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High and low voltage testing circuit

A technology for testing circuits and high and low voltages, applied in the field of circuits, can solve the problems of hidden safety hazards and low efficiency of testers, and achieve the effect of eliminating hidden safety hazards and improving low efficiency.

Inactive Publication Date: 2015-01-14
OCEANKING DONGGUAN LIGHTING TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

In this way, the efficiency of manual conversion test is very low, and because the switch is manually controlled by the tester, there is a certain potential safety hazard for the safety of the tester.

Method used

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Embodiment Construction

[0013] 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.

[0014] figure 1 It is a schematic structural diagram of a high and low voltage test circuit provided by an embodiment of the present invention, such as figure 1 As shown, including: conversion circuit 11 and counting circuit 12, wherein:

[0015] The output end of the conversion circuit 11 is connected to a lamp, the first input end of the conversion circuit 11 is connected to a high voltage power supply, the second input end of the conversion circuit 11 is connec...

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Abstract

The embodiment of the invention discloses a high and low voltage testing circuit. The high and low voltage testing circuit comprises a switching circuit and a counting circuit, wherein the output end of the switching circuit is connected with a lamp, the first input end of the switching circuit is connected with a high-voltage power source, the second input end of the switching circuit is connected with a low-voltage power source, and the switching circuit is used for controlling the output end of the switching circuit to output high-voltage electric signals and low-voltage electric signals in a switching mode; the first input end and the second input end of the counting circuit are each connected with the control end of the switching circuit, and the counting circuit is used for calculating the switching frequency of the switching circuit for outputting the high-voltage electric signals and the low-voltage electric signals in the switching mode. Through the high and low voltage testing circuit, the problem that the high and low voltage test efficiency is low can be solved, and the potential safety hazards on testing personnel can be eliminated.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a high and low voltage test circuit. Background technique [0002] The lighting industry is widely used and important in modern society, so the requirements for the reliability of lamps and lanterns are getting higher and higher, and the requirements for lighting quality are also getting higher and higher. Since lamps often share the same power supply with some large-scale equipment in practical applications, the voltage will be pulled down momentarily and then recovered when the large-scale equipment is started, causing the lamp to be subjected to voltage shock. In this way, high and low voltage tests need to be carried out on the lamps, and the current test is mainly to connect two switches, connect the high and low voltages to the switches in series, and manually control the on-off switch to convert between high and low voltages. Dozens or hundreds of conversions may be required durin...

Claims

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Application Information

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IPC IPC(8): G01R31/44
Inventor 周明杰胡波
Owner OCEANKING DONGGUAN LIGHTING TECH
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