CN209570864U - A kind of dynamic analog power control circuit applied to 5G base band - Google Patents
A kind of dynamic analog power control circuit applied to 5G base band Download PDFInfo
- Publication number
- CN209570864U CN209570864U CN201822130886.8U CN201822130886U CN209570864U CN 209570864 U CN209570864 U CN 209570864U CN 201822130886 U CN201822130886 U CN 201822130886U CN 209570864 U CN209570864 U CN 209570864U
- Authority
- CN
- China
- Prior art keywords
- amplifier
- output
- transistor
- connects
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Amplifiers (AREA)
Abstract
The utility model belongs to a kind of dynamic analog power control circuit applied to 5G base band, using a kind of technology of new dynamic adjustment power supply.Traditional power supply can not dynamically control the size of electric current, and the utility model proposes the modes that dynamic controls current source.Compared to traditional simulation low-pressure linear voltage source, the utility model may be implemented number pair low-pressure linear voltage source output voltage control.To dynamically adjust the voltage of grid, the efficiency of simulation low-pressure linear voltage source can be increased.Simultaneously, compared to traditional simulation low-pressure linear voltage source, the utility model proposes circuit more suitable for use in 5G base band, because the electric current of base band there can be biggish change with the function of each module, maximum efficiency may be implemented using dynamic numerically controlled simulation low-pressure linear voltage source.
Description
Technical field
The utility model belongs to electronic circuit field, more particularly, to the low-pressure linear circuit in integrated circuit.
Background technique
Power module is a crucial unit module in Analog Circuit Design, it provides electric energy, power module for system
In common voltage-stablizer be mostly direct current stabilizer, power supply is divided according to voltage-stablizer type, can be divided mainly into three kinds: Switching Power Supply
DC-DC, LDO linear voltage regulator and charge pump.It mainly include Switching Power Supply DC-DC, LDO linear voltage regulator and charge pump.Switch
Power supply DC-DC and LDO linear voltage regulator is the main product of current power management class chip.In buck converter, LDO line
Property voltage-stablizer has obtained increasingly because it is with easy of integration, low ripple, low noise, low quiescent current, advantages of simple structure and simple
It is widely applied, is commonly available to RF circuit, the low noises such as audio-frequency amplifier, the application of high-precision power supply.
Traditional LDO linear voltage regulator power supply generally comprises adjustment pipe, reference voltage source, error amplifier and overcurrent protection
The modules such as circuit and thermal-shutdown circuit.
Traditional LDO linear voltage regulator utilizes feedback resistive network sampled output feedback voltage, and passes through error amplifier
Realize that the differential amplification to feedback voltage and reference voltage, the output voltage of error amplifier connect with the grid of adjustment pipe, control
The output electric current of system adjustment pipe, stabilizes the output voltage.When load current mutates, since adjustment pipe output electric current cannot dash forward
Becoming, load capacitance does not walk load current, output voltage is caused to change, and feedback resistive network passes through the variation of sampling feedback voltage,
And by the amplification of error amplifier, changes the grid voltage of adjustment pipe, to adjust the output electric current of adjustment pipe, make defeated
Electric current and load current reach balance again out, guarantee that output voltage is kept constant.It changes from load current to adjustment and manages
The speed for changing outputting current steadily output voltage is limited by LDO transient response ability, and loop gain is bigger, error amplifier
Slew Rate is higher, and the transient response ability of LDO is stronger, then the time that LDO is stabilized the output voltage is shorter.
With the raising of chip integration and being widely used for digital-analog mix-mode chip, lead between the disparate modules of same chip
It is often used different supply voltages to be powered, therefore, Yao Jinliang avoids biography of the noise signal in high-frequency circuit between power supply
It broadcasts, improves power supply rejection ratio, to guarantee low to work normally the module of noise-sensitive.So the performance of power supply is for circuit
For it is very crucial.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of dynamic analog power supplys applied to 5G base band to control electricity
Road has higher performance compared to conventional power source module.
The utility model provides a kind of high performance power module, provides electric energy for system.The power module includes: number
Dynamic analog power supply, modulus and the D/A converting circuit of word control input buffer stage, error amplifier and output stage.
Preferably, the dynamic analog power supply regulates and controls the modulus and D/A converting circuit.
Preferably, the input buffer stage includes the first amplifier.The first amplifier positive input connects vref signal, bears
It is connected to input terminal with output end.
Preferably, the error amplifier includes the second amplifier.The second amplifier positive input passes through resistance and institute
It states the first amplifier to be connected, negative input is connected with the output stage.
Preferably, the output stage includes the first transistor and second transistor.The first transistor and described second
Transistor is MOSFET.The first transistor is connected with power vd DA with second transistor drain electrode, and source electrode is connected
Vout is exported as output end.The first crystal tube grid and analog-digital conversion circuit as described input terminal and second amplifier are defeated
Outlet is connected, and the second transistor grid is connected with D/A converting circuit output.
Preferably, the output of analog-digital conversion circuit as described is connected with the input of the digital-to-analogue conversion circuit.
Detailed description of the invention
By referring to the drawings to the description of the utility model embodiment, above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from.
Fig. 1 shows the schematic block diagram of dynamic analog power control circuit.
Fig. 2 shows the circuit diagrams of the operational amplifier of dynamic analog power control circuit.
Specific embodiment
Hereinafter reference will be made to the drawings is more fully described the utility model.In various figures, identical element is using similar
Appended drawing reference indicate.For the sake of clarity, the various pieces in attached drawing are not necessarily to scale.In addition, may in figure
Certain well known parts are not shown.
Many specific details of the utility model, such as the structure of device, material, size, place are described hereinafter
Science and engineering skill and technology, to be more clearly understood that the utility model.But just as the skilled person will understand,
The utility model can not be realized according to these specific details.
Fig. 1 shows the schematic block diagram of dynamic analog power control circuit.
As shown in Figure 1, dynamic analog power control circuit 100 include numerically controlled dynamic analog power supply 101, modulus and
D/A converting circuit 102, input buffer stage and error amplifier circuit 103, output-stage circuit 104.Input buffer stage and error
The positive input that amplifier in buffer stage is inputted in amplifier circuit 103 connects vref signal, and power supply meets VDDA.The input of amplifier negative sense
End connects with output end, and is connected with resistance R1.In the resistance R1 other end and input buffer stage and error amplifier circuit 103
The positive input of the amplifier of error amplifier is connected, and is connected with resistance R2, resistance R2 other end ground connection.Error amplifier
The negative input of amplifier meets input node Vin-, and power supply meets VDDA.
Four resistance Rf1, Rf2, Rf3, Rf4 are all connected to node Vin-, two resistance Rf2, Rf4 in output-stage circuit 104
Other end ground connection, the other end of two resistance Rf1, Rf3 is connected and is connected to output node Vout.Field in output-stage circuit 104
The source electrode of effect pipe MPT1 is connected with node Vout, the grid and input buffer stage and error amplifier circuit of field-effect tube MPT1
The output end of the amplifier of error amplifier in 103 is connected, and with the analog to digital conversion circuit in modulus and D/A converting circuit 102
Input terminal be connected, the drain electrode of field-effect tube MPT1 meets power vd DA.The source electrode of field-effect tube MPT2 in output-stage circuit 104
It is connected with node Vout, the grid of field-effect tube MPT2 is defeated with the D/A converting circuit in modulus and D/A converting circuit 102
Outlet is connected, and the drain electrode of field-effect tube MPT2 meets power vd DA.
The input terminal phase of the output end of analog to digital conversion circuit and D/A converting circuit in modulus and D/A converting circuit 102
Even.
Numerically controlled dynamic analog power supply 101 regulates and controls modulus and D/A converting circuit 102.
Fig. 2 shows the circuit diagrams of the operational amplifier of dynamic analog power control circuit.
As shown in Fig. 2, field-effect tube MNa2 source electrode is grounded.Field-effect tube MNa2 drain electrode connects with its grid, and imitates with field
Should the grid of pipe MNa4 and MNa6 connect, and be connected with the source electrode of field-effect tube MNa1.Field-effect tube MNa1 drain electrode and its grid
Connect, and connects with the grid of field-effect tube MNa3 and MNa 5, and be connected with the drain electrode of field-effect tube MPa6.Field-effect tube
The source electrode of MPa6 meets power vd D, and grid meets bias voltage BIAS.Field-effect tube MNa4 source electrode ground connection, drain electrode and differential pair tube
The drain electrode of MPa2 is connected, and is connected with the source electrode of field-effect tube MNa3, and the source electrode of differential pair tube MPa2, MPa3 interconnect, and
It is connected with the drain electrode of MPa1, the source electrode of field-effect tube MPa1 meets power vd D, and grid meets bias voltage BIAS, field-effect tube MNa6
Source electrode ground connection, drain electrode is connected with the drain electrode of differential pair tube MPa3, and is connected with the source electrode of field-effect tube MNa5.Differential pair tube MPa2
Grid meets INP, and differential pair tube MPa3 grid meets INN.Two field-effect tube MNa5 are connected and with MPa5 drain electrode as output node
The drain electrode of VOP, two field-effect tube MNa3, MPa4 are connected with each other, and are connected with the grid of field-effect tube MPa4, MPa5, field effect
Should the source electrode of pipe MPa4, MPa5 meet power vd D.
Claims (5)
1. a kind of dynamic analog power control circuit applied to 5G base band is system for realizing high performance power module
There is provided electric energy, it is characterised in that: the power module includes: numerically controlled dynamic analog power supply, modulus and digital-to-analogue conversion electricity
Road, input buffer stage, error amplifier and output stage, in which:
The numerically controlled dynamic analog power supply 101 connects modulus and D/A converting circuit 102；The modulus and digital-to-analogue conversion
The output end of the input terminal connection error amplifier of analog-digital converter ADC in device, the output end of ADC connect digital analog converter
The input terminal of DAC, the grid of the output end connection transistor MPT2 of DAC；The operational amplifier OP of the input buffer stage is just
Input terminal connects reference voltage VREF, negative input end connects the output end of amplifier OP, and connect with the upper end of resistance R1, R1's
Lower end connects the upper end of R2, and connects the positive input terminal of error amplifier, and the lower end of resistance R2 connects ground；The error amplification
The negative input end of device connects feedback resistance Rf1Lower end and Rf2Upper end, Rf2Lower end connect ground, the output end of error amplifier
The grid end of NMOS transistor MPT1, the leakage connection breaking supply voltage VDDA of MPT1 are connected, source connects Rf1Upper end, be labeled as
Vout；The drain terminal of the output stage NMOS transistor connects supply voltage VDDA, and source connects resistance Rf3Upper end Vout, Rf3's
Lower end connects resistance Rf4Upper end, Rf4Lower end connect ground, the error amplifier and input buffer stage supply voltage be
VDDA。
2. a kind of dynamic analog power control circuit applied to 5G base band according to claim 1, it is characterised in that: institute
The operational amplifier OP for stating error amplifier and inputting in buffer stage includes 6 NMOS transistors and 6 PMOS transistors, PMOS
The grid of input transistors MPa2 and MPa3 are separately connected INP and INN, and the output token of operational amplifier is VOP.
3. a kind of dynamic analog power control circuit applied to 5G base band according to claim 1, it is characterised in that: institute
It states dynamic analog power supply and regulates and controls the modulus and D/A converting circuit.
4. a kind of dynamic analog power control circuit applied to 5G base band according to claim 1, it is characterised in that: institute
Stating input buffer stage includes the first amplifier, and the first amplifier positive input connects reference signal, negative input and output end
It is connected；The error amplifier includes the second amplifier, and the second amplifier positive input passes through resistance and first amplifier
It is connected, negative input is connected with the output stage；The output stage includes the first transistor and second transistor, and described first
Transistor and the second transistor are MOSFE transistor；The first transistor and the second transistor drain with
Power supply is connected, and source electrode is connected to be exported as output end；The first crystal tube grid and analog-digital conversion circuit as described input terminal and
The output end of second amplifier is connected, and the second transistor grid is connected with D/A converting circuit output.
5. a kind of dynamic analog power control circuit applied to 5G base band according to claim 1, it is characterised in that: institute
The output for stating analog to digital conversion circuit is connected with the input of the digital-to-analogue conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822130886.8U CN209570864U (en) | 2018-12-19 | 2018-12-19 | A kind of dynamic analog power control circuit applied to 5G base band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822130886.8U CN209570864U (en) | 2018-12-19 | 2018-12-19 | A kind of dynamic analog power control circuit applied to 5G base band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209570864U true CN209570864U (en) | 2019-11-01 |
Family
ID=68330334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822130886.8U Active CN209570864U (en) | 2018-12-19 | 2018-12-19 | A kind of dynamic analog power control circuit applied to 5G base band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209570864U (en) |
-
2018
- 2018-12-19 CN CN201822130886.8U patent/CN209570864U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100225714B1 (en) | Amplifier circuit and semiconductor integrated circuit device for portable telephone | |
| Lee et al. | Design of low-power analog drivers based on slew-rate enhancement circuits for CMOS low-dropout regulators | |
| CN101419477B (en) | Controllable low voltage differential linear voltage stabilizing circuit for providing multi-output voltages | |
| TW201122755A (en) | Low dropout regulator | |
| CN101692603B (en) | Gain bootstrap type C class reverser and application circuit thereof | |
| US20010005163A1 (en) | Semiconductor integrated circuit | |
| CN111522389A (en) | Wide-input low-dropout linear voltage stabilizing circuit | |
| TW201217934A (en) | Programmable low dropout linear regulator | |
| CN101471632A (en) | Self-bias low-voltage operation transconductance amplifier circuit with controllable loop gain | |
| CN107024958B (en) | A kind of linear voltage-stabilizing circuit with fast load transient response | |
| US7733182B2 (en) | Hybrid class AB super follower | |
| CN110231851A (en) | Output voltage compensating circuit, method, voltage regulator circuit and display device | |
| CN103631299B (en) | A kind of constant pressure difference, variable output voltage low pressure difference linear voltage regulator | |
| CN108733118A (en) | A kind of high PSRR quick response LDO | |
| CN211878488U (en) | Wide-input low-dropout linear voltage stabilizing circuit | |
| CN104881070A (en) | Ultra-low power consumption LDO circuit applied to MEMS | |
| JPH04352508A (en) | Cmos transconductance amplifier with floating operating point | |
| CN107272808B (en) | A kind of LDO circuit applied to integrated chip | |
| CN103414441A (en) | Open loop amplifier with stable output common-mode voltage | |
| CN201867672U (en) | LDO (Low Dropout Regulator) circuit in mobile terminal | |
| CN209570864U (en) | A kind of dynamic analog power control circuit applied to 5G base band | |
| CN117060224A (en) | Laser current drive control circuit and control method | |
| CN208188715U (en) | The LDO circuit of high PSRR quick response | |
| CN109150188B (en) | A kind of current mode digital-to-analog converter output-stage circuit of adjustable output common mode level | |
| CN102884723A (en) | Current-voltage converter having a current reflector, input stage of an amplifier and corresponding amplifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |