CN109889188A - Triangle wave generation device and system - Google Patents
Triangle wave generation device and system Download PDFInfo
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Abstract
The present invention relates to a kind of triangle wave generation device and systems, pulse signal source output data pulse signal is to data pulse preprocessing module, data pulse preprocessing module is to data pulse signal shaping, to solve the problems, such as overshoot and pulse deformation that data pulse signal generates in the transmission, make it is shaped after data pulse signal impulse waveform it is stable, balanced.Jayrator time delay module exports first phase signal and second phase signal to deformation according to the data pulse signal after shaping respectively and module occurs, so that deformation occurs module and exports triangular wave.Wherein, jayrator time delay module can also stablize the pulsewidth and phase of the triangular wave, to solve the problems, such as that unstable pwm triangular wave, phase-unstable and amplitude coincidence are poor.Based on this, waveform present in the triangular wave that elimination data pulse signal deforms is poor, amplitude differs greatly has drift and other issues with time point, improves the impulse waveform quality of triangular wave.
Description
Technical field
The present invention relates to waveform modulated technical fields, more particularly to triangle wave generation device and system.
Background technique
Signal waveform in electronic circuit signal field, including sine wave and non-sinusoidal waveform.Non-sinusoidal waveform is also known as impulse wave,
Common impulse wave includes square wave, rectangular wave and triangular wave etc..Generally, impulse wave can be generated by signal generator, but is believed
The problems such as often there is poor signal quality and be difficult to control in the impulse wave that number generator generates.Therefore, preferably to be exported
Waveform, the pulse that can be generated to signal generator are modulated.
Normally, pulse signal can be modulated using integrating circuit, gate circuit or operational amplifier etc., to obtain three
Angle wave signal.By taking pulse signal is data pulse signal as an example, it will usually using NOR gate circuit "AND" "OR" "NOT" circuit to data
Pulse signal carries out triangular wave deformation process.However, the rising edge and failing edge in data pulse signal are slower, or it is being superimposed
Noise it is larger when, be easy to cause triangular pulse to lose even basic lose.Therefore, way common in traditional technology is to make
Solved with the exclusive or gate device of suitable reversal rate or NAND gate device triangular pulse lose even lose at all ask
Topic.But which kind of exclusive or gate device or NAND gate device no matter are selected, using NOR gate circuit "AND" "OR" "NOT" circuit to data arteries and veins
It rushes signal and carries out triangular wave deformation process, that there are still waveforms is poor for obtained triangular wave, amplitude differs greatly has drift with time point
And other issues.
Summary of the invention
Based on this, it is necessary to be directed to and carry out triangular wave to data pulse signal using NOR gate circuit "AND" "OR" "NOT" circuit
Deformation process, there are waveforms that poor, amplitude differs greatly drift and other issues with time point for obtained triangular wave, provides one kind
Triangle wave generation device and system.
The present invention provides a kind of triangle wave generation devices, including data pulse preprocessing module, jayrator time delay module
Module occurs with deformation；
Data pulse preprocessing module is used for for accessing data pulse signal to data pulse signal shaping, data
Pulse preprocessing module is also used to the data pulse signal after shaping being transmitted to jayrator time delay module；
Jayrator time delay module be used for according to after shaping data pulse signal export first phase signal to deform occur
The first input end of module, jayrator time delay module are used for according to the data pulse signal output second phase signal after shaping extremely
Second input terminal of module occurs for deformation, and there are phase differences with second phase signal for first phase signal；
The output end that module is used to occur according to first phase signal and second phase signal in deformation module occurs for deformation
Export triangular wave.
Above-mentioned triangle wave generation device carries out shaping to data pulse signal by data pulse preprocessing module, with solution
The overshoot and pulse deformation problem that certainly data pulse signal generates in the transmission, make it is shaped after data pulse signal pulse
Waveform stabilization, equilibrium.Further, jayrator time delay module exports first phase letter according to the data pulse signal after shaping respectively
Number and second phase signal to deformation occur module so that deformation occur module export triangular wave.Wherein, believed according to first phase
The existing phase difference number between second phase signal, jayrator time delay module can also stability triangle wave pulsewidth and phase, with solution
Certainly pwm triangular wave is unstable, problem of phase-unstable and amplitude coincidence difference.Based on this, data pulse signal deformation is eliminated
Waveform present in obtained triangular wave is poor, amplitude differs greatly drift and other issues with time point, improves triangular wave
Impulse waveform quality.
Data pulse preprocessing module includes isolated DC circuit, biasing circuit and first in one of the embodiments,
Cache amplifying circuit；
For accessing data pulse signal, the output end of isolated DC circuit is separately connected the input terminal of isolated DC circuit
The input terminal and biasing circuit of first caching amplifying circuit；
The output end of first caching amplifying circuit is for the data pulse signal after output Shaping.
Isolated DC circuit includes capacitance in one of the embodiments,.
Biasing circuit includes the first clamp resistance, the second clamp resistance and diode in one of the embodiments,；
The output end of the anode connection isolated DC circuit of diode, the cathode of diode are separately connected the first clamp resistance
First end and the second clamp resistance first end；
The second end of first clamp resistance is for accessing logic high, and the second end of the second clamp resistance is for being grounded.
Biasing circuit further includes the first filter capacitor in one of the embodiments,；
First filter capacitor is connected in the first end and second end of the second clamp resistance in parallel.
The first caching amplifying circuit includes the first NOR gate circuit in one of the embodiments,；
One input terminal of the first NOR gate circuit be first caching amplifying circuit input terminal, the first NOR gate circuit it is another
For one input terminal for being grounded, the output end of the first NOR gate circuit is the output end of the first caching amplifying circuit.
It in one of the embodiments, further include the second filter capacitor；
Second filter capacitor is connected in the input terminal and output end of the first caching amplifying circuit in parallel.
Jayrator time delay module includes the first delay circuit and the second caching amplifying circuit in one of the embodiments,；
The input terminal of first delay circuit is for accessing the data pulse signal after shaping, the output end of the first delay circuit
The input terminal of connection the second caching amplifying circuit；
The output end of second caching amplifying circuit is for exporting first phase signal；
Second phase signal is the data pulse signal after shaping.
The first delay circuit includes the first time delay resistance and the first delay capacitor in one of the embodiments,；
One end of first time delay resistance is the input terminal of the first delay circuit, and the other end of the first time delay resistance prolongs for first
When circuit output end, the other end of the first time delay resistance is used to be grounded by the first delay capacitor.
The second caching amplifying circuit includes the second NOR gate circuit in one of the embodiments,；
One input terminal of the second NOR gate circuit be second caching amplifying circuit input terminal, the second NOR gate circuit it is another
For one input terminal for being grounded, the output end of the second NOR gate circuit is the output end of the second caching amplifying circuit.
In one of the embodiments, jayrator time delay module include the second delay circuit, third caching amplifying circuit and
4th caching amplifying circuit；
The input terminal of second delay circuit is for accessing the data pulse signal after shaping, the output end of the second delay circuit
Connect the input terminal of third caching amplifying circuit；
The output end of third caching amplifying circuit is for exporting first phase signal；
The input terminal of 4th caching amplifying circuit is for accessing the data pulse signal after shaping, the 4th caching amplifying circuit
Output end for exporting second phase signal.
The second delay circuit includes the second time delay resistance and the second delay capacitor in one of the embodiments,；
One end of second time delay resistance is the input terminal of the second delay circuit, and the other end of the second time delay resistance prolongs for second
When circuit output end, the other end of the second time delay resistance is used to be grounded by the second delay capacitor.
Third caching amplifying circuit includes third NOR gate circuit in one of the embodiments,；
One input terminal of third NOR gate circuit be third cache amplifying circuit input terminal, third NOR gate circuit it is another
For one input terminal for being grounded, the output end of third NOR gate circuit is the output end that third caches amplifying circuit.
The 4th caching amplifying circuit includes the 4th NOR gate circuit in one of the embodiments,；
One input terminal of the 4th NOR gate circuit be the 4th caching amplifying circuit input terminal, the 4th NOR gate circuit it is another
For one input terminal for being grounded, the output end of the 4th NOR gate circuit is the output end of the 4th caching amplifying circuit.
It includes the 5th NOR gate circuit that module, which occurs, for deformation in one of the embodiments,；
One input terminal of the 5th NOR gate circuit be deformation occur module first input end, the 5th NOR gate circuit it is another
One input terminal is the second input terminal that module occurs for deformation, and the output end of the 5th NOR gate circuit is the output that module occurs for deformation
End.
It includes NAND gate circuit that module, which occurs, for deformation in one of the embodiments,；
One input terminal of NAND gate circuit is the first input end that module occurs for deformation, another input terminal of NAND gate circuit
The second input terminal of module occurs for deformation, the output end of NAND gate circuit is the output end that module occurs for deformation.
The present invention also provides a kind of triangular wave generation systems, including pulse signal source and triangle wave generation device；
Pulse signal source is used for output data pulse signal；
Triangle wave generation device includes that module occurs for data pulse preprocessing module, jayrator time delay module and deformation；
Data pulse preprocessing module is used for for accessing data pulse signal to data pulse signal shaping, data
Pulse preprocessing module is also used to the data pulse signal after shaping being transmitted to jayrator time delay module；
Jayrator time delay module be used for according to after shaping data pulse signal export first phase signal to deform occur
The first input end of module, jayrator time delay module are used for according to the data pulse signal output second phase signal after shaping extremely
Second input terminal of module occurs for deformation, and there are phase differences with second phase signal for first phase signal；
The output end that module is used to occur according to first phase signal and second phase signal in deformation module occurs for deformation
Export triangular wave.
Above-mentioned triangular wave generation system, pulse signal source output data pulse signal to data pulse preprocessing module,
Data pulse preprocessing module carries out shaping to data pulse signal, to solve the overshoot that data pulse signal generates in the transmission
With pulse deformation problem, make it is shaped after data pulse signal impulse waveform it is stable, balanced.Further, jayrator is delayed
Module exports first phase signal and second phase signal to deformation according to the data pulse signal after shaping respectively and module occurs,
So that deformation occurs module and exports triangular wave.Wherein, according to phase difference existing between first phase signal and second phase signal,
Jayrator time delay module can also stability triangle wave pulsewidth and phase, with solve unstable pwm triangular wave, phase-unstable and
The problem of amplitude coincidence difference.Based on this, eliminate that waveform present in the triangular wave that deforms of data pulse signal is poor, width
Degree, which differs greatly, has drift and other issues with time point, improves the impulse waveform quality of triangular wave.
Detailed description of the invention
Fig. 1 is the triangle wave generation device function structure chart of an embodiment；
Fig. 2 is the triangle wave generation device function structure chart of another embodiment；
Fig. 3 is the triangle wave generation device circuit diagram of another embodiment；
Fig. 4 is the triangle wave generation device function structure chart of another embodiment；
Fig. 5 is the triangle wave generation device circuit diagram of another embodiment；
Fig. 6 is the triangle wave generation device function structure chart of a further embodiment；
Fig. 7 is the triangle wave generation device circuit diagram of a further embodiment；
Fig. 8 is the triangular wave generation system function structure chart of an embodiment.
Specific embodiment
Purpose, technical solution and technical effect for a better understanding of the present invention, below in conjunction with drawings and examples
Further explaining illustration is carried out to the present invention.State simultaneously, embodiments described below for explaining only the invention, not
For limiting the present invention.
The embodiment of the invention provides a kind of triangle wave generation devices.
Fig. 1 is the triangle wave generation device function structure chart of an embodiment, as shown in Figure 1, the triangle of an embodiment
Wave generation device includes that module 102 occurs for data pulse preprocessing module 100, jayrator time delay module 101 and deformation；
Data pulse preprocessing module 100 is used for for accessing data pulse signal Data_Input to data pulse
Signal Data_Input shaping, data pulse preprocessing module 100 are also used to the data pulse signal Data_ after shaping
Input is transmitted to jayrator time delay module 101；
Wherein, data pulse signal Data_Input refers in triangular wave deformation process, and signal frequency is higher than specific frequency
The pulse signal of rate.Data pulse preprocessing module 100 is receiving data pulse signal Data_Input, believes data pulse
Number Data_Input is pre-processed, i.e., shaping is carried out to data pulse signal Data_Input, to solve data pulse signal
The overshooting problem and pulse deformation problem that Data_Input is generated in the transmission.In a wherein embodiment, data pulse
Pulse shaper can be selected in preprocessing module 100.
In another embodiment, Fig. 2 is the triangle wave generation device function structure chart of another embodiment, such as Fig. 2
Shown, data pulse preprocessing module 100 includes isolated DC circuit 200, biasing circuit 201 and the first caching amplifying circuit
202；
The input terminal of isolated DC circuit 200 is for accessing data pulse signal Data_Input, isolated DC circuit 200
Output end be separately connected the input terminal and biasing circuit 201 of the first caching amplifying circuit 202；
Wherein, isolated DC circuit 200 is for the direct current signal in isolated data pulse signal Data_Input.Wherein
In one embodiment, capacitance or block isolating device is can be selected in isolated DC circuit 200.As a preferably embodiment, every
Capacitance is selected from DC circuit 200, to simplify isolated DC circuit 200, improves reliability.
The output end of first caching amplifying circuit 202 is for the data pulse signal Data_Input after output Shaping.
Wherein, the first caching amplifying circuit 202 is used to carry out shaping to data pulse signal Data_Input, solves data
The problem of over swing distortion present in pulse signal Data_Input and pulse deformation.Corresponding, biasing circuit 201 is for improving
The waveform shaping opsonizing capacity of first caching amplifying circuit 202.First caching amplifying circuit 202 in one of the embodiments,
NOR gate circuit can be selected or clamp bias circuit or auto bias circuit can be selected in caching amplifier, biasing circuit 201.
Fig. 3 is the triangle wave generation device circuit diagram of another embodiment, as shown in figure 3, isolated DC circuit 200 includes
Capacitance C1；
Wherein, one end of capacitance C1 is the input terminal of isolated DC circuit 200, the other end of capacitance C1 be every
Output end from DC circuit 200.
As shown in figure 3, biasing circuit 201 selects clamp bias circuit, including the first clamp resistance R1, the second clamp resistance
R2 and diode D1；The output end of the anode connection isolated DC circuit 200 of diode D1, the cathode of diode D1 are separately connected
The first end of the first end of first clamp resistance R1 and the second clamp resistance R2；The second end of first clamp resistance R1 is for accessing
The second end of logic high VCC, the second clamp resistance R2 are for being grounded.
Wherein, the first clamp resistance R1, the second clamp resistance R2 and diode D1 constitute clamp bias circuit, with realization pair
The high level clamp bias function of the output end of isolated DC circuit 200 preferably improves the wave of the first caching amplifying circuit 202
Shape shaping opsonizing capacity reduces the pulse misjudgment probability to data pulse signal Data_Input.
In one of the embodiments, as shown in figure 3, biasing circuit 201 further includes the first filter capacitor C2；
First filter capacitor C2 is connected in the first end and second end of the second clamp resistance R2 in parallel.
The the first filter capacitor C2 for being attempted by the both ends of the second clamp resistance R2 is selected, to reduce the high frequency in power supply VCC
Influence of the spine to data pulse signal Data_Input.Wherein, for prevent for reduce data pulse signal Data_Input
Overshoot inconsistent introduced waveform fluctuation influence, the first filter capacitor C2 should select the lesser capacitor of capacitance.
Select capacitance for the capacitor of 5.6pF as preferably embodiment, a first filter capacitor C2.
In one of the embodiments, as shown in figure 3, the first caching amplifying circuit 202 includes the first NOR gate circuit U1；
An input terminal of first NOR gate circuit U1 is the input terminal of the first caching amplifying circuit 202, the first XOR gate electricity
For another input terminal of road U1 for being grounded, the output end of the first NOR gate circuit U1 is the output of the first caching amplifying circuit 202
End.
Wherein, the first NOR gate circuit U1 can play the role of buffer amplifier, to data pulse signal Data_Input
Carry out shaping.
In one of the embodiments, as shown in figure 3, further including the second filter capacitor C3；
Second filter capacitor C3 is connected in the input terminal and output end of the first caching amplifying circuit 202 in parallel.
When the first caching amplifying circuit 202 selects the first NOR gate circuit U1, if the maximum of the first NOR gate circuit U1
Working frequency is too low, will lead to triangle wave generation device and has little time overturning generation triangular wave, if the first NOR gate circuit U1 is most
Big working frequency is too high, will lead to triangle wave generation device and is difficult to generate the pointed tooth of triangular wave.Based on this, the second filtering can be passed through
Capacitor C3 slows down the precipitous of the porch of data pulse signal Data_Input, in order to the edge of pulse needed for adapting to triangular wave
The steep on edge.
In one of the embodiments, as shown in figure 3, further including input resistance R3；
Wherein, an input terminal of the first NOR gate circuit U1 passes through the other end of input resistance R3 connection capacitance C1.
Jayrator time delay module 101 is used for according to the data pulse signal Data_Input output first phase letter after shaping
The first input end of module 102 occurs to deformation for number med1, and jayrator time delay module 101 is used for according to the data pulse after shaping
Signal Data_Input exports the second input terminal that module 102 occurs to deformation for second phase signal med2, first phase signal
There are phase differences with second phase signal med2 by med1；
Deformation occurs module 102 and is used to that mould to occur in deformation according to first phase signal med1 and second phase signal med2
The output end of block exports triangular wave.
Wherein, jayrator time delay module 101 by the data pulse signal Data_Input after shaping divide for two paths of signals it is defeated
Enter to deformation and module 102 occurs, the first phase signal med1 and second phase signal of module 102 occur including being input to deformation
med2.Wherein, there are phase differences between first phase signal med1 and second phase signal med2.One embodiment wherein
In, the phase of second phase signal med2 is ahead of first phase signal med1.Jayrator time delay module 101 passes through first phase
The pulse width of the triangular wave of the output end output of module 102 occurs for signal med1 and second phase signal med2, control deformation
And phase.
Fig. 4 is the triangle wave generation device function structure chart of another embodiment, such as Fig. 4 in one of the embodiments,
Shown, jayrator time delay module 101 includes the first delay circuit 300 and the second caching amplifying circuit 301；
For accessing the data pulse signal Data_Input after shaping, first prolongs the input terminal of first delay circuit 300
When circuit 300 output end connection second caching amplifying circuit 301 input terminal；
The output end of second caching amplifying circuit 301 is for exporting first phase signal med1；
Second phase signal med2 is the data pulse signal Data_Input after shaping.
Wherein, the first delay circuit 300 is used to play the data pulse signal Data_Input after shaping phase shift delay and make
With the phase of the data pulse signal Data_Input after changing shaping.First delay circuit in one of the embodiments,
300 optional phase shift delay circuits.Second caching amplifying circuit 301 plays the role of caching amplifier.An implementation wherein
In example, the second caching amplifying circuit 301 includes caching amplifier, NOR gate circuit, AND gate circuit, OR circuit or nor gate electricity
Road.
Fig. 5 is the triangle wave generation device circuit diagram of another embodiment in one of the embodiments, as shown in figure 5,
First delay circuit 300 includes the first time delay resistance R4 and the first delay capacitor C4；
One end of first time delay resistance R4 is the input terminal of the first delay circuit 300, the other end of the first time delay resistance R4
For the output end of the first delay circuit 300, the other end of the first time delay resistance R4 is used to be grounded by the first delay capacitor C4.
Wherein, the first delay circuit 300 is determined by the RC product number of the first time delay resistance R4 and the first delay capacitor C4
Time-delay characteristics, and the RC product number of the first time delay resistance R4 and the first delay capacitor C4 determines the pulse width of triangular wave.
In one of the embodiments, as shown in figure 5, the second caching amplifying circuit 301 includes the second NOR gate circuit U2；
An input terminal of second NOR gate circuit U2 is the input terminal of the second caching amplifying circuit 301, the second XOR gate electricity
For another input terminal of road U2 for being grounded, the output end of the second NOR gate circuit U2 is the output of the second caching amplifying circuit 301
End.
Wherein, the second NOR gate circuit U2 plays caching amplifier, while can generate time-lag action.It is corresponding, three
The time delay of the pulse width of angle the wave propagation delay time equal to the second NOR gate circuit U2 and the first delay circuit 300.As one
Preferably embodiment includes the first time delay resistance R4 and the first delay capacitor C4 in the first delay circuit 300, and second caches
When amplifying circuit 301 includes the second NOR gate circuit U2, the RC that should adjust the first time delay resistance R4 and the first delay capacitor C4 multiplies
Product so that the RC product number meet error rate it is the smallest under the conditions of, be equal to required triangular pulse width and the second exclusive or
The difference of the propagation delay time of gate circuit U2.
Fig. 6 is the triangle wave generation device function structure chart of a further embodiment, such as Fig. 6 in one of the embodiments,
Shown, jayrator time delay module 101 includes the second delay circuit 400, third caching amplifying circuit 401 and the 4th caching amplification electricity
Road 402；
For accessing the data pulse signal Data_Input after shaping, second prolongs the input terminal of second delay circuit 400
When circuit 400 output end connection third caching amplifying circuit 401 input terminal；
The output end of third caching amplifying circuit 401 is for exporting first phase signal med1；
The input terminal of 4th caching amplifying circuit 402 is used to access the data pulse signal Data_Input after shaping, the
The output end of four caching amplifying circuits 402 is for exporting second phase signal med2.
Wherein, the second delay circuit 400 is used to play the data pulse signal Data_Input after shaping phase shift delay and make
With the phase of the data pulse signal Data_Input after changing shaping.Second delay circuit in one of the embodiments,
400 optional phase shift delay circuits.Third caching amplifying circuit 401 plays the role of caching amplifier.An implementation wherein
In example, it includes caching amplifier, NOR gate circuit, AND gate circuit, OR circuit or nor gate electricity that third, which caches amplifying circuit 401,
Road.Corresponding, the 4th caching amplifying circuit 402 plays the role of caching amplifier.4th caching in one of the embodiments,
Amplifying circuit 402 includes caching amplifier, NOR gate circuit, AND gate circuit, OR circuit or OR-NOT circuit.
Fig. 7 is the triangle wave generation device circuit diagram of a further embodiment in one of the embodiments, as shown in fig. 7,
Second delay circuit 400 includes the second time delay resistance R5 and the second delay capacitor C5；
One end of second time delay resistance R5 is the input terminal of the second delay circuit 400, the other end of the second time delay resistance R5
For the output end of the second delay circuit 400, the other end of the second time delay resistance R5 is used to be grounded by the second delay capacitor C5.
Wherein, the second delay circuit 400 is determined by the RC product number of the second time delay resistance R5 and the second delay capacitor C5
Time-delay characteristics, and the RC product number of the second time delay resistance R5 and the second delay capacitor C5 determines the pulse width of triangular wave.
In one of the embodiments, as shown in fig. 7, third caching amplifying circuit 401 includes third NOR gate circuit U3；
An input terminal of third NOR gate circuit U3 is the input terminal that third caches amplifying circuit 401, third XOR gate electricity
For another input terminal of road U3 for being grounded, the output end of third NOR gate circuit U3 is the output that third caches amplifying circuit 401
End.
Wherein, third NOR gate circuit U3 plays caching amplifier, while can generate time-lag action.
In one of the embodiments, as shown in fig. 7, the 4th caching amplifying circuit 402 includes the 4th NOR gate circuit U4；
An input terminal of 4th NOR gate circuit U4 is the input terminal of the 4th caching amplifying circuit 402, the 4th XOR gate electricity
For another input terminal of road U4 for being grounded, the output end of the 4th NOR gate circuit U4 is the output of the 4th caching amplifying circuit 402
End.
Wherein, the 4th NOR gate circuit U4 plays caching amplifier, while can generate time-lag action.
It should be noted that the sum of the time delay of the first delay circuit of propagation delay time 300 of third NOR gate circuit U3, simultaneously
The difference of the sum of the time delay and the propagation delay time of the 4th NOR gate circuit U4 is equal to the pulse width of triangular wave.
It includes the 5th NOR gate circuit that module 102, which occurs, for deformation in one of the embodiments,；
One input terminal of the 5th NOR gate circuit is the first input end that module 102 occurs for deformation, the 5th NOR gate circuit
Another input terminal be module 102 occurs for deformation the second input terminal, the output end of the 5th NOR gate circuit is that mould occurs for deformation
The output end of block 102.
In another embodiment, it includes NAND gate circuit that module 102, which occurs, for deformation；
One input terminal of NAND gate circuit be deformation occur module 102 first input end, NAND gate circuit it is another defeated
Enter the second input terminal that module 102 occurs for deformation for end, the output end of NAND gate circuit is the output that module 102 occurs for deformation
End.
Wherein, module 102 occurs for deformation by selecting the 5th NOR gate circuit "AND" "OR" "NOT" circuit, makes jayrator delay mould
The signal that block 101 exports occurs module 102 in deformation and is deformed into triangular wave.
The triangle wave generation device of any of the above-described embodiment believes data pulse by data pulse preprocessing module 100
Number Data_Input carries out shaping, to solve the overshoot and pulse deformation that data pulse signal Data_Input is generated in the transmission
Problem, make it is shaped after data pulse signal Data_Input impulse waveform it is stable, balanced.Further, jayrator is delayed
Module 101 exports first phase signal med1 respectively according to the data pulse signal Data_Input after shaping and second phase is believed
Module 102 occurs to deformation for number med2, so that deformation occurs module 102 and exports triangular wave.Wherein, according to first phase signal
Existing phase difference between med1 and second phase signal med2, jayrator time delay module 101 can also stability triangle wave pulsewidth and
Phase, to solve the problems, such as that unstable pwm triangular wave, phase-unstable and amplitude coincidence are poor.Based on this, data arteries and veins is eliminated
Rush that waveform present in the triangular wave that signal Data_Input is deformed is poor, amplitude differs greatly there are the matter such as drift with time point
Amount problem improves the impulse waveform quality of triangular wave.
The embodiment of the invention also provides a kind of triangular wave generation systems.
Fig. 8 is the triangular wave generation system function structure chart of an embodiment, as shown in figure 8, the triangle of an embodiment
Wave generation system includes pulse signal source 10 and triangle wave generation device 11；
Pulse signal source 10 is used for output data pulse signal Data_Input；
Triangle wave generation device 11 includes that data pulse preprocessing module 100, jayrator time delay module 101 and deformation occur
Module 102；
Data pulse preprocessing module 100 is used for for accessing data pulse signal Data_Input to data pulse
Signal Data_Input shaping, data pulse preprocessing module 100 are also used to the data pulse signal Data_ after shaping
Input is transmitted to jayrator time delay module 101；
Jayrator time delay module 101 is used for according to the data pulse signal Data_Input output first phase letter after shaping
The first input end of module 102 occurs to deformation for number med1, and jayrator time delay module 101 is used for according to the data pulse after shaping
Signal Data_Input exports the second input terminal that module 102 occurs to deformation for second phase signal med2, first phase signal
There are phase differences with second phase signal med2 by med1；
Deformation occurs module 102 and is used to that mould to occur in deformation according to first phase signal med1 and second phase signal med2
The output end of block exports triangular wave.
Above-mentioned triangular wave generation system, 10 output data pulse signal Data_Input of pulse signal source to data pulse
Preprocessing module 100, data pulse preprocessing module 100 carries out shaping to data pulse signal Data_Input, to solve number
According to the pulse signal Data_Input overshoot generated in the transmission and pulse deformation problem, make it is shaped after data pulse signal
The impulse waveform of Data_Input is stable, balanced.Further, according between first phase signal med1 and second phase signal med2
Existing phase difference, jayrator time delay module 101 export first according to the data pulse signal Data_Input after shaping respectively
To deformation module 102 occurs for phase signal med1 and second phase signal med2, exports triangle so as to deform and module 102 occurs
Wave.Wherein, jayrator time delay module 101 can also stability triangle wave pulsewidth and phase, to solve, pwm triangular wave is unstable, phase
The unstable problem with amplitude coincidence difference in position.Based on this, the triangle that data pulse signal Data_Input is deformed is eliminated
Waveform present in wave is poor, amplitude differs greatly drift and other issues with time point, improves the impulse wave form quality of triangular wave
Amount.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (15)
1. a kind of triangle wave generation device, which is characterized in that including data pulse preprocessing module, jayrator time delay module and change
Module occurs for shape；
The data pulse preprocessing module is used for for accessing data pulse signal to the data pulse signal shaping,
The data pulse preprocessing module is also used to for the data pulse signal after shaping being transmitted to the jayrator delay mould
Block；
The jayrator time delay module is used for according to the data pulse signal output first phase signal after the shaping extremely
The first input end of module occurs for the deformation, and the jayrator time delay module is used for according to the data arteries and veins after the shaping
It rushes signal and exports the second input terminal that module occurs to the deformation for second phase signal, the first phase signal and described the
There are phase differences for two phase signal；
Module occurs for the deformation for occurring according to the first phase signal and the second phase signal in the deformation
The output end of module exports triangular wave.
2. triangle wave generation device according to claim 1, which is characterized in that the data pulse preprocessing module includes
Isolated DC circuit, biasing circuit and the first caching amplifying circuit；
The input terminal of the isolated DC circuit is for accessing the data pulse signal, the output end of the isolated DC circuit
It is separately connected the input terminal and the biasing circuit of the first caching amplifying circuit；
The output end of the first caching amplifying circuit is for exporting the data pulse signal after the shaping.
3. triangle wave generation device according to claim 2, which is characterized in that the isolated DC circuit includes blocking electricity
Hold.
4. triangle wave generation device according to claim 2, which is characterized in that the biasing circuit includes the first clamper electricity
Resistance, the second clamp resistance and diode；
The anode of the diode connects the output end of the isolated DC circuit, and the cathode of the diode is separately connected described
The first end of the first end of first clamp resistance and second clamp resistance；
The second end of first clamp resistance is for accessing logic high, and the second end of second clamp resistance is for connecing
Ground.
5. triangle wave generation device according to claim 2, which is characterized in that the first caching amplifying circuit includes the
One NOR gate circuit；
One input terminal of first NOR gate circuit is the input terminal of the first caching amplifying circuit, first XOR gate
For another input terminal of circuit for being grounded, the output end of first NOR gate circuit is the defeated of the first caching amplifying circuit
Outlet.
6. triangle wave generation device according to claim 2, which is characterized in that further include the second filter capacitor；
Second filter capacitor is connected in the input terminal and output end of the first caching amplifying circuit in parallel.
7. triangle wave generation device according to claim 1, which is characterized in that the jayrator time delay module includes first
Delay circuit and the second caching amplifying circuit；
The input terminal of first delay circuit is for accessing the data pulse signal after the shaping, first delay
The output end of circuit connects the input terminal of the second caching amplifying circuit；
The output end of the second caching amplifying circuit is for exporting the first phase signal；
The second phase signal is the data pulse signal after the shaping.
8. triangle wave generation device according to claim 7, which is characterized in that first delay circuit prolongs including first
When resistance and the first delay capacitor；
One end of first time delay resistance is the input terminal of first delay circuit, the other end of first time delay resistance
For the output end of first delay circuit, the other end of first time delay resistance by first delay capacitor for being connect
Ground.
9. triangle wave generation device according to claim 7, which is characterized in that the second caching amplifying circuit includes the
Two NOR gate circuits；
One input terminal of second NOR gate circuit is the input terminal of the second caching amplifying circuit, second XOR gate
For another input terminal of circuit for being grounded, the output end of second NOR gate circuit is the defeated of the second caching amplifying circuit
Outlet.
10. triangle wave generation device according to claim 1, which is characterized in that the jayrator time delay module includes the
Two delay circuits, third caching amplifying circuit and the 4th caching amplifying circuit；
The input terminal of second delay circuit is for accessing the data pulse signal after the shaping, second delay
The output end of circuit connects the input terminal of the third caching amplifying circuit；
The output end of the third caching amplifying circuit is for exporting the first phase signal；
The input terminal of the 4th caching amplifying circuit is for accessing the data pulse signal after the shaping, and the described 4th
The output end of caching amplifying circuit is for exporting the second phase signal.
11. triangle wave generation device according to claim 10, which is characterized in that second delay circuit includes second
Time delay resistance and the second delay capacitor；
One end of second time delay resistance is the input terminal of second delay circuit, the other end of second time delay resistance
For the output end of second delay circuit, the other end of second time delay resistance by second delay capacitor for being connect
Ground.
12. triangle wave generation device according to claim 10, which is characterized in that the third caches amplifying circuit and includes
Third NOR gate circuit；
One input terminal of the third NOR gate circuit is the input terminal that the third caches amplifying circuit, the third XOR gate
For another input terminal of circuit for being grounded, the output end of the third NOR gate circuit is that the third caches the defeated of amplifying circuit
Outlet.
13. triangle wave generation device according to claim 10, which is characterized in that the described 4th, which caches amplifying circuit, includes
4th NOR gate circuit；
One input terminal of the 4th NOR gate circuit is the input terminal of the 4th caching amplifying circuit, the 4th XOR gate
For another input terminal of circuit for being grounded, the output end of the 4th NOR gate circuit is the defeated of the 4th caching amplifying circuit
Outlet.
14. triangle wave generation device according to claim 1, which is characterized in that it includes the 5th that module, which occurs, for the deformation
NOR gate circuit；
One input terminal of the 5th NOR gate circuit is the first input end that module occurs for the deformation, the 5th XOR gate
Another input terminal of circuit is the second input terminal that module occurs for the deformation, and the output end of the 5th NOR gate circuit is institute
State the output end that module occurs for deformation.
15. a kind of triangular wave generation system, which is characterized in that including pulse signal source and triangle wave generation device；
The pulse signal source is used for output data pulse signal；
The triangle wave generation device includes that module occurs for data pulse preprocessing module, jayrator time delay module and deformation；
The data pulse preprocessing module is used for for accessing data pulse signal to the data pulse signal shaping,
The data pulse preprocessing module is also used to for the data pulse signal after shaping being transmitted to the jayrator delay mould
Block；
The jayrator time delay module is used for according to the data pulse signal output first phase signal after the shaping extremely
The first input end of module occurs for the deformation, and the jayrator time delay module is used for according to the data arteries and veins after the shaping
It rushes signal and exports the second input terminal that module occurs to the deformation for second phase signal, the first phase signal and described the
There are phase differences for two phase signal；
Module occurs for the deformation for occurring according to the first phase signal and the second phase signal in the deformation
The output end of module exports triangular wave.
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