CN107707206A - Radio frequency front-end device, temprature control method and terminal - Google Patents
Radio frequency front-end device, temprature control method and terminal Download PDFInfo
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- CN107707206A CN107707206A CN201710901491.0A CN201710901491A CN107707206A CN 107707206 A CN107707206 A CN 107707206A CN 201710901491 A CN201710901491 A CN 201710901491A CN 107707206 A CN107707206 A CN 107707206A
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- 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
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- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
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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
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Abstract
The embodiment of the present application provides a kind of radio frequency front-end device, temprature control method and terminal.Radio frequency front-end device includes：Power amplifier, for carrying out power amplification to the radiofrequency signal of reception；Voltage stabilizing module, for storing the electric energy of power input, and stable power supply is provided for power amplifier；Detection module is used for the intensity of radiofrequency signal and the temperature signal of power amplifier for detecting power amplifier reception；Control module, for the intensity according to radiofrequency signal or the power output of temperature signal feedback control power amplifier, temperature signal is set to be maintained in preset temperature range to prevent Voltage stabilizing module from failing.Said apparatus can provide stable power supply for power amplifier, simultaneously, the RF signal strength or the temperature signal of the power amplifier of detection that control module can also receive according to the power amplifier of detection are to adjust the power output of power amplifier, to ensure that the temperature signal of power amplifier is maintained in preset temperature range, and then prevent Voltage stabilizing module from failing.
Description
Technical field
The application is related to wireless radio-frequency field, more particularly to radio frequency front-end device, temprature control method and terminal.
Background technology
Power amplifier (Power Amplifier, PA) is the core component of various transmitting sets, wherein, stable
Powering, it is positive to have the function that to the performance for maintaining power amplifier good.
In electronic equipment normal work, power amplifier takes out electricity to timing from battery, and immediate current can arrive 2A, simultaneously
Battery has internal resistance, and the high current that moment draws can directly have pressure drop on inside battery, cause the power supply system of power amplifier
Unite abnormal.Meanwhile the power of power amplifier is higher, caused heat is more, influences the stability of power amplifier power supply.
The content of the invention
The embodiment of the present application provides a kind of radio frequency front-end device, temprature control method and terminal, can be power amplifier
Stable power supply is provided, and the temperature of power amplifier can be made to be maintained in preset temperature range, improves power amplifier
Stability.
The application provides a kind of radio frequency front-end device, including：
Power amplifier, for carrying out power amplification to the radiofrequency signal of reception；
Voltage stabilizing module, it is connected with the power amplifier, for storing the electric energy of power input, and is the power amplification
Device provides stable power supply；
Detection module, it is connected with the power amplifier, the radiofrequency signal received for detecting the power amplifier
The temperature signal of intensity and the power amplifier；
Control module, it is connected respectively with the power amplifier, detection module, for the intensity according to the radiofrequency signal
Or the power output of power amplifier described in temperature signal feedback control, the temperature signal is maintained in preset temperature range
To prevent the Voltage stabilizing module from failing.
The application also provides a kind of temprature control method, and applied to radio frequency front-end device, the radio frequency front-end device includes
Voltage stabilizing module, power amplifier, detection module and control module, wherein, the power amplifier is used to believe the radio frequency of reception
Number carry out power amplification；
Methods described includes：
The electric energy of the Voltage stabilizing module storage power input, and stable power supply is provided for the power amplifier；
The detection module detects the intensity of radiofrequency signal that the power amplifier receives and the power amplifier
Temperature signal；
The output of control module power amplifier according to the intensity or temperature signal feedback control of the radiofrequency signal
Power, the temperature signal is set to be maintained in preset temperature range to prevent the Voltage stabilizing module from failing.
The application also provides a kind of terminal, including above-mentioned radio frequency front-end device and power supply, the Voltage stabilizing module with it is described
Power supply connects.
Above-mentioned radio frequency front-end device, temprature control method and terminal, stable power supply can be provided for power amplifier, together
When, RF signal strength or the temperature of the power amplifier of detection that control module can also receive according to the power amplifier of detection
Signal is to adjust the power output of power amplifier, to ensure that the temperature signal of power amplifier is maintained at preset temperature range
It is interior, and then prevent Voltage stabilizing module from failing.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of application, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the internal structure schematic diagram of radio frequency front-end device in one embodiment；
Fig. 2 is the internal structure schematic diagram of radio frequency front-end device in another embodiment；
Fig. 3 is the flow chart of temprature control method in one embodiment；
Fig. 4 is the stream for the power output for controlling power amplifier in one embodiment according to the intensity feedback of radiofrequency signal
Cheng Tu；
Fig. 5 is according to the flow chart of the power output of temperature signal feedback control power amplifier in one embodiment；
Fig. 6 is the block diagram of the part-structure of the mobile phone related to the terminal of the embodiment of the present application offer.
Embodiment
In order that the object, technical solution and advantage of the application are more clearly understood, it is right below in conjunction with drawings and Examples
The application is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the application, and
It is not used in restriction the application.
It is appreciated that term " first " used in this application, " second " etc. can be used to describe various elements herein,
But these elements should not be limited by these terms.These terms are only used for distinguishing first element and another element.Citing comes
Say, in the case where not departing from scope of the present application, the first detection unit can be referred to as the second detection unit, and similarly,
Second detection unit can be referred to as the first detection unit.First detection unit and the second detection unit both detection unit,
But it is not same detection unit.
As shown in figure 1, the application provides a kind of radio frequency front-end device, including Voltage stabilizing module 110, power amplifier 120, inspection
Survey module 130 and control module 140.Wherein, Voltage stabilizing module 110 is used for the electric energy for storing power input, and is power amplification
Device 120 provides stable power supply；Power amplifier 120 is connected with Voltage stabilizing module 110, for carrying out work(to the radiofrequency signal of reception
Rate is amplified；Detection module 130 is connected with power amplifier 120, for detecting the RF signal strength of the reception of power amplifier 120
And the temperature signal of power amplifier 120；Control module 140, it is connected respectively with power amplifier 120, detection module 130,
For the strength according to radiofrequency signal or the power output of temperature signal feedback control power amplifier 120, believe temperature
Number it is maintained in preset temperature range to prevent Voltage stabilizing module 110 from failing.
It should be noted that power amplifier 120 can be the chip of power amplifier 120.
In one embodiment, Voltage stabilizing module 110 includes courage electric capacity, and tantalum electric capacity is arranged on power supply and power amplifier 120
Between.That is, tantalum electric capacity is arranged on the power input of power amplifier 120, tantalum electric capacity can be as the electricity of one big capacitance
Container, the electric energy of power input can be stored, and stable power supply is provided for power amplifier 120.Meanwhile tantalum electric capacity can be with
Reduce influence of the disturbance of power supply to power amplifier 120.The material of tantalum electric capacity includes five two manganese of oxidation and tantalum powder, can avoid
The generation uttered long and high-pitched sounds, and protective action can be played to surge.
Due to the Ta of the solid tantalum of tantalum electric capacity2O5Dielectric oxide film has unilateal conduction performance, passes through when there is charge and discharge high current
Ta2O5Dielectric oxide film, heating can be caused to fail.That is, tantalum electric capacity is more sensitive to environment temperature.In radio frequency front-end device,
The distance between tantalum electric capacity and power amplifier 120 are relatively near, when power amplifier 120 works, can discharge corresponding heat, make work(
The temperature rise of rate amplifier 120, and then the environment temperature of power amplifier 120 is raised, then cause the temperature of tantalum electric capacity
Rise, tantalum electric capacity thermic is caused to fail.
Optionally, Voltage stabilizing module 110 can also be chip multilayer ceramic capacitor (Multi-layer Ceramic
Capacitors, MLCC).The maximum capacity of chip multilayer ceramic capacitor can reach 47uF, can store power input
Electric energy, and stable power supply is provided for power amplifier 120.Chip multilayer ceramic capacitor can remove those of short duration surges
Pulse signal, can also in absorbing circuit voltage fluctuation it is indefinite caused by unnecessary energy.
In order to avoid the generation of tantalum electric capacity thermic failure phenomenon, the application is also provided with detection module 130 and control module
140.Wherein, detection module 130 can be used for detect power amplifier 120 temperature signal and power amplifier 120 input
The intensity of radiofrequency signal.Control module 140 is connected with power amplifier 120, detection module 130 respectively, and control module 140 can
According to the intensity of the radiofrequency signal of reception or the power output of temperature signal feedback control power amplifier 120, and then make power
The real time temperature of amplifier 120 is maintained in preset temperature range, is led with avoiding the environment temperature of power amplifier 120 too high
Cause tantalum condenser failure.
Specifically, the maximum temperature of preset temperature range is 55 °.Certainly, the maximum temperature of its preset temperature range, minimum
Temperature can be set according to the actual requirements, not further herein to be limited.It understand that by substantial amounts of data statistics, tantalum
The environment temperature of electric capacity drops to 55 DEG C from 85 DEG C, and working life increases by 10 times.
Specifically, the strength for the radiofrequency signal that power amplifier 120 receives, its intensity can be understood as radiofrequency signal
Sensitivity.Meanwhile the intensity R of radiofrequency signal can be represented with power P, R=10logP.If transmission power P is 1mw, its is strong
Degree R is 0dBm.
As shown in Fig. 2 in one embodiment, radio frequency front-end device includes：Voltage stabilizing module 210, power amplifier 220,
Detection module 230 and control module 240.Voltage stabilizing module 210, power amplifier 220, detection module 230 and control module
240 is identical with the Voltage stabilizing module 110 in above-described embodiment, power amplifier 120, detection module 130 and control module 140,
It will not be repeated here.Radio frequency front-end device also includes memory module 250, is connected with control module 240, for prestoring power
The power output of amplifier 220 and the corresponding relation of temperature signal are to relation corresponding table.Corresponding relation in relation corresponding table can
To be provided by mobile phone producer, radio frequency front-end device is built in advance, and user can be made to carry out self-defined deposit according to use demand
Storage is in radio frequency front-end device.
Power amplifier 220 during work, if power amplifier 220 receive radio-frequency information intensity is too low or work(
Rate amplifier 220 temperature it is too high when, can be according to the power output of power amplifier 220 pass corresponding with temperature signal
System, can be by adjusting the power output of power amplifier 220, so as to the temperature letter of the regulation power amplifier 220 of adaptability
Number, temperature signal is maintained in preset temperature range to prevent Voltage stabilizing module from failing.
In one embodiment, when the RF signal strength that detection module 230 detects is less than first threshold, according to work(
The corresponding table that the power output of rate amplifier 220 and the corresponding relation of temperature signal are formed, increase the output of power amplifier 220
Power.Wherein, first threshold can be -90dBm (city signal minimum standard edge) or -94dBm (rural area signal minimum standards
Edge).
It should be noted that the size of first threshold can be set according to the geographical position that radio frequency front-end device is currently located
It is fixed, it can also be set according to the demands of individuals of user, it is not further herein to be limited.
When RF signal strength is less than first threshold, the radio communication of smoothness can not be carried out, control module 240 can basis
The RF signal strength of reception, the power output of power amplifier 220 is adjusted, to increase the power output of power amplifier 220,
Improve RF signal strength.
The power output of power amplifier 220 is higher, and the heat discharged is also more, the temperature of power amplifier 220
Also higher, during the power output of increase power amplifier 220, control module 240 can monitor detection module in real time
Temperature signal acquired in 230, to ensure that temperature signal is maintained in preset temperature range to prevent Voltage stabilizing module from failing.
In the temperature signal for ensuring to detect in real time on the premise of preset temperature range, control module 240 can also be use up can
The power output of the increase power amplifier 220 of energy, to obtain the radiofrequency signal of higher intensity, such as：- 70dBm to -85dBm is left
The right side, and then improve communication quality.
In one embodiment, when the temperature signal that detection module 230 detects is higher than Second Threshold, put according to power
The corresponding table that the power output of big device 220 and the corresponding relation of temperature signal are formed, reduce the output work of power amplifier 220
Rate.Wherein, Second Threshold can be 55 °.It should be noted that the size of Second Threshold can be according to radio frequency front-end device institute energy
Maximum temperature that the maximum temperature or tantalum electric capacity born can bear is set, not further herein to be limited.
When temperature signal is higher than Second Threshold, tantalum condenser failure can be made, or radio frequency front-end device can not be carried out normally
Work, control module 240 reduces the power output of power amplifier 220, protects temperature signal according to the temperature signal of reception
Hold in preset temperature range to prevent Voltage stabilizing module from failing.
In one embodiment, detection module 230 includes the first detection unit 231 and the second detection unit 233；Wherein,
First detection unit 231 is used for the intensity for detecting the radiofrequency signal of the reception of power amplifier 220.First detection unit 231 can be with
It is built in the chip of power amplifier 220, it is of course also possible to be an independent detection unit.
Second detection unit 233 is temperature sensor, for detecting the temperature signal of power amplifier 220.Specifically, it is warm
It can be digital temperature sensor, analog temperature sensor or thermistor temperature sensor etc. to spend sensor.In order to provide inspection
The precision of survey, generated heat region most near strong position it is possible to further which temperature sensor is arranged on into power amplifier 220.
In one embodiment, the specific embodiment of control module 240 can use microcontroller
(Microcontroller Unit, MCU), central processing unit (Central Processing Unit, CPU) or single-chip microcomputer etc..
Wherein, control module 240 can be built in the chip of power amplifier 220, or an independent module.
In one embodiment, radio frequency front-end device also includes：Heat conducting module, it is connected with power amplifier, for discharging
Heat caused by power amplifier.Import modul has good heat conductivility, can by heat caused by power amplifier and
When and effectively transmit to the outside of radio frequency front-end device, avoid heat from spreading, reduce the temperature of power amplifier, and then keep away
Exempt to impact tantalum electric capacity.
Limited it should be noted that the species of heat conducting module is not further herein, the good object of thermal conductivity
Think above-mentioned heat-transfer device, can also be heat pipe and heat conductive silica gel for example, can be heat conductive silica gel.
In one embodiment, radio frequency front-end device, in addition to：RF transceiver, for exporting radiofrequency signal；Duplexer
Or emission filter, duplexer are used for separting transomission and reception signal；Duplexer, the difference supported for switching terminal
The receiving-transmitting chain of frequency range, and go out to drink base station by aerial radiation and communicate etc..
The application also provides a kind of temprature control method, and applied to radio frequency front-end device, the radio frequency front-end device includes steady
Die block, power amplifier, detection module and control module.Wherein, power amplifier is used to carry out the radiofrequency signal of reception
Power amplification；Voltage stabilizing module is connected with power amplifier, is provided surely for storing the electric energy of power input, and for power amplifier
Fixed power supply.
It should be noted that power amplifier can be power amplifier chip.
As shown in figure 3, temprature control method, including：
Step 302：The electric energy of Voltage stabilizing module storage power input is controlled, and stable power supply is provided for power amplifier.
In one embodiment, Voltage stabilizing module includes courage electric capacity, and tantalum electric capacity is arranged between power supply and power amplifier.
That is, tantalum electric capacity is arranged on the power input of power amplifier, and tantalum electric capacity can be as the capacitor of one big capacitance, Neng Goucun
The electric energy of power input is stored up, and stable power supply is provided for power amplifier.Meanwhile tantalum electric capacity Kazakhstan can also reduce disturbing for power supply
The dynamic influence to power amplifier.The material of tantalum electric capacity includes five two manganese of oxidation and tantalum powder, can avoid the generation uttered long and high-pitched sounds, and right
Surge can play protective action.Control courage electric capacity
Due to the Ta of the solid tantalum of tantalum electric capacity2O5Dielectric oxide film has unilateal conduction performance, passes through when there is charge and discharge high current
Ta2O5Dielectric oxide film, heating can be caused to fail.That is, tantalum electric capacity is more sensitive to environment temperature.In radio frequency front-end device,
The distance between tantalum electric capacity and power amplifier are relatively near, when power amplifier works, can discharge corresponding heat, make power amplification
The temperature rise of device, and then the environment temperature of power amplifier is raised, then cause the temperature of tantalum electric capacity to raise, cause tantalum electric
Hold thermic failure.
Step 304：The intensity of radiofrequency signal and the temperature of power amplifier that detection module detection power amplifier receives
Signal.
In one embodiment, detection module includes the first detection unit and the second detection unit；Wherein, the first detection is single
Member is used for the intensity for detecting the radiofrequency signal of power amplifier reception.First detection unit can be built in power amplifier chip
In, it is of course also possible to be an independent detection unit.
The intensity for the radiofrequency signal that first detection unit detection power amplifier receives, its intensity can be understood as radio frequency letter
Number sensitivity.Meanwhile the intensity R of radiofrequency signal can be represented with power P, R=10logP.If transmission power P is 1mw, its
Intensity R is 0dBm.
Second detection unit is temperature sensor, for detecting the temperature signal of power amplifier.That is, can be passed by temperature
Sensor detects the temperature signal of power amplifier.
Specifically, temperature sensor can be that digital temperature sensor, analog temperature sensor or thermistor temp pass
Sensor etc..In order to provide the precision of detection, it is possible to further which temperature sensor is arranged on into the most strong position of power amplifier heating
Region near putting.
Step 306：Control module makes temperature according to intensity or the power output of temperature signal feedback control power amplifier
Signal is maintained in preset temperature range to prevent Voltage stabilizing module from failing.
Control module receives the RF signal strength and power amplifier that the power amplifier of detection module detection receives
Temperature signal, and according to the RF signal strength or temperature signal detected in real time and the comparison of respective threshold value, and then control accordingly
The power output of power amplifier processed, makes temperature signal be maintained in preset temperature range, and then prevents the temperature of Voltage stabilizing module
It is too high and fail.
Said temperature control method, stable power supply can be provided for power amplifier, simultaneously, moreover it is possible to according to the work(of detection
The RF signal strength or the temperature signal of the power amplifier of detection that rate amplifier receives are to adjust the output of power amplifier
Power, to ensure that the temperature signal of power amplifier is maintained in preset temperature range, and then prevent Voltage stabilizing module from failing.
In one embodiment, temprature control method also includes：Prestore the power output and temperature of power amplifier
The step of corresponding relation of signal to relation corresponding table.
By the corresponding relation of the power output of the power amplifier obtained in advance and temperature signal a to corresponding table.Wherein,
The corresponding relation of relation corresponding table can be provided by mobile phone producer, be built in radio frequency front-end device in advance, can make user's root
Radio frequency front-end device is stored according to use demand progress is self-defined.
In one embodiment, the power output of power amplifier is controlled according to the intensity feedback of radiofrequency signal, makes temperature
Signal is maintained in preset temperature range to prevent Voltage stabilizing module from failing, including：
Step 402：Judge the intensity of the radiofrequency signal of detection whether less than the first threshold prestored.
The intensity for the radiofrequency signal that control module receiving power amplifier receives, and the first threshold with prestoring is carried out
Compare.Wherein, first threshold can be -90dBm (city signal minimum standard edge) or -94dBm (rural area signal minimum standards
Edge).First threshold can be stored in control module, can also be stored in memory module.
It should be noted that the size of first threshold can be set according to the geographical position that radio frequency front-end device is currently located
It is fixed, it can also be set according to the demands of individuals of user, it is not further herein to be limited.
If the intensity of the radiofrequency signal of detection is less than the first threshold prestored, step 404 is performed：According to relation
The power output of corresponding table control increase power amplifier, makes temperature signal be maintained in preset temperature range to prevent voltage stabilizing mould
Block fails.
When RF signal strength is less than first threshold, the radio communication of smoothness can not be carried out, control module meeting basis connects
The RF signal strength of receipts, the power output of power amplifier is controlled according to relation corresponding table, to increase the defeated of power amplifier
Go out power, while the temperature signal of power amplifier is maintained in preset temperature range, and then prevent the temperature of Voltage stabilizing module
It is too high and fail.
Step 406：The power output of power amplifier is adjusted again, makes the intensity of the radiofrequency signal of power amplifier output
Meet communication condition.
When the temperature signal of power amplifier is kept within a preset range, the output work of power amplifier is adjusted again
Rate, increase the power output of power amplifier, to obtain the output radiofrequency signal of higher intensity (being more than first threshold), such as：-
70dBm to -85dBm or so, to meet communication condition, and then improve communication quality.In one embodiment, according to temperature signal
The power output of feedback control power amplifier, temperature signal is set to be maintained in preset temperature range to prevent Voltage stabilizing module from losing
Effect, including：
Step 502：Judge the temperature signal of detection whether higher than the Second Threshold prestored.
The temperature signal of control module receiving power amplifier, and by the temperature signal of reception and the second threshold for prestoring
Value is compared.Wherein, Second Threshold can be 55 °.It should be noted that the size of Second Threshold can be according to radio-frequency front-end
Maximum temperature that the maximum temperature or tantalum electric capacity that device can bear can bear is set, not further herein to be limited.
Second Threshold can be stored in control module, can also be stored in memory module.
If the temperature signal of detection is higher than the Second Threshold prestored, step 504 is performed：According to relation corresponding table control
System reduces the power output of power amplifier, temperature signal is maintained in preset temperature range to prevent Voltage stabilizing module from failing.
When temperature signal is higher than Second Threshold, tantalum condenser failure can be made, or radio frequency front-end device can not be carried out normally
Work.When temperature signal is higher than Second Threshold, control module controls the output work of power amplifier according to relation corresponding table
Rate, to reduce the power output of power amplifier, the temperature signal of power amplifier is set to be maintained in preset temperature range, and then
Prevent the temperature of Voltage stabilizing module too high and fail.
Step 506：The power output of power amplifier is adjusted again, makes the intensity of the radiofrequency signal of power amplifier output
Meet communication condition.
When the temperature signal of power amplifier is kept within a preset range, the output work of power amplifier is adjusted again
Rate, increase the power output of power amplifier, to obtain the output radiofrequency signal of higher intensity (being more than first threshold), such as：-
70dBm to -85dBm or so, to meet communication condition, and then improve communication quality.
The application also provides radio frequency front-end device and power supply in a kind of terminal, including any of the above-described embodiment, wherein surely
Die block is connected with power supply.As shown in fig. 6, for convenience of description, the part related to the embodiment of the present application is illustrate only, specifically
What ins and outs did not disclosed, it refer to the embodiment of the present application method part.The terminal can be to include mobile phone, tablet personal computer, PDA
(Personal Digital Assistant, personal digital assistant), POS (Point of Sales, point-of-sale terminal), vehicle mounted electric
Any terminal device such as brain, Wearable, so that terminal is mobile phone as an example：
Fig. 6 is the block diagram of the part-structure of the mobile phone related to the terminal of the embodiment of the present application offer.With reference to figure 6, mobile phone
Including：Radio frequency front-end device 610, memory 620, input block 630, display unit 640, sensor 650, voicefrequency circuit 660,
The parts such as Wireless Fidelity (wireless fidelity, WiFi) module 670, processor 680 and power supply 690.This area skill
Art personnel are appreciated that the handset structure shown in Fig. 6 does not form the restriction to mobile phone, can include more more or less than illustrating
Part, either combine some parts or different parts arrangement.
Wherein, radio frequency front-end device 610 can be used for receive and send messages or communication process in, the reception and transmission of signal, can will
After the downlink information of base station receives, handled to processor 680；Up data can also be sent to base station.Generally, before radio frequency
End device includes but is not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (Low Noise
Amplifier, LNA), duplexer etc..In addition, radio frequency front-end device 610 can also by radio communication and network and other set
Standby communication.Above-mentioned radio communication can use any communication standard or agreement, including but not limited to global system for mobile communications
(Global System of Mobile communication, GSM), general packet radio service (General Packet
Radio Service, GPRS), CDMA (Code Division Multiple Access, CDMA), WCDMA
(Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution,
LTE)), Email, Short Message Service (Short Messaging Service, SMS) etc..
Memory 620 can be used for storage software program and module, and processor 680 is stored in memory 620 by operation
Software program and module, so as to perform the various function application of mobile phone and data processing.Memory 620 can mainly include
Program storage area and data storage area, wherein, program storage area can storage program area, the application journey needed at least one function
Sequence (such as the application program of sound-playing function, application program of image player function etc.) etc.；Data storage area can store root
Created data (such as voice data, address list etc.) etc. are used according to mobile phone.In addition, memory 620 can be included at a high speed
Random access memory, can also include nonvolatile memory, a for example, at least disk memory, flush memory device or
Other volatile solid-state parts.
Input block 630 can be used for the numeral or character information for receiving input, and produces and set with the user of mobile phone 600
And the key signals input that function control is relevant.Specifically, input block 630 may include contact panel 631 and other inputs
Equipment 632.Contact panel 631, alternatively referred to as touch-screen, collect touch operation (such as user of the user on or near it
Use the operation of any suitable object such as finger, stylus or annex on contact panel 631 or near contact panel 631),
And corresponding attachment means are driven according to formula set in advance.In one embodiment, contact panel 631 may include to touch inspection
Survey two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation
The signal brought, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and will
It is converted into contact coordinate, then gives processor 680, and the order sent of reception processing device 680 and can be performed.In addition,
The polytypes such as resistance-type, condenser type, infrared ray and surface acoustic wave can be used to realize contact panel 631.Except touch surface
Plate 631, input block 630 can also include other input equipments 632.Specifically, other input equipments 632 can be included but not
The one or more being limited in physical keyboard, function key (such as volume control button, switch key etc.) etc..
Display unit 640 can be used for display by user input information or be supplied to user information and mobile phone it is various
Menu.Display unit 640 may include display panel 641.In one embodiment, liquid crystal display (Liquid can be used
Crystal Display, LCD), the form such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED)
To configure display panel 641.In one embodiment, contact panel 631 can cover display panel 641, when contact panel 631 is examined
After measuring the touch operation on or near it, processor 680 is sent to determine the type of touch event, is followed by subsequent processing device
680 provide corresponding visual output according to the type of touch event on display panel 641.Although in figure 6, contact panel
631 and display panel 641 are the parts independent as two to realize the input of mobile phone and input function, but in some implementations
In example, contact panel 631 and display panel 641 can be integrated and realize input and the output function of mobile phone.
Mobile phone 600 may also include at least one sensor 650, such as optical sensor, motion sensor and other sensings
Device.Specifically, optical sensor may include ambient light sensor and proximity transducer, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 641, and proximity transducer can close display panel when mobile phone is moved in one's ear
641 and/or backlight.Motion sensor may include acceleration transducer, can detect by acceleration transducer and adds in all directions
The size of speed, size and the direction of gravity are can detect that when static, application (such as the horizontal/vertical screen available for identification mobile phone posture
Switching), Vibration identification correlation function (such as pedometer, tap) etc.；In addition, mobile phone can also configure gyroscope, barometer, humidity
Other sensors such as meter, thermometer, infrared ray sensor etc..
Voicefrequency circuit 660, loudspeaker 661 and microphone 662 can provide the COBBAIF between user and mobile phone.Audio-frequency electric
Electric signal after the voice data received conversion can be transferred to loudspeaker 661, sound is converted to by loudspeaker 661 by road 660
Signal output；On the other hand, the voice signal of collection is converted to electric signal by microphone 662, is turned after being received by voicefrequency circuit 660
Voice data is changed to, then after voice data output processor 680 is handled, can be sent to through radio frequency front-end device 610 another
Mobile phone, or voice data is exported to memory 620 so as to subsequent treatment.
WiFi belongs to short range wireless transmission technology, and mobile phone can help user's transceiver electronicses postal by WiFi module 670
Part, browse webpage and access streaming video etc., it has provided the user wireless broadband internet and accessed.Although Fig. 6 is shown
WiFi module 670, but it is understood that, it is simultaneously not belonging to must be configured into for mobile phone 600, can omit as needed.
Processor 680 is the control centre of mobile phone, using various interfaces and the various pieces of connection whole mobile phone, is led to
Cross operation or perform the software program and/or module being stored in memory 620, and call and be stored in memory 620
Data, the various functions and processing data of mobile phone are performed, so as to carry out integral monitoring to mobile phone.In one embodiment, handle
Device 680 may include one or more processing units.In one embodiment, processor 680 can integrate application processor and modulation
Demodulation processor, wherein, application processor mainly handles operating system, user interface and application program etc.；Modulation /demodulation is handled
Device mainly handles radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 680.
Mobile phone 600 also includes the power supply 690 (such as battery) to all parts power supply, it is preferred that power supply can pass through electricity
Management system and processor 680 are logically contiguous, so as to realize management charging, electric discharge and power consumption by power-supply management system
The functions such as management.
In one embodiment, mobile phone 600 can also include camera, bluetooth module etc..
Any reference to memory, storage, database or other media used in this application may include non-volatile
And/or volatile memory.Suitable nonvolatile memory may include read-only storage (ROM), programming ROM (PROM),
Electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include arbitrary access
Memory (RAM), it is used as external cache.By way of illustration and not limitation, RAM is available in many forms, such as
It is static RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhanced
SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM).
Above example only expresses the several embodiments of the application, and its description is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the application the scope of the claims.It should be pointed out that for the person of ordinary skill of the art,
On the premise of the application design is not departed from, various modifications and improvements can be made, these belong to the protection model of the application
Enclose.Therefore, the protection domain of the application patent should be determined by the appended claims.
Claims (10)
- A kind of 1. radio frequency front-end device, it is characterised in that including：Power amplifier, for carrying out power amplification to the radiofrequency signal of reception；Voltage stabilizing module, it is connected with the power amplifier, is carried for storing the electric energy of power input, and for the power amplifier For stable power supply；Detection module, it is connected with the power amplifier, the intensity of the radiofrequency signal received for detecting the power amplifier And the temperature signal of the power amplifier；Control module, it is connected respectively with the power amplifier, detection module, for the intensity or temperature according to the radiofrequency signal Spend the power output of power amplifier described in signal feedback control, the temperature signal is maintained in preset temperature range to prevent The only Voltage stabilizing module failure.
- 2. radio frequency front-end device according to claim 1, it is characterised in that the Voltage stabilizing module includes tantalum electric capacity, described Tantalum electric capacity is arranged between the power supply and power amplifier.
- 3. radio frequency front-end device according to claim 1, it is characterised in that also include：Memory module, it is connected with the control module, the power output for prestoring the power amplifier is believed with temperature Number corresponding relation to relation corresponding table.
- 4. radio frequency front-end device according to claim 1, it is characterised in that the detection module includes the first detection unit With the second detection unit；First detection unit is used for the intensity for detecting the radiofrequency signal that the power amplifier receives；Second detection unit is temperature sensor, for detecting the temperature signal of the power amplifier.
- 5. radio frequency front-end device according to claim 1, it is characterised in that also include：Heat conducting module, it is connected with the power amplifier, for discharging heat caused by the power amplifier.
- 6. a kind of temprature control method, applied to radio frequency front-end device, it is characterised in that the radio frequency front-end device includes voltage stabilizing Module, power amplifier, detection module and control module, wherein, the power amplifier is used to enter the radiofrequency signal of reception Row power amplification；Methods described includes：The electric energy of the Voltage stabilizing module storage power input, and stable power supply is provided for the power amplifier；The detection module detects the intensity of radiofrequency signal and the temperature of the power amplifier that the power amplifier receives Signal；The power output of control module power amplifier according to the intensity or temperature signal feedback control of the radiofrequency signal, The temperature signal is set to be maintained in preset temperature range to prevent the Voltage stabilizing module from failing.
- 7. according to the method for claim 6, it is characterised in that also include：The power output of the power amplifier and the corresponding relation of temperature signal are prestored to relation corresponding table.
- 8. according to the method for claim 7, it is characterised in that the work(is controlled according to the intensity feedback of the radiofrequency signal The power output of rate amplifier, the temperature signal is set to be maintained to prevent the Voltage stabilizing module from failing in preset temperature range, Including：Judge the intensity of the radiofrequency signal of detection whether less than the first threshold prestored；If so, increasing the power output of the power amplifier according to relation corresponding table control, protect the temperature signal Hold in preset temperature range to prevent the Voltage stabilizing module from failing；The power output of the power amplifier is adjusted again, meets the intensity of the radiofrequency signal of the power amplifier output Default communication condition.
- 9. according to the method for claim 7, it is characterised in that according to power amplification described in the temperature signal feedback control The power output of device, the temperature signal is set to be maintained in preset temperature range to prevent the Voltage stabilizing module from failing, including：Judge the temperature signal of detection whether higher than the Second Threshold prestored；If so, reducing the power output of the power amplifier according to relation corresponding table control, protect the temperature signal Hold in preset temperature range to prevent the Voltage stabilizing module from failing；The power output of the power amplifier is adjusted again, meets the intensity of the radiofrequency signal of the power amplifier output Communication condition.
- 10. a kind of terminal, it is characterised in that described including the radio frequency front-end device and power supply described in claim any one of 1-5 Voltage stabilizing module is connected with the power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710901491.0A CN107707206A (en) | 2017-09-28 | 2017-09-28 | Radio frequency front-end device, temprature control method and terminal |
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| CN201710901491.0A CN107707206A (en) | 2017-09-28 | 2017-09-28 | Radio frequency front-end device, temprature control method and terminal |
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| CN113835053A (en) * | 2020-06-23 | 2021-12-24 | 通用电气精准医疗有限责任公司 | Power control device of radio frequency power amplifier and radio frequency transmission system of MRI system |
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Application publication date: 20180216 |