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Insulation detection circuit, main board and related devices

A technology for testing circuits and circuits, which is applied in testing circuits, testing dielectric strength, power supply testing, etc., can solve problems such as complex measurement methods, and achieve the effect of simplifying insulation testing circuits

Active Publication Date: 2022-07-05
SHINRY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The unbalanced bridge method needs to control four switches and measure four voltages to calculate the insulation resistance value. This measurement method is complicated.

Method used

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  • Insulation detection circuit, main board and related devices
  • Insulation detection circuit, main board and related devices
  • Insulation detection circuit, main board and related devices

Examples

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Embodiment Construction

[0030] In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

[0031] Each of them will be described in detail below.

[0032] The terms "first", "second", "third" and "fourth" in the description and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having" an...

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Abstract

The present application discloses an insulation detection circuit, which includes an AC power supply, a filter circuit and a wave detection circuit. The wave detection circuit includes a first sub-detection circuit and a second sub-detection circuit; the AC power supply is connected to the filter circuit, and the filter circuit is connected to the first sub-detection circuit A sub-test circuit is connected to the second sub-test circuit; the AC signal generated by the AC power source passes through the filter circuit to generate a first current signal, and the first current signal flows to the first sub-test circuit and the second sub-test circuit , and the first voltage is generated in the first sub-test circuit, and the second voltage is generated in the second sub-test circuit. The embodiments of the present application can simplify the design of the insulation detection circuit.

Description

technical field [0001] The present application relates to the technical field of circuit structures, and in particular, to an insulation detection circuit, a mainboard and related devices. Background technique [0002] Electricity is an essential element in life. In some occasions where there is no power supply or the power supply cannot be interrupted, it is unavoidable to use some equipment to convert other energy sources into alternating current to supply power to electrical equipment, such as Uninterruptible Power System / Uninterruptible Power Supply (UPS), Car inverter. In order to avoid electric shock accidents caused by insulation failure when using these devices, it is necessary to test the insulation performance of the AC power supply and the chassis, and cut off the power supply in time when the insulation failure is found. At present, the common method of insulation detection circuit is the unbalanced bridge method. The unbalanced bridge method needs to control ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/14G01R31/42
CPCG01R31/14G01R31/42
Inventor 唐林胡定高赵德琦吴壬华
Owner SHINRY TECH
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