CN104459258B - Oscilloscope based on lamination amplification structural circuit design - Google Patents
Oscilloscope based on lamination amplification structural circuit design Download PDFInfo
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- CN104459258B CN104459258B CN201410679505.5A CN201410679505A CN104459258B CN 104459258 B CN104459258 B CN 104459258B CN 201410679505 A CN201410679505 A CN 201410679505A CN 104459258 B CN104459258 B CN 104459258B
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Abstract
The invention discloses an oscilloscope based on a lamination amplification structural circuit design. The oscilloscope comprises an attenuator, a voltage follower, an amplifier, an AD sampling circuit, a controller, a triggering circuit, a clock module, a data buffer and a displayer. The attenuator, the voltage follower, the amplifier, the AD sampling circuit, the data buffer and the displayer are connected in sequence, and the AD sampling circuit is further connected with the clock module and the triggering circuit. A trigger is connected with the data buffer and the controller. The attenuator and the amplifier are additionally arranged at the signal receiving front end, and used for performing front-end processing on entered signals, entering of interference signals is reduced, the signal-to-noise of the signals is kept, and the precision of the signals is improved; meanwhile, the displayer has a touch function so that a user can use the oscilloscope more conveniently, operation efficiency is improved, internal arrangement is user-friendlier, and the oscilloscope is novel in design and worthy of popularization.
Description
Technical field
The invention discloses a kind of oscillograph based on lamination structure for amplifying circuit design, belong to signal handling equipment technology
Field.
Background technology
Oscillograph is a kind of quite varied electronic measuring instrument of purposes.It can invisible converting electrical signal into
Observable image, is easy to people to study the change procedure of various electrical phenomenas.Oscillograph using it is narrow, be made up of high-velocity electrons
Electron beam, beat on the panel for scribbling fluorescent material, so that it may produce tiny luminous point, this is the work of traditional analog oscilloscope
Make principle.In the presence of measured signal, electron beam just looks like the nib of one-pen, and measured signal can be depicted on panel
Instantaneous value change curve.The wavy curve that various unlike signal amplitudes are changed over time can be observed using oscillograph, may be used also
A variety of electricity, such as voltage, electric current, frequency, phase difference, modulation are tested with it.
Oscillograph is, using the characteristic of electronics oscilloscope tube, the alternate electrical signal that human eye cannot be observed directly to be converted into figure
Picture, is displayed on fluorescent screen so as to the electronic measuring instrument of measurement.During it is observation digital circuit experiment phenomenon, analysis experiment
The essential important instrument of problem, measurement experiment result.
With the development of electronic technology, the progress of signal processing technology, existing equipment and tester are to oscillograph
It is required that how more and more higher, improve the signal transacting precision and accuracy of oscillograph, it has also become need most the problem of solution at present.
Patent No. 201210577495.5, patent name is a kind of oscillograph, and the patent is for problem in the prior art
The problem of solution is proposed, but the patent is to describe the means for realizing oscillograph existing capability, does not propose to improve
Mode.
Patent No. 201210509747.0, patent name is a kind of oscillograph, and the patent indicates prior art oscillography
The problem that device is present, the patent also simply proposes the problem solved from shell, how is not given from internal solve problem
Mode, solves DeGrain.
Meanwhile, there is the place for requiring further improvement on the concrete structure of amplifier circuit in the prior art, with reality
Circuit power consumption is now reduced, the effect of amplification effect is improved.
The content of the invention
The technical problems to be solved by the invention are：For the defect of prior art, there is provided one kind amplifies knot based on lamination
The oscillograph of structure circuit design, attenuator and amplifier are added in signal receiving front-end, and the signal to entering carries out front-end processing,
Reduce the entrance of interference signal.
The present invention uses following technical scheme to solve above-mentioned technical problem：
A kind of oscillograph based on lamination structure for amplifying circuit design, including attenuator, voltage follower, amplifier, AD
Sample circuit, controller, triggers circuit, clock module, data buffer, display；
Wherein attenuator, voltage follower, amplifier, AD sample circuits, data buffer, display are sequentially connected, AD
Sample circuit is also connected with clock module, triggers circuit respectively；The triggers circuit respectively with data buffer, controller phase
Even；
Input signal enters attenuator, and the amplitude of signal is decayed via attenuator, and the signal after decay enters
Signal gain amplification is carried out into amplifier after voltage follower, AD sample circuits, AD samplings are entered by the signal after amplification
Circuit is sampled to signal, and the signal after being sampled is stored in data buffer, and is shown by display；
The clock module provides sampling clock for AD sample circuits, and controller control triggers circuit starts AD sample circuits
And data buffer；
The display is touch-screen, and operation interface is provided with controller, is shown by display screen, for operating.
The particular circuit configurations of the amplifier include the first to the 13rd resistance, the first to the 11st electric capacity, first to
3rd triode, wherein, the 3rd electric capacity one end, one end of the 4th electric capacity, the base stage of the first triode respectively with the first electric capacity
It is connected, one end, one end of 3rd resistor, the 8th electricity of the other end of the 4th electric capacity by second resistance respectively with the 6th resistance
One end of appearance, one end of the 5th resistance, one end of the 7th resistance, one end of the 13rd resistance, one end of the 12nd resistance are connected
Connect, the other end of the first electric capacity one end respectively with first resistor, one end of the tenth resistance are connected, the other end of first resistor
The other end by the 8th electric capacity and the 6th resistance is connected, the other end of the tenth resistance one end, respectively with the 9th resistance
One end of seven electric capacity is connected, and the other end of the 9th resistance one end respectively with the 6th electric capacity, one end of the 11st resistance are connected
Connect, the other end of the 11st resistance emitter stage respectively with the second triode, one end of the 9th electric capacity are connected, the 6th electric capacity
The other end is connected by one end of the 8th resistance one end respectively with the second electric capacity, the 4th resistance, the other end of the second electric capacity
Emitter stage with the first triode is connected, and the other end of the 4th resistance and the other end of the 8th electric capacity are connected, the one or three pole
The colelctor electrode of the pipe other end respectively with 3rd resistor, one end of the 5th electric capacity are connected, the other end and second of the 5th electric capacity
The base stage of triode is connected, and the other end of the colelctor electrode of the second triode and the 5th resistance is connected, the 9th electric capacity it is another
The end other end respectively with the 7th resistance, the base stage of the 3rd triode are connected, the colelctor electrode of the 3rd triode and the 13rd electricity
The other end of resistance is connected, the other end of the 7th electric capacity by the tenth electric capacity respectively with emitter stage, the 11st of the 3rd triode
One end of electric capacity is connected, and the other end of the 11st electric capacity and the other end of the 12nd resistance are connected.
Used as further prioritization scheme of the invention, the chip model that the attenuator is used is HMC274.
Used as further prioritization scheme of the invention, the chip model of the voltage follower is LM358.
Used as further prioritization scheme of the invention, the controller uses single-chip microcomputer, the model of the single-chip microcomputer
STC90C51。
Used as further prioritization scheme of the invention, the chip that the clock module is used is DS1302.
Used as further prioritization scheme of the invention, also including keyboard, the keyboard is connected with controller.
As further prioritization scheme of the invention, also including wave filter, the wave filter be arranged at voltage follower and
Between amplifier, the signal exported via voltage follower is amplified after the filtering of device into amplifier after filtering.
The present invention uses above technical scheme compared with prior art, with following technique effect：The present invention connects in signal
Receive front end and add attenuator and amplifier, the signal to entering carries out front-end processing, reduce the entrance of interference signal, keep signal
Signal to noise ratio, improve signal accuracy, while display with touch function it is more convenient to use when operation, improve operation
Efficiency, inside sets more hommization, novel in design, is worthy to be popularized.Meanwhile, the present invention uses the design of lamination structure for amplifying,
The power output of amplifier is improve, the specific power consumption of circuit is reduced.
Brief description of the drawings
Fig. 1 is circuit module connection diagram of the invention.
Fig. 2 is amplifier circuit schematic diagram of the invention,
Wherein：R1 to R13 is respectively the first to the 13rd resistance, and C1 to C11 is respectively the first to the 11st electric capacity, and D1 is extremely
D3 is respectively the first to the 3rd triode.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the implementation method is shown in the drawings, wherein ad initio
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The implementation method for examining Description of Drawings is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are it is understood that the correlation module that is related in the present invention and its function of realization
It is to carry computer software programs conventional in the prior art in device, device or the system of hardware after improvement and its composition
It is not that computer software programs of the prior art or relevant agreement are improved or relevant agreement is achieved that.For example,
Computer hardware system after improvement still can realize the spy of the hardware system by loading existing operation system of software
Determine function.It is understood, therefore, that innovation of the invention is improvement and its company to hardware module in the prior art
Connect syntagmatic, rather than be only in hardware module to realize the improvement of software or agreement carried about function.
Those skilled in the art of the present technique are it is understood that the correlation module mentioned in the present invention is performed for the application
Described in one or more in step, measure, scheme in operation, method, flow of hardware device.The hardware device can
Purpose needed for thinking and specially design and manufacture, or can also using the known device in all-purpose computer or it is known its
His hardware device.The all-purpose computer is activated or reconstructed with having procedure Selection of the storage in it.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " " used herein, " one
It is individual ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that what is used in specification of the invention arranges
Diction " including " refer to the presence of the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
One or more other features, integer, step, operation, element, component and/or their group.It should be understood that when we claim unit
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or can also exist
Intermediary element.Additionally, " connection " used herein or " coupling " can include wireless connection or coupling.Wording used herein
"and/or" includes one or more associated any cells for listing item and all combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) have with art of the present invention in those of ordinary skill general understanding identical meaning.Should also
Understand, those terms defined in such as general dictionary should be understood that the meaning having with the context of prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or excessively formal implication be explained.
Technical scheme is described in further detail below in conjunction with the accompanying drawings：
Circuit module connection diagram of the invention is as shown in figure 1, a kind of showing based on lamination structure for amplifying circuit design
Ripple device, including attenuator, voltage follower, amplifier, AD sample circuits, controller, triggers circuit, clock module, data are slow
Storage, display；
Wherein attenuator, voltage follower, amplifier, AD sample circuits, data buffer, display are sequentially connected, AD
Sample circuit is also connected with clock module, triggers circuit respectively；The triggers circuit respectively with data buffer, controller phase
Even；
Input signal enters attenuator, and the amplitude of signal is decayed via attenuator, and the signal after decay enters
Signal gain amplification is carried out into amplifier after voltage follower, AD sample circuits, AD samplings are entered by the signal after amplification
Circuit is sampled to signal, and the signal after being sampled is stored in data buffer, and is shown by display；
The clock module provides sampling clock for AD sample circuits, and controller control triggers circuit starts AD sample circuits
And data buffer；
The display is touch-screen, and operation interface is provided with controller, is shown by display screen, for operating.
Wave filter also can be set between the voltage follower and amplifier, signal is filtered, filtering clutter it is dry
Disturb, while also can concurrently or separately set wave filter after amplifier, noise signal is mixed into the signal after amplification, wave filter
It is more accurate that filter range to be set.
Amplifier circuit schematic diagram of the invention as shown in Fig. 2 the amplifier particular circuit configurations include first to
13rd resistance, the first to the 11st electric capacity, the first to the 3rd triode, wherein, the 3rd electric capacity is respectively with the one of the first electric capacity
End, one end of the 4th electric capacity, the base stage of the first triode are connected, and the other end of the 4th electric capacity is by second resistance respectively with
One end of six resistance, one end of 3rd resistor, one end of the 8th electric capacity, one end of the 5th resistance, one end, the tenth of the 7th resistance
One end of three resistance, one end of the 12nd resistance are connected, the other end of the first electric capacity one end, the tenth respectively with first resistor
One end of resistance is connected, and the other end of first resistor is connected by the other end of the 8th electric capacity and the 6th resistance, the tenth electricity
The other end of resistance one end respectively with the 9th resistance, one end of the 7th electric capacity are connected, and the other end of the 9th resistance is respectively with
One end of six electric capacity, one end of the 11st resistance are connected, the other end of the 11st resistance respectively with the transmitting of the second triode
Pole, one end of the 9th electric capacity are connected, one end, the 4th of the other end of the 6th electric capacity by the 8th resistance respectively with the second electric capacity
One end of resistance is connected, and the emitter stage of the other end of the second electric capacity and the first triode is connected, the other end of the 4th resistance
The other end with the 8th electric capacity is connected, the colelctor electrode of the first triode other end respectively with 3rd resistor, the 5th electric capacity
One end is connected, and the other end of the 5th electric capacity and the base stage of the second triode are connected, the colelctor electrode of the second triode and the 5th
The other end of resistance is connected, the other end of the 9th electric capacity other end, the base stage phase of the 3rd triode respectively with the 7th resistance
Connection, the colelctor electrode of the 3rd triode and the other end of the 13rd resistance are connected, and the other end of the 7th electric capacity is by the tenth electricity
Hold emitter stage respectively with the 3rd triode, one end of the 11st electric capacity to be connected, the other end and the 12nd of the 11st electric capacity
The other end of resistance is connected.
Used as further prioritization scheme of the invention, the chip model that the attenuator is used is HMC274, can also be used
The attenuator that resistance is set up, specifically according to the size of circuit board or can realize that the requirement of precision is selected using which kind of mode
Select.
Used as further prioritization scheme of the invention, the chip model of the voltage follower is LM358, voltage follow
Device, as the term suggests, it is to realize that output voltage follows an electron-like element of the change of input voltage.That is, voltage follow
The voltage amplification factor of device is permanent less than and close to 1.The distinguishing feature of voltage follower is exactly that input impedance is high, and output impedance
It is low, the load capacity of rear end is improved, improve the carrying capacity of circuit.
Used as further prioritization scheme of the invention, the controller uses single-chip microcomputer, the model of the single-chip microcomputer
STC90C51。
Used as further prioritization scheme of the invention, the chip that the clock module is used is DS1302, and the chip can be straight
Connect and be connected with single-chip microcomputer, realize clock, it is to avoid the conventional problem that clock is separately provided inside single-chip microcomputer, go wrong just
In lookup.
Used as further prioritization scheme of the invention, also including keyboard, the keyboard is connected with controller, in the present invention
Display has contact action function, adds both cooperatings after keyboard, more facilitates when using, and operating efficiency is improved, one
When side goes wrong, there is alternative.
Embodiments of the present invention are explained in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned implementation
Mode, in the ken that those of ordinary skill in the art possess, can also be on the premise of present inventive concept not be departed from
Make a variety of changes.The above, is only presently preferred embodiments of the present invention, and any formal limit is not made to the present invention
System, although the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional skill
Art personnel, without departing from the scope of the present invention, when using the technology contents of the disclosure above make it is a little change or
The Equivalent embodiments of equivalent variations are modified to, as long as being without departing from technical solution of the present invention content, according to technology reality of the invention
Matter, within the spirit and principles in the present invention, any simple modification, equivalent and the improvement made to above example
Deng still falling within the protection domain of technical solution of the present invention.
Claims (7)
1. a kind of oscillograph based on lamination structure for amplifying circuit design, it is characterised in that：Including attenuator, voltage follower,
Amplifier, AD sample circuits, controller, triggers circuit, clock module, data buffer, display；
Wherein attenuator, voltage follower, amplifier, AD sample circuits, data buffer, display are sequentially connected, AD samplings
Circuit is also connected with clock module, triggers circuit respectively；The triggers circuit is connected with data buffer, controller respectively；
Input signal enters attenuator, and the amplitude of signal is decayed via attenuator, and the signal after decay enters voltage
Signal gain amplification is carried out into amplifier after follower, AD sample circuits, AD sample circuits are entered by the signal after amplification
Signal is sampled, the signal after being sampled is stored in data buffer, and is shown by display；
The clock module provides sampling clock for AD sample circuits, and controller control triggers circuit starts AD sample circuit sums
According to buffer；
The display is touch-screen, and operation interface is provided with controller, is shown by display screen, for operating；
The particular circuit configurations of the amplifier include the first to the 13rd resistance, the first to the 11st electric capacity, first to the 3rd
Triode, wherein, the 3rd electric capacity one end respectively with the first electric capacity, one end of the 4th electric capacity, the base stage of the first triode are connected
Connect, the other end of the 4th electric capacity is by second resistance one end respectively with the 6th resistance, one end of 3rd resistor, the 8th electric capacity
One end, one end of the 5th resistance, one end of the 7th resistance, one end of the 13rd resistance, one end of the 12nd resistance are connected, the
The other end of one electric capacity one end respectively with first resistor, one end of the tenth resistance are connected, and the other end of first resistor passes through
The other end of the 8th electric capacity and the 6th resistance is connected, the other end of the tenth resistance one end, the 7th electricity respectively with the 9th resistance
One end of appearance is connected, and the other end of the 9th resistance one end respectively with the 6th electric capacity, one end of the 11st resistance are connected, and
The other end of 11 resistance emitter stage respectively with the second triode, one end of the 9th electric capacity are connected, the 6th electric capacity it is another
Hold and be connected by one end of the 8th resistance one end respectively with the second electric capacity, the 4th resistance, the other end of the second electric capacity and the
The emitter stage of one triode is connected, and the other end of the 4th resistance and the other end of the 8th electric capacity are connected, the first triode
The colelctor electrode other end respectively with 3rd resistor, one end of the 5th electric capacity are connected, the other end of the 5th electric capacity and the two or three pole
The base stage of pipe is connected, and the other end of the colelctor electrode of the second triode and the 5th resistance is connected, the other end point of the 9th electric capacity
It is not connected with the other end of the 7th resistance, the base stage of the 3rd triode, the colelctor electrode of the 3rd triode and the 13rd resistance
The other end is connected, emitter stage, the 11st electric capacity of the other end of the 7th electric capacity by the tenth electric capacity respectively with the 3rd triode
One end be connected, the other end of the 11st electric capacity and the other end of the 12nd resistance are connected.
2. a kind of oscillograph based on lamination structure for amplifying circuit design as claimed in claim 1, it is characterised in that：It is described to decline
It is HMC274 to subtract the chip model that device uses.
3. a kind of oscillograph based on lamination structure for amplifying circuit design as claimed in claim 1, it is characterised in that：The electricity
The chip model for pressing follower is LM358.
4. a kind of oscillograph based on lamination structure for amplifying circuit design as claimed in claim 3, it is characterised in that：The control
Device processed uses single-chip microcomputer, the model STC90C51 of the single-chip microcomputer.
5. a kind of oscillograph based on lamination structure for amplifying circuit design as claimed in claim 1, it is characterised in that：When described
The chip that clock module is used is DS1302.
6. a kind of oscillograph based on lamination structure for amplifying circuit design as claimed in claim 1, it is characterised in that：Also include
Keyboard, the keyboard is connected with controller.
7. a kind of oscillograph based on lamination structure for amplifying circuit design as claimed in claim 1, it is characterised in that：Also include
Wave filter, the wave filter is arranged between voltage follower and amplifier, via the signal of voltage follower output through filtering
It is amplified into amplifier after the filtering of ripple device.
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| CN201410679505.5A CN104459258B (en) | 2014-11-25 | 2014-11-25 | Oscilloscope based on lamination amplification structural circuit design |
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| CN201410679505.5A CN104459258B (en) | 2014-11-25 | 2014-11-25 | Oscilloscope based on lamination amplification structural circuit design |
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| CN104459258B true CN104459258B (en) | 2017-05-24 |
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