Chip with charge-discharge function and electric quantity detecting function

Abstract

The invention discloses a chip with a charge-discharge function and an electric quantity detecting function. The chip comprises a charging module, a direct current / direct current (DC / DC) conversion module, a sampling module, a conversion module, an interface module, an interruption control module and a control module. The charging module is used for managing the charging of a battery, the DC / DC conversion module is used for receiving power supply from the battery, and supplying power to a load, the sampling module is used for sampling the temperature, the voltage and the current of the battery, the conversion module is used for converting signals of the temperature, the voltage and the current into digital signals of the temperature, the voltages and the current, the interface module is used for communicating with the exterior of the chip, the interruption control module is used for controlling that an interruption source of the chip dispatches interruption requirements, and the control module monitors available remaining capacity and total available capacity of the battery according to the digital signals of the temperature, the voltage and the current, controls the charging module and the DC / DC conversion module and communicates with the exterior of the chip through the interface module and responses to the interruption requirements. The chip with the charge-discharge function and the electric quantity detecting function are not only flexible in application, but also simple in structure and low in power consumption.

Description

Technical field [0001] The invention relates to the technical field of multifunctional battery management, and particularly designs a chip with charging and discharging and power detection functions. Background technique [0002] The management of batteries mainly involves charging, discharging and monitoring. The traditional management of rechargeable batteries involves: [0003] Charging scheme: from power supply to charging management module (CHARGER) to battery; [0004] Discharge scheme: 1. The battery goes directly to the electric equipment; 2. The battery is supplied to the equipment after DCDC (or other voltage stabilizing function modules); [0005] Electricity monitoring: Electricity meter implementation. [0006] For different battery application fields, the required battery management solutions are different, so the traditional power function chips are all single functions. However, with the continuous expansion of the application field of rechargeable batteries in recent...

AI Technical Summary

Problems solved by technology

Most of the traditional solutions for battery charging, discharging and power monitoring are completed by using charge management (CHARGER) chips, DCDC chips, fuel gauges and peripheral devices. Not only are the circuits complex and occupy a large space, but the most serious impact is the large power consumption and expensive

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