针对电动汽车动力电池组长期不能完全充满而影响其使用寿命,设计了一种光伏电池车载充电装置,能够对动力电池组长时间小电流涓流充电以改善其充电状态,同时部分补充电池组能量,延长电动汽车续航里程与使用寿命。采用TMS320F2808 DSP芯片作为控制核心、以BOOST升压变换器作为主电路的硬件设计方案,完成了主要元器件的选型和参数整定,对设计参数进行了仿真验证和优化,并研制了样机。制定了高性能算法与控制策略,既能完成光伏电池最大输出功率的跟踪,又能提高电池的充电效率,并基于MATLAB平台完成了DSP嵌入式应用程序设计,生成代码。配备了车载监控系统,实现良好的人机交互功能。实验结果表明:该装置性能稳定,光伏电池最大输出功率跟踪速度快,稳态误差小,效率高,并具有防止电池组过充电保护,人性化的人机交互平台,有很强的实用性。
上传时间: 2018-10-17
上传用户:cyyyyyy
改程序经过测试,是基于dsp的环境测试了
上传时间: 2019-03-26
上传用户:weisuo2015
The telecommunications industry has seen a rapid boost within the last decade. New realities and visions of functionalities in various telecommunications networks have brought forward the concept of next-generation networks (NGNs). The competitions among operators for support- ing various services, lowering of the cost of having mobile and cellular phones and smartphones, increasing demand for general mobility, explosion of digital traffic, and advent of convergence network technologies added more dynamism in the idea of NGNs. In fact, facilitating con- vergence of networks and convergence of various types of services is a significant objective of NGN
标签: Next-Generation Converged Building Networks
上传时间: 2020-05-26
上传用户:shancjb
The telecommunications industry has seen a rapid boost within the last decade. New realities and visions of functionalities in various telecommunications networks have brought forward the concept of next-generation networks (NGNs). The competitions among operators for support- ing various services, lowering of the cost of having mobile and cellular phones and smartphones, increasing demand for general mobility, explosion of digital traffic, and advent of convergence network technologies added more dynamism in the idea of NGNs. In fact, facilitating con- vergence of networks and convergence of various types of services is a significant objective of NGNs.
标签: Next-Generation Converged Networks
上传时间: 2020-05-31
上传用户:shancjb
Driven by the desire to boost the quality of service of wireless systems closer to that afforded by wireline systems, space-time processing for multiple-input multiple-output (MIMO) wireless communications research has drawn remarkable interest in recent years. Excit- ing theoretical advances, complemented by rapid transition of research results to industry products and services, have created a vibrant and growing area that is already established by all counts. This offers a good opportunity to reflect on key developments in the area during the past decade and also outline emerging trends.
标签: Space-Time Processing
上传时间: 2020-06-01
上传用户:shancjb
BUCKBOOST电路原理分析uck变换器:也称降压式变换器,是一种输出电压小于输入电压的单管不隔离直流变换器。 图中,Q为开关管,其驱动电压一般为PWM(Pulse、width、modulation脉宽调制)信号,信号周期为Ts,则信号频率为f=1/Ts,导通时间为Ton,关断时间为Toff,则周期Ts=Ton+Toff,占空比Dy=、Ton/Ts。 Boost变换器:也称升压式变换器,是一种输出电压高于输入电压的单管不隔离直流变换器。 开关管Q也为PWM控制方式,但最大占空比Dy必须限制,不允许在Dy=1的状态下工作。电感Lf在输入侧,称为升压电感。Boost变换器也有CCM和DCM两种工作方式 Buck/Boost变换器:也称升降压式变换器,是一种输出电压既可低于也可高于输入电压的单管不隔离直流变换器,但其输出电压的极性与输入电压相反。Buck/Boost变换器可看做是Buck变换器和Bo
上传时间: 2021-10-18
上传用户:
围绕电源控制芯片TOP266VG,采用Buck—Boost拓扑结构设计了一款某仪表专用开关电源,输出电压为12 V,输出电流为2.5 A。着重进行了变压器的设计与计算,并根据计算结果制作高频变压器和设计PCB板。测试结果表明:该仪表专用开关电源具有效率高、纹波小、负载调整率和电压调整率小。
标签: 开关电源
上传时间: 2021-10-27
上传用户:
2.7V to 5.5V input voltage Range Efficiency up to 96% 24V Boost converter with 12A switch current Limit 600KHz fixed Switching Frequency Integrated soft-start Thermal Shutdown Under voltage Lockout Support external LDO auxiliary power supply 8-Pin SOP-PP PackageAPPLICATIONSPortable Audio Amplifier Power SupplyPower BankQC 2.0/Type CWireless ChargerPOS Printer Power SupplySmall Motor Power Supply
标签: XR2981
上传时间: 2021-11-05
上传用户:
本书系统地介绍了功率因数校正电路的原理和应用技术。 书中详细介绍了单相功率因数校正电路原理及控制方法 (包括CCM单相Boost 型功率因数校正电路、 CRM 单相Boost 型功率因数校正电路、交错并联功率因数校正电路、 无桥型功率因数校正电路、 低频开关功率因数校正电路) 和三相功率因数校正电路原理及控制 (重点介绍了电压型和电流型三相功率因数校正电路数学模型、 锁相、 PWM、控制技术)。 此外, 本书还介绍了软开关功率因数校正电路的原理,包括单相、 三相有源箝位零电压开关功率因数校正电路。本书可作为电气工程与自动化专业、 电子信息工程专业的高年级本科生、 电气工程学科的研究生参考书, 也可作为从事开关电源、 变频器、 UPS、 工业电源等电力电子装置开发、 设计工程技术人员的参考书。
上传时间: 2021-11-07
上传用户:zhanglei193
[摘要]全球电源管理技术领袖国际整流器公司(International Rectifier,简称IR)今天发布了IR1150 系列产品,专用于AC-DC 功率因数矫正电路,商标为PFC(tm)。由于采用紧凑的SO-8 封装,有助于将PFC 控制板面积缩减一半,在75W-4k W 功率范围内,为计算机、消费电子产品和家电提供了简便、灵活、高密度的解决方案。
标签: ir集成电路
上传时间: 2021-11-23
上传用户: