Power supply control system and method of multi-tab battery and electronic equipment

Abstract

The invention relates to a power supply control system and method of a multi-tab battery and electronic equipment. The power supply control system comprises a charging and discharging circuit and a three-cell battery, wherein the three-cell battery comprises battery connectors, and the battery connectors at least comprise a first battery connector and a second battery connector; the charging and discharging circuit comprises a step-up circuit module, a step-down circuit module, a charge pump circuit module, an auxiliary step-down circuit module, a battery charging and discharging control module and a system power supply module; the battery charging and discharging control module is a control module for controlling the step-up circuit module, the step-down circuit module, the charge pump circuit module and the auxiliary step-down circuit module to work in corresponding charging and discharging stages; the step-up circuit module works in a trickle charging stage, a constant-voltage charging stage and a charging cut-off stage; the charge pump circuit module works in a constant-current charging stage; the step-down circuit module works in a constant-current charging stage, a constant-voltage charging stage and a charging cut-off stage; and the auxiliary step-down circuit module works in a discharging stage, so that the charging efficiency is improved.

Description

technical field [0001] The present disclosure relates to the technical field of battery charging, and in particular to a power control system, a control method and electronic equipment of a multi-pole battery. Background technique [0002] A rechargeable battery is a rechargeable battery with a limited number of charging times and can be used with a charger. By charging the battery, the battery can be reused, which is beneficial to meet the needs of economy and environmental protection. The charging process of a battery is the reverse process of its discharging process, specifically, the process of converting electrical energy into chemical energy stored in the battery. [0003] In current electronic devices, single-cell batteries are mainly used for charging. However, when the single-cell battery is fully charged, the voltage is about 4.5V. When the charging current exceeds 8A, the battery terminal circuit board will heat up very seriously. For this, usually the battery ...

AI Technical Summary

Problems solved by technology

However, when the single-cell battery is fully charged, the voltage is about 4.5V. When the charging current exceeds 8A, the battery terminal circuit board will heat up very seriously.

For this, usually the battery connector also needs to be replaced with a battery connector with a lower impedance and a larger flow rate, resulting in increased hardware costs; at the same time, the wiring and heat dissipation treatment in the battery terminal circuit board will also be more difficult

In order to meet the heat dissipation requirements, the charging power of the battery terminal of the usual single cell is about 36W, resulting in low charging efficiency

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