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Bus short-circuit detection method and circuit, storage medium and processor

A technology of bus short circuit and detection method, which is applied in the field of circuits, can solve problems such as unsafe back-end circuits, and achieve the effect of reducing design margins

Active Publication Date: 2018-07-10
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a bus short-circuit detection method, circuit, storage medium and processor, to at least solve the technical problem that the back-end circuit is unsafe when the existing detection circuit detects a bus short-circuit

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0023] It should be noted that the terms "first" and "second" in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under ap...

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Abstract

The present invention discloses a bus short-circuit detection method and circuit, a storage medium and a processor. The method comprises the steps of: starting a weak current charge circuit in a condition that a strong voltage detection circuit detects that a bus voltage of a unit is abnormal prior to bus voltage charge, wherein the weak current charge circuit is configured to charge the bus; detecting the charge current variation of the weak current charge circuit; and starting a pre-charge circuit in a condition that the e charge current variation shows that the bus is not short-circuit. Thetechnical problem is solved that a current detection circuit detects the bus short-circuit to cause that a rear-end circuit is not safe.

Description

Technical field [0001] The present invention relates to the field of circuits, in particular to a detection method, a circuit, a storage medium and a processor for a busbar short circuit. Background technique [0002] At present, in power circuits, busbars are often short-circuited due to damage to power devices or foreign objects. At this time, the current bus voltage value is generally collected to determine whether there is a short-circuit. However, when the power is turned on for the first time, or when the power is turned on again, the busbar is zero at this time, and the strong power pre-charging circuit can only be used to judge whether the back end is short-circuited. However, there is a drawback in this design. When the strong current voltage is in a wide range, due to short-circuit reasons, various restrictions will be imposed on the pre-charge circuit and the circuit performance will be reduced; when the back-end short-circuit is at a high voltage, it will cause a If ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02H02H9/02
CPCH02H9/02G01R31/52H02H3/08H02M1/36H02H7/125G01R31/36G01R31/12
Inventor 杨坚戴彪朱晓蒙宋爱程海松
Owner GREE ELECTRIC APPLIANCES INC
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