The PW4556 series of devices are highly integrated Li-Ion and Li-Pol linear chargers targetedat small capacity battery for portable applications. It is a complete constant-current/ constantvoltage linear charger. No external sense resistor is needed, and no blocking diode is required dueto the internal MOSFET architecture. It can deliver up to 300mA of charge current (using a goodthermal PCB layout) with a final float voltage accuracy of ±1%. The charge voltage is fixed at 4.2V or4.35V, and the charge current can be programmed externally with a single resistor. The chargerfunction has high accuracy current and voltage regulation loops and charge termination
標(biāo)簽： pw4556
上傳時間： 2022-02-11
上傳用戶：1208020161
目前電動汽車主要以鋰電池作為動力來源,為了提高鋰電池的使用時間和安全性,為鋰電池提供安全良好的運行環(huán)境,電池管理系統(tǒng)應(yīng)運而生。BMS主控單元基于S32K144汽車級單片機,通過主從式網(wǎng)絡(luò)控制結(jié)構(gòu)能夠?qū)︿囯姵氐母鱾€參數(shù)進(jìn)行采集與分析。采用擴(kuò)展卡爾曼濾波對電池的荷電狀態(tài)(SOC)進(jìn)行估算,克服普通估算方法無法避免電池內(nèi)阻誤差的缺點,通過Matlab/Simulink軟件仿真驗證可使估算誤差達(dá)到2%以內(nèi)。At present,electric vehicles mainly use lithium batteries as the power source.In order to improve the running time and safety of lithium batteries,a safe and good operating environment for power batteries is provided,and a battery management system(BMS) has emerged.The BMS main control unit is based on the S32K144 automotive-grade control chip.Through the master-slave network control structure,it can collect and analyze the various parameters of the lithium battery.The Extended Kalman Filter(EKF) is used to estimate the state of charge(SOC) of the battery,which overcomes the shortcomings of the internal estimation method that cannot overcome the internal resistance error of the battery.It can be verified by Matlab/Simulink software simulation.The estimation error is within 2%.
上傳時間： 2022-03-26
上傳用戶：XuVshu
BMS定義·BMS:Battery management system SYSTEM），其作用是對鋰離子電池電壓、電流、溫度、容量、電池SOC荷電狀態(tài)計量、電池與車體的絕緣狀態(tài)等多種電池參數(shù)以CAN通訊的方式與車控電腦實時進(jìn)行信息交換，確保電池的能量發(fā)揮到極致，使駕駛者能夠隨時掌握電池的工作狀態(tài)，以保證電池的安全。BMS不僅是數(shù)字化智能電池系統(tǒng)的中樞神經(jīng)，也是新能源汽車必不可少的關(guān)鍵部件·SOC:State of Charge，電池（組）荷電狀態(tài)；·SOH:State of Health，電池健康度BMS功能·1）電池工作狀態(tài)監(jiān)控：主要指在電池的工作過程中，對電池的電壓，溫度，工作電流，電池電，絕緣阻抗，繼電器狀態(tài)等一系列電池相關(guān)參數(shù)進(jìn)行實時監(jiān)測或計算，并根據(jù)這些參數(shù)判斷目前電池的狀態(tài)，以進(jìn)行相應(yīng)的操作，防正電池的過充或過放。·2）電池充放電管理：在電池的充電或放電的過程中，根據(jù)環(huán)境狀態(tài)，電池狀態(tài)等相關(guān)參數(shù)對電池的充電或放電進(jìn)行管理，設(shè)置電池的最佳充電或放電曲線（如充電電流，充電上限電壓值，放電下限電壓值等），實現(xiàn)電池過充，進(jìn)蔽，垃流，是流，短路等保護(hù)3）單體電池間均衡：即為單體電池均衡充電，使電池組中各個電池都達(dá)到均衡一致的狀態(tài)。均衡器是電池管理系統(tǒng)的核心部件。
上傳時間： 2022-07-02
上傳用戶：slq1234567890
This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
標(biāo)簽： redistribute the software program
上傳時間： 2013-12-22
上傳用戶：cazjing
This a very simple Yee algorithm 3D FDTD code in C implementing the free space form of Maxwell s equations on a Cartesian grid. There are no internal materials or geometry. The code as delivered simulates an idealized rectangular waveguide by treating the interior of the mesh as free space/air and enforcing PEC (Perfect Electric Conductor) conditions on the faces of the mesh.
標(biāo)簽： implementing algorithm Maxwell simple
上傳時間： 2015-05-14
上傳用戶：水中浮云
Details description of Free BSD network source code.Those documents have explained each line of code.
標(biāo)簽： code description documents explained
上傳時間： 2015-07-01
上傳用戶：fandeshun
free library of genetic algorithms
標(biāo)簽： algorithms library genetic free
上傳時間： 2013-12-22
上傳用戶：xinzhch
FreeRAM XP Pro 1.52 You can free RAM of PC anytime.
標(biāo)簽： FreeRAM anytime 1.52 free
上傳時間： 2013-12-29
上傳用戶：二驅(qū)蚊器
This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2 of the License, or (at your option) any later version.
標(biāo)簽： redistribute the software program
上傳時間： 2014-11-30
上傳用戶：大三三
SWDiet3D is a port to SuperWaba of the Diet3D, the free 3D engine for J2ME mobiles, written by Philippe Coval.
標(biāo)簽： SuperWaba the SWDiet3D mobiles
上傳時間： 2015-12-15
上傳用戶：ynsnjs
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