CN108109654A - A kind of programmable analog circuit based on memristor - Google Patents
A kind of programmable analog circuit based on memristor Download PDFInfo
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- CN108109654A CN108109654A CN201611054388.9A CN201611054388A CN108109654A CN 108109654 A CN108109654 A CN 108109654A CN 201611054388 A CN201611054388 A CN 201611054388A CN 108109654 A CN108109654 A CN 108109654A
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- Prior art keywords
- memristor
- circuit
- programmable
- programmable analog
- analog circuit
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0009—RRAM elements whose operation depends upon chemical change
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Abstract
A kind of programmable analog circuit based on memristor, suitable for electronic circuit field.Programmable analog circuit is adjusted circuit and is formed by programmable doube bridge circuit, programmable gain amplifier, waveform generator, amplitude.With natural memory function and good switch performance, circuit structure is compact, the operation is stable, and adaptability is good, improves work efficiency, low in energy consumption, and with good anti-interference and reliability.
Description
Technical field
The present invention relates to a kind of programmable analog circuit based on memristor, suitable for electronic circuit field.
Background technology
Memristor has unique switch conversion mechanism and natural memory function, if the high impedance status memristor
Logic " 0 " is defined as, low impedance state is defined as logic+1, then memristor can just store binary number in the form of impedance
According to.Therefore, the most important application of memristor at present is in storage medium manufacturing field.
The appearance of memristor enriches current electronic component type existing on the market, and the particularity of memristor in itself
Matter provides a kind of brand-new thinking for memristor in the application of various electronic circuit design fields.
Memristor is a great discovery in circuitry development history, can be mutually equal to the triode invented before 100 years
U.S., and memristor is also considered as the 4th kind of basic circuit elements after resistance, capacitance and inductance.Memristor is most prominent
Feature is its natural nonvolatile memory function and good switch performance, in non-volatile memory technologies, restructural letter
The fields such as number process circuit and artificial neural network have huge application potential.With the hair that deepens continuously of memristor technology
Exhibition, memristor are not limited solely to binary system operational mode system, and memristor can equally play huge in Analog Circuit Design
Big effect.These physical mechanisms make it possible that future commercially produces memristor, and memristor is in applications of electronic circuitry field
It will play a great role.
The content of the invention
The present invention provides a kind of programmable analog circuit based on memristor, has natural memory function and good opens
Performance is closed, circuit structure is compact, the operation is stable, and adaptability is good, improves work efficiency, low in energy consumption, and with good anti-dry
Immunity and reliability.
The technical solution adopted in the present invention is：
Occurred based on the programmable analog circuit of memristor by programmable doube bridge circuit, programmable gain amplifier, waveform signal
Device, amplitude adjust circuit composition.
The programmable doube bridge circuit including two input pulses signal source Vl, V2, can export positive voltage pulse.M1、
M4 is P-channel enhancement type FET, and low level is effective, for the break-make of control loop.The operating voltage of circuit is 5V.Work as V1
It opens (input low level), when V2 closes (input high level), P-channel field-effect transistor (PEFT) pipe Ml and M2 conducting, M3 are closed, and electric current passes through
R3 flows to cathode (minus) from the anode (plus) of memristor, and the resistance value of memristor reduces at this time.When Vl is closed, and V2 is opened,
M3 and M4 conductings, Ml and M2 are closed, and electric current flows to anode (plus) by R4 from the cathode (minus) of memristor.
For the programmable gain amplifier as common same phase operational amplifier, input signal Y in (t) is loaded into fortune
Calculate the positive input terminal y+ of amplifier；Negative input end domestic animal is connected to two resistance, is feedback resistance and memristor respectively.Memristor can
Programmed circuit can be divided into two working stages.In the programming operation stage, adjusting control signal source VP makes field-effect tube M1 or M2
Conducting, in pulse signal loading to memristor, is programmed the state of memristor, the resistance value of memristor can be [[Ron,
Roff] in the range of any value.After memristor is adjusted to the state needed, field-effect tube M1 and M2 are closed.
The square-wave signal generator mainly includes the hysteresis voltage comparator of anti-phase input and RC integrator two parts
Circuit.Voltage comparator has switching function, the low and high level output state of control circuit.RC circuits are not only signal generator
Delay link, while be also signal generator feedback element.The signal output part of voltage comparator especially adds one
Amplitude limit link is mainly made of a current-limiting resistance and two back-to-back voltage-stabiliser tubes.The output voltage of signal generator circuit
It is Symmetrical, amplitude depends on the voltage stabilizing value of voltage-stabiliser tube.The output frequency of signal generator can pass through potentiometer R5
Or R6 is adjusted, but suitable self-excited oscillatory frequency in order to obtain, generally requires discrete large bulk capacitance element in circuit, no
Only energy consumption is big, nor beneficial to the integrated of circuit.Self-excitation is generated using the charging and discharging process and feedback of capacitance
Vibration so that output waveform automatic conversion between two states of low and high level.
The amplitude is adjusted circuit and the output voltage of double-limit comparator is sampled using potentiometer Rp, then will sampling
Voltage is connected to the in-phase proportion amplifying circuit being made of operational amplifier and resistor network R2R3.Memristor is vibrated in order to reduce
The influence of device circuit output signal, the voltage sampling potentiometer that amplitude is adjusted in circuit should select big resistance value (desirable 100K
Europe).
The beneficial effects of the invention are as follows：With natural memory function and good switch performance, circuit structure is compact, work
Work is stablized, and adaptability is good, improves work efficiency, low in energy consumption, and with good anti-interference and reliability.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the programmable doube bridge circuit of the present invention.
Fig. 2 is the programmable gain amplifier of the present invention.
Fig. 3 is the waveform generator of the present invention.
The amplitude that Fig. 4 is the present invention adjusts circuit.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Such as Fig. 1, doube bridge circuit is may be programmed, including two input pulses signal source Vl, V2, positive voltage pulse can be exported.
M1, M4 are P-channel enhancement type FETs, and low level is effective, for the break-make of control loop.The operating voltage of circuit is 5V.
When V1 opens (input low level), and V2 closes (input high level), P-channel field-effect transistor (PEFT) pipe Ml and M2 conducting, M3 are closed, electric current
Cathode (minus) is flowed to from the anode (plus) of memristor by R3, the resistance value of memristor reduces at this time.When Vl is closed, V2 is beaten
When opening, M3 and M4 conductings, Ml and M2 are closed, and electric current flows to anode (plus) by R4 from the cathode (minus) of memristor.
Such as Fig. 2, programmable gain amplifier is as common same phase operational amplifier, input signal Y in (t) loadings
To the positive input terminal y+ of operational amplifier；Negative input end domestic animal is connected to two resistance, is feedback resistance and memristor respectively.Memristor
Device programmable circuit can be divided into two working stages.In the programming operation stage, adjusting control signal source VP makes field-effect tube M1
Or M2 conductings, in pulse signal loading to memristor, the state of memristor is programmed, the resistance value of memristor can be
[any value in the range of [Ron, Roff].After memristor is adjusted to the state needed, field-effect tube M1 and M2 are closed.
Such as Fig. 3, square-wave signal generator mainly includes the hysteresis voltage comparator of anti-phase input and RC integrators two
Parallel circuit.Voltage comparator has switching function, the low and high level output state of control circuit.RC circuits are not only signal
The delay link of device, while be also the feedback element of signal generator.The signal output part of voltage comparator especially adds one
A amplitude limit link is mainly made of a current-limiting resistance and two back-to-back voltage-stabiliser tubes.The output electricity of signal generator circuit
Pressure is Symmetrical, and amplitude depends on the voltage stabilizing value of voltage-stabiliser tube.The output frequency of signal generator can pass through potentiometer
R5 or R6 is adjusted, but suitable self-excited oscillatory frequency in order to obtain, and discrete large bulk capacitance element is generally required in circuit,
Not only energy consumption is big, nor beneficial to the integrated of circuit.It is generated certainly using the charging and discharging process and feedback of capacitance
Induced Oscillation so that output waveform automatic conversion between two states of low and high level.
Such as Fig. 4, amplitude is adjusted circuit and the output voltage of double-limit comparator is sampled using potentiometer Rp, then will taken
Sample voltage is connected to the in-phase proportion amplifying circuit being made of operational amplifier and resistor network R2R3.It shakes to reduce to memristor
The influence of device circuit output signal is swung, the voltage sampling potentiometer that amplitude is adjusted in circuit should select big resistance value (desirable 100K
Europe).
Claims (9)
1. a kind of programmable analog circuit based on memristor, it is characterized in that：Programmable analog based on the memristor electricity
Routing is adjusted circuit and is formed by programmable doube bridge circuit, programmable gain amplifier, waveform generator, amplitude.
2. a kind of programmable analog circuit based on memristor according to claim 1, it is characterized in that：It is described programmable double
Bridge circuit including two input pulses signal source Vl, V2, can export positive voltage pulse, and M1, M4 are P-channel enhancement type field effects
Ying Guan, low level is effective, for the break-make of control loop.
3. a kind of programmable analog circuit based on memristor according to claim 1, it is characterized in that：Described is programmable
In doube bridge circuit, when V1 opens (input low level), and V2 closes (input high level), P-channel field-effect transistor (PEFT) pipe Ml and M2 conducting,
M3 is closed, and electric current flows to cathode (minus) by R3 from the anode (plus) of memristor, and the resistance value of memristor reduces at this time.
4. a kind of programmable analog circuit based on memristor according to claim 1, it is characterized in that：Described is programmable
For gain amplifier as common same phase operational amplifier, input signal Y in (t) is loaded into the positive input terminal of operational amplifier
y+；Negative input end domestic animal is connected to two resistance, is feedback resistance and memristor respectively.
5. a kind of programmable analog circuit based on memristor according to claim 1, it is characterized in that：The memristor can
Programmed circuit can be divided into two working stages, and in the programming operation stage, adjusting control signal source VP makes field-effect tube M1 or M2
Conducting, in pulse signal loading to memristor, is programmed the state of memristor.
6. a kind of programmable analog circuit based on memristor according to claim 1, it is characterized in that：The rectangular wave letter
Number generator mainly includes the hysteresis voltage comparator of anti-phase input and RC integrator two parts circuits.
7. voltage comparator has switching function, the low and high level output state of control circuit.
8. a kind of programmable analog circuit based on memristor according to claim 1, it is characterized in that：The amplitude is adjusted
Circuit is sampled the output voltage of double-limit comparator using potentiometer Rp, and then sampling voltage is connected to by operation amplifier
The in-phase proportion amplifying circuit of device and resistor network R2R3 compositions.
9. a kind of programmable analog circuit based on memristor according to claim 1, it is characterized in that：The amplitude is adjusted
For circuit in order to reduce the influence to memristor pierce circuit output signal, the voltage sampling potentiometer that amplitude is adjusted in circuit should
Select big resistance value (desirable 100K Europe).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611054388.9A CN108109654A (en) | 2016-11-25 | 2016-11-25 | A kind of programmable analog circuit based on memristor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611054388.9A CN108109654A (en) | 2016-11-25 | 2016-11-25 | A kind of programmable analog circuit based on memristor |
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| CN108109654A true CN108109654A (en) | 2018-06-01 |
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| CN201611054388.9A Pending CN108109654A (en) | 2016-11-25 | 2016-11-25 | A kind of programmable analog circuit based on memristor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109858619A (en) * | 2019-01-22 | 2019-06-07 | 杭州电子科技大学 | Circuit occurs for the nerve impulse based on spin oscillator |
| CN110197688A (en) * | 2019-04-23 | 2019-09-03 | 杭州电子科技大学 | A kind of memristor circuit |
| TWI687045B (en) * | 2019-04-17 | 2020-03-01 | 華邦電子股份有限公司 | Oscillator and operation method thereof |
| CN111865264A (en) * | 2019-04-26 | 2020-10-30 | 华邦电子股份有限公司 | Oscillator and operation method thereof |
| CN113465635A (en) * | 2021-06-10 | 2021-10-01 | 电子科技大学 | Device for converting signals of sensor and neural network computing unit |
| CN118074641A (en) * | 2024-02-27 | 2024-05-24 | 广东工业大学 | Programmable gain amplifying circuit and control method |
-
2016
- 2016-11-25 CN CN201611054388.9A patent/CN108109654A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109858619A (en) * | 2019-01-22 | 2019-06-07 | 杭州电子科技大学 | Circuit occurs for the nerve impulse based on spin oscillator |
| TWI687045B (en) * | 2019-04-17 | 2020-03-01 | 華邦電子股份有限公司 | Oscillator and operation method thereof |
| US11056999B2 (en) | 2019-04-17 | 2021-07-06 | Winbond Electronics Corp. | Oscillator and operation method thereof |
| CN110197688A (en) * | 2019-04-23 | 2019-09-03 | 杭州电子科技大学 | A kind of memristor circuit |
| CN111865264A (en) * | 2019-04-26 | 2020-10-30 | 华邦电子股份有限公司 | Oscillator and operation method thereof |
| CN111865264B (en) * | 2019-04-26 | 2024-01-23 | 华邦电子股份有限公司 | Oscillator and method of operating the same |
| CN113465635A (en) * | 2021-06-10 | 2021-10-01 | 电子科技大学 | Device for converting signals of sensor and neural network computing unit |
| CN118074641A (en) * | 2024-02-27 | 2024-05-24 | 广东工业大学 | Programmable gain amplifying circuit and control method |
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Application publication date: 20180601 |