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Fault signal holding circuit, detection device, and electronic apparatus

A fault signal and holding circuit technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve problems such as increased design costs, and achieve the effect of low cost and high detection accuracy

Pending Publication Date: 2022-04-29
SUZHOU INOVANCE CONTROL TECH CO LTD
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Problems solved by technology

[0003] The main purpose of the present invention is to provide a fault signal holding circuit, detection device and electronic equipment, aiming to solve the technical problems in the prior art that the signal holding function needs to be released by a controller, and an elimination circuit needs to be added, resulting in an increase in design cost

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  • Fault signal holding circuit, detection device, and electronic apparatus
  • Fault signal holding circuit, detection device, and electronic apparatus
  • Fault signal holding circuit, detection device, and electronic apparatus

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Embodiment Construction

[0034] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] 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 part of the embodiments of the present invention, not all of them. 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.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positi...

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Abstract

The invention discloses a fault signal holding circuit, a detection device and electronic equipment, and relates to the technical field of power electronics. The fault signal holding circuit comprises a detection circuit, a trigger circuit and a feedback circuit, the detection circuit receives a detection signal, generates a first fault signal when the detection signal satisfies a fault condition, and generates a trigger signal with a gradually reduced voltage when the first fault signal is received; and the feedback circuit receives the trigger signal and transmits a second fault signal to the main control circuit when the voltage of the trigger signal is greater than or equal to the preset voltage. According to the invention, the fault signal can be maintained and eliminated through the signal capable of automatically attenuating, the main control circuit does not need to be additionally provided with an elimination loop, and the cost is lower; and self-locking can be automatically formed, and the detection precision is higher.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a fault signal holding circuit, a detection device and electronic equipment. Background technique [0002] In the power system, there is usually a safety protection function, which mainly detects the power system; when a fault occurs, the fault signal is fed back to the controller. In order to ensure that the controller can effectively capture the fault signal, it is often necessary to keep the fault signal for a period of time. However, most of the signal hold functions need to be released by the controller, that is, a cancellation circuit needs to be added, which leads to an increase in design cost. Contents of the invention [0003] The main purpose of the present invention is to provide a fault signal holding circuit, detection device and electronic equipment, aiming to solve the technical problems in the prior art that the signal holding function needs to be rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00H03M1/12
CPCG01R31/00H03M1/1245
Inventor 张国松杨远钢
Owner SUZHOU INOVANCE CONTROL TECH CO LTD
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