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Pulse modulator high voltage stabilization device

A technology of pulse modulator and stabilizing device, which is applied in the field of front-end pulse modulator of accelerator microwave power source, can solve problems such as unstable high-voltage output and unstable output characteristics of high-voltage charging power supply, and achieve improved output stability, simple structure, and principle clear effect

Pending Publication Date: 2019-06-25
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the pulse modulator works at a high repetition frequency of 50Hz, the output characteristics of the high-voltage charging power supply begin to become unstable, and the high voltage at the outlet of the high-voltage charging power supply generally cannot reflect the high-voltage value of the PFN in the pulse modulator. Here comes the negative effect of high voltage output instability

Method used

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  • Pulse modulator high voltage stabilization device
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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 , 2 As shown, the high-voltage stabilizing device of the pulse modulator includes: a voltage acquisition device, a voltage comparison device and a charging cut-off device;

[0023] The voltage acquisition device includes a high-voltage divider probe 6 and a signal collector 7; the input end of the high-voltage divider probe 6 is connected to the PFN5 for collecting voltage signals on the PFN5, and the output end of the high-voltage divider probe 6 is connected to the signal acquisition through a data transmission line device 7;

[0024] The input terminal of the signal collector 7 is used to collect the voltage signal output by the high voltage divider probe 6, the output terminal of the signal collector 7 is connected with the voltage comparison device, and the signal collector 7 converts the analog signal collected by the h...

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Abstract

The invention discloses a pulse modulator high voltage stabilization device. When a high-voltage charging power supply is working, the charging voltage of the high-voltage charging power supply is slightly increased, the voltage of a PFN is collected by a high voltage dividing probe, the voltage signal is processed and monitored, and the values of the supply voltage of the PFN and a set voltage are compared in real time. A thyratron is added between the high-voltage charging power supply and a pulse modulator. When the voltage of the PFN reaches a set value, the thyratron is cut off to stop charging, thus ensuring the voltage stability of the PFN.

Description

technical field [0001] The invention relates to a pulse modulator voltage stability stabilizing device, in particular to the field of pulse modulators applied to the front-end of microwave power sources of accelerators. Background technique [0002] The klystrons of Dalian Coherent Light Source adopt two types of E3730A and E3712 produced by Toshiba. The technical scheme of voltage output can make the stability of the microwave pulse amplitude of the klystron reach 0.06% rms. [0003] In the process of charging the pulse modulator by the high-voltage charging power supply, since there is no feedback device, the high-voltage value at the outlet of the high-voltage charging power supply is generally used as the feedback point for the completion of the high-voltage charging power supply. When the pulse modulator works at a high repetition frequency of 50Hz, the output characteristics of the high-voltage charging power supply begin to become unstable, and the high voltage at th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M9/00
Inventor 丁洪利张未卿杨家岳史磊陶凯余永李钦明杨学明
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI