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High-voltage large-current electronic switch

An electronic switch and high current technology, applied in electronic switches, electrical components, pulse technology, etc., can solve problems such as glitches, unstable waveforms, and low control timing accuracy

Inactive Publication Date: 2013-02-20
SHANGHAI PRIMA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general disadvantages of these switches are mechanical switches, which cause the voltage pulse waveform to jitter, the control timing accuracy is not high, the waveform is unstable, and the consistency is poor. Especially when the voltage is around 100V to 300V at the low end, the front of the waveform is not smooth and has burrs, resulting in current waves. The waveform is unstable

Method used

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Embodiment

[0019] Such as figure 1 , a high-voltage high-current electronic switch, including a high-voltage processing module 1, a thyristor control module 2, and a thyristor drive circuit 3, the high-voltage processing module 1 is connected to the thyristor control module 2, and the thyristor control module 2 is connected to the thyristor drive circuit. Circuit 3.

[0020] The high-voltage processing module is composed of at least two IGBTs connected in series. When conducting at the same time, each tube will divide the voltage at the same time, so that the device will not be damaged. The pins between each tube should be thickened to meet the needs of the current and prevent heat generation. Finally, it is potted with epoxy resin glue to achieve high pressure resistance.

[0021] The thyristor drive is tailored according to the conduction characteristics of the thyristor. After the thyristor is turned on once, it will not be turned off. There are two ways to turn off the thyristor:...

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Abstract

The invention relates to a high-voltage large-current electronic switch which comprises a high-voltage processing module, a thyristor control module and a thyristor driving circuit. The high-voltage processing module is connected with the thyristor control module, and the thyristor control module is connected with the thyristor driving circuit. Compared with the prior art, the high-voltage large-current electronic switch has the advantages of being wide in application range, high in stability and the like.

Description

technical field [0001] The invention relates to an electronic switch, in particular to a high-voltage and high-current electronic switch. Background technique [0002] As the name implies, high voltage and high current is a pulse current with relatively high voltage and relatively large energy. Now the conventional switch is an electromagnetic relay or an electromagnetic mercury switch contactor. The general disadvantages of these switches are mechanical switches, which cause the voltage pulse waveform to jitter, the control timing accuracy is not high, the waveform is unstable, and the consistency is poor. Especially when the voltage is around 100V to 300V at the low end, the front of the waveform is not smooth and has burrs, resulting in current waves. The waveform is unstable. Contents of the invention [0003] The object of the present invention is to provide a high-voltage and high-current electronic switch with wide application range and high stability in order to o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/567
Inventor 毛文斌顾建军
Owner SHANGHAI PRIMA ELECTRONICS