CN108183717A - A kind of receiver and control method of dynamic control power consumption - Google Patents
A kind of receiver and control method of dynamic control power consumption Download PDFInfo
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- CN108183717A CN108183717A CN201711492015.4A CN201711492015A CN108183717A CN 108183717 A CN108183717 A CN 108183717A CN 201711492015 A CN201711492015 A CN 201711492015A CN 108183717 A CN108183717 A CN 108183717A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
-
- 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
- H04B1/109—Means associated with receiver for limiting or suppressing noise or interference by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
-
- 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
- H04B1/12—Neutralising, balancing, or compensation arrangements
- H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
-
- 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
- H04B1/16—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
- H04B2001/1072—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal by tuning the receiver frequency
Abstract
The invention discloses a kind of receivers and control method of dynamic control power consumption, the receiver includes amplification frequency reducing module, demodulator, power detection module and variable bias current module, input terminal of the output terminal of the amplification frequency reducing module respectively with the input terminal of demodulator and power detection module is connect, the output terminal of the power detection module is connect with the input terminal of variable bias current module, and the output terminal of the variable bias current module is connected to the offset side of amplification frequency reducing module；The power detection module sends control signal according to power information for acquiring the power information of the output terminal of amplification frequency reducing module to variable bias current module；The variable bias current module is used for according to the bias current of control signal control amplification frequency reducing module received.The present invention controls the bias current of amplification frequency reducing module by variable bias current module, so as to reduce the average power consumption of radio-frequency transmitter, can be widely applied to technical field of semiconductors.
Description
Technical field
The present invention relates to technical field of semiconductors more particularly to a kind of receivers and control method of dynamic control power consumption.
Background technology
Radio-frequency transmitter is the important component of mobile phone terminal, satellite telephone terminal, Internet of Things etc..Radio-frequency transmitter leads to
It crosses antenna and receives aerial brewed radiofrequency signal, then it is amplified and is down-converted to a suitable intermediate frequency (IF：
Intermediate Frequency) or convert directly to base band (BB：Baseband) frequency.Signal after down coversion can be with
It is demodulated in analog domain, useful letter included in radiofrequency signal can also be obtained by being demodulated after ADC in numeric field
Number, complete the wireless transmission of useful information.Analog radio frequency receiver is commonly referred to as in the radio-frequency transmitter of analog domain demodulation；And
The receiver that numeric field is demodulated is known as digital radio frequency receiver.Analog radio frequency receiver mainly by low-noise amplifier LNA,
Frequency mixer Mixer, wave filter Filter and analog demodulator composition.And digital radio frequency receiver is mainly by low-noise amplifier
LNA, frequency mixer Mixer, wave filter Filter, analog-digital converter ADC and digital demodulator composition.
In practical communication system, in order to ensure the correct demodulation to useful signal, it is desirable that the output of radio-frequency transmitter
Signal to Noise Ratio (SNR)oIt should be at least more than the demodulation threshold SNR of systemTH, i.e. SNRo≥SNRTH.However, since radio-frequency transmitter is deposited in itself
In noise, so its output signal-to-noise ratio SNRoIt is necessarily smaller than input signal-to-noise ratio SNRi, their difference is known as the noise system of receiver
Number NF=SNRi(dB)-SNRo(dB).Therefore, NF≤SNR can be obtainedi-SNRTH.In addition, due to input signal-to-noise ratio SNRiIt can be with
It is expressed as：SNRi(dB)=Pin(dB)-Nin(dB)=Pin(dB)-kTB, wherein, Pin(dB) it is the power of radiofrequency signal, k is glass
The graceful constant (=1.380662 × 10 of Wurz-23), T is absolute temperature, and the bandwidth that B is signal, B are determined and defeated by system protocol
The power for entering signal is unrelated.So under specific environment temperature, input signal-to-noise ratio SNRiWith input signal power PinReduction
And it reduces.
In view of the foregoing it is apparent that work as PinMore hour, it is desirable that radio-frequency transmitter has better noise coefficient, to ensure
Enough output signal-to-noise ratios；And with PinIncrease, the noise requirements of receiver can suitably be loosened.In circuit design,
Low noise is exchanged for often through power consumption is increased.So general PinIt is smaller, it is desirable that the power consumption of receiver is bigger.However, it passes
The radio-frequency transmitter of system often according to the input power of system minimum come the noise of design system, and no matter input power it is big
It is small, using minimum power input when big power consumption working condition, and without the dynamic according to the size of input signal power
Adjustment radio-frequency transmitter power consumption function.So as to lead to the increase of system average power consumption, cause the waste of power consumption and battery longevity
The shortening of life.
Invention content
In order to solve the above-mentioned technical problem, it is controlled the object of the present invention is to provide a kind of can be changed according to input signal power
The radio-frequency transmitter of power consumption processed.
It is a further object of the present invention to provide a kind of power consumptions for changing control radio-frequency transmitter according to input signal power
Method.
The technical solution adopted in the present invention is：
A kind of receiver of dynamic control power consumption, including amplification frequency reducing module, demodulator, power detection module and it is variable partially
Put current module, the output terminal of the amplification frequency reducing module respectively with the input terminal of demodulator and the input terminal of power detection module
Connection, the output terminal of the power detection module are connect with the input terminal of variable bias current module, the variable bias current
The output terminal of module is connected to the offset side of amplification frequency reducing module；
The power detection module amplifies the power information of the output terminal of frequency reducing module for acquisition, and according to power information
Control signal is sent to variable bias current module；
The variable bias current module is used for according to the biased electrical of control signal control amplification frequency reducing module received
Stream.
Further, using Simulation scale-up frequency reducing module, the Simulation scale-up frequency reducing module includes the amplification frequency reducing module
Low-noise amplifier, frequency mixer and wave filter, the input that the output terminal of the low-noise amplifier passes through frequency mixer and wave filter
End connection, the output terminal of the output terminal of the wave filter as Simulation scale-up frequency reducing module.
Further, the amplification frequency reducing module is included using number amplification frequency reducing module, the number amplification frequency reducing module
Low-noise amplifier, frequency mixer, wave filter and analog-to-digital conversion device, the output terminal of the low-noise amplifier pass sequentially through frequency mixer
It is connect with wave filter with the input terminal of analog-to-digital conversion device, the output terminal of the analog-to-digital conversion device is as number amplification frequency reducing module
Output terminal.
Further, the variable bias current module includes reference current source, the first p type field effect transistor, the second p-type
Field-effect transistor and multiple bias current units；
The source electrode connection power supply of first p type field effect transistor, the drain and gate of the first p type field effect transistor
It is connect with the input terminal of reference current source, the output terminal ground connection of the reference current source, second p type field effect transistor
Source electrode connect with power supply, the grid of the second p type field effect transistor is connect with the grid of the first p type field effect transistor,
Output terminal of the drain electrode of two p type field effect transistors as variable bias current module, the input of each bias current unit
Grid of the port with the first p type field effect transistor is connect, the output port of each bias current unit with the second p-type
The drain electrode connection of field-effect transistor, the signal input port of each bias current unit are defeated as variable bias current module
Inbound port.
Further, each bias current unit includes reverser, third p type field effect transistor, the 4th p-type field-effect
Transistor and electronic switch；
The source electrode of the third p type field effect transistor is connect with power supply, the grid conduct of third p type field effect transistor
Signal input port, the grid and electronic cutting with the 4th p type field effect transistor respectively that drain of third p type field effect transistor
The first end connection of pass, the input port of the second end of the electronic switch as bias current unit, the 4th p-type field is imitated
The source electrode of transistor is answered to be connect with power supply, the output to drain as bias current unit of the 4th p type field effect transistor
Port, the input terminal of the reverser are connect with the grid of third p type field effect transistor, the output terminal and electronic cutting of reverser
The third end connection of pass.
Further, the electronic switch is field-effect transistor.
Further, the power detection module includes envelope detector, range detector or energy detector.
The method of the dynamic control power consumption of above-mentioned radio-frequency transmitter, includes the following steps：
The power information of the output terminal of power detection module acquisition amplification frequency reducing module, with reference to preset power interval and work(
Rate acquisition of information controls signal, and sends control signals to variable bias current module；
Variable bias current module is according to the corresponding bias current unit of the control signal behavior received to amplifying frequency reducing
Module is biased.
The beneficial effects of the invention are as follows：A kind of receiver of dynamic control power consumption, including amplification frequency reducing module, demodulator,
Power detection module and variable bias current module, it is described amplification frequency reducing module output terminal respectively with the input terminal of demodulator and
The input terminal connection of power detection module, the output terminal of the power detection module connect with the input terminal of variable bias current module
It connects, the output terminal of the variable bias current module is connected to the offset side of amplification frequency reducing module；The power detection module is used
In the power information of the output terminal of acquisition amplification frequency reducing module, and sent and controlled to variable bias current module according to power information
Signal；The variable bias current module is used for according to the bias current of control signal control amplification frequency reducing module received.
The bias current of amplification frequency reducing module is controlled by variable bias current module, when input signal power increases, reduces amplification
The bias current of frequency reducing module so as to reduce the average power consumption of radio-frequency transmitter, avoids the waste of power consumption, extends the longevity of battery
Life.
The present invention another advantageous effect be：Power detection module is according to collected power information, to variable bias electricity
Flow module sends control signal, and variable bias current module amplifies the bias current of frequency reducing module according to control signal control, when
When input signal power increases, the bias current of amplification frequency reducing module is reduced, so as to reduce the average power consumption of radio-frequency transmitter, is kept away
Exempt from the waste of power consumption, extend the service life of battery.
Description of the drawings
Fig. 1 is a kind of structure diagram of the receiver of dynamic control power consumption of the present invention；
Fig. 2 is the structure diagram using the receiver of the dynamic control power consumption of Simulation scale-up frequency reducing module；
Fig. 3 is the structure diagram using the receiver of the dynamic control power consumption of number amplification frequency reducing module；
Fig. 4 is the electronic circuitry of variable bias current module；
Fig. 5 is the schematic diagram of radio frequency reception power consumption in the present invention.
Specific embodiment
As shown in Figure 1, a kind of receiver of dynamic control power consumption, including amplification frequency reducing module, demodulator, power detection mould
Block and variable bias current module, it is described amplification frequency reducing module output terminal respectively with the input terminal of demodulator and power detection mould
The input terminal connection of block, the output terminal of the power detection module connect with the input terminal of variable bias current module, it is described can
The output terminal for becoming bias current module is connected to the offset side of amplification frequency reducing module；
The power detection module amplifies the power information of the output terminal of frequency reducing module for acquisition, and according to power information
Control signal is sent to variable bias current module；
The variable bias current module is used for according to the biased electrical of control signal control amplification frequency reducing module received
Stream.
Preferred embodiment is further used as, the amplification frequency reducing module is using Simulation scale-up frequency reducing module, the mould
Intend amplification frequency reducing module and include low-noise amplifier, frequency mixer and wave filter, the output terminal of the low-noise amplifier, which passes through, to be mixed
The input terminal of frequency device and wave filter connects, the output terminal of the output terminal of the wave filter as Simulation scale-up frequency reducing module.
Preferred embodiment is further used as, the amplification frequency reducing module is using number amplification frequency reducing module, the number
Word amplification frequency reducing module includes low-noise amplifier, frequency mixer, wave filter and analog-to-digital conversion device, the low-noise amplifier it is defeated
Outlet passes sequentially through frequency mixer and wave filter and is connect with the input terminal of analog-to-digital conversion device, the output terminal conduct of the analog-to-digital conversion device
The output terminal of number amplification frequency reducing module.
Preferred embodiment is further used as, the variable bias current module includes reference current source Iref, the first P
Type field-effect transistor Q1, the second p type field effect transistor Q2 and multiple bias current units；
The source electrode connection power vd D of the first p type field effect transistor Q1, the leakage of the first p type field effect transistor Q1
The input terminal of pole and grid with reference current source Iref is connect, the output terminal of reference current source Iref ground connection, and described the
The source electrode of two p type field effect transistor Q2 is connect with power vd D, the grid of the second p type field effect transistor Q2 and the first p-type field
The grid connection of effect transistor Q1, the output to drain as variable bias current module of the second p type field effect transistor Q2
End, the grid of the input terminal of each bias current unit with the first p type field effect transistor Q1 are connect, each biased electrical
It flows drain electrode of the output port of unit with the second p type field effect transistor Q2 to connect, the signal of each bias current unit
Input port is as variable bias current module input mouth.
Preferred embodiment is further used as, each bias current unit includes reverser, third p-type field-effect crystalline substance
Body pipe Q3, the 4th p type field effect transistor M0 and electronic switch；
The source electrode of the third p type field effect transistor Q3 is connect with power vd D, third p type field effect transistor Q3's
Grid is as signal input port, and the drain electrode of third p type field effect transistor Q3 is respectively with the 4th p type field effect transistor M0's
Grid is connected with the first end of electronic switch, the input port of the second end of the electronic switch as bias current unit, institute
The source electrode for stating the 4th p type field effect transistor M0 is connect with power vd D, and the drain electrode of the 4th p type field effect transistor M0 is made
For bias current unit output port, the input terminal of the reverser is connect with the grid of third p type field effect transistor Q3, instead
The third end connection of output terminal and electronic switch to device.
Preferred embodiment is further used as, the electronic switch is field-effect transistor.
Be further used as preferred embodiment, the power detection module include envelope detector, range detector or
Energy detector.
The operation principle of above-mentioned radio-frequency transmitter is：Radio-frequency transmitter includes module radio-frequency transmitter and digital radio frequency reception
Machine, as shown in Fig. 2, the amplification frequency reducing module of analog radio frequency receiver be Simulation scale-up frequency reducing module, including low-noise amplifier,
Frequency mixer and wave filter, power detection module acquire the power information of filter output.As shown in figure 3, digital RF receives
The amplification frequency reducing module of machine is number amplification frequency reducing module, including low-noise amplifier, frequency mixer, wave filter and analog-to-digital conversion
Device, power detection module acquire the power information of analog-to-digital conversion device.After power detection module collects power information, it can combine
Preset power interval and power information obtain control information, and send that information to variable bias current module, in this reality
It applies in example, control signal is logic control signal, and corresponding n+1 of digital control word D is exported to variable bias current module<
n:0>.With reference to Fig. 4, in the present embodiment, variable bias current module includes n+1 multiple bias current units, with biased electrical
For flowing unit 1, each bias current unit includes phase inverter, upper trombone slide (i.e. third p type field effect transistor Q3), switching tube
(i.e. the 5th p type field effect transistor Q4) and tube of current (i.e. the 4th p type field effect transistor M0), wherein, switching tube is used to control
The working condition of tube of current processed, when switching tube is opened, tube of current normal work, tube of current output current.When switching tube is closed
When, tube of current cut-off, tube of current not output current.After variable bias current module receives digital control word, work as D<x>For " 1 "
During signal, i.e. bias current unit x+1 receives " 1 " signal, and the switching tube in bias current unit is opened, the grid of tube of current Mx
The bias voltage of pole turn-on current mirror, tube of current Mx have electric current output；Conversely, work as D<x>During for " 0 ", switching tube is closed, electric current
The grid of pipe Mx meets power vd D by upper trombone slide, and tube of current Mx does not have electric current output.Wherein, in each bias current unit
The electric current that tube of current generates is different, by selecting different bias current cell operations, so as to provide different biased electricals
Stream, can thus pass through D<n:0>Value control the size of bias current Ibias.Wherein, M1 is bias current unit 2
In tube of current, Mn be bias current list n+1 in tube of current, above-mentioned this current control method be the present invention an example
Son can also have other current control methods.
By above device, the bias current of frequency reducing module can be amplified with dynamic control, as shown in figure 5, working as input signal
When power increases, the bias current of amplification frequency reducing module reduces with the increase of input signal power, is connect so as to reduce radio frequency
The power consumption of receipts machine, and traditional transmitter is then big power consumption state when using minimum input signal always.Pass through dynamic control
Bias current size reduces average power consumption, avoids the waste of power consumption, extend the service life of battery.In Figure 5, although only 4 shelves
The power consumption of position, but practical application middle-grade digit can be much larger than 4.
The method of dynamic control power consumption based on above-mentioned radio-frequency transmitter, includes the following steps：
The power information of the output terminal of power detection module acquisition amplification frequency reducing module, with reference to preset power interval and work(
Rate acquisition of information controls signal, and sends control signals to variable bias current module；
Variable bias current module is according to the corresponding bias current unit of the control signal behavior received to amplifying frequency reducing
Module is biased.
Power interval is first pre-set in the method, when input signal power is in different power intervals, is then obtained
Different control signals is taken, so as to generate different control electric currents, the power wastage of radio-frequency transmitter thus is avoided that, extends electricity
The service life in pond.
It is that the preferable of the present invention is implemented to be illustrated, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations under the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (8)
1. a kind of receiver of dynamic control power consumption, which is characterized in that including amplification frequency reducing module, demodulator, power detection mould
Block and variable bias current module, it is described amplification frequency reducing module output terminal respectively with the input terminal of demodulator and power detection mould
The input terminal connection of block, the output terminal of the power detection module connect with the input terminal of variable bias current module, it is described can
The output terminal for becoming bias current module is connected to the offset side of amplification frequency reducing module；
The power detection module is for acquiring the power information of the output terminal of amplification frequency reducing module, and according to power information to can
Become bias current module and send control signal；
The variable bias current module is used for according to the bias current of control signal control amplification frequency reducing module received.
A kind of 2. receiver of dynamic control power consumption according to claim 1, which is characterized in that the amplification frequency reducing module
Using Simulation scale-up frequency reducing module, the Simulation scale-up frequency reducing module includes low-noise amplifier, frequency mixer and wave filter, described
The output terminal of low-noise amplifier is connected by the input terminal of frequency mixer and wave filter, and the output terminal of the wave filter is as simulation
Amplify the output terminal of frequency reducing module.
A kind of 3. receiver of dynamic control power consumption according to claim 1, which is characterized in that the amplification frequency reducing module
Frequency reducing module is amplified using number, the number amplification frequency reducing module includes low-noise amplifier, frequency mixer, wave filter and modulus
Converter, the output terminal of the low-noise amplifier passes sequentially through frequency mixer and wave filter and the input terminal of analog-to-digital conversion device connects
It connects, the output terminal of the analog-to-digital conversion device amplifies the output terminal of frequency reducing module as number.
A kind of 4. receiver of dynamic control power consumption according to claim 1, which is characterized in that the variable bias current
Module includes reference current source, the first p type field effect transistor, the second p type field effect transistor and multiple bias current units；
The source electrode connection power supply of first p type field effect transistor, the drain and gate of the first p type field effect transistor with
The input terminal connection of reference current source, the output terminal ground connection of the reference current source, the source of second p type field effect transistor
Pole is connect with power supply, and the grid of the second p type field effect transistor is connect with the grid of the first p type field effect transistor, the second p-type
Output terminal of the drain electrode of field-effect transistor as variable bias current module, the input port of each bias current unit are equal
Connect with the grid of the first p type field effect transistor, the output port of each bias current unit with the second p-type field-effect
The drain electrode connection of transistor, the signal input port of each bias current unit is as variable bias current module input
Mouthful.
A kind of 5. receiver of dynamic control power consumption stated according to claim 4, which is characterized in that each bias current unit
Including reverser, third p type field effect transistor, the 4th p type field effect transistor and electronic switch；
The source electrode of the third p type field effect transistor is connect with power supply, and the grid of third p type field effect transistor is as signal
Input port, the drain electrode of third p type field effect transistor respectively with the grid of the 4th p type field effect transistor and electronic switch
First end connects, the input port of the second end of the electronic switch as bias current unit, the 4th p-type field-effect crystalline substance
The source electrode of body pipe is connect with power supply, the output port to drain as bias current unit of the 4th p type field effect transistor,
The input terminal of the reverser is connect with the grid of third p type field effect transistor, the output terminal of reverser and electronic switch
Third end connects.
6. the receiver of a kind of dynamic control power consumption stated according to claim 5, which is characterized in that the electronic switch is imitated for field
Answer transistor.
A kind of 7. receiver of dynamic control power consumption according to claim 1, which is characterized in that the power detection module
Including envelope detector, range detector or energy detector.
8. the control method of the receiver based on dynamic control power consumption described in claim 1, which is characterized in that including following step
Suddenly：
The power information of the output terminal of power detection module acquisition amplification frequency reducing module, believes with reference to preset power interval and power
Breath obtains control signal, and sends control signals to variable bias current module；
Variable bias current module is according to the corresponding bias current unit of the control signal behavior received to amplifying frequency reducing module
It is biased.
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| CN201711492015.4A CN108183717A (en) | 2017-12-30 | 2017-12-30 | A kind of receiver and control method of dynamic control power consumption |
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| US20070296514A1 (en) * | 2006-06-12 | 2007-12-27 | Samsung Electro-Mechanics Co., Ltd. | Oscillation stabilization circuit |
| CN102082579A (en) * | 2010-12-31 | 2011-06-01 | 东南大学 | Ultralow-power consumption constant-envelope transceiver system and implementation method thereof |
| CN202268845U (en) * | 2011-08-30 | 2012-06-06 | 上海集成电路研发中心有限公司 | Frequency mixer of wireless sensor network |
| CN103023431A (en) * | 2012-09-14 | 2013-04-03 | 深圳先进技术研究院 | Method for enlarging tuning range and improving phase noise performance of voltage-controlled oscillator |
| CN105594121A (en) * | 2013-07-09 | 2016-05-18 | 阿法克斯公司 | Power amplifier with input power protection circuits |
| CN207884607U (en) * | 2017-12-30 | 2018-09-18 | 广州市广晟微电子有限公司 | A kind of receiver of dynamic control power consumption |
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