Storage battery charging and discharging protection system

Abstract

The invention discloses a storage battery charging and discharging protection system which comprises a transformer, a rectifier filter, a charging circuit, a discharging circuit, a charging protection circuit and a discharging protection circuit. The transformer is connected with alternating current and is connected with the charging circuit and the discharging circuit through the rectifier filter. The charging circuit and the discharging circuit are connected with the battery and the load. The charging protection circuit monitors the charging condition of the battery and cuts off a battery charging loop when the battery is charged to a full-charge peak voltage; the discharge protection circuit monitors the power supply voltage, the undervoltage voltage and the starting voltage of the battery when the external power supply supplies power to the battery, compares the power supply voltage, the undervoltage voltage and the starting voltage, and controls the power supply state of the external power supply to the battery and the load and the power supply state of the battery and the load when the external power supply does not exist. Power supply and discharge loops of the battery can be cut off in time, the battery can be effectively protected, the service life of the battery is prolonged, and the safety problem of battery use is reduced.

Description

technical field [0001] The invention relates to the technical field of battery charging and discharging, in particular to a battery charging and discharging protection system. Background technique [0002] Batteries play an important role in the field of electronic technology, and the use safety of batteries is the focus of attention. At present, due to long-term irregular use of most batteries, the battery life is shortened, resulting in problems of thermal runaway, breakdown, and short circuit inside the battery. [0003] Therefore, it is necessary to propose a storage battery charge and discharge protection system to solve the above problems. Contents of the invention [0004] In order to overcome at least one defect (deficiency) of the above-mentioned prior art, the present invention provides a storage battery charging and discharging protection system, which monitors the charging and discharging conditions of the battery, and can cut off the power supply circuit of t...

AI Technical Summary

Problems solved by technology

At present, due to long-term irregular use of most batteries, the battery life is shortened, resulting in problems of thermal runaway, breakdown, and short circuit inside the battery.

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