Battery for passive secondary circuit inspection source and battery management circuit

Abstract

The invention discloses a battery for a passive secondary circuit inspection source and a battery management circuit. The battery comprises a battery unit, a battery II switching unit, a battery III switching unit and a battery N switching unit, the working states from a battery I to a battery N comprise parallel connection and series connection; the switching is completed by the battery switchingunits; the battery unit comprises a plurality of batteries and battery packs; the circuit is suitable for a plurality of battery packs. The battery II switching unit comprises a battery II low-end B2GND parallel connection and series connection switching circuit and a battery II high-end BAT<2+> parallel connection and series connection switching circuit, wherein the parallel connection and series connection switching circuit of the battery II low-end B2GND comprises an isolation switch circuit and an N-type MOS tube half-bridge switching circuit, and the parallel connection and series connection switching circuit of the battery II high-end BAT<2+> comprises an isolation switch circuit and a P-type MOS tube half-bridge switching circuit. The requirement of current electrical equipment formulti-voltage power supply can be met, the working efficiency of the power supply equipment is improved, and the use cost of the equipment is reduced.

Description

Technical field [0001] The present invention relates to the field of electronic and electrical equipment, in particular to a battery and a battery management circuit used for a passive secondary circuit inspection source. Background technique [0002] At present, various portable electronic and electrical products, instruments and meters, etc. need battery power supply. The traditional battery power supply method is: connect battery packs in series and parallel to a fixed voltage to supply power to the equipment, and the series-parallel relationship of the battery remains unchanged during charging. Battery packs have many shortcomings. Due to the differences in the charging and discharging characteristics of each battery in the battery pack, long-term use will lead to unbalanced charging and discharging of individual batteries, causing individual batteries to be overcharged or overdischarged during use, affecting battery life; single voltage Power supply cannot meet the current n...

AI Technical Summary

Problems solved by technology

[0002] At present, all kinds of portable electronic and electrical products, instruments and meters, etc. need battery power supply. The traditional battery power supply method is: connect the battery packs in series and parallel to form a fixed voltage to supply power to the equipment, and the series-parallel relationship of the batteries remains unchanged during charging. The battery pack has many disadvantages. Due to the differences in the charging and discharging characteristics of each battery in the battery pack, it will lead to unbalanced charging and discharging of individual batteries during long-term use, causing overcharging or overdischarging of individual batteries during use, affecting battery life; single voltage Power supply cannot meet the needs of current electrical equipment for multi-voltage power supply. A single power supply reduces the working efficiency of power supply equipment and increases the cost of equipment use.

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