High-speed damped oscillation generating circuit

Abstract

The utility model provides a high-speed damped oscillation generating circuit, which comprises a damping generating module 4 for generating high-speed pulses, the damping generating module 4 comprises a high-voltage end HV + and a low-voltage end HV-which are connected with a high-voltage power supply module 3, and a pulse output port BNC1 for outputting the pulses, a resistor R1, a relay switch K1, an inductor L2 and a resistor R2 are sequentially connected in series between the high-voltage end HV + and the pulse output port BNC1, a capacitor C1 is connected in series between the first end of the relay switch K1 and the low-voltage end HV-, and an inductor L1 is connected in series between the second end of the relay switch K1 and the low-voltage end HV-; a relay corresponding to the relay switch K1 is connected with the main control module 2, the relay is a novel tungsten contact vacuum relay, and the relay switch K1 is a semiconductor switch. According to the high-speed pulse generator, a simple circuit can be used, and high-speed pulses meeting the national military standard GJB 151B 2013CS116 can be generated.

Description

TECHNICAL FIELD

[0001] The utility model relates to high speed pulse generation technical field, concretely relates to a high speed damping oscillation generating circuit. BACKGROUND

[0002] Pulse technology is a main basic technology of modern electronic technology, and the advancement of high speed pulse generation technology is mainly embodied in the frequency, precision, amplitude, fast edge and the like of generated signals, and the super high speed pulse generator can guarantee pulse frequency and precision.

[0003] At present, with the increase of signal frequency, signal attenuation is serious, and a bottleneck is generated for the demand of high speed, super high speed and large amplitude signals, and the root cause is that the slew rate of the present operational amplifier is influenced by manufacturing technology, so that the slew rate index required for generating high speed pulses cannot be reached, and therefore a pulse generation current is required. UTILITY MODEL CONTENT

[0004] Therefore, the utility model wants to solve the problem to provide a high speed damping oscillation generating circuit, which can use a simple circuit to generate high speed pulses meeting the national military standard GJB 151B 2013 CS116.

[0005] To solve the above technical problem, the utility model adopts the technical scheme that:

[0006] A high speed damping oscillation generating circuit, comprising a damping generation module 4 for generating high speed pulses, the damping generation module 4 comprises a high voltage end HV+ connected with a high voltage power module 3, a low voltage end HV-, a pulse output port BNC1 for outputting pulses, a resistance R1, a relay switch K1, an inductor L2 and a resistance R2 are sequentially connected between the high voltage end HV+ and the pulse output port BNC1, a capacitor C1 is connected between the 1 end of the relay switch K1 and the low voltage end HV-, and an inductor L1 is connected between the 2 end of the relay switch K1 and the low voltage end HV-.

[0007] The relay corresponding to the relay switch K1 is connected with a main control module 2, the relay is a new type of tungsten contact vacuum relay, and the relay switch K1 is a semiconductor switch.

[0008] Further, the 1 end of the relay switch K1 is connected with the drain of a MOS tube Q1, the 2 end of the relay switch K1 is connected with the source of the MOS tube Q1, and the gate of the MOS tube Q1 is connected with the main control module 2.

[0009] Further, the main control module 2 is connected with a display touch screen module 1, a high voltage power module 3 and a switching power module 6 respectively.

[0010] Further, the capacitor C1 is a high-voltage capacitor, which is used to provide fixed high-voltage for the inductor L1 and the inductor L2.

[0011] Further, the inductor L2 is connected with the pulse output port BNC1 in series with the resistor R2, which is used to adjust the pulse current.

[0012] The high-speed damping oscillation generation circuit has the advantages and positive effects that:

[0013] By arranging the high-voltage capacitor C1, the inductor L1 and the inductor L2, the inductor L1 and the capacitor C1 form a loop, and the inductor L2 is used for oscillation output. When the capacitor C1 is connected with the inductor L1 and the inductor L2, the inductor L1 is charged, and the current flowing through the inductor L2 gradually increases.

[0014] By using the novel tungsten contact vacuum relay and the semiconductor relay switch K1, based on the high-voltage resistance, long service life, low contact resistance and good arc extinguishing performance of the vacuum relay switch, the high-voltage electric energy can be smoothly circulated at the switch, so as to generate a high-frequency large-current pulse, which meets the national military standard GJB 151B 2013CS116. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application.

[0016] Figure 1 is a whole structure diagram of a high-speed damping oscillation generation circuit of the present application;

[0017] Figure 2 is a diagram of a high-speed damping oscillation generation circuit of the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "and / or" includes a set of one or more associated listed items.

[0020] The utility model provides a kind of high-speed damping oscillation generation circuit, as shown in the oscillation generation system, including display touch screen module 1 and main control module 2, display touch screen module 1 and main control module 2 data intercommunication, main control module 2 is connected with damping generation module 4 by high voltage power module 3, for damping generation module 4 power supply, main control module 2 is connected with damping generation module 4 and switching power module 6 respectively, switching power module 6 is used to power supply main control module 2, main control module 2 is used to control damping generation module 4 action to generate pulse. Figure 1

[0021] When oscillation generation system runs: staff inputs pulse parameter on display touch screen module 1, pulse parameter is transmitted to main control module 2, main control module 2 controls high voltage power module 3 to output set pressure electric energy according to pulse parameter, main control module 2 controls the action in damping generation module 4 according to pulse parameter, to output specific frequency pulse.

[0022] As shown in Figure 2 Damping generation module 4 includes high voltage end HV+, low voltage end HV-, pulse output port BNC1 of output pulse, which is connected with high voltage power module 3, low voltage end HV- is directly connected with pulse output port BNC1, resistance R1, relay switch K1, inductance L2 and resistance R2 are sequentially connected between high voltage end HV+ and pulse output port BNC1, the relay corresponding to relay switch K1 is connected with main control module 2, capacitor C1 is connected between the 1 end of relay switch K1 and low voltage end HV-, and inductance L1 is connected between the 2 end of relay switch K1 and low voltage end HV-.

[0023] The 1 end of relay switch K1 is connected with the drain of MOS tube Q1, the 2 end of relay switch K1 is connected with the source of MOS tube Q1, and the gate of MOS tube Q1 is connected with main control module 2.

[0024] One embodiment of the application is that: the relay is a new type of tungsten contact vacuum relay, the relay switch K1 is a semiconductor switch, the capacitor C1 is a high voltage capacitor, used to provide fixed high voltage for inductance L1 and inductance L2. Because the vacuum relay has high voltage resistance, long service life, low contact resistance and good arc extinguishing performance, the high voltage electric energy can flow through the relay switch K1, the current on inductance L1 and inductance L2 changes quickly, and the high frequency pulse meeting the national standard is generated. ​

[0025] Based on the high-voltage characteristics of the relay switch K1, it is used as a large current 1M, 10M, 30M, 100M, the MOS tube Q1 is used as a low current 10k, 100k due to the characteristics of fast switching speed and low switching loss, the high-speed pulse conforms to the national military standard GJB 151B 2013CS116, and the output current is: 10kHz≥0.1A, 100kHz≥1A, 1MHz≥10A, 10MHz≥10A, 30MHz≥10A, 100MHz≥3A.

[0026] The operation process of the damping generation module 4 is as follows: first step: the high-voltage end HV+ and the low-voltage end HV- are powered on, the relay switch K1 is disconnected or the MOS tube Q1 is not conductive, and the capacitor C1 is charged;

[0027] Second step: the relay switch K1 is closed or the MOS tube Q1 is conductive, the inductor L1 is charged, and the current flowing through the inductor L2 gradually increases;

[0028] Third step: the relay switch K1 is disconnected or the MOS tube Q1 is not conductive, the capacitor C1 is charged, the inductor L1 is discharged, and the current flowing through the inductor L2 gradually decreases.

[0029] The main control module 2 controls the relay switch K1 or the MOS tube Q1 to cycle the second step and the third step, and the pulse output port BNC1 outputs the pulse waveform.

[0030] The resistor R1 is used to control the charging voltage of the capacitor C1, the inductor L1 and the inductor L2 form an LC oscillation to output a pulse, and the resistor R2 is used to control the fluctuation range of the current of the pulse. By adjusting the resonant frequency by changing the C1 capacitance value, the inductor L1 size, and the inductor L2 size in the circuit, a plurality of damping oscillation waves can be generated.

[0031] The above embodiments of the utility model are described in detail, but the content described is only the preferred embodiment of the utility model, and cannot be considered as limiting the scope of the utility model. Any equivalent changes and improvements within the scope of the utility model should still belong to the scope of the patent.

Claims

1. A high-speed damped-oscillation generation circuit, characterized by comprising: The application relates to a high-speed pulse generator, which comprises a damping generation module (4) for generating high-speed pulses, wherein the damping generation module (4) comprises a high-voltage end HV+ connected with a high-voltage power module (3), a low-voltage end HV-, and a pulse output port BNC1 for outputting pulses; a resistor R1, a relay switch K1 and an inductor L2 are connected in sequence between the high-voltage end HV+ and the pulse output port BNC1; a capacitor C1 is connected in series between a 1 end of the relay switch K1 and the low-voltage end HV-; and an inductor L1 is connected in series between a 2 end of the relay switch K1 and the low-voltage end HV-. A relay corresponding to the relay switch K1 is connected with a main control module (2), the relay is a new type of tungsten contact vacuum relay, and the relay switch K1 is a semiconductor switch.

2. A high speed damped oscillator generation circuit as claimed in claim 1, characterized in that A 1 end of the relay switch K1 is connected with a drain of a MOS tube Q1, a 2 end of the relay switch K1 is connected with a source of the MOS tube Q1, and a gate of the MOS tube Q1 is connected with the main control module (2).

3. A high speed damped oscillator generation circuit as claimed in claim 1, wherein, The main control module (2) is connected with a display touch screen module (1), the high-voltage power module (3) and a switching power module (6) respectively.

4. A high speed damped oscillator generation circuit according to claim 1, wherein, The capacitor C1 is a high-voltage capacitor, and is used for providing high-voltage electricity for the inductor L1 and the inductor L2.

5. A high speed damped oscillator generation circuit according to claim 1, wherein, A resistor R2 is connected in series between the inductor L2 and the pulse output port BNC1, and is used for adjusting a pulse current.

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