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Linkage device for AC two-wire type solid state switch

A technology of solid-state switches and interlocking devices, which is applied in the direction of automatic disconnection emergency protection devices, electronic switches, circuit devices, etc., and can solve the problems that there is no prior technology of AC two-wire solid-state switch interlocking devices

Active Publication Date: 2008-01-30
SHANGHAI CHENGJIA ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no prior art of AC two-wire solid-state switch linkage device

Method used

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  • Linkage device for AC two-wire type solid state switch
  • Linkage device for AC two-wire type solid state switch
  • Linkage device for AC two-wire type solid state switch

Examples

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Embodiment Construction

[0011] In Figure 1, A, B, and C are three units, and P1, P2, P3, and P4 are four optocouplers. The three-phase unit linkage device is mainly composed of these three units and four optocouplers, and B is Master control unit, A and C are controlled units. In the figure, S is a three-phase power supply, L is a three-phase load, and the six external connection terminals of the above three units are respectively connected to the three-phase power supply and the three-phase load. In the figure, terminal b2 is the common contact of the control circuit inside the main control unit B, and terminal b1 is the output terminal of the control circuit inside the main control unit B. When the control circuit inside the main control unit B has an output signal, the main control unit B The internal bidirectional main circuit current component is turned on, that is, the main control unit B is "on", otherwise the internal bidirectional main circuit current component of B is turned off, that is, t...

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Abstract

The invention pertains to a subsequent invention which is an expansion of the document contents of Chinese invention patents ZL94112284.0 and ZL94114032.6, and that of an American patent US5831349. The invention relates to the technic proposals of a plurality of linkage devices of AC double-lined solid switches. The AC double-lined solid switches of the linkage devices have to be AC double-lined switches of non-contact switching type which are used in the main circuit in the three patents, therefore, the AC double-lined solid switches in the brochure are the AC double-lined switches of the non-contact switching type which are used in the main circuit of the three patents. The invention aims to enable a plurality of or numerous AC double-lined solid switches through the technic proposal of being combined into the linkage device to achieve the uniform switching, thereby expanding the application range of the AC double-lined solid switches from single-phase circuits to three-phase circuits, and from the low voltage network to the high voltage network.

Description

Technical field [0001] The present invention is a follow-up invention based on the content of Chinese invention patents ZL94112284.0 and ZL94114032.6 and the content of the US patent US5831349. [0002] The invention relates to several linkage device technical schemes called AC two-wire solid-state switches. All the AC two-wire solid-state switches involved in these linkage devices must be AC ​​two-wire switches in the form of non-contact on-off for the main circuit in the above three patents, so the AC two-wire solid-state switch referred to in this manual refers specifically to the above three In the first patent, the main circuit uses an AC two-wire switch in the form of non-contact on-off. Background technique [0003] At present, there is no prior art of an AC two-wire solid-state switch linkage device. For the background technology and details of the AC two-wire solid-state switch, refer to the above three patent documents. Contents of the invention [0004] The p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/00H03K17/78H02H3/253H02H3/08
CPCH03K17/78
Inventor 翁天禄
Owner SHANGHAI CHENGJIA ELECTRONICS TECH
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