Wireless+Mesh+Networking
Wireless Mesh Networks (WMN) are believed to be a highly promising technology and will play an increasingly important role in future generation wirele...
Wireless Mesh Networks (WMN) are believed to be a highly promising technology and will play an increasingly important role in future generation wirele...
The explosion in demand for wireless services experienced over the past 20 years has put significant pressure on system designers to increase the capa...
The PW4556 series of devices are highly integrated Li-Ion and Li-Pol linear chargers targetedat small capacity battery for portable applications. It i...
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、...
为设计高效率、低损耗的PFC电路,本文基于UCC28019进行电路设计。以UCC28019输出的PWM波形来控制Boost升压斩波为核心电路,使电路中的电容交替地充放电、电感交替的储存和释放能量,最后实现在输入AC20V~24V电压情况下稳定输出DC38V。测试结果表明,系统实现效率为95%左右,电...