High-voltage heavy-current electronic switch

An electronic switch and high current technology, which is applied in the direction of electronic switches, electrical components, pulse technology, etc., can solve the problems of electronic switch capacity limitation and unusability, and achieve the effect of increasing voltage and current capacity and increasing device voltage

Active Publication Date: 2011-04-27
上海电科智能装备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the electronic switch capacity composed of a single power electronic device is also limited, and cannot be used in occasions with higher voltage and higher current.

Method used

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  • High-voltage heavy-current electronic switch
  • High-voltage heavy-current electronic switch

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] figure 1 It is a series-parallel circuit diagram of switching thyristors of high-voltage and high-current electronics of the present invention; figure 2 It is a circuit diagram of a drive isolation circuit for high-voltage and high-current electronics of the present invention.

[0016] See figure 1 and figure 2 , the high-voltage and high-current electronic switch provided by the present invention includes a thyristor circuit, a driving isolation circuit and a driving circuit, wherein the thyristor circuit is formed by connecting multiple groups of thyristors T in series and parallel, and the driving isolation circuit adopts the same number of thyristors T in series. An isolation transformer, the magnetic core of the isolation transformer adopts a ring magnetic core, and the primary sides of all the isolation transformers are the same high-v...

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Abstract

The invention discloses a high-voltage heavy-current electronic switch, which comprises a transistor circuit, a drive isolation circuit and a drive circuit. The transistor circuit comprises multiple groups of transistors T in series-parallel connection; the drive isolation circuit adopts isolation transformers of the same number as the transistors T in serial connection; the magnetic core of each isolation transformer is an annular magnetic core; the primary sides of all isolation transformers are the same high-voltage lead A resisting voltage of over 10,000 V; the high-voltage lead A continuously passes through the inner rings of all magnetic cores once; the secondary sides of the isolation transformers are multiple leads a1-a6 winding the annular magnetic cores at the same time; and each secondary side drives a transistor T. Through the high-voltage heavy-current electronic switch disclosed by the invention, the voltage and current capacity of an electronic device can be quickly and stably improved, the drive is simple and the cost is low.

Description

technical field [0001] The invention relates to an electronic switch, in particular to a high-voltage and high-current electronic switch, which belongs to the field of large-capacity power electronic devices. Background technique [0002] Since the forward and reverse voltages that a single power electronic device can withstand are certain, the magnitude of the current that can pass is also certain. Therefore, the electronic switch capacity composed of a single power electronic device is also limited, and cannot be used in occasions with higher voltage and higher current. Therefore, it is necessary to improve the existing electronic switch to increase the voltage and current capacity of the device, so that it can be used in a switching circuit with a voltage up to 9000Vmax and an instantaneous current of 1500A max (50us). Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high-voltage and high-current electronic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/56
Inventor 张志强寿建霞钱振宇
Owner 上海电科智能装备科技有限公司
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