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Repair

  • How to restruct paradox DB when you encounter pb whith indexes. You have to use this mecanism to re

    How to restruct paradox DB when you encounter pb whith indexes. You have to use this mecanism to Repair your DB. You might use it in each prg when you close your Delphi programs.

    标签: encounter to restruct mecanism

    上传时间: 2013-12-14

    上传用户:515414293

  • 一种车载充电器的设计

    以AT89S52单片机为控制核心,采用电容降压技术,Buck电路拓扑,PWM驱动模块和功率器件散热设计,通过高速的数据采集、主功率输入输出模块和控制模块,设计一种新型智能车载充电器.在充电过程中,通过负脉冲瞬间放电实现对铅酸蓄电池的再生修复,提高电池的有效容量,延长使用寿命.该充电器体积小、速度快、效率高、可靠性好.With AT89S52 single chip computer as the control core,a new type of intelligent car-carried charger was designed by using capacitance step-down technology,Buck circuit topology,PWM driving module and power device heat dissipation design,through high-speed data acquisition,main power input and output module and control module.In the charging process,the regeneration and Repair of lead-acid batteries are realized by instantaneous discharge of negative pulse,which improves the effective capacity of batteries and prolongs their service life.The charger has the advantages of small size,fast speed,high efficiency and good reliability.

    标签: 车载充电器

    上传时间: 2022-03-27

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