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Detection method, circuit, storage medium and processor for bus short circuit

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

Active Publication Date: 2020-10-02
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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  • Detection method, circuit, storage medium and processor for bus short circuit
  • Detection method, circuit, storage medium and processor for bus short circuit
  • Detection method, circuit, storage medium and processor for 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 following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a bus short-circuit detection method, circuit, storage medium and processor. Wherein, the method includes: when the high voltage detection circuit detects that the bus voltage of the unit is abnormal before the bus voltage is charged, turn on the weak current charging circuit, wherein the weak current charging circuit is used to charge the bus; detect the The amount of change in the charging current of the weak current charging circuit; when the amount of change in the charging current indicates that the bus bar is not short-circuited, turn on the pre-charging circuit. The invention solves the technical problem that the back-end circuit is unsafe when the existing detection circuit detects the bus short circuit.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a method for detecting a bus short circuit, a circuit, a storage medium and a processor. Background technique [0002] In the current power circuit, the bus bar is often short-circuited due to damage to power devices or foreign matter entering. At this time, it is generally judged whether there is a short circuit by collecting the current bus voltage value. When the power is turned on for the first time with a strong current, or when the power is turned on again, the bus bar is zero at this time, and it can only be judged whether the back end is short-circuited at this time through the strong current pre-charging circuit. However, there is a disadvantage in this design. When the strong voltage is in a wide range, various restrictions will be imposed on the pre-charging circuit due to short-circuit reasons, which will reduce the performance of the circuit; If the surge current at the end ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/52H02H9/02
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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