A detection device and method for a lithium battery charging and discharging circuit

Abstract

The invention relates to a detection device for a charging and discharging circuit of a lithium battery. The device includes a power supply part, a voltage regulation circuit, a voltage regulation drive circuit, a voltage sampling circuit, a power supply detection circuit, a measured unit, a lithium battery, an electronic load control circuit, an analog Electronic load, charging and discharging switching circuit, MCU circuit, and switching circuit; at the same time, it also involves a detection method for lithium battery charging and discharging circuit, including lithium battery charging circuit function detection, battery factory detection and machine power consumption detection, battery charging The methods of circuit function detection include trickle voltage charging function detection, constant current charging function detection, constant voltage charging function detection, automatic stop charging detection, battery factory detection methods include battery capacity detection and battery internal resistance detection, the power consumption of the whole machine The detection mainly detects the discharge current of the battery; the invented device and method are applied to the function detection of the lithium battery charging circuit, the battery factory detection and the power consumption detection of the whole machine.

Description

technical field [0001] The invention relates to a detection device and method for a charging and discharging circuit of a lithium battery. Background technique [0002] In the process of research and development, it is generally necessary to check the quality of the charging and discharging circuit of the charging and discharging battery to see if it has achieved the purpose of the design. All tests are required. Before the product leaves the factory, the overall power consumption of the charging and discharging battery is generally detected, that is, the magnitude of the discharge current, so as to ensure the consistency of the electrical performance of the product when it leaves the factory; [0003] However, for general discharge current detection, a complex circuit must be built for detection, which makes many test tools or equipment not equipped with this current detection circuit function. For the sake of safety, the battery should not be too full when it leaves the f...

AI Technical Summary

Problems solved by technology

[0003] However, general discharge current detection requires a complex circuit to detect, which makes many test tools or equipment not equipped with this current detection circuit function.

For the sake of safety, the battery should not be too full when it leaves the factory, otherwise, the battery will be damaged for some reason, or the battery will be over-discharged and other problems.

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