A monitoring circuit, battery and aircraft

Abstract

The invention relates to the technical field of electronic circuits, and discloses a monitoring circuit, a battery and an aircraft. The monitoring circuit comprises a supply voltage input terminal, asupply voltage is applied to the supply voltage input terminal; A voltage holding circuit connected to a supply voltage input terminal; A first comparison circuit respectively connected to a supply voltage input terminal and a voltage holding circuit; A second comparison circuit respectively connected with a supply voltage input terminal and a voltage holding circuit; A protection circuit connected to the first comparison circuit and the second comparison circuit, respectively, and connected to a reset pin of the processor; When the supply voltage exceeds the preset voltage range, The first comparing circuit and the second comparing circuit output a high level or the first comparing circuit and the second comparing circuit output a low level so as to make the protection circuit output a low level, so that the reset pin of the processor is pulled low, and the processor is triggered to enter a reset state, so that the program of the processor is prevented from being tampered with when the power supply voltage fluctuates.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a monitoring circuit, a battery with the monitoring circuit, and a drone with the battery. Background technique [0002] As the computing core (Core) and control core (Control Unit) of various electronic devices, the processor mainly functions to interpret control instructions and process data. For example, taking batteries as an example, in order to ensure the safety of the battery’s power supply and the safety of the battery itself, most batteries usually use smart batteries, that is, the battery is usually equipped with a processor, which is mainly used to control the charging and discharging of the battery and Interaction with controllers of other electronic devices, etc., makes battery usage and management more predictable. At the same time, in order for the processor to work, it is also necessary to supply power to the processor to drive it to run. [0003] Th...

AI Technical Summary

Problems solved by technology

[0003] The stable power supply of the processor is the prerequisite to ensure its normal operation. If the power supply voltage of the processor is unstable, it may cause disorder in the control of the processor, and even tamper with the programming parameters and programs of the processor, which will lead to the use of the Damage to electronics with battery as power supply module

For example, take the battery of an aircraft such as a drone as an example. The battery of a drone usually has the characteristics of large discharge current and large voltage fluctuation. When powering on for the first time, due to poor contact, there will also be a lot of spike voltage

Unstable power supply voltage may cause disorder in the control of the processor, and sometimes even tamper with the program of the processor, resulting in a bad battery, and may even cause a drone bombing accident

Therefore, in the case of power supply voltage fluctuations, how to prevent the program of the processor from being tampered with has become a technical problem that needs to be solved urgently.

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