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A load matching device and method for a high-voltage pulse power supply

A high-voltage pulse power supply and load matching technology, which is applied in the field of load matching devices, can solve problems such as difficult implementation, and achieve the effect of reducing overshoot and improving load matching conditions

Active Publication Date: 2019-10-11
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as parameters such as voltage amplitude and frequency change, the degree of influence of parasitic capacitance and inductance on the load also changes, so this compensation method is actually difficult to achieve

Method used

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  • A load matching device and method for a high-voltage pulse power supply
  • A load matching device and method for a high-voltage pulse power supply
  • A load matching device and method for a high-voltage pulse power supply

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] In the case of load mismatch, the overshoot, undershoot and ringing of the high-voltage pulse waveform output by the high-voltage pulse power supply are suppressed and weakened by the method of high-voltage pulse waveform parameter compensation, which improves and optimizes the Matching condition of the output load. This method of load matching is based on the basic structure of the pulse power supply with the control module and the switch group module as the core, such as figure 1 shown. The functional structure of the pulse power supply is composed of a control module 1 , a switch group module 2 , an external DC power supply module 3 and an output terminal 4 . Wherein, the external DC power supply module 3 is used to drive the switch group module and provide a certain DC working voltage to both ends of each switch group. The control module 1 will generate a...

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Abstract

The invention discloses a load matching device and a load matching method for a high-voltage pulse power supply. M switches are coupled together in a serial manner to form a complete switching group module. In the m switching groups, pulse voltages generated by the switching groups are not completely identical due to different turn-on and turn-off sequences and delays; the required high-voltage pulse can be generated at an output end after the pulse voltages are overlapped. The switching group module is controlled by the control module, and can directly receive control signals transmitted by the control module; under the effect of the control signals, the working state of each switching group in the switching group module can be controlled. Therefore, under the cooperation of the control module and the switching group module, the working state of the switching group is adjusted, the high-voltage pulse waveform of the output end can be adjusted, and thus the matching condition between the high-voltage pulse and load is improved, and matching between the high-voltage pulse and the load is achieved.

Description

technical field [0001] The invention relates to a load matching device, in particular to a load matching device and method for a high-voltage pulse power supply. Background technique [0002] In the actual use of high-voltage pulse power supply, with the change of load, the output high-voltage pulse is often accompanied by different degrees of overshoot, undershoot, ringing and other phenomena, resulting in the actual high-voltage pulse waveform can not reach the ideal situation. Among them, the overshoot may cause the amplitude of the signal to exceed the allowable range of the normal operation of the circuit and the device; the appearance of the undershoot will make the waveform amplitude lower than the threshold of the signal judgment in some cases and cause errors; the ringing phenomenon is different In some applications, it may interfere with the normal reception of the output signal. Therefore, when phenomena such as overshoot, undershoot, and ringing are significant,...

Claims

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Application Information

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IPC IPC(8): H02M9/02
Inventor 张小宁孙岳屠震涛张军
Owner XI AN JIAOTONG UNIV
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