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Alarm circuit

A technology of alarm circuit and alarm, applied in the electronic field, can solve problems such as pollution of integrated circuits and semiconductor components, failure of electronic equipment, electromagnetic interference, etc., and achieve the effect of avoiding adverse effects and avoiding static electricity

Inactive Publication Date: 2014-06-04
SHENZHEN OCEANS KING LIGHTING ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when the grounding wire is open, there will be static electricity due to poor grounding. The static electricity will break down integrated circuits and precision electronic components, or promote the aging of components, causing malfunctions or malfunctions of electronic equipment, resulting in electromagnetic interference
In addition, static electricity will also absorb dust, causing pollution to integrated circuits and semiconductor components, greatly reducing the yield, and causing great economic losses to production

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] refer to figure 1 , the alarm circuit of the present invention may include a ground wire 11 and a return line 12 for grounding; a detection circuit 20 for detecting whether the ground wire 11 and the return line 12 are connected; and when the detection circuit 20 detects When the ground wire 11 and the return wire 12 are disconnected, the alarm control circuit 30 is used to drive the alarm 40 to alarm; and the alarm 40 is used to alarm.

[0025] Further, re...

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Abstract

The invention discloses an alarm circuit. On the basis that a grounding wire is grounded, a loop wire is added and grounded simultaneously. Good grounding performance is determined through a detection circuit for detecting whether the grounding wire and the loop wire are connected. When the detection circuit detects that the grounding wire and the loop wire are disconnected, an alarm is driven by an alarm control circuit to alarm. Therefore, real-time detection on and reminding for grounding open circuit are realized, static electricity due to poor grounding can be avoided, and the adverse effects of static electricity on an integrated chip and / or an electronic component with a grounding wire can be avoided.

Description

technical field [0001] The invention relates to the field of electronics, in particular to an alarm circuit. Background technique [0002] Static electricity is a charge in a static state. At present, when the grounding wire is open, static electricity will appear due to poor grounding. The static electricity will break down integrated circuits and precision electronic components, or promote the aging of components, causing malfunctions or malfunctions of electronic equipment, resulting in electromagnetic interference. In addition, static electricity will also absorb dust, causing pollution of integrated circuits and semiconductor components, greatly reducing the yield, and causing great economic losses to production. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an alarm circuit, which can send out an alarm signal in time when the ground wire is open, so as to avoid static electricity due to poor grounding. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
Inventor 周明杰王现中
Owner SHENZHEN OCEANS KING LIGHTING ENG CO LTD
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