CN205105180U - Synchronous triggering signal circuit of all solid state high -pressure nanosecond pulser - Google Patents
Synchronous triggering signal circuit of all solid state high -pressure nanosecond pulser Download PDFInfo
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- CN205105180U CN205105180U CN201520946702.9U CN201520946702U CN205105180U CN 205105180 U CN205105180 U CN 205105180U CN 201520946702 U CN201520946702 U CN 201520946702U CN 205105180 U CN205105180 U CN 205105180U
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- electric capacity
- timers
- sn74ls123
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Abstract
The utility model discloses a synchronous triggering signal circuit of all solid state high -pressure nanosecond pulser, including multivibrator and trigger impulse generating circuit, multivibrator is used for producing oscillating signal, and trigger impulse generating circuit is according to the oscillating signal output pulse signal of multivibrator production. The utility model discloses a current sensor gathers the pulse current in the load, and is real -time reliable, the utility model discloses the method realization of taking is comparatively simple, and used device can obtain easily.
Description
Technical field
The utility model belongs to electrical equipment technical field, relates to the circuit that can produce nanosecond trigger impulse, is specifically related to a kind of all solid state high voltage nanosecond pulse generator synchronous triggering signal circuit.
Background technology
It is the medium scale integrated circuit that the analog functuion in order to replace the mechanical timer that traditional volume is comparatively large, precision reliability is lower combines with digital function that 555 timer circuits are developed the earliest, and it has, and timing accuracy reliability is high, temperature drift is little, fast operation and can carry out directly interconnectedly enriching many-sided advantages such as its function with other digital circuit.It is convenient comparatively flexibly that it uses in side circuit exploitation, only needs the Resistor-Capacitor Unit combining required practical function peripheral hardware a little just can complete functions such as having monostable, multi resonant and Schmidt trigger.Tired its has cheap, technical performance and improves and stablize contour cost performance and the welcome that is subject to vast digital circuit user and electrotechnical, electronic professional person simultaneously.555 timer circuits extensively should
For in the generation of signal, conversion, the functional circuit such as control and detection.To sum up, present applicant proposes a kind of all solid state high voltage nanosecond pulse generator synchronous triggering signal design.
Utility model content
Given this, the purpose of this utility model is to provide a kind of all solid state high voltage nanosecond pulse generator synchronous triggering signal circuit.
The purpose of this utility model is achieved through the following technical solutions, a kind of all solid state high voltage nanosecond pulse generator synchronous triggering signal circuit, comprise multivibrator and triggering pulse generator, described multivibrator for generation of oscillator signal, the oscillator signal output pulse signal that triggering pulse generator produces according to multivibrator.
Further, described multivibrator comprises 555 timers, the first resistance R1, the second resistance R2, the first electric capacity C1 and the second electric capacity C2, and described second resistance is variable resistor, and 4 pin and 8 pin of described 555 timers connect power supply signal, 1 pin ground connection of 555 timers, 5 pin are through the first capacity earth; One end of described first resistance is connected with power supply, the other end of the first resistance is connected with the second resistance, second resistance is through the second capacity earth, 7 pin of described 555 timers are connected with the common port of the first resistance and the second resistance, 2 pin of described 555 timers are connected with 6 pin and link is connected with the common port of the second resistance and the second electric capacity, and 3 pin of described 555 timers are connected with triggering pulse generator as output.
Further, described triggering pulse generator comprises monostable flipflop SN74LS123, two rising edge d type flip flop SN74LS74A, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 3rd electric capacity C3, the 4th electric capacity C4 and the 5th electric capacity C5, one end of described 3rd resistance is connected with power supply, the other end of the 3rd resistance is through the 3rd capacity earth, and the common port of described 3rd resistance and the 3rd electric capacity is connected with 3 pin of monostable flipflop SN74LS123,11 pin respectively; 3 pin of described 555 timers are connected with 2 pin of monostable flipflop SN74LS123,10 pin respectively; 14 pin, four electric capacity in parallel with between 15 pin of described monostable flipflop SN74LS123, four resistance of 15 pin through connecting successively of described monostable flipflop SN74LS123, the 5th resistance are connected with power supply, 6 pin, five electric capacity in parallel with between 7 pin of described monostable flipflop SN74LS123, and 7 pin are connected with power supply through the 6th resistance; 13 pin of described monostable flipflop SN74LS123 are connected with 1 pin of two rising edge d type flip flop SN74LS74A, and 12 pin are connected with 3 pin of two rising edge d type flip flop SN74LS74A, and 2 pin and 4 pin of two rising edge d type flip flop SN74LS74A connect power supply respectively.
Owing to have employed technique scheme, the utility model has following advantage:
1, the utility model adopts the pulse current in current sensor collection load, in real time reliably;
2, the method that the utility model is taked realizes comparatively simple, and device used can obtain easily.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is all solid state high voltage nanosecond pulse generator synchronous triggering signal schematic block circuit diagram;
Fig. 3 is the oscillogram that all solid state high voltage nanosecond pulse generator 555 forms multivibrator;
Fig. 4 is all solid state high voltage nanosecond pulse generator nanosecond pulse circuits for triggering.
Embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail; Should be appreciated that preferred embodiment only in order to the utility model is described, instead of in order to limit protection range of the present utility model.
As shown in Figure 1, synchronous triggering signal circuit is by 555 timers, 74LS123 chip and 74LS74 chip portfolio form, and what wherein 555 timers built is a multivibrator, 74LS123 and 74LS74 combines the circuit that structure one can produce nanosecond trigger impulse.The trigger impulse amplitude that this synchronous triggering signal circuit produces is the trigger impulse of 5V, pulsewidth 5 ~ 1250ns.
Described multivibrator comprises 555 timers, the first resistance R1, the second resistance R2, the first electric capacity C1 and the second electric capacity C2, described second resistance is variable resistor, 4 pin and 8 pin of described 555 timers connect power supply signal, 1 pin ground connection of 555 timers, and 5 pin are through the first capacity earth; One end of described first resistance is connected with power supply, the other end of the first resistance is connected with the second resistance, second resistance is through the second capacity earth, 7 pin of described 555 timers are connected with the common port of the first resistance and the second resistance, 2 pin of described 555 timers are connected with 6 pin and link is connected with the common port of the second resistance and the second electric capacity, and 3 pin of described 555 timers are connected with triggering pulse generator as output.
As Fig. 2, by 555 timers and outward element R
1, R
2, C forms multivibrator, pin 2 is directly connected with pin 6.Circuit does not have stable state, and only there are two temporary stable states, circuit does not also need outer contacting to signal, and utilizes power supply to pass through R
1, R
2to C charging, and C passes through R
2to discharge end D
celectric discharge, makes circuit produce vibration.Electric capacity C is at 2/V
cCand 1/V
cCbetween charging and discharging, thus obtain a series of square wave at output, corresponding waveform is as shown in Figure 2.
The time parameter of output signal is: T=t
w1+ t
w2
t
w1＝0.7(R
1+R
2)C
t
w2＝0.7R
2C
Wherein, t
w1for V
cby 1/3V
cCrise to 2/3V
cCthe required time, t
w2for the time needed for electric capacity C electric discharge.
In the circuit, R
1choose 220 Ω resistance, R
2for slide rheostat 0 ~ 50k Ω, electric capacity C are 4.7uF.Time parameter calculating formula according to output signal above can obtain, and the frequency of output signal is minimum can be about 2Hz.
The stability of outer member determines the stability of multivibrator, and 555 timers are equipped with a small amount of element and can obtain the frequency of oscillation of degree of precision and have stronger power output capacity.
As shown in Figure 3, described triggering pulse generator comprises monostable flipflop SN74LS123, two rising edge d type flip flop SN74LS74A, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 3rd electric capacity C3, the 4th electric capacity C4 and the 5th electric capacity C5, one end of described 3rd resistance is connected with power supply, the other end of the 3rd resistance is through the 3rd capacity earth, and the common port of described 3rd resistance and the 3rd electric capacity is connected with 3 pin of monostable flipflop SN74LS123,11 pin respectively; 3 pin of described 555 timers are connected with 2 pin of monostable flipflop SN74LS123,10 pin respectively; 14 pin, four electric capacity in parallel with between 15 pin of described monostable flipflop SN74LS123, four resistance of 15 pin through connecting successively of described monostable flipflop SN74LS123, the 5th resistance are connected with power supply, 6 pin, five electric capacity in parallel with between 7 pin of described monostable flipflop SN74LS123, and 7 pin are connected with power supply through the 6th resistance; 13 pin of described monostable flipflop SN74LS123 are connected with 1 pin of two rising edge d type flip flop SN74LS74A, and 12 pin are connected with 3 pin of two rising edge d type flip flop SN74LS74A, and 2 pin and 4 pin of two rising edge d type flip flop SN74LS74A connect power supply respectively.
This circuit employs two single shot timers and d type flip flop produces short pulse, when being subject to the positive rising edge of TTL compatible, produces positive pulse.IC
1Ba width is provided to be about the fixed pulse of 250ns.IC
1Aby regulating slide rheostat R
5the variable pulse of a width 250 ~ 1500ns can be provided.When a positive pulse triggers each timer at input port A, IC
1Athe trigger impulse exported stops IC
2AcLR input, and make its CK signal step-down.When IC1B the trigger impulse time then, its rising edge is recorded at IC
2Atime of exporting to B of logical one of D input.Work as IC
1Athe trigger impulse time then, IC is removed in its output
2Aq export, be B export weaken.Therefore, B output pulse is as follows:
IC
2Apulse duration=IC
1Apulse duration-IC
1Bpulse duration
The output pulse width of circuit, at 5 ~ 1250ns variable range, can utilize the pulse that a logical circuit generation is faster shorter.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (3)
1. an all solid state high voltage nanosecond pulse generator synchronous triggering signal circuit, it is characterized in that: comprise multivibrator and triggering pulse generator, described multivibrator for generation of oscillator signal, the oscillator signal output pulse signal that triggering pulse generator produces according to multivibrator.
2. all solid state high voltage nanosecond pulse generator synchronous triggering signal circuit according to claim 1, it is characterized in that: described multivibrator comprises 555 timers, the first resistance (R1), the second resistance (R2), the first electric capacity (C1) and the second electric capacity (C2), described second resistance is variable resistor, 4 pin and 8 pin of described 555 timers connect power supply signal, 1 pin ground connection of 555 timers, 5 pin are through the first capacity earth; One end of described first resistance is connected with power supply, the other end of the first resistance is connected with the second resistance, second resistance is through the second capacity earth, 7 pin of described 555 timers are connected with the common port of the first resistance and the second resistance, 2 pin of described 555 timers are connected with 6 pin and link is connected with the common port of the second resistance and the second electric capacity, and 3 pin of described 555 timers are connected with triggering pulse generator as output.
3. all solid state high voltage nanosecond pulse generator synchronous triggering signal circuit according to claim 2, it is characterized in that: described triggering pulse generator comprises monostable flipflop SN74LS123, two rising edge d type flip flop SN74LS74A, 3rd resistance (R3), 4th resistance (R4), 5th resistance (R5), 6th resistance (R6), 3rd electric capacity (C3), 4th electric capacity (C4) and the 5th electric capacity (C5), one end of described 3rd resistance is connected with power supply, the other end of the 3rd resistance is through the 3rd capacity earth, the common port of described 3rd resistance and the 3rd electric capacity respectively with 3 pin of monostable flipflop SN74LS123, 11 pin connect, 3 pin of described 555 timers are connected with 2 pin of monostable flipflop SN74LS123,10 pin respectively, 14 pin, four electric capacity in parallel with between 15 pin of described monostable flipflop SN74LS123, four resistance of 15 pin through connecting successively of described monostable flipflop SN74LS123, the 5th resistance are connected with power supply, 6 pin, five electric capacity in parallel with between 7 pin of described monostable flipflop SN74LS123, and 7 pin are connected with power supply through the 6th resistance, 13 pin of described monostable flipflop SN74LS123 are connected with 1 pin of two rising edge d type flip flop SN74LS74A, and 12 pin are connected with 3 pin of two rising edge d type flip flop SN74LS74A, and 2 pin and 4 pin of two rising edge d type flip flop SN74LS74A connect power supply respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520946702.9U CN205105180U (en) | 2015-11-24 | 2015-11-24 | Synchronous triggering signal circuit of all solid state high -pressure nanosecond pulser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520946702.9U CN205105180U (en) | 2015-11-24 | 2015-11-24 | Synchronous triggering signal circuit of all solid state high -pressure nanosecond pulser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183623A (en) * | 2017-12-06 | 2018-06-19 | 山东航天电子技术研究所 | A kind of fast rising pulse source of high pressure |
-
2015
- 2015-11-24 CN CN201520946702.9U patent/CN205105180U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183623A (en) * | 2017-12-06 | 2018-06-19 | 山东航天电子技术研究所 | A kind of fast rising pulse source of high pressure |
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