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Interface circuits, substrates, electronic equipment and programmable controllers

A technology of interface circuits, electronic equipment, applied in the direction of electrical program control, program control, logic controller for automation/industrial process control, etc.

Active Publication Date: 2022-05-06
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case where the + terminal of the power circuit is grounded to the frame ground, if the electronic equipment is connected to other equipment with a common frame ground via the interface circuit, there is a possibility of short-circuit faults in other equipment

Method used

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  • Interface circuits, substrates, electronic equipment and programmable controllers
  • Interface circuits, substrates, electronic equipment and programmable controllers
  • Interface circuits, substrates, electronic equipment and programmable controllers

Examples

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Embodiment approach

[0028] figure 1 It is a figure which shows the structural example of the industrial equipment concerning embodiment of this invention. In this embodiment, the industrial equipment 1 which is an example of an electronic equipment is taken as an example and demonstrated. The industrial equipment 1 is equipment used in factories and the like. Hereinafter, the industrial equipment 1 will be described as one unit constituting the programmable controller. The electronic device according to the present invention is not limited thereto, as long as it has the interface circuit 7 for enabling connection with other electronic devices and may require insulation in the interface circuit. The interface circuit 7 can be mounted on an electronic device, and can be connected to other electronic devices.

[0029] like figure 1 As shown, the industrial equipment 1 has a power supply board 4 , a common board 5 and an inter-board connector 12 . The industrial device 1 can be connected to an e...

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PUM

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Abstract

The interface circuit (7) has: a connector (14), which can be connected with a personal computer; a communication circuit (13), which can generate a transmission signal to other electronic equipment; a first area, which is arranged between the connector (14) and Between the communication circuits (13), an insulating element (15) can be installed; wiring (51-58), which are used to connect the communication circuit (13) to the connector (14) via the first area; and wiring ( 81 to 86), which are used to connect the electronic circuit to the connector via areas other than the first area.

Description

technical field [0001] The present invention relates to an interface circuit that is mounted on electronic equipment and can be connected to other equipment, a substrate on which the interface circuit is mounted, electronic equipment, and a programmable controller. Background technique [0002] Electronic equipment represented by industrial equipment sometimes has a power supply circuit and an interface circuit for connecting with other equipment such as a personal computer. When the + terminal of the power supply circuit is grounded to the frame ground, if the electronic device is connected to another device having a common frame ground via the interface circuit, a short-circuit fault may occur in the other device. Therefore, by arranging insulating elements on the path including the power supply circuit and other equipment, short-circuit failure of other equipment is suppressed. [0003] As power supply circuits mounted in electronic equipment represented by industrial eq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K1/02G05B19/05H05K1/18
CPCG05B19/0423H05K1/0227H05K1/0256G05B19/05G05B2219/14075H05K1/115H05K1/18H05K7/1481H05K7/1484H05K2201/09227H05K2201/09954H05K2201/10022H05K2201/10053H05K2201/10189
Inventor 盐野谷浩生船越壮亮
Owner MITSUBISHI ELECTRIC CORP