48V铅酸储电池充电器的设计（毕业学术论文设计）.docVIP

PAGE 18 48V铅酸储电池充电器 摘要：本设计介绍了充电器对蓄电池充电的一般原理，从蓄电池内部氧循环的设计理念出发，研究各种充电方法对铅酸蓄电池寿命的影响。针对蓄电池充电过程中出现的种种问题，提出对铅酸蓄电池实现简易脉冲充电器设计方案。将整个设计方案分解成两个模块电路的设计，通过分析和计算获得每个模块中各个元器件的参数，最后将各个模块进行组合获得完整的电路。整个电路分为主电路和触发电路，通过控制触发电容的充电时间，以调整单结晶体管的占空比，再将输出的触发信号调节可控硅的导通及关断时间，从而调节充电电流，实现对蓄电池的脉冲式充电，这个方案不仅可实现对蓄电池快速充电，同时可以减少析气，消除硫化，进行均衡充电，从而大大地延长了铅酸蓄电池的使用寿命。 关键词：充电器,铅酸蓄电池，触发，单结晶体管，可控硅。 48 V lead-acid battery charger Abstract： This paper introduces the charger to the general principles of the battery, the battery from internal oxygen cycle of principle of design, to study various charging method to the influence of lead acid battery life. For battery appeared in the process of a variety of problems, puts forward the lead-acid battery charger design scheme to realize the simple pulse. Will the whole design scheme is decomposed into two module circuit design, through the analysis and calculation for each module of the parameters of the all components, finally will each module combined obtain complete circuit. The whole circuit points as circuit and trigger circuit, through the control of capacitance trigger charging time, adjusting to single junction transistor than of empty, and then the output signal regulating the thyristor trigger conduction and cut-off time, which regulates charging electric current, realize the battery pulsed charging, this scheme not only can be used for fast charging the battery, and reduce gas chromatography, eliminate vulcanization, charging for equilibrium, thus greatly extended the lead acid battery service life. Keywords: lead acid battery, trigger, single junction transistor, silicon controlled, charger. TOC \* MERGEFORMAT 目 录 前 言 PAGEREF _Toc2487 0 第一章 总体设计方案 PAGEREF _Toc28643 1 1 系统设计 PAGEREF _Toc5030 1 2 方案策略 PAGEREF _Toc25143 1 第二章 蓄电池的选择 PAGEREF _Toc21222 2 1 蓄电池的种类、特点 PAGEREF _Toc3553 2 2 蓄电池的选择 PAGEREF _Toc3914 2 第三章 充电器原理 PAGEREF _Toc10162 3 1 铅酸蓄电池的充电以及放电特性 PAGEREF _Toc11645 3 2 充电器的工作原理 PAGEREF _Toc69 3 2.1 恒流充电 PAGEREF _Toc10212 4 2.2 恒