CN108880511A - Pulse signal generation device and method - Google Patents
Pulse signal generation device and method Download PDFInfo
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- CN108880511A CN108880511A CN201810654954.2A CN201810654954A CN108880511A CN 108880511 A CN108880511 A CN 108880511A CN 201810654954 A CN201810654954 A CN 201810654954A CN 108880511 A CN108880511 A CN 108880511A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/156—Arrangements in which a continuous pulse train is transformed into a train having a desired pattern
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K2005/00013—Delay, i.e. output pulse is delayed after input pulse and pulse length of output pulse is dependent on pulse length of input pulse
- H03K2005/00019—Variable delay
- H03K2005/00058—Variable delay controlled by a digital setting
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Abstract
The application provides a kind of pulse signal generation device and method.Described device includes the impulse generating unit being electrically connected and delay extraction unit.Impulse generating unit is for generating inceptive impulse signal.Extraction unit be delayed for receiving relevant to inceptive impulse signal the first pulse signal and the second pulse signal, and according between the first pulse signal and the second pulse signal delay and the first pulse signal and the second pulse signal generation target impulse signal.Wherein, the first pulse signal and the second pulse signal are equal to the width of inceptive impulse signal, and the width of target impulse signal is less than the width of inceptive impulse signal.It can directly be utilized by above-mentioned apparatus in the presence of delay and the target impulse signal of the first pulse signal of same size and the second pulse signal generation narrower width can still obtain the pulse signal of narrower width as a result, on the basis of not using high performance device.
Description
Technical field
This application involves fields of communication technology, in particular to a kind of pulse signal generation device and method.
Background technique
In the use process of electronic equipment, it is often necessary to narrow pulse signal.Currently, mainly being produced using high performance device
Raw narrow pulse signal, but use high performance device cost can be relatively high.
Summary of the invention
In view of this, the embodiment of the present application is designed to provide a kind of pulse signal generation device and method.
In a first aspect, the embodiment of the present application provides a kind of pulse signal generation device, described device includes being electrically connected
Impulse generating unit and delay extraction unit；The impulse generating unit, for generating inceptive impulse signal；The delay is extracted
Unit, for receiving relevant to the inceptive impulse signal the first pulse signal and the second pulse signal, and according to described the
Delay and first pulse signal and second pulse signal between one pulse signal and second pulse signal produce
Raw target impulse signal, wherein the width of first pulse signal and the second pulse signal is equal to the inceptive impulse signal
Width, the width of the target impulse signal is less than the width of the inceptive impulse signal.Without using high performance device
In the case of, believed according to the pulse that the delay between two pulse signals and two pulse signals of same size generates narrower width
Number, it is possible thereby to reduce cost.
Further, the embodiment provided with reference to the above first aspect, described device further include delay unit, the delay
Unit includes wire jumper subelement；The impulse generating unit and the delay extraction unit are electrically connected, so that the delay mentions
Unit is taken to obtain the inceptive impulse signal；The wire jumper subelement and the impulse generating unit and the delay extraction unit
It is electrically connected, the wire jumper subelement is used to be delayed to obtain to the inceptive impulse signal the first feedback signal, and by institute
It states the first feedback signal and is sent to the delay extraction unit, wherein the inceptive impulse signal is believed as first pulse
Number, first feedback signal is as second pulse signal.It is realized using wire jumper subelement to the inceptive impulse signal
Delay, extract inceptive impulse signal and the delay after the delay of wire jumper subelement between obtained the first feedback signal, and base
The target impulse signal of narrower width is obtained in the delay and inceptive impulse signal, the first feedback signal, is thereby guaranteed that at low cost
And the width of obtained target impulse signal is narrower than the width of inceptive impulse signal.
Further, the embodiment provided with reference to the above first aspect, described device further include delay unit, the delay
Unit includes wire jumper subelement and coiling subelement；The wire jumper subelement and the impulse generating unit and the delay are extracted
Unit is electrically connected, and the wire jumper subelement is used to be delayed to obtain the first feedback signal to the inceptive impulse signal, and
First feedback signal is sent to the delay extraction unit；The coiling subelement and the wire jumper subelement and described
The extraction unit that is delayed is electrically connected, and the coiling subelement is used for the inceptive impulse sent via the wire jumper subelement
Signal is delayed to obtain the second feedback signal, and second feedback signal is sent to the delay extraction unit, wherein
First feedback signal is as first pulse signal, and second feedback signal is as second pulse signal.Benefit
The first feedback signal is obtained to the delay of the inceptive impulse signal with the realization of wire jumper subelement, utilizes the realization pair of coiling subelement
The delay of the inceptive impulse signal sent via wire jumper subelement obtains the second feedback signal, extracts the first feedback signal and second
The delay of feedback signal, and then the target arteries and veins of narrower width is obtained based on the delay and the first feedback signal, the second feedback signal
Signal is rushed, thereby guarantees that at low cost, and the width of obtained target impulse signal is narrower than the width of inceptive impulse signal.Its
In, the width of the target impulse signal obtained at this time and the target pulse obtained based on inceptive impulse signal and the first feedback signal
Signal it is of different size.
Further, the embodiment provided with reference to the above first aspect, described device further include delay unit and delay choosing
Select unit；The impulse generating unit and the delay selection unit are electrically connected, so that the delay selection unit obtains institute
State inceptive impulse signal；The delay unit and the impulse generating unit and the delay selection unit are electrically connected, described
Delay unit is used to carry out delay process to the inceptive impulse signal, obtains multiple feedback signals, and by the multiple feedback
Signal is sent to the delay selection unit；The delay selection unit is used for from the received inceptive impulse signal and described
Select two signals as first pulse signal and second pulse signal in multiple feedback signals, and by described first
Pulse signal and second pulse signal are sent to the delay extraction unit.It can be with target impulse signal actually required
Width selects two signals from inceptive impulse signal and multiple feedback signals, to generate target impulse signal, so that
Described device can produce different target impulse signals.
Further, the embodiment provided with reference to the above first aspect, the delay unit include wire jumper subelement and around
Line subelement；The wire jumper subelement and the impulse generating unit and delay selection unit are electrically connected, and wire jumper is single
First feedback signal is sent to institute for being delayed to obtain the first feedback signal to the inceptive impulse signal by member
State delay selection unit；The coiling subelement and the wire jumper subelement and the delay selection unit are electrically connected, described
Coiling subelement to the inceptive impulse signal sent via the wire jumper subelement for being delayed to obtain the second feedback
Signal, and second feedback signal is sent to the delay selection unit.
Further, the embodiment provided with reference to the above first aspect, the delay selection unit are described first for selecting
Initial pulse signal as first pulse signal, first feedback signal as second pulse signal, alternatively, selection
First feedback signal as first pulse signal, second feedback signal as second pulse signal, and
First pulse signal and second pulse signal are sent to the delay extraction unit.
Further, the embodiment provided with reference to the above first aspect, described device further include mask register；The choosing
It selects register and the delay selection unit is electrically connected, the mask register is for controlling the delay selection unit from institute
It states and selects the inceptive impulse signal or selection first feedback signal in inceptive impulse signal and first feedback signal
As first pulse signal, second feedback letter is selected from first feedback signal and second feedback signal
Number be used as second pulse signal.
Further, the embodiment provided with reference to the above first aspect, described device further include trigger register；The touching
It sends out register and the impulse generating unit is electrically connected, the trigger register is generated for controlling the impulse generating unit
The inceptive impulse signal.
Further, the embodiment provided with reference to the above first aspect, described device further include output unit；The output
Unit and the delay extraction unit are electrically connected, and the output unit is used for according to the output of preconfigured output electric current
Target impulse signal.It is configured by the output electric current in advance to output pin, it is ensured that the quality of target impulse signal.
Second aspect, the embodiment of the present application provide a kind of pulse signal production method, the method includes：Generate initial arteries and veins
Rush signal；Obtain the first pulse signal relevant to the inceptive impulse signal and the second pulse signal, wherein first arteries and veins
The width for rushing signal and the second pulse signal is equal to the width of the inceptive impulse signal；Obtain first pulse signal and institute
State the delay between the second pulse signal；It is generated based on the delay and first pulse signal and second pulse signal
Target impulse signal, wherein the width of inceptive impulse signal described in the width of the target impulse signal.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is one of the schematic diagram of pulse signal generation device provided by the embodiments of the present application.
Fig. 2 is the schematic diagram of target impulse signal provided by the embodiments of the present application.
Fig. 3 is the two of the schematic diagram of pulse signal generation device provided by the embodiments of the present application.
Fig. 4 is the three of the schematic diagram of pulse signal generation device provided by the embodiments of the present application.
Fig. 5 is the four of the schematic diagram of pulse signal generation device provided by the embodiments of the present application.
Fig. 6 is the five of the schematic diagram of pulse signal generation device provided by the embodiments of the present application.
Fig. 7 is the flow diagram of pulse signal production method provided by the embodiments of the present application.
Icon：100- pulse signal generation device；110- impulse generating unit；120- delay extraction unit；130- delay
Selecting unit；140- wire jumper subelement；150- coiling subelement；160- mask register；170- trigger register.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Ground description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Usually exist
The component of the embodiment of the present application described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on embodiments herein, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Fig. 1 is please referred to, Fig. 1 is one of the schematic diagram of pulse signal generation device 100 provided by the embodiments of the present application.It is described
Pulse signal generation device 100 includes the impulse generating unit 110 being electrically connected and delay extraction unit 120.The pulse hair
Raw unit 110 is for generating inceptive impulse signal, and the delay extraction unit 120 is for receiving and the inceptive impulse signal phase
The first pulse signal and the second pulse signal closed, and according between first pulse signal and second pulse signal
Delay, first pulse signal, the second pulse signal generate the lesser target impulse signal of new width.It does not need as a result,
The relatively high high performance device of use cost, still available narrow pulse signal, for example, obtaining the pulse that width is 1~5ns
Signal.Wherein, the specific width of narrow pulse signal is related to the delay of extraction, therefore can the narrow arteries and veins of target according to actual needs
Delay between first pulse signal and second pulse signal is arranged in the width for rushing signal.
It optionally, include a counter in the impulse generating unit 110, when needing to generate pulse signal, the arteries and veins
Inceptive impulse signal can be generated according to the counter set by rushing generating unit 110.Wherein, the width of the inceptive impulse signal
The specific value of degree is related to the setting numerical value of counter in the impulse generating unit 110.First pulse signal
Width, the width of second pulse signal are of same size with the inceptive impulse signal.
Referring to figure 2., Fig. 2 is the schematic diagram of target impulse signal provided by the embodiments of the present application.The second pulse letter
There is delay in number relatively described first pulse signal.The delay extraction unit 120 is by first pulse signal and the second arteries and veins
It rushes signal to be compared, the target impulse signal can be obtained in the part for being combined into delay.
First embodiment
Referring to figure 3., Fig. 3 is the two of the schematic diagram of pulse signal generation device 100 provided by the embodiments of the present application.It is described
Pulse signal generation device 100 can also include delay unit, and the delay unit includes wire jumper subelement 140.The pulse
Generating unit 110 and the delay extraction unit 120 are electrically connected, so that the delay extraction unit 120 obtains the pulse
The inceptive impulse signal that generating unit 110 generates.The wire jumper subelement 140 and the impulse generating unit 110 and institute
It states delay extraction unit 120 to be electrically connected, the wire jumper subelement 140 is used for after obtaining the inceptive impulse signal, to institute
It states inceptive impulse signal to be delayed to obtain the first feedback signal, and first feedback signal is sent to the delay and is extracted
Unit 120.The delay extraction unit 120 obtains the inceptive impulse signal and first feedback signal as a result,.
The inceptive impulse signal is as first pulse signal, and first feedback signal is as second pulse
Signal.The delay extraction unit 120 is according to the delay, described between first pulse signal and second pulse signal
First pulse signal and second pulse signal generate the target impulse signal, that is, 120 basis of delay extraction unit
Delay and the inceptive impulse signal between the inceptive impulse signal and first feedback signal, first feedback letter
Number generate the target impulse signal.
Optionally, the wire jumper subelement 140 may include wire jumper, the first pin P1 and the second pin P2.Described second
Pin P2 and the delay extraction unit 120 are electrically connected.The first pin P1 electrically connects with the impulse generating unit 110
It connects, and is electrically connected by the wire jumper and the second pin P2.The initial arteries and veins is generated in the impulse generating unit 110
After rushing signal, the inceptive impulse signal is exported from the first pin P1, and via the wire jumper and the second pin P2
Transmission, the delay extraction unit 120 obtains first feedback signal inputted by the second pin P2 as a result,.At this point,
The width of the target impulse signal, i.e., the delay between the described inceptive impulse signal and first feedback signal, mainly by
The input time delay composition for exporting delay, the transmission delay of the wire jumper and the second pin P2 of the first pin P1.
Optionally, the wire jumper can not be the short-circuit line of 0 delay, and described wire jumper itself can be due to transmission and to described first
Initial pulse signal is delayed, that is to say, that the transmission delay of the wire jumper is not 0, at this time the width of the target impulse signal
Degree is by the output delay of the first pin P1, the input time delay group of the transmission delay of the wire jumper and the second pin P2
At.The wire jumper can also be the short-circuit line of 0 delay, that is to say, that the transmission delay of the wire jumper is 0, at this time the target
The width of pulse signal is made of the output delay of the first pin P1 and the input time delay of the second pin P2.
Optionally, the first pin P1 and the delay extraction unit 120 are electrically connected, the impulse generating unit
110 are electrically connected between the first pin P1 and the delay extraction unit 120.The inceptive impulse signal is divided into two
Road, the first via are sent directly to the delay extraction unit 120；Second tunnel is exported through the first pin P1, passes through the jump
Line feeds back to the delay extraction unit 120 from the second pin P2.The delay extraction unit 120 obtains described as a result,
Inceptive impulse signal and first feedback signal.
Second embodiment
Referring to figure 4., Fig. 4 is the three of the schematic diagram of pulse signal generation device 100 provided by the embodiments of the present application.It is described
Pulse signal generation device 100 can also include delay unit, and the delay unit includes that wire jumper subelement 140 and coiling are single
Member 150.The wire jumper subelement 140 is electrically connected with the impulse generating unit 110 and the delay extraction unit 120, institute
Wire jumper subelement 140 is stated for after obtaining the inceptive impulse signal, is delayed to obtain the to the inceptive impulse signal
One pulse signal, and first pulse signal is sent to the delay extraction unit 120.The delay is extracted single as a result,
Member 120 obtains first feedback signal.
The coiling subelement 150 is electrically connected with the wire jumper subelement 140 and the delay extraction unit 120.Institute
Coiling subelement 150 is stated for being delayed after obtaining the inceptive impulse signal sent through the wire jumper subelement 140
The second feedback signal is obtained, and second feedback signal is sent to the delay extraction unit 120.The delay as a result,
Extraction unit 120 obtains first feedback signal and second feedback signal.
First feedback signal is as first pulse signal, and second feedback signal is as second pulse
Signal.The delay extraction unit 120 is according to the delay, described between first pulse signal and second pulse signal
First pulse signal and second pulse signal generate the target impulse signal, that is, 120 basis of delay extraction unit
Delay and first feedback signal between first feedback signal and second feedback signal, second feedback letter
Number generate the target impulse signal.Wherein, the delay due to the wire jumper subelement 140 generation and the coiling subelement
The 150 delay differences generated, therefore, the mesh obtained in the width of the target impulse signal obtained at this time and first embodiment above
Mark the of different size of pulse signal.
Optionally, the wire jumper subelement 140 may include wire jumper, the first pin P1 and the second pin P2.Described first
Pin P1 and the impulse generating unit 110 are electrically connected, and are electrically connected by the wire jumper and the second pin P2.?
After the impulse generating unit 110 generates the inceptive impulse signal, the inceptive impulse signal is defeated from the first pin P1
Out, and via the wire jumper and the second pin P2 it transmits.The delay extraction unit 120 is obtained by described second as a result,
First feedback signal of pin P2 input.
Optionally, the coiling subelement 150 may include coiling and third pin P3.Wherein, the first pin P1
As output pin, the second pin P2 and the third pin P3 are as input pin.One end of the coiling with it is described
Wire jumper subelement 140 is electrically connected, another to obtain the inceptive impulse signal sent via the wire jumper subelement 140
End is electrically connected via the third pin P3 and the delay extraction unit 120.
In an embodiment of the present embodiment, the coiling subelement 150 is received single via wire jumper
The inceptive impulse signal that member 140 is sent is first feedback signal.At this point, the width of the target impulse signal, i.e.,
Delay between first pulse signal and second pulse signal, mainly by coiling in the coiling subelement 150
The input time delay of transmission delay and third pin P3 determine.
In the another embodiment of the present embodiment, the coiling can be with the wire jumper far from the first pin P1
One end be directly electrically connected, described in what the coiling subelement 150 obtained at this time send via the wire jumper subelement 140
Inceptive impulse signal does not pass through the second pin P2.The coiling and the wire jumper can also be connected to second pipe simultaneously
The same side of foot P2 is electrically connected with realizing.Of course, it should be understood that can also realize by other means will be by the jump
The inceptive impulse signal of line output is sent to the coiling.
In the case where wire jumper and coiling are directly electrically connected, due to the input time delay and third pipe of the second pin P2
The input time delay of foot P3 is essentially identical, and transmission delay can offset and ignore, therefore, the width of the target impulse signal
Degree, i.e., the delay between described first pulse signal and second pulse signal, mainly by the coiling subelement 150 around
The transmission delay of line determines.Wherein it is possible to which the width of target impulse signal as needed is chosen described in different coiling conducts
Coiling in coiling subelement 150.Optionally, the coiling can be a coiling delay PCB (Printed Circuit
Board, printed circuit board) plate.
Further, the width for the ease of narrow pulse signal as needed determines the length of coiling, and institute can be set
State the short-circuit line that wire jumper is 0 delay.
3rd embodiment
Referring to figure 5., Fig. 5 is the four of the schematic diagram of pulse signal generation device 100 provided by the embodiments of the present application.It is described
Pulse signal generation device 100 can also include delay unit and delay selection unit 130.The impulse generating unit 110 with
The delay selection unit 130 is electrically connected, so that the delay selection unit 130 obtains the impulse generating unit 110 and produces
The raw inceptive impulse signal.130 electricity of the delay unit and the impulse generating unit 110 and the delay selection unit
Property connection, the delay unit be used for the inceptive impulse signal carry out delay process, obtain multiple and different feedback signals,
And multiple feedback signals are sent to the delay selection unit 130.
The delay selection unit 130 from the received inceptive impulse signal and the multiple feedback signal for selecting
Two signals are selected as first pulse signal and second pulse signal, and by first pulse signal and described
Two pulse signals are sent to the delay extraction unit 120.Thus, it is possible to the width of target impulse signal according to actual needs
Select two signals corresponding with demand from the inceptive impulse signal and the multiple feedback signal, and then based on selecting
Two signals generate target impulse signal.
In the present embodiment, the delay unit includes wire jumper subelement 140 and coiling subelement 150.Wire jumper
Unit 140 and the impulse generating unit 110 and the delay selection unit 130 are electrically connected, and the wire jumper subelement 140 is used
In being delayed to obtain the first feedback signal to the inceptive impulse signal, and first feedback signal is sent to described prolong
When selecting unit 130.The coiling subelement 150 electrically connects with the wire jumper subelement 140 and the delay selection unit 130
It connects, the coiling subelement 150 is for being delayed to the inceptive impulse signal sent via the wire jumper subelement 140
The second feedback signal is obtained, and second feedback signal is sent to the delay selection unit 130.The delay as a result,
Selecting unit 130 obtains first feedback signal and second feedback signal.Wherein, it is obtained about by the delay unit
The description for obtaining first feedback signal and second feedback signal is referred to the description in second embodiment.
Optionally, the first pin P1 and the delay selection unit 130 are electrically connected, the impulse generating unit
110 are electrically connected between the first pin P1 and the delay selection unit 130.The inceptive impulse signal is divided into two
Road, the first via are sent directly to the delay selection unit 130.Second tunnel is exported through the first pin P1, passes through the jump
Line feeds back to the delay selection unit 130 from the second pin P2.Second tunnel is exported through the first pin P1, passes through institute
It states wire jumper and the coiling and feeds back to the delay selection unit 130 from the third pin P2.It is described to prolong by above-mentioned setting
When selecting unit 130 can get the inceptive impulse signal, first feedback signal and second feedback signal.
In the present embodiment, the delay selection unit 130 is for selecting the inceptive impulse signal as described first
Pulse signal, first feedback signal are as second pulse signal, alternatively, selecting first feedback signal as institute
The first pulse signal, second feedback signal are stated as second pulse signal, and by first pulse signal and institute
It states the second pulse signal and is sent to the delay extraction unit 120.It is obtained simultaneously in the delay selection unit 130 described initial
It, can narrow pulse signal according to actual needs when pulse signal, first feedback signal and second feedback signal
Width makes the selection of delay selection unit 130 by the inceptive impulse signal and first feedback signal, alternatively, by institute
It states the first feedback signal and second feedback signal is sent to the delay extraction unit 120 simultaneously.As a result, being changed without
On the basis of stating 100 device of pulse signal generation device, two kinds of different in width can be obtained by the delay selection unit 130
Narrow pulse signal.
Fig. 6 is please referred to, Fig. 6 is the five of the schematic diagram of pulse signal generation device 100 provided by the embodiments of the present application.It is described
Pulse signal generation device 100 can also include mask register 160.The mask register 160 and the delay selection list
Member 130 is electrically connected, and the mask register 160 is for controlling the delay selection unit 130 from the inceptive impulse signal
With select the inceptive impulse signal in first feedback signal or select first feedback signal as first arteries and veins
Signal is rushed, selects second feedback signal as described second from first feedback signal and second feedback signal
Pulse signal.That is, the mask register 160 control the delay selection unit 130 selection by the inceptive impulse signal and
First feedback signal is sent to the delay extraction unit as first pulse signal and second pulse signal
120, alternatively, selecting first feedback signal and second feedback signal as first pulse signal and described second
Pulse signal is sent to the delay extraction unit 120.
It is alternatively possible to be deposited by CPU (Central Processing Unit, central processing unit) to the selection
Device 160 is configured, and selects first pulse to control the delay selection unit 130 through the mask register 160
Signal and second pulse signal.
Optionally, the mask register 160 also can control the pulse that the delay selection unit 130 is chosen with needed
Corresponding two signals of signal width, for example, select the inceptive impulse signal and second feedback signal be sent to it is described
Delay extraction unit 120 or select the inceptive impulse signal and first feedback signal is sent to the delay extraction
Unit 120 or select first feedback signal and second feedback signal is sent to the delay extraction unit 120.
The pulse signal generation device 100 includes that (Complex Programmable Logic Device is answered CPLD
Miscellaneous programmable logic device), wire jumper and coiling.Under normal circumstances, right to generate the narrow pulse signal that width is 1~5ns
The clock frequency answered is 200Mhz~1Ghz, and the working frequency of common CPLD is extremely difficult to 200Mhz, be cannot meet the needs.
And in the present embodiment, the inherent delay or the external delay line that is shorted exported using CPLD pin can produce corresponding arteries and veins
Thus width can get the narrow pulse signal of 1~5ns or so.
On the basis of the above embodiments, the pulse signal generation device 100 can also include trigger register 170.
The trigger register 170 is electrically connected with the impulse generating unit 110, and the trigger register 170 is described for controlling
Impulse generating unit 110 generates the inceptive impulse signal.It is alternatively possible to be set by CPU to trigger register 170
It sets, generates the inceptive impulse signal to control the impulse generating unit 110 by the trigger register 170.For example, institute
A rising signals can be generated to the impulse generating unit 110 according to the order of CPU by stating trigger register 170, be made described
Impulse generating unit 110 generates the low pulse signal of a fixed width.
In the present embodiment, the pulse signal generation device 100 can also include output unit.The output unit with
The delay extraction unit 120 is electrically connected, and the output unit is used to export the mesh according to preconfigured output electric current
Mark pulse signal.It is configured by the output electric current in advance to output unit, it is ensured that the quality of target impulse signal.Its
In, the output unit includes output pin Po.
The pulse signal generation device 100 is illustrated below with reference to Fig. 6.Wherein, the wire jumper is 0 delay
Short-circuit line.
When needing the pulsewidth width of 5ns or so, it is 0 that the mask register 160 can be arranged by CPU, then makes institute
It states trigger register 170 and triggers the inceptive impulse signal that one width of the generation of impulse generating unit 110 is 20ns.This is initial
Pulse signal is exported from the first pin P1, inputs to the delay selection unit 130 through the wire jumper and the second pin P2,
Thus the delay selection unit 130 obtains the first feedback signal.In the choosing for controlling the delay selection unit 130
It selects in the case that register 160 is arranged to 0, the delay selection unit 130 is by the inceptive impulse signal and described first
Feedback signal is sent to the delay extraction unit 120.The delay extraction unit 120 inceptive impulse signal and anti-
First feedback signal of feedback, the part for being combined into delay are exported to output pin Po, and thus the pulse signal generates dress
Set 100 generation target impulse signals.When using Lattice LCMXO640C CPLD, delay width is about 5ns.
When needing to be less than the pulsewidth width of 5ns, for example, need 1~4ns pulsewidth width, can be arranged by CPU described in
Mask register 160 is 1, then so that the trigger register 170 is triggered the impulse generating unit 110 and generate a width
The inceptive impulse signal of 20ns.The initial arteries and veins pulse signal is exported from the first pin P1, all the way through the wire jumper and described second
Pin P2 inputs to the delay selection unit 130, so that the delay selection unit 130 obtains the first feedback signal；It is another
Road inputs to the delay selection unit 130 through the wire jumper, coiling and the third pin P3, so that the delay selection list
Member 130 obtains the second feedback signal.It is set in the mask register 160 for controlling the delay selection unit 130
In the case where 1, first feedback signal and second feedback signal are sent to described by the delay selection unit 130
Be delayed extraction unit 120.The delay extraction unit 120, which compares, is fed back obtained first feedback signal and the second feedback
Signal, the part for being combined into delay are exported to output pin Po, and thus the pulse signal generation device 100 generates target pulse
Signal.Delay width is mainly determined by the length of coiling at this time, and by using the coiling of different length, can produce width is 1
The pulse signal of~4ns.
Fig. 7 is please referred to, Fig. 7 is the flow diagram of pulse signal production method provided by the embodiments of the present application.It is right below
Pulse signal production method is illustrated.
Step S110 generates inceptive impulse signal.
Step S120 obtains the first pulse signal relevant to the inceptive impulse signal and the second pulse signal.
Wherein, the width of first pulse signal, the width of the second pulse signal are equal to the inceptive impulse signal
Width.
Step S130 obtains the delay between first pulse signal and second pulse signal.
Step S140 generates target pulse based on the delay and first pulse signal and second pulse signal
Signal.
Wherein, the width of the target impulse signal is less than the width of the inceptive impulse signal.
Inceptive impulse signal is obtained first, then obtains relevant to the inceptive impulse signal the first pulse signal and the
Two pulse signals.Wherein, the width of first pulse signal and second pulse signal with the inceptive impulse signal
It is of same size, first pulse signal and the second signal and the inceptive impulse signal have different delays.It mentions
The delay component between first pulse signal and second pulse signal is taken, to generate target impulse signal.It is described
The width of target impulse signal is less than the width of the inceptive impulse signal.It does not need as a result, using high performance device, according to depositing
In delay and the pulse signal of narrower width can be obtained in two pulse signals of same size.
In conclusion the application provides a kind of pulse signal generation device and method.Described device includes being electrically connected
Impulse generating unit and delay extraction unit.Impulse generating unit is for generating inceptive impulse signal.The delay extraction unit
Extract the delay portion between received the first pulse signal relevant with the inceptive impulse signal and second pulse signal
Point, and then generate target impulse signal.Wherein, the width of first pulse signal and second pulse signal is equal to described
The width of inceptive impulse signal, the width of the target impulse signal are less than the width of the inceptive impulse signal.As a result, not
In the case where using high performance device, generated according to the delay between two pulse signals and two pulse signals of same size
The pulse signal of narrower width, it is possible thereby to reduce cost.
Further, described device includes multiple pins, the inceptive impulse signal that the impulse generating unit generates
Delay selection unit is fed back to from different pins, and the width of delay selection unit pulse signal as needed is from reception
Inceptive impulse signal and feedback signal in select two signals as first pulse signal and second pulse signal.?
It is changed without on the basis of device, the pulse signal of different length can be generated by the control to the delay selection unit.
Further, described device further includes output unit, can optimization aim by adjusting the output electric current of output unit
The signal quality of pulse signal.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of pulse signal generation device, which is characterized in that described device includes the impulse generating unit being electrically connected and prolongs
When extraction unit；
The impulse generating unit, for generating inceptive impulse signal；
The delay extraction unit, for receiving the first pulse signal relevant to the inceptive impulse signal and the second pulse letter
Number, and according to delay and first pulse signal between first pulse signal and second pulse signal and described
Second pulse signal generates target impulse signal, wherein the width of first pulse signal and the second pulse signal is equal to institute
The width of inceptive impulse signal is stated, the width of the target impulse signal is less than the width of the inceptive impulse signal.
2. the apparatus according to claim 1, which is characterized in that described device further includes delay unit, the delay unit
Including wire jumper subelement；
The impulse generating unit and the delay extraction unit are electrically connected, so that delay extraction unit acquisition is described just
Initial pulse signal；
The wire jumper subelement and the impulse generating unit and the delay extraction unit are electrically connected, the wire jumper subelement
For being delayed to obtain the first feedback signal to the inceptive impulse signal, and first feedback signal is sent to described
Be delayed extraction unit, wherein the inceptive impulse signal is as first pulse signal, and first feedback signal is as institute
State the second pulse signal.
3. the apparatus according to claim 1, which is characterized in that described device further includes delay unit, the delay unit
Including wire jumper subelement and coiling subelement；
The wire jumper subelement and the impulse generating unit and the delay extraction unit are electrically connected, the wire jumper subelement
For being delayed to obtain the first feedback signal to the inceptive impulse signal, and first feedback signal is sent to described
Be delayed extraction unit；
The coiling subelement and the wire jumper subelement and the delay extraction unit are electrically connected, and the coiling subelement is used
In being delayed to obtain the second feedback signal to the inceptive impulse signal sent via the wire jumper subelement, and will be described
Second feedback signal is sent to the delay extraction unit, wherein first feedback signal as first pulse signal,
Second feedback signal is as second pulse signal.
4. the apparatus according to claim 1, which is characterized in that described device further includes delay unit and delay selection list
Member；
The impulse generating unit and the delay selection unit are electrically connected, so that delay selection unit acquisition is described just
Initial pulse signal；
The delay unit and the impulse generating unit and the delay selection unit are electrically connected, and the delay unit is used for
Delay process is carried out to the inceptive impulse signal, obtains multiple feedback signals, and the multiple feedback signal is sent to institute
State delay selection unit；
The delay selection unit is used to select two from the received inceptive impulse signal and the multiple feedback signal
Signal is as first pulse signal and second pulse signal, and by first pulse signal and second pulse
Signal is sent to the delay extraction unit.
5. device according to claim 4, which is characterized in that the delay unit includes that wire jumper subelement and coiling are single
Member；
The wire jumper subelement and the impulse generating unit and delay selection unit are electrically connected, and the wire jumper subelement is used for
The inceptive impulse signal is delayed to obtain the first feedback signal, and first feedback signal is sent to the delay
Selecting unit；
The coiling subelement and the wire jumper subelement and the delay selection unit are electrically connected, and the coiling subelement is used
In being delayed to obtain the second feedback signal to the inceptive impulse signal sent via the wire jumper subelement, and will be described
Second feedback signal is sent to the delay selection unit.
6. device according to claim 5, which is characterized in that
The delay selection unit, for selecting the inceptive impulse signal as first pulse signal, described first anti-
Feedback signal is as second pulse signal, alternatively, selecting first feedback signal as first pulse signal, described
Second feedback signal is sent to as second pulse signal, and by first pulse signal and second pulse signal
The delay extraction unit.
7. device according to claim 6, which is characterized in that described device further includes mask register；
The mask register and the delay selection unit are electrically connected, and the mask register is for controlling the delay choosing
It selects unit and selects the inceptive impulse signal or selection described the from the inceptive impulse signal and first feedback signal
One feedback signal is as first pulse signal, from first feedback signal and second feedback signal described in selection
Second feedback signal is as second pulse signal.
8. the apparatus according to claim 1, which is characterized in that described device further includes trigger register；
The trigger register and the impulse generating unit are electrically connected, and the trigger register is for controlling the pulse hair
Raw unit generates the inceptive impulse signal.
9. the apparatus according to claim 1, which is characterized in that described device further includes output unit；
The output unit and the delay extraction unit are electrically connected, and the output unit is used for according to preconfigured output
Electric current exports the target impulse signal.
10. a kind of pulse signal production method, which is characterized in that the method includes：
Generate inceptive impulse signal；
Obtain the first pulse signal relevant to the inceptive impulse signal and the second pulse signal, wherein first pulse
The width of signal and the second pulse signal is equal to the width of the inceptive impulse signal；
Obtain the delay between first pulse signal and second pulse signal；
Target impulse signal is generated based on the delay and first pulse signal and second pulse signal, wherein institute
The width for stating target impulse signal is less than the width of the inceptive impulse signal.
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|---|---|---|---|
| CN201810654954.2A CN108880511A (en) | 2018-06-22 | 2018-06-22 | Pulse signal generation device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654954.2A CN108880511A (en) | 2018-06-22 | 2018-06-22 | Pulse signal generation device and method |
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| CN201810654954.2A Withdrawn CN108880511A (en) | 2018-06-22 | 2018-06-22 | Pulse signal generation device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5216301A (en) * | 1991-12-20 | 1993-06-01 | Artisoft, Inc. | Digital self-calibrating delay line and frequency multiplier |
| US6114891A (en) * | 1998-04-16 | 2000-09-05 | Lg Semicon Co., Ltd. | Pulse generating circuit for dynamic random access memory device |
| CN101388660A (en) * | 2007-09-12 | 2009-03-18 | 敬德元 | Integrated circuit for controlling time-delay by time-delay module |
| CN102170277A (en) * | 2011-01-20 | 2011-08-31 | 中国科学院半导体研究所 | Picosecond-accuracy narrow-pulse width transistor-transistor logic (TTL) signal acquisition method based on phase shift AND operation |
| CN207232815U (en) * | 2017-10-12 | 2018-04-13 | 郑州云海信息技术有限公司 | One kind realizes delay adjustment circuit in digital display circuit |
-
2018
- 2018-06-22 CN CN201810654954.2A patent/CN108880511A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5216301A (en) * | 1991-12-20 | 1993-06-01 | Artisoft, Inc. | Digital self-calibrating delay line and frequency multiplier |
| US6114891A (en) * | 1998-04-16 | 2000-09-05 | Lg Semicon Co., Ltd. | Pulse generating circuit for dynamic random access memory device |
| CN101388660A (en) * | 2007-09-12 | 2009-03-18 | 敬德元 | Integrated circuit for controlling time-delay by time-delay module |
| CN102170277A (en) * | 2011-01-20 | 2011-08-31 | 中国科学院半导体研究所 | Picosecond-accuracy narrow-pulse width transistor-transistor logic (TTL) signal acquisition method based on phase shift AND operation |
| CN207232815U (en) * | 2017-10-12 | 2018-04-13 | 郑州云海信息技术有限公司 | One kind realizes delay adjustment circuit in digital display circuit |
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Application publication date: 20181123 |