radio-frequency module, the other end connection radio-frequency module of the electric capacity.
In described isolated from power device, the power supply module is lithium battery.
In described isolated from power device, the resistance of the resistance is 100 Ω.
In described isolated from power device, the capacitance of the electric capacity is 330uF.
In described isolated from power device, the inductance value of the inductance is 10mH.
A kind of TD-SCDMA terminals, it includes isolated from power device as described above.
Isolated from power device and TD-SCDMA terminals that the present invention is provided, as a result of the input in radio-frequency module, one isolation module is set, keep apart the power supply of radio-frequency module and baseband module, the interference of the high-frequency signal of radio-frequency module and baseband module is inhibited, so as to obtain the good stability of a system.Moreover, isolation module is using conventional electronic components such as resistance, inductance and electric capacity, circuit structure is simple, cost is low, improves the function of TD-SCDMA terminals.
Brief description of the drawings
Fig. 1 is the structural representation of existing 2G terminals.
Fig. 2 is the structural representation of isolated from power device of the present invention.
Embodiment
The present invention provides isolated from power device and TD-SCDMA terminals, to make the purpose of the present invention, technical scheme and effect clearer, clear and definite, referring to the drawings and gives an actual example that the present invention is described in more detail.It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
Referring to Fig. 2, Fig. 2 is the structural representation of isolated from power device of the present invention, it includes power supply module 201, radio-frequency module 202, baseband module 203 and isolation module 204.The output end of the power supply module 201 is connected with the input of the baseband module 203, for being that the radio-frequency module 202 and baseband module 203 provide supply voltage simultaneously.The isolation module 204 is arranged between the input of the radio-frequency module 201 and the output end of power supply module 201, for the power supply of the radio-frequency module 202 and baseband module 203 to be kept apart.
Now, voltage is provided to isolation module 204 and baseband module 203 simultaneously equivalent to power supply module 201, the voltage that power supply module 201 is exported is available to the radio-frequency module 202 after isolation module 204 " filtering ".So the high-frequency signal of radio-frequency module 202 and baseband module 203 will not be interfered by power supply module 201, so as to obtain the good stability of a system.
The power supply module 201 is lithium battery.The isolation module includes resistance R1, inductance L1 and electric capacity C1, one end of the resistance R1 connects power supply module 201, baseband module 203 and electric capacity C1 one end, the other end of the resistance R1 passes through inductance L1 connections radio-frequency module 202, the other end connection radio-frequency module 202 of the electric capacity C2.Isolation module is using conventional electronic components such as resistance, inductance and electric capacity, and circuit structure is simple, cost is low, improves the function of TD-SCDMA terminals.
In the particular embodiment, the resistance of the resistance is 100 Ω, and the capacitance of the electric capacity is 330uF, and the inductance value of the inductance is 10mH.Certainly, resistance R1, inductance L1 and electric capacity C1 can also select other parameters as needed.
Based on above-mentioned isolated from power device, the embodiment of the present invention, which is also corresponded to, provides a kind of TD-SCDMA terminals, and the terminal includes isolated from power device, in view of the isolated from power device has hereinbefore been described later in detail, will not be repeated here.
It is understood that for those of ordinary skills, equivalent substitution or change can be subject to technique according to the invention scheme and its inventive concept, and all these changes or replacement should all belong to the protection domain of appended claims of the invention.
Claims (6)
1. a kind of isolated from power device, it includes radio-frequency module, baseband module and the power supply module for providing supply voltage for the radio-frequency module and baseband module simultaneously；The output end of the power supply module is connected with the baseband module, it is characterized in that, the isolated from power device also includes the isolation module for isolating the radio-frequency module with the power supply of baseband module, and the isolation module is arranged between the input of the radio-frequency module and the output end of power supply module；Wherein, the isolation module includes resistance, inductance and electric capacity, and one end of the resistance connects one end of power supply module, baseband module and electric capacity, and the other end of the resistance passes through inductance connection radio-frequency module, the other end connection radio-frequency module of the electric capacity.
2. isolated from power device according to claim 1, it is characterised in that the power supply module is lithium battery.
3. isolated from power device according to claim 1, it is characterised in that the resistance of the resistance is 100 Ω.
4. isolated from power device according to claim 1, it is characterised in that the capacitance of the electric capacity is 330uF.
5. isolated from power device according to claim 1, it is characterised in that the inductance value of the inductance is 10mH.
6. a kind of TD-SCDMA terminals, it is characterised in that including the isolated from power device as described in claim 1-5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099477.9A CN107124098A (en) | 2016-02-24 | 2016-02-24 | Isolated from power device and TD-SCDMA terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099477.9A CN107124098A (en) | 2016-02-24 | 2016-02-24 | Isolated from power device and TD-SCDMA terminals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107124098A true CN107124098A (en) | 2017-09-01 |
Family
ID=59716992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610099477.9A Pending CN107124098A (en) | 2016-02-24 | 2016-02-24 | Isolated from power device and TD-SCDMA terminals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107124098A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1330718A1 (en) * | 1985-10-10 | 1987-08-15 | Предприятие П/Я А-3030 | Piezotransformer inverter |
| CN1736024A (en) * | 2003-01-20 | 2006-02-15 | 沙夫纳Emv股份公司 | Filter network |
| CN201860107U (en) * | 2010-05-04 | 2011-06-08 | 惠州Tcl移动通信有限公司 | Power supply insulation device and Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) terminal |
| CN102510061A (en) * | 2011-11-07 | 2012-06-20 | 上海华艾软件有限公司 | Parallel harmonic wave protection device |
| CN203480395U (en) * | 2013-05-29 | 2014-03-12 | 高立 | Adjustable high-power water-cooling controller |
-
2016
- 2016-02-24 CN CN201610099477.9A patent/CN107124098A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1330718A1 (en) * | 1985-10-10 | 1987-08-15 | Предприятие П/Я А-3030 | Piezotransformer inverter |
| CN1736024A (en) * | 2003-01-20 | 2006-02-15 | 沙夫纳Emv股份公司 | Filter network |
| CN201860107U (en) * | 2010-05-04 | 2011-06-08 | 惠州Tcl移动通信有限公司 | Power supply insulation device and Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) terminal |
| CN102510061A (en) * | 2011-11-07 | 2012-06-20 | 上海华艾软件有限公司 | Parallel harmonic wave protection device |
| CN203480395U (en) * | 2013-05-29 | 2014-03-12 | 高立 | Adjustable high-power water-cooling controller |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170901 |