CN207354221U - Embedded multiplier and operational amplifier - Google Patents
Embedded multiplier and operational amplifier Download PDFInfo
- Publication number
- CN207354221U CN207354221U CN201721065918.XU CN201721065918U CN207354221U CN 207354221 U CN207354221 U CN 207354221U CN 201721065918 U CN201721065918 U CN 201721065918U CN 207354221 U CN207354221 U CN 207354221U
- Authority
- CN
- China
- Prior art keywords
- amplifier
- current
- output terminal
- switch pipe
- conversion
- 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 embodiment provides a kind of embedded multiplier and operational amplifier.Wherein, operational amplifier includes：First order amplifier and second level amplifier, embedded multiplier include：Current conversion module and Current amplifier module.The input terminal of current conversion module is connected with the output terminal of second level amplifier, the output terminal of current conversion module is connected with the input terminal of Current amplifier module and the output terminal of first order amplifier respectively, and the output terminal of Current amplifier module is connected with the input terminal of second level amplifier.The current signal that embedded multiplier is exported by gathering and amplifying second level amplifier, to realize the power back-off to operational amplifier, extra voltage margin is not required in it, it effectively prevent the static power of consumption operational amplifier, and then avoid operational amplifier and produce offset voltage, therefore effectively increase operational amplifier work.
Description
Technical field
Electron electric power equipment technical field is the utility model is related to, in particular to a kind of embedded multiplier and fortune
Calculate amplifier.
Background technology
With the development of science and technology and improve, the electronic equipment of electron electric power technical field obtained significant progress into
Step.
Operational amplifier is widely applied in various electronic circuits, to realize the amplification to signal in circuit.Mesh
Before, it can ensure the stability of operational amplifier work using power back-off, for example, classical miller compensation.But adopted at present
Extra voltage margin is needed with power compensation way, and it can also consume the static power of operational amplifier so that computing is put
Big device produces offset voltage, and then still influences whether the stability of operational amplifier work under specific circumstances.
Therefore, how effectively to ensure that the stability of operational amplifier work is current industry a great problem.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of embedded multiplier and operational amplifier, with effective
Improve drawbacks described above.
The technical solution that the embodiment of the utility model solves above-mentioned technical problem is as follows：
In a first aspect, the utility model embodiment provides a kind of embedded multiplier, it is described applied to operational amplifier
Operational amplifier includes：First order amplifier and second level amplifier, the embedded multiplier include：Current conversion module and
Current amplifier module.The input terminal of the current conversion module is connected with the output terminal of second level amplifier, the electric current conversion
The output terminal of module is connected with the input terminal of the Current amplifier module and the output terminal of the first order amplifier respectively, described
The output terminal of Current amplifier module is connected with the input terminal of the second level amplifier.The current conversion module, for by institute
The current signal conversion for stating second level amplifier output is enlarged into compensating current signal, and the compensating current signal is exported to institute
State Current amplifier module.The Current amplifier module, for obtaining the current signal of the first order amplifier output, according to institute
State compensating current signal to compensate and amplify the current signal, afterwards export the current signal to second level amplifier.
Further, the current conversion module includes：IV conversion circuit and VI conversion circuits.The IV conversion circuit
Input terminal is connected with the output terminal of the second level amplifier, the output terminal of the IV conversion circuit and the VI conversion circuits
Input terminal connects, and the output terminal of the VI conversion circuits is put with the input terminal of the Current amplifier module and the first order respectively
The output terminal connection of big device.The IV conversion circuit, for the current signal conversion for exporting the second level amplifier
Compensation voltage signal is enlarged into, the compensation voltage signal is exported to the VI conversion circuits.The VI conversion circuits, are used for
Compensation voltage signal conversion is enlarged into the compensating current signal, the compensating current signal is exported to the electric current
Amplification module.
Further, the IV conversion circuit includes：First resistor, the first power supply and first switch pipe.First electricity
One end of resistance is connected with the output terminal of the second level amplifier and the control terminal of the first switch pipe respectively, and described first opens
Close the other end of the output terminal and first power supply of pipe with the first resistor to be connected, the ground terminal of the first switch pipe
Ground connection, the output terminal of the first switch pipe are connected with the input terminal of the VI conversion circuits.
Further, the IV conversion circuit further includes：First capacitance, one end and the second level of first capacitance
The output terminal connection of amplifier, the other end of first capacitance are connected with one end of the first resistor.
Further, the first switch pipe is the first field-effect tube, and the grid of first field-effect tube is described the
The control terminal of one switching tube, the source electrode of first field-effect tube are the ground terminal of the first switch pipe, first effect
Should pipe drain electrode for the first switch pipe output terminal.
Further, first power supply is the first current source.
Further, the VI conversion circuits include：Second source and second switch pipe.The control of the second switch pipe
End is connected with the output terminal of the IV conversion circuit, and the output terminal of the second switch pipe is connected with the second source, described
The output terminal of second switch pipe connects with the input terminal of the Current amplifier module and the output terminal of the first order amplifier respectively
Connect.
Further, the second switch pipe is the second field-effect tube, and the grid of second field-effect tube is described the
The control terminal of two switching tubes, the source electrode of second field-effect tube are the ground terminal of the second switch pipe, second effect
Should pipe drain electrode for the second switch pipe output terminal.
Further, the second source is the second current source.
Second aspect, the utility model embodiment provide a kind of operational amplifier, and the operational amplifier includes：First
Level amplifier, second level amplifier and the embedded multiplier, the embedded multiplier are put with the first order respectively
The big output terminal of device, the input terminal of the second level amplifier are connected with the output terminal of the second level amplifier.
The beneficial effect of the utility model embodiment is：
The current signal that current conversion module is exported by gathering second level amplifier, and be converted and be enlarged into compensation electricity
Flow signal.And then Current amplifier module then compensates according to the compensating current signal and amplifies the electric current letter of first order amplifier output
Number.The current signal that embedded multiplier is exported by gathering and amplifying second level amplifier, to realize to operational amplifier
Power back-off, extra voltage margin is not required in it, effectively prevent the static power of consumption operational amplifier, and then avoids
Operational amplifier produces offset voltage, therefore effectively increases the stability of operational amplifier work.
Other feature and advantage of the utility model will illustrate in subsequent specification, also, partly from specification
Become apparent, or understood by implementing the utility model embodiment.The purpose of this utility model and other advantages can
Realize and obtain by specifically noted structure in the specification, claims and attached drawing write.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, drawings in the following description are only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.By the way that shown in attached drawing, the above and other purpose, feature and advantage of the utility model will more
Clearly.Identical reference numeral indicates identical part in whole attached drawings.Do not painted by actual size equal proportion scaling deliberately
Attached drawing processed, it is preferred that emphasis is show the purport of the utility model.
Fig. 1 shows a kind of structure diagram for operational amplifier that the utility model first embodiment provides；
Fig. 2 shows a kind of structure diagram for embedded multiplier that the utility model second embodiment provides；
Fig. 3 shows the electricity of current conversion module in a kind of embedded multiplier that the utility model second embodiment provides
Lu Tu；
Fig. 4 shows the small-signal of current conversion module in a kind of protective device that the utility model second embodiment provides
Model equivalent circuit diagram.
Icon：10- operational amplifiers；11- first order amplifiers；12- second level amplifier；The embedded multipliers of 100-；
110- current conversion modules；111-IV conversion circuits；112-VI conversion circuits；120- Current amplifier modules.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the utility model, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that referring to
Show or imply relative importance.And in the description of the utility model, it is also necessary to explanation, unless otherwise clear and definite regulation and
Limiting, term " connection ", " coupling " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or
It is integrally connected；Can mechanically connect or be electrically connected；It can be directly connected, can also be by between intermediary
Connect connected, can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition
Concrete meaning of the above-mentioned term in the utility model.
First embodiment
Referring to Fig. 1, the utility model first embodiment provides a kind of operational amplifier 10, which wraps
Include：First order amplifier 11, second level amplifier 12 and embedded multiplier 100.Wherein, embedded multiplier 100 respectively with
The output terminal of first order amplifier 11, the input terminal of second level amplifier 12 are connected with the output terminal of second level amplifier 12.
In the present embodiment, embedded multiplier 100 obtains the current signal that second level amplifier 12 is exported, and by the electricity
Stream signal passes sequentially through I-V conversions and V-I conversions, and amplification is converted to compensating current signal.And then embedded multiplier 100 obtains
During the current signal exported to first order amplifier 11, then formed according to the compensating current signal to the power of current signal benefit
Repay, and the current signal after compensation is exported to second level amplifier 12, exported after being amplified so as to second level amplifier 12.
It is understood that by the way that embedded multiplier 100 forms the compensation adjustment of reaction type, to realize the work(to operational amplifier 10
When rate compensates, extra voltage margin is not required in it, effectively prevent the static power of consumption operational amplifier 10, and then avoids
Operational amplifier 10 produces offset voltage, therefore effectively increases the stability of the work of operational amplifier 10.
Second embodiment
Referring to Fig. 2, the utility model second embodiment provides a kind of embedded multiplier 100, the embedded multiplication
Device 100 includes：Current conversion module 110 and Current amplifier module 120.Wherein, the input terminal of current conversion module 110 and second
The output terminal connection of level amplifier 12, the output terminal of current conversion module 110 respectively with the input terminal of Current amplifier module 120 and
The output terminal connection of first order amplifier 11, the output terminal of Current amplifier module 120 connect with the input terminal of second level amplifier 12
Connect.
Current conversion module 110, will for the current signal that second level amplifier 12 exports to be changed by I-V and V-I
Current signal conversion is enlarged into compensating current signal, and compensating current signal is exported to Current amplifier module 120.
Current amplifier module 120, for obtaining the current signal of the output of first order amplifier 11, and it is electric according to compensation is obtained
Signal and the amplifying circuit of itself are flowed, current signal compensate and amplified, the current signal that amplifies will be compensated afterwards and exported to the
Two-stage amplifier 12.
Referring to Fig. 2, current conversion module 110 includes：IV conversion circuit 111 and VI conversion circuits 112.Wherein, IV turns
The input terminal for changing circuit 111 is connected with the output terminal of second level amplifier 12, output terminal and the VI conversion electricity of IV conversion circuit 111
The input terminal connection on road 112, the output terminals of VI conversion circuits 112 input terminal and the first order with Current amplifier module 120 respectively
The output terminal connection of amplifier 11.
As shown in Figures 2 and 3, IV conversion circuit 111 is used to put the current signal conversion that second level amplifier 12 exports
Greatly compensation voltage signal, then compensation voltage signal is exported to the VI conversion circuits 112.
In the IV conversion circuit 111 of the present embodiment, which includes：First capacitance C1, first resistor
R1, the first power supply Is1 and first switch pipe MOS1.Wherein, the first power supply Is1 is the first current source Is1, first switch pipe MOS1
For the first field-effect tube MOS1.The grid of first field-effect tube MOS1 be first switch pipe MOS1 control terminal, the first field-effect
The source electrode of pipe MOS1 is the ground terminal of first switch pipe MOS1, and the drain electrode of the first field-effect tube MOS1 is first switch pipe MOS1's
Output terminal.
Specifically, one end of the first capacitance C1 is the input terminal of IV conversion circuit 111, i.e., also it is current conversion module 110
Input terminal, it is equipped with the connectivity port A1 that is connected with the output terminal of second level amplifier 12.The other end of first capacitance C1 with
One end connection of first resistor R1.One end of first resistor R1 is connected with the control terminal of first switch pipe MOS1, first switch pipe
The other end of the output terminal of MOS1 and the first power supply Is1 with first resistor R1 is connected, the ground connection termination of first switch pipe MOS1
Ground, the output terminal of first switch pipe MOS1 are connected with the input terminal of VI conversion circuits 112.
IV conversion circuit 111 by above-mentioned connection relation, believe by the electric current that the first capacitance C1 exports second level amplifier 12
Number be converted to voltage signal and be loaded onto the control terminal of first switch pipe MOS1.First switch pipe MOS1 is according to the first power supply Is1
The electric current of input, is on magnifying state.And then voltage signal is enlarged into compensation voltage signal by first switch pipe MOS1, and
It is loaded onto the input terminal of VI conversion circuits 112.
As shown in Figures 2 and 3, VI conversion circuits 112 are used to compensation voltage signal conversion being enlarged into compensating current signal,
Compensating current signal is exported to Current amplifier module 120.
In the VI conversion circuits 112 of the present embodiment, which includes：Second source Is2 and second switch
Pipe MOS2.Wherein, second source Is2 is the second current source Is2, and second switch pipe MOS2 is the second field-effect tube MOS2.Second
The grid of field-effect tube MOS2 is the control terminal of second switch pipe MOS2, and the source electrode of the second field-effect tube MOS2 is second switch pipe
The ground terminal of MOS2, the drain electrode of the second field-effect tube MOS2 are the output terminal of second switch pipe MOS2.
Specifically, the control terminal of second switch pipe MOS2 is connected with the output terminal of IV conversion circuit 111, second switch pipe
The output terminal of MOS2 is connected with second source.Output terminal of the output terminal of second switch pipe MOS2 also as VI conversion circuits 112,
Also it is the output terminal of current conversion module 110, its input terminal and the first order for being equipped with respectively with Current amplifier module 120 amplify
The connectivity port A2 of the output terminal connection of device 11.
VI conversion circuits 112 obtain compensation voltage signal by above-mentioned connection relation, the control terminal of second switch pipe MOS2.
The electric current that second switch pipe MOS2 is inputted according to second source Is2, is also at conducting magnifying state, and then second switch pipe MOS2
Compensation voltage signal conversion is enlarged into compensating current signal, and is exported to the input terminal of Current amplifier module 120.
There is amplifying circuit referring to Fig. 2, Current amplifier module 120 can be IC chip, in it.Current amplifier
Module 120 obtains the current signal of the output of first order amplifier 11.In addition, Current amplifier module 120 also obtains electric current modulus of conversion
The compensating current signal that block 110 exports.Compensating current signal and current signal are input to itself by Current amplifier module 120
In amplifying circuit, so that compensating current signal and current signal are superimposed.Realize and carry out current signal by amplifying circuit
While amplification output, must compensating current signal form power back-off to current signal.
Referring to Fig. 4, Fig. 4 is the equivalent circuit diagram of 110 small-signal model of current conversion module.Wherein, Rb represents first
Resistance R1, Cb represent first capacitance C1, Gmb1 represent the mutual conductance of first switch pipe ,-kGmb1 represent second switch pipe mutual conductance,
Cgs1 represents that the parasitic capacitance of first switch pipe control terminal, Gob1 represent the parasitic capacitance of first switch pipe output terminal, Cpb1 tables
Show that the output capacitance of second switch pipe output terminal, Gob2 represent that the parasitic capacitance of second switch pipe output terminal, Cpb1 represent second
The output capacitance of switching tube output terminal.
When in Cb>>Cgs1, Cpb1 and (1/Gob1)>>Rb>In the case of (1/Gmb1), the transmission equation of CM is about：
Wherein, M=k (Gmb1*Rb-1) represents that multiplication factor, a0 represent that Gmb1/Cb, a1 represent 1/ (Rb*Cpb1).By electricity
The equivalent bandwidth BCM of stream modular converter 110 is defined as：Frequency during 45 ° of its phase potential drop, in addition, for positive electric current modulus of conversion
Block 110 drops to 45 ° from 90 °, drops to -135 ° for negative C current conversion modules 110 from -90 °.Therefore, BCM can be by
(9) formula determines：
Solving (9) Shi Ke get, BCM is：
It can be drawn from 10 formulas, no matter limit is two real numbers or two plural numbers, to BCM from its limit type
Influence.Since effective capacitance is a constraint fixed, BCM can be increased by increasing the value of a0, i.e., by reducing Cb
Value while increase Rb to make full use of parasitic capacitance Cpb.For example, when local loop stability requirement is greater than or equal to for a1
2a0, then BCM be greater than or equal to 0.732a0, i.e. 0.732=Gmb1/Cb.
In addition, on the Power budgets to current conversion module 110, in the present embodiment, bigoted electric current can be by all
The mutual conductance of transistor is accurately drawn.For example, total mutual conductance of current conversion module 110 is 2Gmb1. then current conversion module 110
Bandwidth B CM-1 can be as follows：
It can be obtained from 11 formulas, the current conversion module 110 of the present embodiment is more preferable on frequency performance, because M must necessarily be located
More than 1 with realize capacitance amplify.
In summary：The utility model embodiment provides a kind of embedded multiplier and operational amplifier.Wherein, computing
Amplifier includes：First order amplifier and second level amplifier, embedded multiplier include：Current conversion module and Current amplifier
Module.The input terminal of current conversion module is connected with the output terminal of second level amplifier, the output terminal difference of current conversion module
It is connected with the input terminal of Current amplifier module and the output terminal of first order amplifier, the output terminal of Current amplifier module and the second level
The input terminal connection of amplifier.
The current signal that current conversion module is exported by gathering second level amplifier, and be converted and be enlarged into compensation electricity
Flow signal.And then Current amplifier module then compensates according to the compensating current signal and amplifies the electric current letter of first order amplifier output
Number.The current signal that embedded multiplier is exported by gathering and amplifying second level amplifier, to realize to operational amplifier
Power back-off, extra voltage margin is not required in it, effectively prevent the static power of consumption operational amplifier, and then avoids
Operational amplifier produces offset voltage, therefore effectively increases the stability of operational amplifier work.
It these are only the preferred embodiment of the utility model, be not intended to limit the present invention, for this area
Technical staff for, various modifications and changes may be made to the present invention.Where within the spirit and principles of the present invention,
Any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of embedded multiplier, it is characterised in that applied to operational amplifier, the operational amplifier includes：The first order
Amplifier and second level amplifier, the embedded multiplier include：Current conversion module and Current amplifier module；The electric current
The input terminal of modular converter is connected with the output terminal of second level amplifier, the output terminal of the current conversion module respectively with it is described
The input terminal of Current amplifier module is connected with the output terminal of the first order amplifier, the output terminal of the Current amplifier module with
The input terminal connection of the second level amplifier；
The current conversion module, the current signal conversion for the second level amplifier to be exported are enlarged into compensation electric current letter
Number, the compensating current signal is exported to the Current amplifier module；
The Current amplifier module, for obtaining the current signal of the first order amplifier output, according to the compensation electric current
Signal compensation simultaneously amplifies the current signal, afterwards exports the current signal to second level amplifier.
2. embedded multiplier according to claim 1, it is characterised in that the current conversion module includes：IV is changed
Circuit and VI conversion circuits, the input terminal of the IV conversion circuit are connected with the output terminal of the second level amplifier, the IV
The output terminal of conversion circuit is connected with the input terminal of the VI conversion circuits, the output terminals of the VI conversion circuits respectively with it is described
The input terminal of Current amplifier module is connected with the output terminal of the first order amplifier；
The IV conversion circuit, the current signal conversion for the second level amplifier to be exported are enlarged into offset voltage
Signal, the compensation voltage signal is exported to the VI conversion circuits；
The VI conversion circuits, for compensation voltage signal conversion to be enlarged into the compensating current signal, by the benefit
Current signal is repaid to export to the Current amplifier module.
3. embedded multiplier according to claim 2, it is characterised in that the IV conversion circuit includes：First resistor,
First power supply and first switch pipe, one end of the first resistor respectively with the output terminal of the second level amplifier and described
The control terminal connection of one switching tube, the output terminal of the first switch pipe and first power supply are another with the first resistor
One end connects, the ground terminal ground connection of the first switch pipe, the output terminal of the first switch pipe and the VI conversion circuits
Input terminal connects.
4. embedded multiplier according to claim 3, it is characterised in that the IV conversion circuit further includes：First electricity
Hold, one end of first capacitance is connected with the output terminal of the second level amplifier, the other end of first capacitance and institute
State one end connection of first resistor.
5. embedded multiplier according to claim 3, it is characterised in that the first switch pipe is the first field-effect
Pipe, the grid of first field-effect tube are the control terminal of the first switch pipe, and the source electrode of first field-effect tube is institute
The ground terminal of first switch pipe is stated, the drain electrode of first field-effect tube is the output terminal of the first switch pipe.
6. embedded multiplier according to claim 3, it is characterised in that first power supply is the first current source.
7. embedded multiplier according to claim 2, it is characterised in that the VI conversion circuits include：Second source
With second switch pipe, the control terminal of the second switch pipe is connected with the output terminal of the IV conversion circuit, the second switch
The output terminal of pipe is connected with the second source, and the output terminal of the second switch pipe is defeated with the Current amplifier module respectively
Enter end to connect with the output terminal of the first order amplifier.
8. embedded multiplier according to claim 7, it is characterised in that the second switch pipe is the second field-effect
Pipe, the grid of second field-effect tube are the control terminal of the second switch pipe, and the source electrode of second field-effect tube is institute
The ground terminal of second switch pipe is stated, the drain electrode of second field-effect tube is the output terminal of the second switch pipe.
9. embedded multiplier according to claim 7, it is characterised in that the second source is the second current source.
10. a kind of operational amplifier, it is characterised in that the operational amplifier includes：First order amplifier, second level amplifier
With the embedded multiplier as described in claim 1-9 any one, the embedded multiplier is put with the first order respectively
The big output terminal of device, the input terminal of the second level amplifier are connected with the output terminal of the second level amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721065918.XU CN207354221U (en) | 2017-08-23 | 2017-08-23 | Embedded multiplier and operational amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721065918.XU CN207354221U (en) | 2017-08-23 | 2017-08-23 | Embedded multiplier and operational amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207354221U true CN207354221U (en) | 2018-05-11 |
Family
ID=62412804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721065918.XU Active CN207354221U (en) | 2017-08-23 | 2017-08-23 | Embedded multiplier and operational amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207354221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107547052A (en) * | 2017-08-23 | 2018-01-05 | 刘欣亮 | Embedded multiplier and operational amplifier |
-
2017
- 2017-08-23 CN CN201721065918.XU patent/CN207354221U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107547052A (en) * | 2017-08-23 | 2018-01-05 | 刘欣亮 | Embedded multiplier and operational amplifier |
| CN107547052B (en) * | 2017-08-23 | 2024-04-19 | 刘欣亮 | Embedded multiplier and operational amplifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107425814A (en) | A kind of broadband Doherty power amplifier based on compensation parasitic capacitance | |
| CN103178852A (en) | High-speed sampling front-end circuit | |
| CN101893908A (en) | Filling in/pulling out current rapid response linear voltage regulator and regulating method | |
| CN103354419B (en) | Based on fully integrated compensating network on the sheet of constant transconductance amplifier and capacitor multiflier | |
| CN106487344A (en) | A kind of CMOS technology 2400MHz linear power amplifier | |
| CN110113036A (en) | A kind of radio-frequency switch circuit structure of High Linear low harmony wave | |
| CN208506629U (en) | A kind of power supply circuit based on far-end feedback | |
| CN207354221U (en) | Embedded multiplier and operational amplifier | |
| CN109871059A (en) | A kind of ultra low voltage LDO circuit | |
| CN206627849U (en) | The CMOS low pressure difference linear voltage regulators and electronic equipment of dynamic miller compensation | |
| CN103592989A (en) | Low quiescent dissipation rapid transient response non-output capacitance LDO (low drop out regulator) circuit | |
| CN107565928A (en) | A kind of capacity multiplier of high multiplication constant | |
| CN107547052A (en) | Embedded multiplier and operational amplifier | |
| CN107402593B (en) | It is a kind of based on silicon hole array without capacitance LDO circuit outside piece | |
| CN106774599A (en) | A kind of voltage modulator circuit of high PSRR | |
| CN104320105B (en) | A kind of mixed mode capacity multiplier circuit | |
| CN104380598B (en) | Power amplification circuit | |
| CN107147365A (en) | Class-E power amplifier | |
| CN206505339U (en) | A kind of reference circuit of low compensating electric capacity value | |
| CN202771296U (en) | Low static power consumption rapid transient response no- output capacitance low dropout regulator (LDO) circuit | |
| CN109309481A (en) | The three-stage operational amplifier eliminated based on damping factor frequency compensation and DC maladjustment | |
| CN108762360A (en) | A kind of power transfer circuitry | |
| Madureira et al. | Design and measurement of a 2.5 GHz switched-mode CMOS power amplifier with reliability enhancement | |
| CN209088898U (en) | Power amplification circuit with mismatch defencive function | |
| CN107168439A (en) | A kind of AB class driving stage circuit designs applied to Low dropout regulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |