CN112636724A - Pulse power supply based on avalanche diode Marx generator and LTD circuit - Google Patents

Pulse power supply based on avalanche diode Marx generator and LTD circuit Download PDF

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Publication number
CN112636724A
CN112636724A CN202011555807.3A CN202011555807A CN112636724A CN 112636724 A CN112636724 A CN 112636724A CN 202011555807 A CN202011555807 A CN 202011555807A CN 112636724 A CN112636724 A CN 112636724A
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circuit
avalanche
marx
power supply
stage
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丁卫东
邓子琛
袁琪
任林渊
申赛康
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Xian Jiaotong University
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Xian Jiaotong University
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    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K3/00Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/335Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of semiconductor devices with more than two electrodes and exhibiting avalanche effect

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Abstract

The invention discloses a pulse power supply based on a avalanche diode Marx generator and an LTD circuit, which adopts an M-grade LTD circuit comprising M subareas, each subarea comprises an N-grade Marx circuit, each grade of Marx circuit comprises N avalanche diodes which are connected in series, a trigger unit is connected with the trigger input end of each grade of LTD circuit, a high-voltage direct current power supply 1 is connected with the charging loop of each grade of LTD circuit, the secondary side of the M-grade LTD circuit is connected in series to output high-voltage nanosecond pulses, the M-grade LTD circuit with M subareas is adopted, the output end of the Marx circuit of each subarea is connected with the primary side of each grade of LTD circuit, the M-grade LTD is connected in series with the secondary side to output high-front-edge repetition-frequency high-voltage nanosecond pulses, the output voltage of the N avalanche diodes which are connected in series is greatly improved compared with the single-grade Marx circuit of a single avalanche diode, and the two ends of each avalanche diode are connected in parallel with a voltage-sharing, the output pulse is stable and efficient in voltage and current, and the conducting state of the avalanche transistor in each partition Marx circuit is greatly improved.

Description

Pulse power supply based on avalanche diode Marx generator and LTD circuit
Technical Field
The invention belongs to the field of pulse power and discharge plasma, and particularly relates to a pulse power supply based on a Marx generator and an LTD circuit of an avalanche diode.
Background
The pulse power technology is an electro-physical technology which stores energy with lower power for a longer time and then converts the energy into pulse electromagnetic energy with power of several times for a short time, and achieves the purpose of generating pulse high voltage and large current on an applied load.
Atmospheric pressure plasma has received much attention as a special low temperature plasma. In many cases, ac sources, dc sources, microwave sources, etc. are used to generate atmospheric pressure plasma, and the temperature of the atmospheric pressure plasma generated by these methods is too high, which limits its application in biomedical and material processing. The atmospheric pressure plasma excited by the repetition frequency pulse source has the obvious advantages of high particle density, good uniformity, less heat deposition and the like, and the overall power consumption is greatly smaller than that of the traditional excitation source. The repetition frequency pulse source is used for exciting the atmospheric pressure plasma and has the characteristics of high output voltage amplitude, short leading edge time, short pulse width, high repetition frequency and the like. At present, magnetic switches, MOSFETs, IGBTs and the like are generally adopted at home and abroad as key switching devices of a repetition frequency pulse source, but the problems of large volume and weight, high cost, complex control circuit, limitation of a voltage rising edge by the switching devices, large voltage jitter and the like exist. The avalanche diode is a switch with strong current capacity, extremely fast switching speed and extremely small volume, and can be used for generating voltage and current pulses with high repetition frequency, fast leading edge, low jitter and high stability. The Marx generator based on the avalanche diode can generate high-voltage pulses with short rise time, small jitter and high repetition frequency, and has small volume, light weight and compact device. However, the isolation requirement of the Marx generator is high, the output efficiency is rapidly reduced under the condition of increasing the number of stages, and the current capacity is limited by a single switching device. The LTD circuit with higher current capacity has the following problems that the withstand voltage of the normal operation of a single avalanche transistor is only about 300V, and if the LTD circuit based on the avalanche transistor is only adopted, the number of required LTD circuit stages when high output voltage needs to be obtained is too many, so that great difficulty is brought to the driving and synchronous belt of the circuit, and the application scene of the LTD circuit is severely restricted.
Disclosure of Invention
The invention aims to provide a pulse power supply based on a Marx generator and an LTD circuit of an avalanche diode, which overcomes the defects of the prior art, can obtain high-amplitude, low-jitter and steep-front voltage nanosecond pulses on a large load and a small load, and has the advantages of strong load carrying capacity, long service life, high reliability, simple structure, small size and light weight.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pulse power supply based on a avalanche diode Marx generator and an LTD circuit comprises a high-voltage direct-current power supply, a trigger unit and M-level LTD circuits, wherein each-level LTD circuit comprises M partitions, each partition comprises N-level Marx circuits, each-level Marx circuit comprises N avalanche diodes which are connected in series, the trigger unit is connected with the trigger input end of each-level LTD circuit, the high-voltage direct-current power supply 1 is connected with a charging loop of each-level LTD circuit, the secondary side of each-level LTD circuit is connected in series to output high-voltage nanosecond pulses, M is larger than or equal to 1, M is larger than or equal to 1, and N is larger than or equal to 1.
Furthermore, the trigger unit is connected with the base electrode of the first avalanche transistor of the first Marx circuit in each partition.
Furthermore, the Marx circuit comprises n avalanche transistors which are connected in series, wherein an emitting electrode of a first avalanche transistor is grounded, a base electrode of the first avalanche transistor is connected with the trigger unit, a collector electrode of the first avalanche transistor is connected with an emitting electrode of an adjacent avalanche transistor, a collector electrode of a previous avalanche transistor in the middle is connected with an emitting electrode of a next avalanche transistor, and a collector electrode of the last avalanche transistor is connected with the charging resistor.
Furthermore, the device also comprises an auxiliary trigger circuit connected with the Marx circuit.
Furthermore, the front a-stage Marx circuit in each N-stage Marx circuit connected in parallel in each partition is connected with an auxiliary trigger circuit; the rear N-a-stage Marx circuit is not connected with the auxiliary trigger circuit, wherein a is more than or equal to 0 and less than or equal to N.
Furthermore, the auxiliary trigger circuit comprises an auxiliary trigger capacitor and an auxiliary trigger resistor, two ends of the auxiliary trigger resistor are connected with the base electrode and the emitter electrode of one avalanche transistor in parallel, and two ends of the auxiliary trigger capacitor are respectively connected with the base electrodes of two adjacent avalanche transistors.
Furthermore, the trigger unit adopts a signal generator.
Further, a signal generator is connected to the LTD circuit of each stage through a power divider.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention relates to a pulse power supply based on a avalanche diode Marx generator and an LTD circuit, which comprises a high-voltage direct current power supply, a trigger unit and an M-stage LTD circuit, wherein each stage of LTD circuit comprises M subareas, each subarea comprises N stages of Marx circuits, each stage of Marx circuit comprises N avalanche diodes which are connected in series, the trigger unit is connected with the trigger input end of each stage of LTD circuit, the high-voltage direct current power supply 1 is connected with a charging loop of each stage of LTD circuit, the secondary side of the M-stage LTD circuit is connected in series to output high-voltage nanosecond pulses, M is more than or equal to 1, M is more than or equal to 1, N is more than or equal to 1, the M-stage LTD circuits with M subareas are adopted, the output end of each stage of Marx circuit of each subarea is connected with the primary side of the LTD circuit, the M-stage LTD is connected in series with the secondary side to output high-voltage nanosecond pulses with fast forward repetition frequency, the pulse current capacity of the pulse power supply is increased by M times, and, and the voltage equalizing resistor with large resistance is connected in parallel at the two ends of each avalanche tube for equalizing voltage, so that uneven voltage division of the avalanche tubes is prevented, output pulses reach good levels in the aspects of voltage, current and front edge, and the conduction state of the avalanche tubes in each Marx circuit is greatly improved.
Furthermore, an LTD circuit is adopted on the basis of the Marx circuit, so that the output amplitude is easily improved by increasing the number of LTD stages.
Furthermore, an auxiliary trigger circuit is introduced into the multi-tube series-connected avalanche tube Marx generator, so that the triggering of the avalanche tube is stable and reliable, and the stability and the service life of the device are improved.
Furthermore, the LTD circuit realizes the induction superposition of voltage through the magnetic core between each level, so that the voltage of the whole device is reduced to zero, and the voltage of the LTD circuit at each level is lower, so that the requirement on insulation is low.
Drawings
Fig. 1 is a schematic block diagram of a circuit in an embodiment of the invention.
Fig. 2 is a diagram of an N-stage Marx circuit with auxiliary triggering according to an embodiment of the present invention.
FIG. 3 is a circuit diagram of a pulse power supply according to an embodiment of the present invention.
FIG. 4 is a waveform diagram of a single output of the pulse power supply according to an embodiment of the present invention.
In the figure, 1, a high-voltage direct-current power supply; 2. a trigger unit; 3. the primary side of the LTD circuit; 4. the LTD circuit secondary.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in figure 1, the pulse power supply based on the avalanche diode Marx generator and the LTD circuit comprises a high-voltage direct-current power supply 1, a trigger unit 2 and an M-level LTD circuit, wherein each level of LTD circuit comprises M partitions, each partition comprises N levels of Marx circuits, each level of Marx circuit comprises N avalanche diodes which are connected in series, the trigger unit 2 is connected with the trigger input end of each level of LTD circuit, the high-voltage direct-current power supply 1 is connected with a charging loop of each level of LTD circuit, the secondary side of the M level of LTD circuit is connected in series to output high-voltage nanosecond pulses, M is larger than or equal to 1, M is larger than or equal to 1, and N is larger than or equal to 1.
Specifically, the triggering unit 2 is connected to the base of the first avalanche transistor of the first Marx circuit in each partition, and is configured to generate a triggering pulse and trigger the first avalanche transistor of the first Marx circuit in each partition in each stage of LTD circuit to turn on.
As shown in fig. 2, the multi-stage Marx circuit further comprises auxiliary trigger circuits, and the front a-stage Marx circuit in each N-stage Marx circuit connected in parallel in a partition is connected with one auxiliary trigger circuit; the rear N-a-stage Marx circuit is not connected with the auxiliary trigger circuit, wherein a is more than or equal to 0 and less than or equal to N.
As shown in fig. 3, specifically, the Marx circuit includes n avalanche transistors connected in series, where an emitter of a first avalanche transistor is grounded, a base of the first avalanche transistor is connected to the trigger unit 2, a collector of the first avalanche transistor is connected to an emitter of an adjacent avalanche transistor, a collector of a previous avalanche transistor at an intermediate position is connected to an emitter of a next avalanche transistor, and a collector of a last avalanche transistor is connected to a charging resistor.
The auxiliary trigger circuit comprises an auxiliary trigger capacitor and an auxiliary trigger resistor, two ends of the auxiliary trigger resistor are connected with the base electrode and the emitter electrode of one avalanche transistor in parallel, and two ends of the auxiliary trigger capacitor are respectively connected with the base electrodes of two adjacent avalanche transistors. The Marx circuit with the auxiliary trigger resistor at the front a level (a is more than or equal to 0 and less than or equal to N) is characterized in that the auxiliary trigger capacitor is charged in a static state, the auxiliary trigger capacitor of the auxiliary trigger circuit forms a loop through the auxiliary trigger resistor, the base level of the avalanche transistor and the collector to generate leakage current, and the leakage current provides current for the base of the avalanche transistor so that the avalanche transistor is in a critical avalanche state. After a first avalanche transistor of the first-stage Marx circuit in each partition is conducted under the action of an external pulse, the auxiliary trigger capacitor discharges with the conducted avalanche transistor through the auxiliary trigger resistor, a positive pulse voltage is formed on the next auxiliary trigger resistor, and the next avalanche transistor is triggered to be conducted, so that all avalanche transistors in each partition are conducted.
After the first-stage Marx circuit in each partition is completely conducted, potential difference is generated at two ends of the auxiliary trigger resistor of the first tube of the second-stage Marx circuit to conduct the first-stage Marx circuit, and the conducting principle of the rear n-1 avalanche tubes of the second-stage Marx circuit and the avalanche tubes in the subsequent Marx circuit is the same as that described above.
And after the front a-level (a is more than or equal to 0 and less than or equal to N) avalanche transistors with the auxiliary trigger circuits are conducted, the a +1 th grade avalanche transistors work in an overvoltage conducting state and are sequentially broken down to complete the breakover of the avalanche transistors in the N-a-level Marx circuit.
The circuit is formed by connecting M-level LTD circuits (M is more than or equal to 1) in series, wherein each level of LTD circuit is equivalent to 1: 1, the output voltage of each stage of LTD circuit is sequentially overlapped in series at the secondary side, and M times of the output voltage of the first stage of LTD circuit is output at the upper end of the first stage and the lower end of the last stage of the secondary side. Each stage of LTD circuit is divided into m subareas (m is larger than or equal to 1), the m subareas (m is larger than or equal to 1) are connected in parallel to output to the primary side of the single-stage LTD circuit, equivalent to that the primary side of each stage is connected in parallel by the m Marx circuits, the leakage inductance of the magnetic core of the primary side is changed into 1/m, the rising edge of the pulse is shortened, and each subarea bears 1/m of the current on the actual load. Each subarea of each stage of LTD circuit is composed of N stages of Marx circuits (N is more than or equal to 1), each stage of Marx circuit is composed of N avalanche transistors, the N avalanche transistors are connected in series to improve the output voltage of the Marx circuit of each stage by N times, so that the output voltage of the N avalanche transistors connected in series is theoretically improved by N x N times compared with the output voltage of a single avalanche transistor and a single-stage Marx circuit, and the two ends of each avalanche transistor are connected with equalizing resistors with large resistance in parallel to equalize the voltage, so that uneven voltage division of the avalanche transistors is prevented. The trigger unit 2 employs a signal generator.
As shown in fig. 3, the pulse power supply based on the avalanche diode Marx generator and the LTD circuit, specifically, the pulse power supply of the 4-partition 2-stage LTD circuit of the 3-stage Marx generator with 3 avalanche diodes connected in series, according to the embodiment of the present invention, includes a high voltage direct current power supply 1, a trigger unit 2, an LTD circuit primary side 3, and an LTD circuit secondary side 4; the trigger unit 2 is respectively connected with the base electrode of the first avalanche transistor of the first-stage Marx circuit of each partition in each stage of LTD circuit in the primary side 3 of the LTD power supply, the high-voltage direct-current power supply 1 is connected with a charging loop in the primary side 3 of the LTD power supply, and the secondary side 4 of the LTD power supply is connected with an oscilloscope through a lead to measure an open-circuit output waveform.
In this embodiment, the signal generator 2 outputs a trigger pulse to each stage of LTD circuit through a 1-to-2 power divider, so as to trigger the first transistor of the first stage of Marx circuit per each stage of partition to be turned on simultaneously.
In this embodiment, the parameter of the high-voltage direct-current power supply 2 is determined by the number N of the avalanche transistors connected in series in each stage in the Marx circuit, and in this embodiment, the number of the avalanche transistors connected in series in each stage of the Marx circuit is 3, so that the high-voltage direct-current power supply of this embodiment outputs about 960V voltage to supply power to each stage of the LTD circuit.
In the embodiment, the primary side 3 of the LTD circuit consists of 2-stage LTD circuits which are arranged from top to bottom, and each stage of LTD circuit consists of 4 partitionsThe output of each subarea bypasses a magnetic core and is grounded to form a loop, each subarea is provided with a 3-stage Marx circuit, the Marx circuit is specifically a Marx generator, each stage of Marx circuit is formed by connecting 3 avalanche transistors in series, and the Marx circuits are respectively a first avalanche transistor Q which are sequentially connected in series11The second avalanche tube Q12And a third avalanche tube Q13(ii) a The specific serial connection mode is a first avalanche transistor Q11The emitter of (A) is grounded, and the first avalanche tube Q11Collector electrode and second avalanche diode Q12Is connected with the emitter of the second avalanche tube Q12Collector electrode and third avalanche diode Q13Is connected with the emitter of the third avalanche tube Q13Collector and charging resistor Rc1Are connected.
In this embodiment, the 3-level Marx circuits all adopt an auxiliary trigger structure to make the avalanche transistors conducted, the first avalanche transistor of the first-level Marx circuit is triggered by an external signal generator, and the first avalanche transistor Q of the first-level Marx circuit11A 50 omega resistor is connected in parallel between the base and the emitter. The residual avalanche transistors all adopt the structure of an auxiliary trigger circuit to conduct the avalanche transistors, and the method specifically comprises the following steps: in the first-stage Marx circuit, an auxiliary trigger capacitor CF12One end of and an avalanche pipe Q11Is connected with an auxiliary trigger capacitor CF12Another terminal of (1) and a resistor RF12Connected in series to the avalanche pipe Q12Emitter electrode of (2), auxiliary trigger capacitor CF12Another end of (1) and an avalanche pipe Q12Is connected with the base electrode of the auxiliary trigger capacitor CF13And an auxiliary trigger capacitor CF12The other end is connected with an auxiliary trigger capacitor CF13And the other end of the auxiliary trigger resistor RF13Connected in series to the avalanche pipe Q13Emitter electrode of (2), auxiliary trigger capacitor CF13Another end of (1) and an avalanche pipe Q13The base electrodes are connected; in the second-stage Marx circuit of the Marx loop, an auxiliary trigger capacitor CF21And a discharge isolation resistor RC1’Is connected with an auxiliary trigger capacitor CF21And the other end of the auxiliary trigger resistor RF11Connected in series to the avalanche pipe Q21Emitter electrode of (2), auxiliary trigger capacitor CF21Another end of (1) and an avalanche pipe Q21Is connected with the base electrode of the auxiliary trigger circuitContainer CF22And an auxiliary trigger capacitor CF21One end of the capacitor is connected with the auxiliary trigger capacitor CF22And the other end of the auxiliary trigger resistor RF22Connected in series to the avalanche pipe Q22Emitter electrode of (2), auxiliary trigger capacitor CF22Another end of (1) and an avalanche pipe Q22Is connected with the base electrode of the auxiliary trigger capacitor CF23One terminal of and a capacitor CF22One end of the capacitor is connected with the auxiliary trigger capacitor CF23And the other end of the auxiliary trigger resistor RF23Connected in series to the avalanche pipe Q23Emitter electrode of (2), auxiliary trigger capacitor CF23Another end of (1) and an avalanche pipe Q23The base electrodes are connected; in a third-stage Marx circuit of a Marx loop, an auxiliary trigger capacitor CF31And a discharge isolation resistor RC2’Is connected with an auxiliary trigger capacitor CF31And the other end of the auxiliary trigger resistor RF31Connected in series to the avalanche pipe Q31Emitter electrode of (2), auxiliary trigger capacitor CF31Another end of (1) and an avalanche pipe Q31Is connected with the base electrode of the auxiliary trigger capacitor CF32And an auxiliary trigger capacitor CF31Connected to an auxiliary trigger capacitor CF32And the other end of the auxiliary trigger resistor RF32Connected in series to the avalanche pipe Q32Emitter electrode of (2), auxiliary trigger capacitor CF32Another end of (1) and an avalanche pipe Q32Is connected with the base electrode of the auxiliary trigger capacitor CF33And an auxiliary trigger capacitor CF32Connected to an auxiliary trigger capacitor CF33The other end and an auxiliary trigger resistor RF33Connected in series to the avalanche pipe Q33Emitter electrode of (2), auxiliary trigger capacitor CF33The other end and the avalanche pipe Q33Are connected to each other.
In this embodiment, the high voltage dc power supply voltage Vcc for supplying power to each stage LTD is set to + 960V. Meanwhile, the working process of the whole process is as follows: firstly, a 2-stage LTD circuit board is connected in series, then a high-voltage direct-current power supply is turned on, and after the charge current index is stable, a signal generator is turned on to generate trigger pulses. The base electrode of the first avalanche transistor of the first stage Marx circuit of each subarea in each stage of LTD circuit receives a trigger pulse signal to conduct, then due to potential difference, from bottom to top and from left to right, an auxiliary trigger pulse is sequentially generated on an auxiliary trigger resistor of each stage of trigger circuit by an auxiliary trigger capacitor to enable each avalanche transistor to conduct sequentially, the Marx circuit of each subarea generates an output voltage pulse of 9 times of the static voltage of the avalanche transistor, then the output voltage pulse of each Marx circuit of each subarea discharges around a magnetic core through a conductor, the number of the primary side of the transformer is equal to 1 turn, secondary sides of each stage of LTD are the same conductor, 2 stages of LTD circuits conduct simultaneously, and nanosecond pulse voltages of 2 times of the single-pole LTD output voltage are superposed and output on the secondary sides in series.
In this embodiment, the charging voltage of the main discharge capacitor is 960V, the main discharge capacitor is composed of 2-stage LTD circuit boards, each stage of LTD circuit is composed of 4 partitions, each partition is composed of one 3-stage Marx circuit, each stage is composed of 3 avalanche transistors connected in series, all the Marx circuits adopt an auxiliary trigger structure, the output end of the whole pulse power supply is open-circuited, the obtained output voltage waveform diagram is shown in fig. 4, the pulse amplitude is 5.56kV, the leading edge (10% -90%) is 4.08ns, the half-height width is 5.92ns, and the maximum repetition frequency is 5 kHz.
The output voltage of each stage of LTD can be improved by adopting the Marx circuit with the multiple avalanche transistors connected in series, and the LTD circuit has the advantages that the whole output voltage is broken into parts, the requirement on the insulation level is low, so that the whole device can be very compact, the structural inductance is reduced, the front edge of the output voltage is faster, and the utilization efficiency of energy is higher; the combination of the Marx circuit and the LTD circuit is adopted, compared with the traditional Marx circuit, the current born by the avalanche transistor in the Marx circuit in the LTD circuit of each stage can be changed into 1/m of the original current, and the Marx LTD circuit can be applied to occasions with high load impedance and occasions with low load impedance. By combining the Marx circuit and the LTD circuit, the current borne by the avalanche tube in the Marx circuit in each stage of LTD circuit is changed to be 1/m, the heat capacity of each avalanche tube is increased, and the avalanche tube can work at higher repetition frequency. The N-stage Marx circuits of each partition of each stage of LTD circuit can be equivalent to output voltage to the primary side of the magnetic core after being connected in parallel, and compared with the N-stage Marx circuits of one partition, the equivalent internal resistance of a power supply is reduced, the amplitude of output pulses can be effectively improved, and the energy utilization efficiency is improved.
While the invention has been described in terms of specific embodiments, it will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. A pulse power supply based on a avalanche diode Marx generator and an LTD circuit is characterized by comprising a high-voltage direct-current power supply (1), a trigger unit (2) and an M-level LTD circuit, wherein each level of LTD circuit comprises M partitions, each partition comprises an N-level Marx circuit, each level of Marx circuit comprises N avalanche diodes which are connected in series, the trigger unit (2) is connected with a trigger input end of each level of LTD circuit, the high-voltage direct-current power supply 1 is connected with a charging loop of each level of LTD circuit, a secondary side of the M-level LTD circuit is connected in series to output high-voltage nanosecond pulses, M is larger than or equal to 1, M is larger than or equal to 1, and N is larger than or equal to 1.
2. A pulsed power supply based on Marx generator and LTD circuit in avalanche transistors, according to claim 1, characterized by that the trigger unit (2) is connected to the base of the first avalanche transistor of the first Marx circuit in each partition.
3. The pulse power supply based on the Marx generator and the LTD circuit of the avalanche transistors is characterized in that the Marx circuit comprises n avalanche transistors which are connected in series, wherein an emitter of a first avalanche transistor is grounded, a base of the first avalanche transistor is connected with the trigger unit (2), a collector of the first avalanche transistor is connected with an emitter of an adjacent avalanche transistor, a collector of a previous avalanche transistor in the middle is connected with an emitter of a next avalanche transistor, and a collector of a last avalanche transistor is connected with a charging resistor.
4. The pulse power supply based on the Marx generator and the LTD circuit of the avalanche transistor is characterized by further comprising an auxiliary trigger circuit connected to the Marx circuit.
5. The avalanche transistor Marx generator and LTD circuit-based pulse power supply according to claim 4, wherein an auxiliary trigger circuit is connected to the front a-stage Marx circuit in each N-stage Marx circuit of each partition; the rear N-a-stage Marx circuit is not connected with the auxiliary trigger circuit, wherein a is more than or equal to 0 and less than or equal to N.
6. The pulse power supply based on the Marx generator and the LTD circuit of the avalanche diode as claimed in claim 4, wherein the auxiliary trigger circuit comprises an auxiliary trigger capacitor and an auxiliary trigger resistor, two ends of the auxiliary trigger resistor are connected in parallel with the base and the emitter of one avalanche diode, and two ends of the auxiliary trigger capacitor are respectively connected with the bases of two adjacent avalanche diodes.
7. A pulse power supply based on a Marx generator and LTD circuit of avalanche transistors according to claim 1, characterized by that the trigger unit (2) uses a signal generator.
8. The pulse power supply based on the Marx generator and the LTD circuit of the avalanche transistor is characterized in that the signal generator is connected with the LTD circuit of each stage through a power divider.
CN202011555807.3A 2020-12-24 2020-12-24 Pulse power supply based on avalanche diode Marx generator and LTD circuit Pending CN112636724A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113708743A (en) * 2021-09-03 2021-11-26 湖北工业大学 Short-delay high-amplitude low-leading-edge high-voltage pulse generation device
CN114665845A (en) * 2022-03-01 2022-06-24 电子科技大学 High-peak power pulse source based on high-voltage triggering and power synthesis
CN114665845B (en) * 2022-03-01 2023-12-22 电子科技大学 High-peak power pulse source based on high-voltage triggering and power synthesis

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