CN202206352U - Serial concatenated nanosecond pulse source based on single-stage avalanche triode - Google Patents
Serial concatenated nanosecond pulse source based on single-stage avalanche triode Download PDFInfo
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- CN202206352U CN202206352U CN2011203368303U CN201120336830U CN202206352U CN 202206352 U CN202206352 U CN 202206352U CN 2011203368303 U CN2011203368303 U CN 2011203368303U CN 201120336830 U CN201120336830 U CN 201120336830U CN 202206352 U CN202206352 U CN 202206352U
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Abstract
The utility model discloses a serial concatenated nanosecond pulse source based on a single-stage avalanche triode, which is composed of a high voltage power supply, a differential trigger circuit, a serial avalanche circuit and a load circuit. The high voltage power supply provides high voltage required by avalanche for the serial avalanche circuit, the differential trigger circuit is connected with the serial avalanche circuit in series, the differential trigger circuit is formed by connecting a capacitor and a resistor in series, one pin of the resistor is connected with the ground, a high speed switch diode is connected with the resistor in parallel, the serial avalanche circuit is formed by connecting a plurality of avalanche triodes in series, the load circuit is formed by connecting the capacitor and the resistor in series, one pin of the resistor of the load circuit is connected with the ground, the load circuit is connected with the serial avalanche circuit in parallel, and the high voltage power supply is connected with the serial avalanche circuit and the load circuit in series through the resistor. The serial concatenated nanosecond pulse source has the advantages of being applied to a pulse ground penetrating radar system, capable of meeting requirements of the system of big amplitude, high stability and nanosecond narrow pulse signals.
Description
Technical field
The utility model relates to a kind of nanosecond pulse source, particularly a kind of nanosecond pulse source based on single-stage snowslide triode serially concatenated.
Background technology
At present, in the ultra broadband field of detecting, to significantly, nanosecond width the demand of time domain impulsive signals more and more urgent.How to obtain direct impulse as the circuit core device in the ULTRA-WIDEBAND RADAR system with avalanche transistor; The structure of clock normally is connected into the form that is similar to the Marx generator with avalanche transistor; Can realize the charged in parallel of electric capacity; Discharged in series, it has the advantage that supply power voltage is low, pulse amplitude is big.But need the triode number of cascade bigger, high to the consistency of performance requirement of each avalanche transistor, each snowslide pipe triggers simultaneously and is difficult to guarantee; The ultra wideband narrow-pulse repetition rate that produces based on the circuit structure of single-stage avalanche transistor serially concatenated is high, frequency stability is high, the waveform stabilization degree high, is particularly suitable for the application requirements of pulse GPR.
Summary of the invention
The purpose of the utility model is in order to realize the generation of narrow pulse signal significantly and a kind of nanosecond pulse source based on single-stage snowslide triode serially concatenated that provides.
In order to form by high voltage source, differential circuits for triggering, serial snowslide circuit, load circuit in the nanosecond pulse source that addresses the above problem the utility model and provide based on single-stage snowslide triode serially concatenated; High voltage source is the high voltage that serial snowslide circuit provides snowslide to need, and output voltage 0-3000V is adjustable.The differential circuits for triggering are the inputs that trigger square wave, the frequency that control impuls repeats to produce.Serial snowslide circuit is on avalanche transistor basic circuit basis, and single avalanche transistor base is penetrated a grade short circuit and is operated in no-voltage pattern (except the filp-flop stage), and the whole level Four serially concatenated mode that adopts realizes the generation of nanosecond pulse significantly on load circuit.
Differential circuits for triggering and serial snowslide circuit are in series, and the differential circuits for triggering are to be in series by electric capacity and resistance, resistance one pin ground connection, and resistance is parallel with the speed-sensitive switch diode.
Serial snowslide circuit is to be in series by several avalanche transistors, a pin ground connection of last avalanche transistor, and load circuit is in series by electric capacity and resistance, the resistance one pin ground connection of load circuit, load circuit is parallelly connected with serial snowslide circuit.
High voltage source is in series a pin ground connection of power supply through resistance and serial snowslide circuit and load circuit.
The beneficial effect of the utility model is: the ultra wideband narrow-pulse that produces based on single-stage avalanche transistor serially concatenated circuit has high repetition rate, high frequency stability, high waveform stabilization degree; This paired pulses ground penetrating radar system is very crucial; And the triode that works in the snowslide conducting state belongs to astable circuit; Multistage snowslide circuit is very high to the coherence request of avalanche transistor; Be difficult to find the on all four avalanche transistor of performance, the burst pulse frequency of generation and the stability of waveform are low, and single-stage avalanche transistor serially concatenated circuit distributed constant is less, guaranteed that from structure instantaneous avalanche current has only a path; Be applied to the pulse ground penetrating radar system, can satisfy fully system to significantly, the requirement of high stability, nanosecond narrow pulse signal.
Description of drawings
Fig. 1 is the utility model block diagram.
Fig. 2 is the utility model circuit theory diagrams.
1, high voltage source 2, differential circuits for triggering 3, serial snowslide circuit 4, load circuit.
Embodiment
See also Fig. 1, shown in Figure 2: the utility model is made up of high voltage source 1, differential circuits for triggering 2, serial snowslide circuit 3, load circuit 4, the high voltage that high voltage source 1 provides snowslide to need for serial snowslide circuit 3, output voltage V
CCFor 0-3000V adjustable.Differential circuits for triggering 2 are the inputs that trigger square wave, the frequency that control impuls repeats to produce.Serial snowslide circuit 3 is on avalanche transistor basic circuit basis; Single avalanche transistor base is penetrated a grade short circuit and is operated in no-voltage pattern (except the filp-flop stage); The whole level Four serially concatenated mode that adopts realizes the generation of nanosecond pulse significantly on load circuit 4.
Differential circuits for triggering 2 are in series with serial snowslide circuit 3, and differential circuits for triggering 2 are by capacitor C
2And resistance R
2Be in series resistance R
2One pin ground connection, resistance R
2Be parallel with speed-sensitive switch diode D
1
High voltage source 1 is passed through resistance R
1Be in series a pin ground connection of high voltage source 1 with serial snowslide circuit 3 and load circuit 4.
The operation principle of the utility model:
Q
1To Q
4Be avalanche transistor, base is penetrated grade short circuit to be operated in no-voltage pattern (except the filp-flop stage), can improve its puncture voltage, Q
4Be filp-flop stage.Snowslide Guan Jun is in critical avalanche condition when static.When trigger impulse arrives, cause snowslide pipe generation avalanche breakdown, C
1Rapidly through the discharge of snowslide tube loop, in the resistance R of load circuit 4
LThe instantaneous avalanche current of last acquisition (voltage).Because R
1Metering function, can guarantee that snowslide Guan Buhui thermal breakdown takes place and burns, and suitably reduces R
1Value can improve the repetition rate of clock, C
2And R
2The parameter of the differential circuits for triggering of forming 2 is 1nF and 800 Ω.R
LBe 50 Ω standard terminations.C
1Be 20pF.D
1Be the speed-sensitive switch diode, guarantee Q
4Emitter junction can not bear big reverse voltage.The snowslide pipe number of single-stage serially concatenated can increase, and the burst pulse amplitude of output can correspondingly increase, and pulse duration can not increase, but this needs higher DC high-voltage power supply and the avalanche transistor with bigger snowslide conducting electric current.At present experiment confirm the pulse source circuit of single-stage serially concatenated only need four avalanche transistors just can produce peak-to-peak value to be about 700 volts, halfwidth be the unipolarity ultra-wideband pulse of 3.5 nanoseconds, the repetition rate of pulse can reach 150KHz.
Claims (1)
1. the nanosecond pulse source based on single-stage snowslide triode serially concatenated is made up of high voltage source, differential circuits for triggering, serial snowslide circuit, load circuit, and high voltage source is the high voltage that serial snowslide circuit provides snowslide to need; The differential circuits for triggering are the inputs that trigger square wave, the frequency that control impuls repeats to produce, and differential circuits for triggering and serial snowslide circuit are in series; The differential circuits for triggering are to be in series by electric capacity and resistance; Resistance one pin ground connection, resistance is parallel with the speed-sensitive switch diode, it is characterized in that: serial snowslide circuit is to be in series by several avalanche transistors; One pin ground connection of last avalanche transistor; Load circuit is in series by electric capacity and resistance, the resistance one pin ground connection of load circuit, and load circuit is parallelly connected with serial snowslide circuit; High voltage source is in series a pin ground connection of power supply through resistance and serial snowslide circuit and load circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203368303U CN202206352U (en) | 2011-09-08 | 2011-09-08 | Serial concatenated nanosecond pulse source based on single-stage avalanche triode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203368303U CN202206352U (en) | 2011-09-08 | 2011-09-08 | Serial concatenated nanosecond pulse source based on single-stage avalanche triode |
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| Publication Number | Publication Date |
|---|---|
| CN202206352U true CN202206352U (en) | 2012-04-25 |
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| CN2011203368303U Expired - Fee Related CN202206352U (en) | 2011-09-08 | 2011-09-08 | Serial concatenated nanosecond pulse source based on single-stage avalanche triode |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197288A (en) * | 2013-04-12 | 2013-07-10 | 中国石油集团钻井工程技术研究院 | Misering range radar in drilling and signal generator thereof |
| CN103368530A (en) * | 2013-07-31 | 2013-10-23 | 桂林电子科技大学 | Self-adaptive avalanche transistor pulse generator |
| CN108599740A (en) * | 2018-04-28 | 2018-09-28 | 深圳大学 | Impulse generator |
| CN108712162A (en) * | 2018-04-27 | 2018-10-26 | 湖北大学 | A kind of avalanche transistor connection in series-parallel high pressure is soon along switching circuit |
| CN109257031A (en) * | 2018-08-01 | 2019-01-22 | 电子科技大学 | One kind being based on the concatenated Precise amplitudes high-voltage square-wave generation circuit of more metal-oxide-semiconductors |
| CN110890876A (en) * | 2019-12-19 | 2020-03-17 | 重庆大学 | High-frequency high-voltage picosecond pulse generator of Marx circuit with avalanche triode series-parallel structure and application |
-
2011
- 2011-09-08 CN CN2011203368303U patent/CN202206352U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197288A (en) * | 2013-04-12 | 2013-07-10 | 中国石油集团钻井工程技术研究院 | Misering range radar in drilling and signal generator thereof |
| CN103368530A (en) * | 2013-07-31 | 2013-10-23 | 桂林电子科技大学 | Self-adaptive avalanche transistor pulse generator |
| CN103368530B (en) * | 2013-07-31 | 2016-07-06 | 桂林电子科技大学 | A kind of self adaptation avalanche transistor pulse generator |
| CN108712162A (en) * | 2018-04-27 | 2018-10-26 | 湖北大学 | A kind of avalanche transistor connection in series-parallel high pressure is soon along switching circuit |
| CN108712162B (en) * | 2018-04-27 | 2022-05-06 | 湖北大学 | Avalanche transistor series-parallel high-voltage fast-edge switching circuit |
| CN108599740A (en) * | 2018-04-28 | 2018-09-28 | 深圳大学 | Impulse generator |
| CN109257031A (en) * | 2018-08-01 | 2019-01-22 | 电子科技大学 | One kind being based on the concatenated Precise amplitudes high-voltage square-wave generation circuit of more metal-oxide-semiconductors |
| CN109257031B (en) * | 2018-08-01 | 2021-03-30 | 电子科技大学 | Accurate-amplitude high-voltage square wave generation circuit based on series connection of multiple MOS (metal oxide semiconductor) tubes |
| CN110890876A (en) * | 2019-12-19 | 2020-03-17 | 重庆大学 | High-frequency high-voltage picosecond pulse generator of Marx circuit with avalanche triode series-parallel structure and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20120908 |