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Narrow pulse width pulse output circuit

A pulse output circuit and narrow pulse width technology, applied in pulse shaping and other directions, can solve the problems of slow turn-off speed of the switch tube, low phase consistency between power pulse and control signal, etc., to reduce the turn-off current and prevent reverse Oscillating, easy-to-control effects

Pending Publication Date: 2019-01-04
XJ POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a narrow pulse width pulse output circuit, which is used to solve the problem of low phase consistency between the power pulse and the control signal due to the slow turn-off speed of the switching tube in the narrow pulse width pulse output circuit in the prior art. question

Method used

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  • Narrow pulse width pulse output circuit

Examples

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Effect test

Embodiment 1

[0025] The circuit includes a power pulse generating module, an energy storage unit and a switch tube are arranged in the power pulse generating module, and the energy storage unit provides pulse output energy for the power pulse generating module.

[0026] Such as figure 1 As shown, the power pulse generation module includes a first energy storage unit C1 and a main POWER MOSFET Q1 (ie, the first switch tube). The power supply VCC is connected to the drain of the main POWERMOSFET Q1 through the series connected resistor R1 and inductor L1 (R1 and L1 are the first resistive load), and the gate of the main POWER MOSFET Q1 is connected to the control signal VIN+, which is also the narrow pulse width pulse The control signal V1 of the output circuit, the source of the main POWER MOSFET Q1 is grounded. The power supply VCC is also grounded through the bus capacitor C3 to stabilize the voltage of the power supply VCC.

[0027] The drain of the main POWER MOSFET Q1 is also grounde...

Embodiment 2

[0035] On the basis of Embodiment 1, the circuit adds a pulse signal amplification module, that is, includes a pulse signal amplification module and a power pulse generation module. Both the pulse signal amplification module and the power pulse generation module are provided with an energy storage unit and a switch tube, and the corresponding energy storage unit provides pulse output energy for the pulse signal amplification module and the power pulse generation module respectively. The pulse signal amplification module releases part of the energy of the energy storage unit in the pulse signal amplification module by controlling the switching on and off of the switch tube in the pulse signal amplification module, and amplifies and controls the driving power of the pulse signal; the power pulse generation module, through the pulse signal The output of the amplifying module is used to control the switching on and off of the switching tube in the power pulse generating module, and...

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Abstract

The invention relates to a narrow pulse width pulse output circuit comprising a first switching tube and a power supply. The control end of the first switching tube is used for connecting a control signal, and the output end is grounded. The power supply is grounded through a bus capacitor and is also connected with the input end of the first switching tube through a first resistance-inductance load. The input end of the first switching tube is also grounded through a first energy storage unit and a second resistance-inductance load which are series connected. The series connection point of the first energy storage unit and the second resistance-inductance load is used for outputting narrow pulse width pulses. The narrow pulse width pulse output circuit has simple and reliable control andcan realize amplification of the pulse signal power with the pulse width from 200ns to 200mus so as to improve the consistency between the circuit output and the control signal.

Description

technical field [0001] The invention belongs to the technical field of pulse power, and in particular relates to a narrow pulse width pulse output circuit. Background technique [0002] In recent years, pulse power technology has developed rapidly and has been widely used in high-temperature plasma, pulsed strong magnetic field, high-energy laser processing, microwave detection and other fields. With the advancement of science and technology, narrower pulse width, more concentrated energy release, higher efficiency, and stronger reliability have become important development directions of pulse power technology. [0003] At present, there are many kinds of pulse devices on the market, but narrow pulse width pulse devices have always had a big problem in the precise control of pulse width. In the existing narrow-pulse-width pulse output circuit, the turn-off speed of the switching tube is generally slow, resulting in poor phase consistency with the control signal of the outpu...

Claims

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Application Information

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IPC IPC(8): H03K5/07H03K5/08
CPCH03K5/07H03K5/08Y02B70/10
Inventor 张明冉邹岩李振国张省宋军伟皇利杰冯进喜胡建超朱传涛
Owner XJ POWER CO LTD
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