智能型锂电池保护板电路的设计与实现.doc

智能型锂电池保护板电路的设计与实现 摘要 锂离子电池因储能容量大、使用寿命长、清洁环保、能量体积比大等众多优点，所以在各行各业被广泛使用，逐渐成为了电池的主流产品。然而因锂电池的能量密度高，也使得难以确保其安全性，所以需要相匹配的电池保护电路来确保电池以及使用设备的安全。 本文介绍了通过锂离子电池的充放电特点设计一种支持多种规格锂电池及电池组的保护电路的详细过程。 本文作为研究主体，详细阐述了作者在学士学位论文工作期间对的研究与设计Design and Implementation Of Intelligent Lithium-ion Battery Protection Circuit Abstract Lithium-ion battery is widely used in almost all walks of life, because of its large capacity, long useful life, environment friendly and large volume ratio of energy. It is becoming the mainstream products of battery. But its high volume ratio of energy is also the unstable caution of security. So it is necessary to match the battery protection circuitry to ensure the safety of the battery and the equipment of using the battery. This article describes the adoption of lithium-ion battery charge and discharge characteristics of a variety of specifications to design a lithium battery group and battery protection circuit. In this paper, the charge and discharge characteristics of lithium battery as a research subject during the process. This article introduces the characteristics of lithium battery and its protection circuit development and trend, followed by shows the principles of lithium battery charge and discharge. And then make the design settings. During the design process, firstly proposed various of design options. Through theoretical analysis to determine the program, selected Seiko electronic power management IC S-8209 to achieve the design. Then carried out on the S-8209 Pspice model and simulation to verify its functionality and provide a theoretical basis for the design. Then draw the circuit diagram, and helping to improve optimization design. Finally, debug the lithium battery protection circuit and summary my work during the graduation project. Keywords: Lithium-ion battery Battery protection circuit Pspice-modeling Lithium-ion battery group S-8209 目录 1 绪论 1 1.1 课题研究背景 1 1.2 课题的研究方向和发展前景 2 1.2.1锂电池保护电路的现状 2 1.2.2 锂电池保护电路的发展前景 3 1.3 选题