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A signal test circuit and device

A signal testing and circuit technology, applied in the direction of measuring device shell, electronic circuit testing, etc., can solve the problems of many testing devices and complicated operation, and achieve the effect of low cost, simple structure and abundant signals

Active Publication Date: 2022-07-22
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a signal test circuit and device to solve the problem that the existing test device often only has one function. The problem with many devices

Method used

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  • A signal test circuit and device
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  • A signal test circuit and device

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Embodiment Construction

[0039] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the examples in this application, all other implementations obtained by those of ordinary skill in the art without creative work fall within the scope of protection of this application.

[0040] refer to figure 1 , an embodiment of the present invention provides a signal test circuit, including: a first signal input end V1, a second signal input end V2, a signal output end Vout, an amplifier U1, a first encoding switch SA1 and a second encoding switch SA2;

[0041] The first coding switch SA1 includes a first knob and at least two switches, the on state of each switch is determined by th...

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Abstract

The invention discloses a signal testing circuit and device, belonging to the field of signal testing. The signal test circuit includes a first signal input end, a second signal input end, a signal output end, an amplifier, a first encoding switch and a second encoding switch; each switch in the first encoding switch and the second encoding switch is connected with different components. In the solution of the present application, the first knob of the first encoding switch is in a different position and the second knob of the second encoding switch is in a different position, so as to change the connection state of each switch in the first encoding switch and the second encoding switch; Different circuit conditions, different circuit structures, and different functions can be realized by the circuits. Only one circuit can test different signals without re-replacement of the test device. It has the advantages of simple structure, rich signals, easy expansion and low cost.

Description

technical field [0001] The present invention relates to the field of signal testing, in particular, to a signal testing circuit and device. Background technique [0002] With the improvement of people's living standards and the rapid development of refrigeration technology, the functions of air conditioners have gradually increased, and with it, there are more and more types of signals that need to be tested on the main board of air conditioners. , the existing test device often only has one function, when testing signals of different functions, the test device needs to be replaced again, which is complicated to operate and requires more test devices. SUMMARY OF THE INVENTION [0003] In order to overcome the deficiencies of the prior art, the present invention provides a signal testing circuit and device, so as to solve the problem that the existing testing device often only has one function. When testing signals with different functions, the testing device needs to be re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R1/04G01R31/28
CPCG01R1/04G01R31/28
Inventor 勾良才沈丽凤梁紫锋
Owner GREE ELECTRIC APPLIANCES INC