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universal protector

A technology of protectors and shift registers, which is applied to emergency protection circuit devices, protections that respond to overvoltages, emergency protection devices that automatically disconnect, etc., can solve problems such as poor real-time performance, and achieve the effect of improving real-time processing capabilities

Active Publication Date: 2014-10-22
HUAINAN WANTAI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the analog input of the existing protector needs to use a separate A\D conversion module to convert the signal from analog to digital, and the converted signal is then sent to the processing chip for processing. In this way, the real time is poor and cannot meet the requirements.

Method used

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Embodiment Construction

[0032] The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing:

[0033] refer to figure 1 As shown, the general protector of this embodiment mainly includes an analog input circuit for receiving analog sampling current signals, leakage resistance signals and sampling voltage signals, and amplifying them for output; a logic action switching input circuit for Receive digital logic action signals input in parallel and output them serially; the first single-chip microcomputer with a built-in analog-to-digital converter is used to perform analog-to-digital conversion on the received sampling current signal, leakage resistance signal and sampling voltage signal, According to the digital sampling current signal, leakage resistance signal, sampling voltage signal and logic action signal, it is judged whether the back-end electrical equipment is working normally. If the operation is abnormal, the corresponding logic action...

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Abstract

The invention discloses a universal protector, which comprises an analog quantity input circuit, a logic action switching quantity input circuit, a first singlechip with a built-in analog-to-digital converter, a relay output circuit, a parameter setting switching quantity input circuit and a second singlechip. Obviously, a processor of the universal protector is a double-processor structure consisting of the first singlechip and the second singlechip, the data is input and output by the first singlechip and the second singlechip, and the analog-to-digital conversion of analog quantity input is finished by the first singlechip with the built-in analog-to-digital converter, so the real-time processing capacity of the universal protector is improved.

Description

technical field [0001] The invention relates to an electric safety protection device, in particular to a general protector. Background technique [0002] The protector refers to a device that provides safety protection for electrical equipment. It has a built-in intelligent anti-high voltage device. When the electrical appliance encounters abnormal conditions such as instantaneous high voltage, it will intelligently activate the internal protection device to ensure the safety of the back-end electrical equipment. Electrical Safety. At present, the analog input of the existing protector needs to use a separate A\D conversion module to convert the signal to analog and digital, and the converted signal is then sent to the processing chip for processing. In this way, the real time is poor and cannot meet the requirements. Contents of the invention [0003] The purpose of the present invention is to provide a universal protector with good real-time performance. [0004] To ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/22H02H3/05
Inventor 李放
Owner HUAINAN WANTAI ELECTRONICS