WO2017219720A1 - 一种多模式射频发射机及信号传输方法、计算机存储介质 - Google Patents

一种多模式射频发射机及信号传输方法、计算机存储介质 Download PDF

Info

Publication number
WO2017219720A1
WO2017219720A1 PCT/CN2017/077389 CN2017077389W WO2017219720A1 WO 2017219720 A1 WO2017219720 A1 WO 2017219720A1 CN 2017077389 W CN2017077389 W CN 2017077389W WO 2017219720 A1 WO2017219720 A1 WO 2017219720A1
Authority
WO
WIPO (PCT)
Prior art keywords
input
type transistor
output
current
signals
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.)
Ceased
Application number
PCT/CN2017/077389
Other languages
English (en)
French (fr)
Inventor
胡劼
谢豪律
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanechips Technology Co Ltd
Original Assignee
Sanechips Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanechips Technology Co Ltd filed Critical Sanechips Technology Co Ltd
Publication of WO2017219720A1 publication Critical patent/WO2017219720A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • 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
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0416—Circuits with power amplifiers having gain or transmission power control

Definitions

  • the present invention relates to wireless communication technologies, and in particular, to a multi-mode radio frequency transmitter and signal transmission method, and a computer storage medium.
  • the traditional direct upconversion transmitter architecture is shown in Figure 1:
  • the DSP generates an I-channel Q signal to two DACs respectively; the output of the DAC is connected to the low-pass filter BBF and then output to the VI or directly to II; I and Q After the signal of the road is combined with VI and II, the local oscillator signals LO_I and LO_Q signals with 90 readings are directly up-converted; the converted signal is connected to the Balun output through the VGA control gain.
  • the module structure inside the conventional direct upconversion transmitter architecture is as shown in FIG. 2: the DAC signal is output to a low pass filter (LPF, Low Pass Filter); the LPF is composed of an analog operational amplifier, and the output single is driven. Capability, the positive and negative outputs drive the resistors Rin1 and Rin2 respectively; Rin1 and Rin2 convert the voltage signal into a current signal, and finally output through the variable current mirrors composed of the FETs M1, M2 and M3, M4; LPF1, LPF2 The capacitor Co acts to filter the output signal. As shown in Figure 2, at V-to-I (voltage to current), a large current bias I5 is required, which causes an increase in input resistance and, therefore, higher power consumption.
  • LPF Low Pass Filter
  • embodiments of the present invention are expected to provide a multi-mode radio frequency transmitter and signal transmission method, and a computer storage medium, which reduce the input impedance of the V-to-I, thereby reducing power consumption.
  • an embodiment of the present invention provides a multi-mode radio frequency transmitter, which may include:
  • Adjusting the device configured to receive two input current signals, respectively amplifying the two input current signals to obtain two output current signals, and adjusting two subsequent input current signals according to the two output current signals, so that the The difference between the voltage difference between the two input current signal input nodes and 0 satisfies the preset voltage range;
  • the two input ends of the adjusting device are respectively configured to receive the two input current signals, and the two output ends of the adjusting device are configured to output two output current signals.
  • the multi-mode radio frequency transmitter further includes:
  • Two first LPFs are respectively configured to filter one output current signal to obtain one output signal
  • the two output ends of the adjusting device are respectively connected to the input ends of the two first LPFs, and the output ends of the two first LPFs are respectively configured to output two output signals.
  • the multi-mode radio frequency transmitter further includes:
  • Two first switches configured to short the two first LPFs when the two first switches are closed; wherein two ends of each of the first switches are respectively connected to two ends of the corresponding first LPF .
  • the adjusting device comprises:
  • a first operational amplifier configured to amplify the two input currents to obtain the two output current signals
  • Two common source amplifying circuits are respectively configured to adjust the input current signal according to one of the output currents and the corresponding output current signal;
  • the output stage of the first operational amplifier is multiplexed with the common source amplifying circuit to form a composite structure, forming a current amplifying circuit with a low input impedance; the two input ends of the first operational amplifier are respectively configured as Receiving one of the two input current signals, the two output ends of the first operational amplifier are respectively connected to the input ends of the two common source amplifying circuits, and the output ends of the two common source amplifying circuits are configured To output the output current signal.
  • the common source amplifying circuit includes:
  • a first current bias configured to output a steady current signal
  • a first N-type transistor configured to amplify a corresponding output current signal of the output current signal, and adjust one input after the amplified output current signal, the stable current signal, and the one input current signal Current signal
  • the first current biased input is coupled to the high voltage signal
  • the first current biased output is coupled to the source of the first N-type transistor and the input of the first operational amplifier, respectively.
  • the drain of the first N-type transistor is connected to ground, and the gate of the first N-type transistor is configured to output the output current signal.
  • the multi-mode radio frequency transmitter further includes:
  • the second LPF is configured to receive two input voltage signals, and filter the two input voltage signals to obtain two filtered voltage signals;
  • Two voltage current conversion devices are respectively configured to convert the two filtered voltage signals into the two input current signals
  • the output end of the second LPF is connected to the first end of the corresponding voltage current conversion device, and the second end of the voltage current conversion device is connected to the two input ends of the corresponding adjustment device.
  • the multi-mode radio frequency transmitter further includes:
  • Two second switches configured to short the two second LPFs and the two voltage current conversion devices when the two second switches are simultaneously closed;
  • one end of each of the second switches is connected to an input end of a corresponding second LPF; and the other end of each of the second switches is connected to an output end of a corresponding voltage current converter.
  • the adjusting device comprises:
  • a gate of the first P-type transistor inputs a first input current signal; a source of the first P-type transistor and a source of the first N-type transistor, a gate of the first N-type transistor, and a second a gate of the N-type transistor is connected to an input end of the first LPF; a drain of the first P-type transistor is connected to a source of the second P-type transistor; and a source of the second N-type transistor Connected to the source of the third P-type transistor, the first end of the first resistor, and the second input current signal; a gate of the triple P-type transistor is connected to a gate of the fourth P-type transistor, a gate of the fifth P-type transistor, a source of the fifth P-type transistor, and a source of the third N-type transistor, respectively, the fourth a source of the P-type transistor is connected to a first end of the second resistor and a source of the fourth N-type transistor, and a gate of the third N-type transistor is connected to an output of
  • the first P-type transistor to the seventh P-type transistor comprise a P-type field effect transistor or a PNP transistor; the first N-type transistor to the sixth N-type transistor comprise an N-type field effect Transistor or NPN transistor.
  • an embodiment of the present invention provides a signal transmission method, which may include:
  • the method further includes:
  • an embodiment of the present invention provides a computer storage medium storing computer executable instructions configured to perform the above signal transmission method.
  • two input current signals are received by the adjusting device, and the two input current signals are respectively amplified to obtain two output current signals, and according to the two output outputs
  • the two input current signals after the current signal is adjusted, so that the voltage difference between the two input current signal input nodes tends to 0; the two input ends of the adjusting device are respectively used to receive the two input current signals
  • the two outputs of the adjustment device are used to output two output current signals.
  • the subsequent input current can be adjusted following the amplification current, so that the voltage difference between the input signals of the two input current signals tends to zero, thus the input impedance of the multi-mode RF transmitter. It also decreases, thus reducing power loss.
  • FIG. 1 is a schematic structural diagram 1 of a conventional direct upconversion transmitter architecture provided by the prior art
  • FIG. 2 is a schematic structural view 2 of a conventional direct upconversion transmitter architecture provided by the prior art
  • FIG. 3 is a schematic structural diagram 1 of a multi-mode radio frequency transmitter according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram 2 of a multi-mode radio frequency transmitter according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an adjusting device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a common source amplifying circuit according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram 3 of a multi-mode radio frequency transmitter according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a second LPF according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram 4 of a multi-mode radio frequency transmitter according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram 5 of a multi-mode radio frequency transmitter according to an embodiment of the present invention.
  • FIG. 11 is a flowchart of a signal transmission method according to an embodiment of the present invention.
  • the embodiment of the present invention provides a multi-mode radio frequency transmitter 10, as shown in FIG. 3, which may include:
  • the adjusting device 101 is configured to receive two input current signals, respectively amplify the two input current signals to obtain two output current signals, and adjust two subsequent input current signals according to the two output current signals to make
  • the difference between the voltage difference between the two input current signal input nodes and 0 is a predetermined voltage range; it can be understood that the preset voltage range can be configured to represent a state in which the voltage difference approaches 0;
  • the two input ends of the adjusting device 101 are respectively configured to receive the two input currents, and the two output ends of the adjusting device 101 are configured to output two output currents.
  • the two input current signals are differential signals.
  • the multi-mode radio frequency transmitter 10 further includes:
  • Two first LPFs 102 are respectively configured to filter one output current signal to obtain one output signal
  • the two output ends of the adjusting device are respectively connected to the input ends of the two first LPFs, and the output ends of the two first LPFs are respectively configured to output two output signals.
  • the multi-mode radio frequency transmitter 10 further includes:
  • the two first switches 103 are configured to short the two first LPFs 102 when the two first switches 103 are closed; wherein the two ends of each of the first switches 103 are respectively associated with the corresponding first LPFs 102 The two ends are connected.
  • the first switch 103 when the first LPF 102 is required to filter the signal, the first switch 103 can be turned on; when the signal is desired to pass through, the first LPF 102 can be bypassed by the first switch 103.
  • the adjusting device 101 specifically includes:
  • the first operational amplifier 1011 is configured to amplify the two input currents to obtain the two output current signals;
  • Two common source amplifying circuits 1012 are respectively configured to adjust the input current signals according to one of the output currents and the corresponding output current signals;
  • the output stage of the first operational amplifier 1011 is multiplexed with the common source amplifying circuit 1012 to form a composite structure, forming a current amplifying circuit with a low input impedance; two input ends of the first operational amplifier 1011
  • the two output terminals of the first operational amplifier 1011 are respectively connected to the input ends of the two common source amplifying circuits 1012, and the two common source amplifications are respectively configured to receive one of the two input current signals.
  • An output of circuit 1012 is configured to output the output current signal.
  • the two common source amplifying circuits are a feedback circuit that amplifies the current feedback to the input of the first operational amplifier to determine whether the input current of the operational amplifier needs to be increased or decreased. Specifically, when the amplification current exceeds the preset value, the feedback amplification current will lower the voltage of the first operational amplifier; conversely, when the amplification current is less than the preset value, the feedback amplification current will increase. Put the voltage,
  • the common source amplifying circuit 1012 includes:
  • a first current bias 10121 configured to output a steady current signal
  • the first N-type transistor 10122 is configured to amplify a corresponding output current signal of the output current signal, and adjust the following one according to the amplified output current signal, the stable current signal, and the one input current signal.
  • the input end of the first current bias 10121 is connected to the high voltage signal, and the output end of the first current bias 10121 is respectively connected to the source of the first N-type transistor 10122 and the input end of the first operational amplifier 1011. Connected, the drain of the first N-type transistor 10122 is connected to ground, and the gate of the first N-type transistor 10122 is configured to output the output current signal.
  • the output current is input to the gate of the first N-type transistor 10122, amplified by the first N-type transistor 10122, outputted from the first N-type transistor 10122, and outputted from the drain of the first N-type transistor 10122 to the ground, the first N.
  • the source stage of the transistor 10122 receives the current signal output by the first current bias 10121, and the first current bias 10121 also inputs the current signal to the first operational amplifier 1011.
  • the multi-mode radio frequency transmitter 10 further includes:
  • the second LPF 104 is configured to receive two input voltage signals, and filter the two input voltage signals to obtain two filtered voltage signals;
  • the two voltage-current conversion devices 105 are respectively configured to signal the two-way filtered voltages into the two input current signals; it is worth noting that the two input voltage signals are differential signals.
  • the output end of the second LPF 104 is connected to the first end of the corresponding voltage-current conversion device 105, and the second end of the voltage-current conversion device 105 is connected to the two input terminals of the corresponding adjustment device 101.
  • the structure of the second LPF 104 is as shown in FIG. 8.
  • R1, R2, R3, R4, R5, and R6 are resistors, and C1 and C2 are capacitors.
  • the voltage-current conversion device is a variable resistor.
  • the multi-mode radio frequency transmitter 10 further includes:
  • Two second switches 106 configured to short the two second LPFs when the two second switches 106 are simultaneously closed;
  • each of the second switches 106 is connected to a corresponding second LPF 104 and an input end of two voltage current conversion devices 105; the other end of each of the second switches 106 and a corresponding one The output terminals of the piezoelectric current converting device 105 are connected.
  • the multi-mode RF transmitter 10 is operating in a mode that receives a current input signal (that is, when the multi-mode RF transmitter receives an input current), then no voltage/current conversion is required, and direct access is required. Adjusting the device, that is, shorting the second LPF and the voltage-current conversion device; if the multi-mode RF transmitter 10 is operating in a mode of receiving a voltage signal input (that is, when the multi-mode RF transmitter receives an input current), The voltage and current conversion is required, and the second LPF and the voltage-current conversion device cannot be shorted.
  • the adjusting device 101 includes:
  • a gate of the first P-type transistor inputs a first input current signal; a source of the first P-type transistor MP1 and a source of the first N-type transistor, a gate of the first N-type transistor MN1, and a gate of the second N-type transistor MN2 is connected to an input end of the first LPF; a drain of the first P-type transistor MP1 is connected to a source of the second P-type transistor MP2; the second N The source of the transistor MN2 is connected to the source of the third P-type transistor MP3 and the first end of the first resistor, and is connected to the second input current signal; the gates of the third P-type transistor MP3 are respectively and the fourth The gate of the P-type transistor MP4, the gate of the fifth P-type transistor MP5, the source of the fifth P-type transistor MP5, and the source of the third N-type transistor MN3 are connected, and the source of the fourth P-type transistor MP4 Connected to a first end of the second resistor and a source of the fourth N-type
  • the multi-mode radio frequency transmitter 10 can be, but is not limited to, a structure composed of MP1, MP7, MP2, MP4, MP3, MN5, and MN1; 2.
  • Common mode feedback can be, but is not limited to, A0, MN3, and MP5.
  • MP4, MP3 structure; MN4, MN2 is the output stage NMOS multiplexing of current mirror and fully differential op amp; 4, in the fully differential op amp of Figure 10, MP3 and MP4 are simultaneously multiplexed into the first current bias 10121 5, LPF1 and LPF2 in Figure 10 (ie, the two first LPFs) can be implemented by the ground compensation capacitor multiplexing of the fully differential op amp.
  • the first P-type transistor to the seventh P-type transistor comprise a P-type field effect transistor or a PNP transistor; the first N-type transistor to the sixth N-type transistor Includes an N-type field effect transistor or an NPN transistor. This embodiment does not limit this.
  • This embodiment provides a signal transmission method. As shown in FIG. 11, the method may include:
  • Step 201 Receive two input currents.
  • Step 202 Amplify two input currents to obtain two output current signals.
  • Step 203 Adjust the input current signal according to the two output current signals, so that the difference between the voltage difference between the two input current signal input nodes and 0 satisfies a preset voltage range.
  • the subsequent input current can be adjusted following the output current, so that the voltage difference between the input voltage signals of the two input current signals At 0, the input impedance of the multimode RF transmitter is also reduced, thus reducing power loss.
  • a multi-mode radio frequency transmitter is used, and the method further includes:
  • Step 200a receiving two input voltage signals
  • Step 200b Convert the two input voltage signals into the two input current signals.
  • the multi-mode RF transmitter 10 operates in a mode that receives a current input signal (that is, when the multi-mode RF transmitter receives an input current), then no voltage/current conversion is required, and direct access adjustment is performed.
  • the device performs steps 201 to 203; if the multi-mode RF transmitter 10 operates in a mode of receiving a voltage input signal input (that is, when the multi-mode RF transmitter receives an input current), voltage-current conversion is required, Steps 200a to 203 are performed.
  • Embodiments of the present invention also provide a computer storage medium in which computer executable instructions are stored, the computer executable instructions being configured to perform the signal transmission method described above.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • two input current signals are received by the adjusting device, and the two input current signals are respectively amplified to obtain two output current signals, and according to the two output outputs
  • the two input current signals after the current signal is adjusted, so that the voltage difference between the two input current signal input nodes tends to 0; the two input ends of the adjusting device are respectively used to receive the two input current signals
  • the two outputs of the adjustment device are used to output two output current signals.
  • the subsequent input current can be adjusted following the amplification current, so that the voltage difference between the input signals of the two input current signals tends to zero, thus the input impedance of the multi-mode RF transmitter. It also decreases, thus reducing power loss.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

本发明实施例公开了一种多模式射频发射机，包括：调整器件，配置为接收两路输入电流信号，分别放大所述两路输入电流信号，得到两路输出电流信号，并根据所述两路输出电流信号调整之后的两路输入电流信号，使得所述之后的两路输入电流信号输入节点的电压差与0之间的差值满足预设的电压范围；所述调整器件的两个输入端分别配置为接收所述两路输入电流信号，所述调整器件的两个输出端配置为输出两路输出电流信号。本实施例还公开了一种信号传输方法、计算机存储介质。

Description

一种多模式射频发射机及信号传输方法、计算机存储介质 技术领域
本发明涉及无线通信技术，尤其涉及一种多模式射频发射机及信号传输方法、计算机存储介质。
背景技术
传统直接上变频的发射机架构如图1所示：DSP分别产生I路Q路信号给两路DAC；DAC的输出接低通滤波器BBF后输出给V-I或直接输出给I-I；I路与Q路的信号在V-I与I-I合路之后，与相差90读的本振信号LO_I以及LO_Q信号直接上变频；变频后的信号经过VGA控制增益后接Balun输出。
具体的，传统直接上变频的发射机架构内部的模块结构如图示2所示：DAC信号输出给低通滤波器(LPF，Low Pass Filter)；LPF由模拟运放构成，其输出单具有驱动能力，正负输出端分别驱动电阻Rin1和Rin2；Rin1和Rin2将电压信号转为电流信号后，分别经过场效应管M1、M2以及M3、M4构成的可变电流镜最终输出；LPF1、LPF2、电容Co起到对输出信号进行滤波的作用。如图2所示，在V-to-I(电压转电流)时，需要一个大的电流偏置I5，该电流偏置会导致输入电阻增大，因此，功耗较高。
发明内容
为解决上述技术问题，本发明实施例期望提供一种多模式射频发射机及信号传输方法、计算机存储介质，减小V-to-I的输入阻抗，从而减小功率消耗。
本发明实施例的技术方案是这样实现的：
第一方面，本发明实施例提供了一种多模式射频发射机，可以包括：
调整器件，配置为接收两路输入电流信号，分别放大所述两路输入电流信号，得到两路输出电流信号，并根据所述两路输出电流信号调整之后的两路输入电流信号，使得所述之后的两路输入电流信号输入节点的电压差与0之间的差值满足预设的电压范围；
所述调整器件的两个输入端分别配置为接收所述两路输入电流信号，所述调整器件的两个输出端配置为输出两路输出电流信号。
在上述方案中，所述多模式射频发射机还包括：
两个第一LPF，分别配置为过滤一路输出电流信号，得到一路输出信号；
其中，所述调整器件的两个输出端分别与所述两个第一LPF的输入端连接，所述两个第一LPF的输出端分别配置为输出两路输出信号。
在上述方案中，所述多模式射频发射机还包括：
两个第一开关，配置为当所述两个第一开关闭合时，短接所述两个第一LPF；其中，每个第一开关的两端分别与对应的第一LPF的两端相连。
在上述方案中，所述调整器件包括：
第一运放，配置为放大所述两路输入电流，得到所述两路输出电流信号；
两个共源放大电路，分别配置为根据其中一路输出电流和对应的输出电流信号，调整之后的输入电流信号；
其中，所述第一运放的输出级与所述共源放大电路复用，构成复合结构，形成一种低输入阻抗的电流放大电路；所述第一运放的两个输入端分别配置为接收所述两路输入电流信号中的一路，所述第一运放的两个输出端分别与所述两个共源放大电路的输入端相连，所述两个共源放大电路的输出端配置为输出所述输出电流信号。
在上述方案中，所述共源放大电路包括：
第一电流偏置，配置为输出一个稳定电流信号；
第一N型晶体管，配置为将所述输出电流信号中对应的输出电流信号进行放大，并根据放大后的输出电流信号、所述稳定电流信号和所述一路输入电流信号，调整之后的一路输入电流信号；
其中，第一电流偏置的输入端与高电压信号相连，所述第一电流偏置的输出端分别与第一N型晶体管的源极和所述第一运放的输入端相连，所述第一N型晶体管的漏极连地，所述第一N型晶体管的栅极配置为输出所述输出电流信号。
在上述方案中，所述多模式射频发射机还包括：
第二LPF，分别配置为接收两路输入电压信号，对所述两路输入电压信号进行滤波，得到两路滤波电压信号；
两个电压电流转换器件，分别配置为将所述两路滤波电压信号转化为所述两路输入电流信号；
其中，所述第二LPF的输出端与对应的电压电流转换器件的第一端相连，所述电压电流转换器件的第二端和对应的调整器件的两个输入端相连。
在上述方案中，所述多模式射频发射机还包括：
两个第二开关，配置为当所述两个第二开关同时闭合时，将所述两个第二LPF和所述两个电压电流转换器件短接；
其中，每个所述第二开关的一端与对应的第二LPF的输入端相连；每个所述第二开关的另一端与对应的电压电流转换器的输出端相连。
在上述方案中，所述调整器件包括：
第一P型晶体管的栅极输入第一路输入电流信号；所述第一P型晶体管的源极分别和第一N型晶体管的源极、所述第一N型晶体管的栅极和第二N型晶体管的栅极和所述第一LPF的输入端相连；所述第一P型晶体管的漏极和所述第二P型晶体管的源极相连；所述第二N型晶体管的源极与第三P型晶体管的源级、第一电阻的第一端相连，接入第二路输入电流信号；所述第 三P型晶体管的栅极分别与第四P型晶体管的栅极、第五P型晶体管的栅极、第五P型晶体管的源极和第三N型晶体管的源极相连，所述第四P型晶体管的源极分别与第二电阻的第一端和第四N型晶体管的源极相连，所述第三N型晶体管的栅极与放大器的输出端相连，所述放大器的第一输入端分别与所述第一电阻的第二端和第二电阻的第二端相连，所述放大器的第二端配置为输入所述稳定电流信号，所述第二P型晶体管的栅极分别与所述第六P型晶体管栅极、所述第六P型晶体管的源极和电流偏置的输入端相连，所述第二P型晶体管的源极还与所述第七P型晶体管的漏极相连，所述第七P型晶体管的源极分别和第五N型晶体管的源极、所述第五N型晶体管的栅极和第四N型晶体管的栅极和第二LPF的输入端相连；所述第一LPF的输出端输出第一路输出信号；所述第二LPF的输出端输出第二路输出信号；所述第二p型晶体管的漏极、第三P型晶体管的漏极、所述第四p晶体管的漏极、所述第五P型晶体管的漏极和所述第六p晶体管的漏极都接高电压，所述第一N型晶体管的漏极、第二N型晶体管的漏极、第四N型晶体管的漏极、第五N型晶体管的漏极和第六N型晶体管的漏极都接地。
在上述方案中，所述第一P型晶体管至所述第七P型晶体管包括P型场效应晶体管或PNP晶体管；所述第一N型晶体管至所述第六N型晶体管包括N型场效应晶体管或NPN晶体管。
第二方面，本发明实施例提供了一种信号传输方法，可以包括：
接收两路输入电流信号；
放大所述两路输入电流，得到所述两路输出电流信号；
根据所述两路输出电流信号调整之后的输入电流信号，使得所述之后的两路输入电流信号输入节点的电压差与0之间的差值满足预设的电压范围。
在上述方案中，所述放大所述两路输入电流信号，得到所述两路输出 电流信号之前，所述方法还包括：
接收两路输入电压信号；
将所述两路输入电压信号转化为所述两路输入电流信号。
第三方面，本发明实施例提供了一种计算机存储介质，其中存储有计算机可执行指令，该计算机可执行指令配置为执行上述信号传输方法。
采用本发明实施例的多模式射频发射机及信号传输方案，通过调整器件接收两路输入电流信号，分别放大所述两路输入电流信号，得到两路输出电流信号，并根据所述两路输出电流信号调整之后的两路输入电流信号，使得所述之后的两路输入电流信号输入节点的电压差趋于0；所述调整器件的两个输入端分别用于接收所述两路输入电流信号，所述调整器件的两个输出端用于输出两路输出电流信号。这样一来，根据放大电流调整之后的输入电流，使得之后的输入电流能够跟随放大电流进行调整，使得两路输入电流信号输入节点的电压差趋于0，这样，多模式射频发射机的输入阻抗也会减小，因此，减小了功率损耗。
附图说明
图1为现有技术提供的一种传统直接上变频的发射机架构的结构示意图1；
图2为现有技术提供的一种传统直接上变频的发射机架构的结构示意图2；
图3为本发明实施例提供的一种多模式射频发射机的结构示意图1；
图4为本发明实施例提供的一种多模式射频发射机的结构示意图2；
图5为本发明实施例提供的一种调整器件的结构示意图；
图6为本发明实施例提供的一种共源放大电路的结构示意图；
图7为本发明实施例提供的一种多模式射频发射机的结构示意图3；
图8为本发明实施例提供的一种第二LPF的结构示意图；
图9为本发明实施例提供的一种多模式射频发射机的结构示意图4；
图10为本发明实施例提供的一种多模式射频发射机的结构示意图5；
图11为本发明实施例提供的一种信号传输方法的流程图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。
本发明实施例提供一种多模式射频发射机10，如图3所示，可以包括：
调整器件101，配置为接收两路输入电流信号，分别放大所述两路输入电流信号，得到两路输出电流信号，并根据所述两路输出电流信号调整之后的两路输入电流信号，使得所述之后的两路输入电流信号输入节点的电压差与0之间的差值满足预设的电压范围；可以理解地，该预设的电压范围可以配置为表征电压差趋近于0的状态；
所述调整器件101的两个输入端分别配置为接收所述两路输入电流，所述调整器件101的两个输出端配置为输出两路输出电流。
值得说明的是，两路输入电流信号是差分信号。
在本发明实施例一实施方式中，如图4所示，所述多模式射频发射机10还包括：
两个第一LPF102，分别配置为过滤一路输出电流信号，得到一路输出信号；
其中，所述调整器件的两个输出端分别与所述两个第一LPF的输入端连接，所述两个第一LPF的输出端分别配置为输出两路输出信号。
在本发明实施例一实施方式中，如图4所示，所述多模式射频发射机10还包括：
两个第一开关103，配置为当所述两个第一开关103闭合时，短接所述两个第一LPF102；其中，每个第一开关103的两端分别与对应的第一LPF102 的两端相连。
这样，根据不同的工作场景，在需要第一LPF102对信号进行滤波时，则可以打开第一开关103；当希望信号直通时则可以选择通过第一开关103旁路第一LPF102。
在本发明实施例一实施方式中，如图5所示，所述调整器件101具体包括：
第一运放1011，配置为放大所述两路输入电流，得到所述两路输出电流信号；
两个共源放大电路1012，分别配置为根据其中一路输出电流和对应的输出电流信号，调整之后的输入电流信号；
其中，所述第一运放1011的输出级与所述共源放大电路1012复用，构成复合结构，形成一种低输入阻抗的电流放大电路；所述第一运放1011的两个输入端分别配置为接收所述两路输入电流信号中的一路，所述第一运放1011的两个输出端分别与所述两个共源放大电路1012的输入端相连，所述两个共源放大电路1012的输出端配置为输出所述输出电流信号。
这里，两个共源放大电路是一个反馈电路，它将放大电流反馈会第一运放的输入端，从而确定需要增大还是减小运放的输入电流。具体的，当放大电流超过预设值时，反馈的放大电流就会拉低第一运放的电压；相反的，当放大电流小于预设值时，反馈的放大电流就会升高第一运放的电压，
在本发明实施例一实施方式中，如图6所示，所述共源放大电路1012包括：
第一电流偏置10121，配置为输出一个稳定电流信号；
第一N型晶体管10122，配置为将所述输出电流信号中对应的输出电流信号进行放大，并根据放大后的输出电流信号、所述稳定电流信号和所述一路输入电流信号，调整之后的一路输入电流信号；
其中，第一电流偏置10121的输入端与高电压信号相连，所述第一电流偏置10121的输出端分别与第一N型晶体管10122的源极和所述第一运放1011的输入端相连，所述第一N型晶体管10122的漏极连地，所述第一N型晶体管10122的栅极配置为输出所述输出电流信号。
具体的，输出电流输入第一N型晶体管10122的栅极，经第一N型晶体管10122放大，从第一N型晶体管10122输出，从第一N型晶体管10122的漏极输出接地，第一N型晶体管10122的源级接收第一电流偏置10121输出的电流信号，第一电流偏置10121同时还向第一运放1011输入该电流信号。
在本发明实施例一实施方式中，如图7所示，所述多模式射频发射机10还包括：
第二LPF104，分别配置为接收两路输入电压信号，对所述两路输入电压信号进行滤波，得到两路滤波电压信号；
两个电压电流转换器件105，分别配置为将所述两路滤波电压信号化为所述两路输入电流信号；值得说明的是，两路输入电压信号是差分信号。
其中，所述第二LPF104的输出端与对应的电压电流转换器件105的第一端相连，所述电压电流转换器件105的第二端和对应的调整器件101的两个输入端相连。第二LPF104的结构如图8所示，R1、R2、R3、R4、R5和R6是电阻，C1和C2是电容。
在本发明实施例一实施方式中，所述电压电流转换器件是可变电阻。
在本发明实施例一实施方式中，如图9所示，所述多模式射频发射机10还包括：
两个第二开关106，配置为当所述两个第二开关106同时闭合时，将所述两个第二LPF短接；
其中，每个所述第二开关106的一端与对应的第二LPF104和两个电压电流转换器件105的输入端相连；每个所述第二开关106的另一端与对应的电 压电流转换器件105的输出端相连。
值得说明的是，如果该多模式射频发射机10工作在接收电流输入信号的模式下(也就是说多模式射频发射机接收的是是输入电流时)，那么无需进行电压电流转换，直接接入调整器件，即短接第二LPF和电压电流转换器件；如果该多模式射频发射机10工作在接收电压信号输入的模式下(也就是说多模式射频发射机接收的是是输入电流时)，需要进行电压电流转换，就不能短接第二LPF和电压电流转换器件。
在本发明实施例一实施方式中，如图10所示，所述调整器件101包括：
第一P型晶体管的栅极输入第一路输入电流信号；所述第一P型晶体管MP1的源极分别和第一N型晶体管的源极、所述第一N型晶体管MN1的栅极和第二N型晶体管MN2的栅极和所述第一LPF的输入端相连；所述第一P型晶体管MP1的漏极和所述第二P型晶体管MP2的源极相连；所述第二N型晶体管MN2的源极与第三P型晶体管MP3的源级、第一电阻的第一端相连，接入第二路输入电流信号；所述第三P型晶体管MP3的栅极分别与第四P型晶体管MP4的栅极、第五P型晶体管MP5的栅极、第五P型晶体管MP5的源极和第三N型晶体管MN3的源极相连，所述第四P型晶体管MP4的源极分别与第二电阻的第一端和第四N型晶体管MP4的源极相连，所述第三N型晶体管MN3的栅极与放大器的输出端相连，所述放大器的第一输入端分别与所述第一电阻的第二端和第二电阻的第二端相连，所述放大器的第二端配置为输入稳定电流信号，所述第二P型晶体管MP2的栅极分别与所述第六P型晶体管MP6栅极、所述第六P型晶体管MP6的源极和电流偏置的输入端相连，所述第二P型晶体管MP2的源极还与所述第七P型晶体管的漏极相连，所述第七P型晶体管MP7的源极分别和第五N型晶体管MN5的源极、所述第五N型晶体管MN5的栅极和第四N型晶体管MN4的栅极和第二LPF的输入端相连；所述第一LPF的输出端输出第一路输出信号；所述第二LPF的输出端输 出第二路输出信号；所述第二P型晶体管MP2的漏极、第三P型晶体管MP3的漏极、所述第四P晶体管MP4的漏极、所述第五P型晶体管MP5的漏极和所述第六P晶体管MP6的漏极都接高电压，所述第一N型晶体管MN1的漏极、第二N型晶体管MN2的漏极、第四N型晶体管MN4的漏极、第五N型晶体管MN5的漏极和第六N型晶体管MN6的漏极都接地。
值得说明的是，1、多模式射频发射机10可以但不限于由MP1、MP7、MP2、MP4、MP3、MN5、MN1构成的结构；2、共模反馈可以但不限于由A0、MN3、MP5、MP4、MP3构成的结构；MN4、MN2为电流镜与全差分运放的输出级NMOS复用；4、图10中的全差分运放中MP3与MP4同时复用为第一电流偏置10121；5、图10中的LPF1和LPF2(即两个第一LPF)可以由全差分运放的对地补偿电容复用实现。值得说明的是，上述MP1至MP7对应第一P型晶体管至第七P型晶体管；上述MN1至MN6对应第一N型晶体管至第六N型晶体管。
在本发明实施例一实施方式中，所述第一P型晶体管至所述第七P型晶体管包括P型场效应晶体管或PNP晶体管；所述第一N型晶体管至所述第六N型晶体管包括N型场效应晶体管或NPN晶体管。本实施例对此不做限制。
实施例二
本实施例提供一种信号传输方法，如图11所示，该方法可以包括：
步骤201、接收两路输入电流。
步骤202、放大两路输入电流，得到两路输出电流信号。
步骤203、根据两路输出电流信号调整之后的输入电流信号，使得之后的两路输入电流信号输入节点的电压差与0之间的差值满足预设的电压范围。
这样一来，根据输出电流调整之后的输入电流，使得之后的输入电流能够跟随输出电流进行调整，使得两路输入电流信号输入节点的电压差趋 于0，这样，多模式射频发射机的输入阻抗也会减小，因此，减小了功率损耗。
在本发明实施例一实施方式中，采用多模式射频发射机，所述方法还包括：
步骤200a、接收两路输入电压信号；
步骤200b、将所述两路输入电压信号转化为所述两路输入电流信号。
值得说明的是，该多模式射频发射机10工作在接收电流输入信号的模式下(也就是说多模式射频发射机接收的是是输入电流时)，那么无需进行电压电流转换，直接接入调整器件，执行步骤201至203；如果该多模式射频发射机10工作在接收电压输入信号输入的模式下(也就是说多模式射频发射机接收的是是输入电流时)，需要进行电压电流转换，执行步骤200a至203。
本发明实施例还提供一种计算机存储介质，其中存储有计算机可执行指令，该计算机可执行指令配置为执行上述信号传输方法。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现 在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。
工业实用性
采用本发明实施例的多模式射频发射机及信号传输方案，通过调整器件接收两路输入电流信号，分别放大所述两路输入电流信号，得到两路输出电流信号，并根据所述两路输出电流信号调整之后的两路输入电流信号，使得所述之后的两路输入电流信号输入节点的电压差趋于0；所述调整器件的两个输入端分别用于接收所述两路输入电流信号，所述调整器件的两个输出端用于输出两路输出电流信号。这样一来，根据放大电流调整之后的输入电流，使得之后的输入电流能够跟随放大电流进行调整，使得两路输入电流信号输入节点的电压差趋于0，这样，多模式射频发射机的输入阻抗也会减小，因此，减小了功率损耗。

Claims (12)

  1. 一种多模式射频发射机，包括：
    调整器件，配置为接收两路输入电流信号，分别放大所述两路输入电流信号，得到两路输出电流信号，并根据所述两路输出电流信号调整之后的两路输入电流信号，使得所述之后的两路输入电流信号输入节点的电压差与0之间的差值满足预设的电压范围；
    所述调整器件的两个输入端分别配置为接收所述两路输入电流信号，所述调整器件的两个输出端配置为输出两路输出电流信号。
  2. 根据权利要求1所述的多模式射频发射机，其中，所述多模式射频发射机还包括：
    两个第一低通滤波器LPF，分别配置为过滤一路输出电流信号，得到一路输出信号；
    其中，所述调整器件的两个输出端分别与所述两个第一LPF的输入端连接，所述两个第一LPF的输出端分别配置为输出两路输出信号。
  3. 根据权利要求1所述的多模式射频发射机，其中，所述多模式射频发射机还包括：
    两个第一开关，配置为当所述两个第一开关闭合时，短接所述两个第一LPF；其中，每个第一开关的两端分别与对应的第一LPF的两端相连。
  4. 根据权利要求1或2所述的多模式射频发射机，其中，所述调整器件包括：
    第一运放，配置为放大所述两路输入电流，得到所述两路输出电流信号；
    两个共源放大电路，分别配置为根据其中一路输出电流和对应的输出电流信号，调整之后的输入电流信号；
    其中，所述第一运放的输出级与所述共源放大电路复用，构成复合结 构，形成一种低输入阻抗的电流放大电路；所述第一运放的两个输入端分别配置为接收所述两路输入电流信号中的一路，所述第一运放的两个输出端分别与所述两个共源放大电路的输入端相连，所述两个共源放大电路的输出端配置为输出所述输出电流信号。
  5. 根据权利要求4所述的多模式射频发射机，其中，所述共源放大电路包括：
    第一电流偏置，配置为输出一个稳定电流信号；
    第一N型晶体管，配置为将所述输出电流信号中对应的输出电流信号进行放大，并根据放大后的输出电流信号、所述稳定电流信号和所述一路输入电流信号，调整之后的一路输入电流信号；
    其中，第一电流偏置的输入端与高电压信号相连，所述第一电流偏置的输出端分别与第一N型晶体管的源极和所述第一运放的输入端相连，所述第一N型晶体管的漏极连地，所述第一N型晶体管的栅极配置为输出所述输出电流信号。
  6. 根据权利要求5所述的多模式射频发射机，其中，所述多模式射频发射机还包括：
    第二LPF，分别配置为接收两路输入电压信号，对所述两路输入电压信号进行滤波，得到两路滤波电压信号；
    两个电压电流转换器件，分别配置为将所述两路滤波电压信号转化为所述两路输入电流信号；
    其中，所述第二LPF的输出端与对应的电压电流转换器件的第一端相连，所述电压电流转换器件的第二端和对应的调整器件的两个输入端相连。
  7. 根据权利要求6所述的多模式射频发射机，其中，所述多模式射频发射机还包括：
    两个第二开关，配置为当所述两个第二开关同时闭合时，将所述两个 第二LPF和所述两个电压电流转换器件短接；
    其中，每个所述第二开关的一端与对应的第二LPF的输入端相连；每个所述第二开关的另一端与对应的电压电流转换器的输出端相连。
  8. 根据权利要求1所述的多模式射频发射机，其中，所述调整器件包括：
    第一P型晶体管的栅极输入第一路输入电流信号；所述第一P型晶体管的源极分别和第一N型晶体管的源极、所述第一N型晶体管的栅极和第二N型晶体管的栅极和所述第一LPF的输入端相连；所述第一P型晶体管的漏极和所述第二P型晶体管的源极相连；所述第二N型晶体管的源极与第三P型晶体管的源级、第一电阻的第一端相连，接入第二路输入电流信号；所述第三P型晶体管的栅极分别与第四P型晶体管的栅极、第五P型晶体管的栅极、第五P型晶体管的源极和第三N型晶体管的源极相连，所述第四P型晶体管的源极分别与第二电阻的第一端和第四N型晶体管的源极相连，所述第三N型晶体管的栅极与放大器的输出端相连，所述放大器的第一输入端分别与所述第一电阻的第二端和第二电阻的第二端相连，所述放大器的第二端配置为输入所述稳定电流信号，所述第二P型晶体管的栅极分别与所述第六P型晶体管栅极、所述第六P型晶体管的源极和电流偏置的输入端相连，所述第二P型晶体管的源极还与所述第七P型晶体管的漏极相连，所述第七P型晶体管的源极分别和第五N型晶体管的源极、所述第五N型晶体管的栅极和第四N型晶体管的栅极和第二LPF的输入端相连；所述第一LPF的输出端输出第一路输出信号；所述第二LPF的输出端输出第二路输出信号；所述第二p型晶体管的漏极、第三P型晶体管的漏极、所述第四p晶体管的漏极、所述第五P型晶体管的漏极和所述第六p晶体管的漏极都接高电压，所述第一N型晶体管的漏极、第二N型晶体管的漏极、第四N型晶体管的漏极、第五N型晶体管的漏极和第六N型晶体管的漏极都接地。
  9. 根据权利要求8所述的多模式射频发射机，其中，所述第一P型晶体管至所述第七P型晶体管包括P型场效应晶体管或PNP晶体管；所述第一N型晶体管至所述第六N型晶体管包括N型场效应晶体管或NPN晶体管。
  10. 一种信号传输方法，包括：
    接收两路输入电流信号；
    放大所述两路输入电流，得到所述两路输出电流信号；
    根据所述两路输出电流信号调整之后的输入电流信号，使得所述之后的两路输入电流信号输入节点的电压差与0之间的差值满足预设的电压范围。
  11. 根据权利要求10所述的方法，其中，所述放大所述两路输入电流信号，得到所述两路输出电流信号之前，所述方法还包括：
    接收两路输入电压信号；
    将所述两路输入电压信号转化为所述两路输入电流信号。
  12. 一种计算机存储介质，存储有计算机可执行指令，该计算机可执行指令配置为执行上述权利要求10或11所述的信号传输方法。
PCT/CN2017/077389 2016-06-21 2017-03-20 一种多模式射频发射机及信号传输方法、计算机存储介质 Ceased WO2017219720A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610451307.2A CN107528600B (zh) 2016-06-21 2016-06-21 一种多模式射频发射机及信号传输方法
CN201610451307.2 2016-06-21

Publications (1)

Publication Number Publication Date
WO2017219720A1 true WO2017219720A1 (zh) 2017-12-28

Family

ID=60734916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/077389 Ceased WO2017219720A1 (zh) 2016-06-21 2017-03-20 一种多模式射频发射机及信号传输方法、计算机存储介质

Country Status (2)

Country Link
CN (1) CN107528600B (zh)
WO (1) WO2017219720A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643173A (en) * 1970-05-18 1972-02-15 Gen Electric Tuneable microelectronic active band-pass filter
CN104597955A (zh) * 2015-01-08 2015-05-06 聚光科技(杭州)股份有限公司 双路射频电源的调整装置及方法
CN204462919U (zh) * 2015-01-08 2015-07-08 聚光科技(杭州)股份有限公司 双路射频电源的调整装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643173A (en) * 1970-05-18 1972-02-15 Gen Electric Tuneable microelectronic active band-pass filter
CN104597955A (zh) * 2015-01-08 2015-05-06 聚光科技(杭州)股份有限公司 双路射频电源的调整装置及方法
CN204462919U (zh) * 2015-01-08 2015-07-08 聚光科技(杭州)股份有限公司 双路射频电源的调整装置

Also Published As

Publication number Publication date
CN107528600B (zh) 2020-06-16
CN107528600A (zh) 2017-12-29

Similar Documents

Publication Publication Date Title
US10193506B2 (en) Methods and circuits to reduce pop noise in an audio device
US7973587B2 (en) Transconductor having high linearity and programmable gain and mixer using the same
KR102415919B1 (ko) 공통 모드 피드백 제어 회로를 갖는 반전 의사 완전 차동 증폭기
US8035443B2 (en) Amplifier with gain expansion stage
US20140197887A1 (en) Telescopic OP-AMP With Slew Rate Control
CN100549898C (zh) 利用双向非对称缓冲器结构提高性能的ldo电路
US9685914B2 (en) Amplifier circuit
US8816773B2 (en) Offset current trim circuit
CN103329429A (zh) 用于多级放大器的米勒补偿的装置和方法
JPH0786850A (ja) 完全差動演算増幅器、および差動演算増幅器における同相再構築の方法
US9407221B2 (en) Differential amplifier circuit
CN102497216A (zh) 一种可配置的接收信号强度指示电路
US8841970B2 (en) Low GM transconductor
CN116032283B (zh) 一种带dcoc校准的可编程增益放大电路及实现方法
US9503053B1 (en) Active balun for wideband applications
US10116267B2 (en) Single-ended amplifier circuit with improved chopper configuration
US9571052B1 (en) Transconductance (gm) boosting transistor arrangement
US9214904B2 (en) Differential power amplifier using mode injection
JP2007174029A (ja) 利得可変回路及びそれを用いた自動利得制御増幅器
KR100682056B1 (ko) 버퍼 증폭기
US7202746B1 (en) Multiple-stage operational amplifier and methods and systems utilizing the same
WO2017219720A1 (zh) 一种多模式射频发射机及信号传输方法、计算机存储介质
JPH0730342A (ja) 演算増幅回路
WO2007105282A1 (ja) ゲイン可変増幅器
CN101174821B (zh) 一种与温度及电源电压无关的可调有源电感

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17814459

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17814459

Country of ref document: EP

Kind code of ref document: A1