CN106130511B - A kind of method for generation of discontinuously wave pulse signal - Google Patents
A kind of method for generation of discontinuously wave pulse signal Download PDFInfo
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- CN106130511B CN106130511B CN201610518602.5A CN201610518602A CN106130511B CN 106130511 B CN106130511 B CN 106130511B CN 201610518602 A CN201610518602 A CN 201610518602A CN 106130511 B CN106130511 B CN 106130511B
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/64—Generators producing trains of pulses, i.e. finite sequences of pulses
- H03K3/66—Generators producing trains of pulses, i.e. finite sequences of pulses by interrupting the output of a generator
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Abstract
The invention discloses a kind of method for generation of discontinuously wave pulse signal, this method is based on impulse wave and circuit realiration occurs, and input signal is after DA numerals revolving die intends circuit conversion, form analog signal, after the filter circuit that analog signal is made up of R0 and C3 filters, amplify through amplifier, form amplified signal；By PMOS output constant current source, output transformer T1 is input to, meanwhile, clock pins 1 and clock pins 2 are connected by the single-chip microcomputer in the external world, the output sequence for exporting transformer T1 is regulated and controled, so as to obtain the pulse signal of the discontinuous wave of high accuracy and high stability.
Description
Technical field
The present invention relates to electricity field, more particularly to a kind of method for generation of discontinuously wave pulse signal.
Background technology
For traditional pulse wave generation circuit, because the DA output accuracies that system uses are low, cause whole pulse generation
Circuit precision is low, the shortcomings of the Ic current vs. temperature sensitivities of triode.Precision of the impulse generator DA precision to whole product
Influence is very big, and the present invention is directed to disadvantages mentioned above, has invented a kind of novel pulse wave generation circuit, additional using high-precision DA
Metal-oxide-semiconductor circuit, circuit is simple, and reliability is high, and high to temperature stability, and current loss is small, and circuit can bear broader defeated
The advantages that entering voltage range.Improving DA precision makes that circuit output current stepping is thinner, and output current is more stable.Metal-oxide-semiconductor has work
It is extremely low to make electric current, the advantages that Ron conducting resistances are small, and in-fighting is small.Whole pulse-generator circuit power consumption is made more using metal-oxide-semiconductor driving
It is low, the advantages that caloric value is small.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of method for generation of discontinuously wave pulse signal.
The purpose of the present invention is achieved through the following technical solutions：A kind of method for generation of discontinuously wave pulse signal, institute
State method be based on impulse wave occur circuit realiration, it is described generation circuit including DA numerals turn analog circuit, resistance R0, electric capacity C3,
Amplifier, resistance R1, resistance R3, electric capacity C1, PMOS, resistance R80, resistance Rs, output transformer T1, triode Q1, triode
Q2, resistance R8, resistance R9, clock pins 1 and clock pins 2.The DA numerals turn the output end of analog circuit and R0 one end
It is connected, the R0 other end is connected with the positive input terminal of amplifier, electric capacity C3 one end ground connection, the other end and the positive input terminal phase of amplifier
Even；The power pin of amplifier is connected with 9v power supplys, the ground pin ground connection of amplifier, electric capacity C1 one end and the output end phase of amplifier
Even, the other end is connected with the negative input end of amplifier；The output end of amplifier is connected with resistance R1 one end, and the resistance R1 other end connects
Connect the G poles of PMOS, after the d poles connection resistance R80 of PMOS, be connected with 9v power supplys；After the s poles connection resistance Rs of PMOS,
It is connected with the centre cap for exporting transformer T1；Resistance R3 one end is connected with the negative input end of amplifier, the s of the other end and PMOS
Extremely it is connected；The colelctor electrode with triode Q1, triode Q2 colelctor electrode are connected output transformer T1 two inputs respectively；Three poles
Pipe Q1 emitter stage, triode Q2 emitter stage is grounded；After triode Q1 base stage is connected with resistance R8, with clock pins 1
It is connected, after triode Q2 base stage is connected with resistance R9, is connected with clock pins 2.This method comprises the following steps：
(1) turn analog circuit input data signal to DA numerals, after digital-to-analogue conversion, form analog signal；
(2) after the filter circuit that analog signal is made up of R0 and C3 filters, amplify through amplifier, form amplified signal；
(3) clock pins 1 and clock pins 2 are connected by single-chip microcomputer, transformer t1 output sequence is regulated and controled, adjusted
Prosecutor formula is：
(3.1) in initial time t0, clock pins 2 export high level, and clock pins 1 export low level；
(3.2) at the to+t1 moment, clock pins 2 export low level, and clock pins 1 export high level；T1 is discontinuous wave
Ripple is wide；
(3.3) at the to+t1+t2 moment, clock pins 2 export high level, and clock pins 1 export low level；T2 is interrupted
The frequency of ripple；
(3.4) repeat step 3.2~3.3,3s is persistently exported, then clock pins 1 and clock pins 2 export high electricity
It is flat, 3s is persistently exported, completes a cycle；
(4) amplified signal that step 2 obtains passes through PMOS output constant current source, and the clock signal regulated and controled with step 3 is simultaneously
Output transformer T1 is input to, finally gives interrupted waveshape to pulse signal.
The beneficial effects of the present invention are：The high-precision constant flow source circuit can realize that 0-4V voltages control 0-50mA electric currents are defeated
Go out, using operational amplifier as constant-current source output driving, in conjunction with the low impedance characteristic of metal-oxide-semiconductor, be particularly suitable for constant-current source output
In circuit, and whole system activated amplifier, as driving, the temperature drift that works long hours is small, and output is stable, battery life is longer.
Higher than traditional circuit stability exported of being made of triode, precision is high.
Brief description of the drawings
Fig. 1 is the circuit diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of pulse wave generation circuit of the present invention, including DA numerals turn analog circuit, resistance R0, electric capacity
C3, amplifier, resistance R1, resistance R3, electric capacity C1, PMOS, resistance R80, resistance Rs, output transformer T1, triode Q1, three poles
Pipe Q2, resistance R8, resistance R9, clock pins 1 and clock pins 2.
DA numerals in the present invention, which turn analog circuit, to use product, the amplifiers such as ti, maxim to use OPA211；
Resistance R0 is generally 1k~3k；Resistance R1 is generally 33~100ohm, and resistance R3 is generally 10~20k, resistance R8 and resistance R9
Generally 1k~3k, resistance Rs are generally 80~100ohm, resistance R80 is generally 80ohm；Electric capacity C1 is generally 270pf, electric capacity
C3 is generally 0.1uf；The turn ratio for exporting transformer T1 is 1:100~120.
DA numerals turn the output end of analog circuit and are connected with R0 one end, the R0 other end and the positive input terminal phase of amplifier
Even, electric capacity C3 one end ground connection, the other end are connected with the positive input terminal of amplifier；The power pin of amplifier is connected with 9v power supplys, fortune
The ground pin ground connection put, electric capacity C1 one end are connected with the output end of amplifier, and the other end is connected with the negative input end of amplifier；Amplifier
Output end be connected with resistance R1 one end, the G poles of resistance R1 other end connection PMOS, the d poles connection resistance of PMOS
After R80, it is connected with 9v power supplys；After the s poles connection resistance Rs of PMOS, it is connected with the centre cap for exporting transformer T1；Resistance
R3 one end is connected with the negative input end of amplifier, and the other end is extremely connected with the s of PMOS；Export transformer T1 two inputs difference
Colelctor electrode, triode Q2 colelctor electrode with triode Q1 are connected；Triode Q1 emitter stage, triode Q2 emitter stage connects
Ground；After triode Q1 base stage is connected with resistance R8, it is connected with clock pins 1, after triode Q2 base stage is connected with resistance R9,
It is connected with clock pins 2.
After system electrification, input signal forms analog signal after DA numerals revolving die intends circuit conversion, and analog signal passes through
After the filter circuit filtering of R0 and C3 compositions, amplify through amplifier, form amplified signal；Passing through PMOS output constant current source, it is defeated
Enter to output transformer T1, meanwhile, clock pins 1 and clock pins 2 are connected by the single-chip microcomputer in the external world, to exporting transformer T1
Output sequence regulated and controled, so as to obtain the waveform of high accuracy and high stability.It is specific as follows：
(1) turn analog circuit input data signal to DA numerals, after digital-to-analogue conversion, form analog signal；
(2) after the filter circuit that analog signal is made up of R0 and C3 filters, amplify through amplifier, form amplified signal；
(3) clock pins 1 and clock pins 2 are connected by single-chip microcomputer, transformer t1 output sequence is regulated and controled, adjusted
Prosecutor formula is：
(3.1) in initial time t0, clock pins 2 export high level, and clock pins 1 export low level；
(3.2) at the to+t1 moment, clock pins 2 export low level, and clock pins 1 export high level；T1 is discontinuous wave
Ripple is wide；
(3.3) at the to+t1+t2 moment, clock pins 2 export high level, and clock pins 1 export low level；T2 is interrupted
The frequency of ripple；
(3.4) repeat step 3.2~3.3,3s is persistently exported, then clock pins 1 and clock pins 2 export high electricity
It is flat, 3s is persistently exported, completes a cycle；
(4) amplified signal that step 2 obtains passes through PMOS output constant current source, and the clock signal regulated and controled with step 3 is simultaneously
Output transformer T1 is input to, finally gives interrupted waveshape to pulse signal.
Claims (1)
- A kind of 1. method for generation of discontinuously wave pulse signal, it is characterised in that methods described is based on impulse wave and circuit realiration occurs, The generation circuit turns analog circuit, resistance R0, electric capacity C3, amplifier, resistance R1, resistance R3, electric capacity C1, PMOS including DA numerals Pipe, resistance R80, resistance Rs, output transformer T1, triode Q1, triode Q2, resistance R8, resistance R9, clock pins 1 and when Clock pin 2；The DA numerals turn the output end of analog circuit and are connected with R0 one end, the R0 other end and the positive input terminal of amplifier It is connected, electric capacity C3 one end ground connection, the other end is connected with the positive input terminal of amplifier；The power pin of amplifier is connected with 9v power supplys, The ground pin ground connection of amplifier, electric capacity C1 one end are connected with the output end of amplifier, and the other end is connected with the negative input end of amplifier；Fortune The output end put is connected with resistance R1 one end, the G poles of resistance R1 other end connection PMOS, the d poles connection electricity of PMOS After hindering R80, it is connected with 9v power supplys；After the s poles connection resistance Rs of PMOS, it is connected with the centre cap for exporting transformer T1；Electricity Resistance R3 one end is connected with the negative input end of amplifier, and the other end is extremely connected with the s of PMOS；Export a transformer T1 input Colelctor electrode, another input with triode Q1 are connected with triode Q2 colelctor electrode；Triode Q1 emitter stage, triode Q2 emitter stage is grounded；After triode Q1 base stage is connected with resistance R8, it is connected with clock pins 1, triode Q2 base stage After being connected with resistance R9, it is connected with clock pins 2；This method comprises the following steps：（1）Turn analog circuit input data signal to DA numerals, after digital-to-analogue conversion, form analog signal；（2）After the filter circuit that analog signal is made up of R0 and C3 filters, amplify through amplifier, form amplified signal；（3）By single-chip microcomputer by clock pins 1 and clock pins 2, the output sequence for exporting transformer T1 is regulated and controled, adjusted Prosecutor formula is：（3.1）In initial time t0, clock pins 2 export high level, and clock pins 1 export low level；（3.2）At the t0+t1 moment, clock pins 2 export low level, and clock pins 1 export high level；T1 is the ripple of discontinuous wave It is wide；（3.3）At the t0+t1+t2 moment, clock pins 2 export high level, and clock pins 1 export low level；T2 is discontinuous wave Frequency；（3.4）Repeat step 3.2~3.3,3s is persistently exported, then clock pins 1 and clock pins 2 export high level, hold Continuous output 3s, completes a cycle；（4）Step（2）The amplified signal of acquisition passes through PMOS output constant current source, and the clock signal regulated and controled with step 3 is simultaneously defeated Enter the pulse signal for output transformer T1, finally giving interrupted waveshape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518602.5A CN106130511B (en) | 2016-06-28 | 2016-06-28 | A kind of method for generation of discontinuously wave pulse signal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610518602.5A CN106130511B (en) | 2016-06-28 | 2016-06-28 | A kind of method for generation of discontinuously wave pulse signal |
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| Publication Number | Publication Date |
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| CN106130511A CN106130511A (en) | 2016-11-16 |
| CN106130511B true CN106130511B (en) | 2018-03-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5673028A (en) * | 1993-01-07 | 1997-09-30 | Levy; Henry A. | Electronic component failure indicator |
| CN2183049Y (en) * | 1994-01-12 | 1994-11-16 | 吴奇 | Instrument for generating pulse wave |
| CN201557091U (en) * | 2009-12-16 | 2010-08-18 | 台安科技(无锡)有限公司 | Circuit used for converting PWM signals into analogue signals |
| CN103655164B (en) * | 2013-11-21 | 2016-01-27 | 成都中医药大学 | That supports multiple-channel output follows the treatment of card acupuncture meridian and detector and using method thereof |
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Application publication date: 20161116 Assignee: Dalishen Medical Apparatus & Instruments Co., Ltd., Hangzhou City Assignor: Zhejiang Chinese Medicine University Contract record no.: 2018330000116 Denomination of invention: Discontinuous wave pulse signal generation method Granted publication date: 20180316 License type: Exclusive License Record date: 20181031 |
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