【选型】电梯变频器CAN隔离推进双通道数字隔离器Si8621,集成度高设计简单
在电梯控制系统中CAN总线通讯由于其成本低、传输距离远,已实现模块化设计等优势得到广泛应用,又由于工业设备运行工况复杂,需要对CAN通讯增加隔离来解决总线干扰、通信异常等问题。CAN总线通讯对于隔离的要求如下:
(1)隔离耐压/隔离工作电压要求,很多应用场合需求3.75kV/5kV隔离耐压;
(2)由于CAN通讯两端存在接地地势差,接地环路共模干扰严重会给电梯系统通讯带来系统级噪声,需要隔离单元抗干扰能力强;
(3)CAN通讯隔离通道单路需求双通道,最好能单个隔离器件能解决,可以给系统带来很好的集成度。
图1、电梯CAN通讯系统图示
基于以上三点,推荐Silicon Lab双通道数字隔离器Si8621:
(1)Si8621隔离耐压可以达到5kV,同时最大工作电压SOIC-16封装VIORM可以达到1200Vpeak,合适应用于380VAC甚至更高的系统;
(2)Si8621共模抑制比CMTI值可以50kV/us,远远高于隔离光耦的抗干扰能力;
(3)数字隔离器Si86xx系列最高可以支持6通道隔离,对比与光耦隔离方案,集成度高,设计布线等难题可以得到很好解决。
同时SILICON LABS数字隔离器产品Si86xx系列可以在RS485/RS232/CAN等不同通讯方式中得到应用。只要涉及到多通道隔离应用都可以选用设计,可以带来成本以及性能上的提升。
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
Si87XX容耦隔离器较Si86XX隔离器有何性能提升?
Si87XX单通道高性能数字隔离器,可取代传统光耦,在Si86XX隔离器性能的基础上增加以下性能:1、增强VED/IEC 60747-5-2,带10kv涌浪;2、可直接替代常见光耦;3、最适合:高性能光耦升级(寿命长,高可靠和高数据率)。
技术问答 发布时间 : 2017-05-05
170906105 Si86xx 16 WB SOIC UTAC Thailand Assembly Qualification
型号- SI8641BB-B-IS,SI8642BB-B-IS,SI8600AD-B-ISR,SI8642ET-IS,SI8631BT-ISR,SI8641BT-ISR,SI8645BB-B-IS,SI8650ED-B-ISR,SI8640BB-B-IS,SI8622BT-IS,SI8650BD-B-ISR,SI8630ET-IS,SI8641ET-IS,SI8621BT-ISR,SI8640BT-IS,SI8621BT-IS,SI8640BD-B-IS,SI8635BD-B-IS,SI8622ET-ISR,SI8642ET-ISR,SI8622ED-B-ISR,SI8642BD-B-IS,SI8631BD-B-IS,SI8631ED-B-IS,SI8635BT-IS,SI8642BD-B-ISR,SI8645ET-ISR,SI8641ED-B-ISR,SI8610ED-B-ISR,SI8640ED-B-IS,SI8642ED-B-IS,SI8642ED-B-ISR,SI8610ED-B-IS,SI8641BT-IS,SI8631BD-B-ISR,SI8645ET-IS,SI8651ED-B-ISR,SI8621ET-ISR,SI8631ET-ISR,SI8631BB-B-IS,SI8635BB-B-IS,SI8650ED-B-IS,SI8651BD-B-ISR,SI8621ED-B-ISR,SI8622BD-B-ISR,SI8640BB-B-ISR,SI8655BD-B-ISR,SI8631BT-IS,SI8621ED-B-IS,SI8645BD-B-IS,SI8641BD-B-IS,SI8630BD-B-IS,SI8620BT-ISR,SI8610BD-B-ISR,SI8645BT-ISR,SI8605AD-B-IS,SI8635BT-ISR,SI8620ET-ISR,SI8620ET-IS,SI8631BB-B-ISR,SI8600AD-B-IS,SI8645BT-IS,SI8622BT-ISR,SI8635ET-IS,SI8606AD-B-IS,SI8630BD-B-ISR,SI8652BD-B-IS,SI8655BD-B-IS,SI8630ED-B-ISR,SI8635BB-B-ISR,SI8630BT-IS,SI8651ED-B-IS,SI8620ED-B-ISR,SI8605AD-B-ISR,SI8652BD-B-ISR,SI8622ED-B-IS,SI8621BD-B-ISR,SI8622ET-IS,SI8651BD-B-IS,SI8641BB-B-ISR,SI8642BT-ISR,SI8620ED-B-IS,SI8640BD-B-ISR,SI8630ET-ISR,SI8630BT-ISR,SI8620BD-B-IS,SI8622BD-B-IS,SI8655BA-B-ISR,SI8630BB-B-ISR,SI8640ET-IS,SI8640ED-B-ISR,SI8645BB-B-ISR,SI8655BA-B-IS,SI8642BT-IS,SI8641ET-ISR,SI8631ED-B-ISR,SI8630BB-B-IS,SI8631ET-IS,SI8652ED-B-IS,SI8610BD-B-IS,SI8606AD-B-ISR,SI8620BD-B-ISR,SI8650BD-B-IS,SI8652ED-B-ISR,SI8621ET-IS,SI8620BT-IS,SI8630ED-B-IS,SI8641BD-B-ISR,SI8640ET-ISR,SI8621BD-B-IS,SI8640BT-ISR,SI8641ED-B-IS
Can接口保护方案有推荐的吗?该方案需要用到光耦吗?
为了避免CAN控制器和CAN收发器的电气不一致,需在二者之间加隔离芯片。传统的CAN隔离使用光耦较多,也推荐使用Silicon Labs的容隔离Si8621。 与传统光耦隔离相比,采用Si8621隔离芯片设计的电路功耗低,数据传输速率高,时序精度高,瞬态共模抑制比优,信号传输方向灵活,硬件电路简单。 在CAN总线接入端与地之间分别反接两个保护二极管,如果CAN总线上有较高的负电压,通过二极管的短路起到一定的过压保护作用。 收发模块连接的CAN总线两端并联了一个电阻,这个电阻作为数据收发终端对总线起了阻抗匹配的作用,防止数据在线端被反射,影响数据传输。
技术问答 发布时间 : 2017-03-14
【方案】100KW电动汽车电机驱动优选元器件方案
描述- 本方案采用Vincotech的E3系列IGBT模块、Power Integrations的隔离驱动、Melexis的电流传感器和Littelfuse的SIC MOSFET等器件组成的电机驱动电路,同时配备蓄电池备用辅助电源,实现大功率电机驱动安全高效、节能环保的目的。
型号- SMCJ24CA,LSIC1MO170E1000,L50QS200.V,A0-VS122PA600M7-L759F70,R7F701271EAFP#YK1,TFLEX HD300,EKXJ451ELL470ML25S,TPCM780,SGM2036-3.3YN5G/TR,SID1182KQ,SI8621BD-B-ISR,MLX91208LDC-CAL-000-SP
【产品】Silicon Labs的Si823Hx栅极驱动板,驱动功率模块和分立晶体管的理想选择
Silicon Labs的Si823Hx栅极驱动板(GDB)是驱动功率模块和分立晶体管的理想选择。这款双通道隔离栅驱动器解决方案具有差分数字接口、优化的板载隔离电源和用户可配置的开闭阶段栅极电阻器,借助状态指示灯和测试点可以很容易进行评估和原型制作。
新产品 发布时间 : 2021-04-03
【应用】Silicon Labs的数字隔离芯片SI8622EC-B-ISR在电能分析仪表中的应用
电网信号经过电压/电流互感器、信号调理电路转变为符合ADC输入要求的小幅值电压信号;模数转换模块用于将小幅值电压信号转变为数字信号,并将其传送至数据处理模块;数据处理模块以DSP作为运算核心,对ADC的采样信号进行数据处理,从而计算得到电压偏差、频率偏差、谐波、三相不平衡度、电压闪变等电能质量参数;数据管理模块用于对数据处理模块计算得到的各项电能质量参数进行数据管理,完成显示、存储以及通信等人机交
应用方案 发布时间 : 2019-02-19
Silicon Labs(芯科科技) Si86xxCOM-EVB评估板使用说明
型号- SI8622EC-B-IS,SI8642BB-B-IS,SI8642ED-B-ISR,SI8621EC-B-ISR,SI8621BC-B-ISR,SI8621BB-B-IS,SI8622BB-B-IS,SI8642BB-B-IS1,SI8621BC-B-IS,SI8642AB-B-IS1,SI8622BC-B-IS,SI8621EC-B-IS,SI8642BC-B-IS1R,SI86XXCOM-RD,SI8622BB-B-ISR,SI8622ED-B-IS,SI8621BD-B-ISR,SI8642BA-B-IU,SI8621AB-B-IS,SI8642BT-ISR,SI8622,SI86XXCOM-EVB,SI8642AB-B-ISR,SI8622ED-B-ISR,SI8642BD-B-IS,SI8621,SI8642BD-B-ISR,SI864X,SI8642AB-B-IS1R,SI8622BD-B-IS,SI8642ED-B-IS,SI8642EC-B-IS1,SI8622BC-B-ISR,SI8622EC-B-ISR,SI8621BB-B-ISR,SI8621AB-B-ISR,SI8642BB-B-IS1R,SI8622EB-B-ISR,SI8642AB-B-IS,SI8621ED-B-ISR,SI8622BD-B-ISR,SI8622EB-B-IS,SI8642EC-B-IS1R,SI8642BB-B-ISR,SI8642BA-B-IUR,SI8621ED-B-IS,SI8642,SI8642BC-B-IS1,SI8621BD-B-IS,SI862X
Si861x/2x Data Sheet
型号- SI861XBX,SI8621EC-B-ISR,SI8621BC-B-ISR,SI8622EX,SI8622ED-ASR,SI8621BB-ASR,SI8620BB-B-ISR,SI8622BT-IS,SI8620EB-B-ISR,SI8620BX,SI8621BT-ISR,SI8621BT-IS,SI8610EX,SI8621BD-ASR,SI8610BB-B-ISR,SI8622ET-ISR,SI8622ED-B-ISR,SI8622ET-ASR,SI8610ED-B-ISR,SI8622BC-B-ISR,SI8621EX,SI8622EC-B-ISR,SI8610BB-B-IS,SI8610ED-B-IS,SI8610ED-AS,SI8621EC-AS,SI8621ET-ISR,SI8610BC-B-IS,SI8621BD-AS,SI862XBX,SI8622EB-B-ISR,SI8620EB-ASR,SI8620BB-ASR,SI8621ED-B-ISR,SI8622EB-B-IS,SI8622BD-B-ISR,SI8621ED-B-IS,SI861XEX,SI8620BT-ISR,SI8610BD-B-ISR,SI8622EC-B-IS,SI8620ET-ISR,SI8620ET-IS,SI8621BB-B-IS,SI8622BB-B-IS,SI8620EX,SI8622BT-ISR,SI86XXXB,SI86XXXC,SI8610BC-B-ISR,SI8621BC-B-IS,SI8622BC-B-IS,SI8620BC-B-IS,SI8620BB-B-IS,SI8610EC-B-ISR,SI8610,SI8620EC-B-IS,SI8621EC-B-IS,SI8621BB-AS,SI8622ED-AS,SI8621ED-ASR,SI8622BB-B-ISR,SI8610BB-ASR,SI8622BX,SI8622ET-AS,SI8620ED-B-ISR,SI8622ED-B-IS,SI8621BD-B-ISR,SI8622ET-IS,SI8622,SI8620ED-B-IS,SI8620BB-AS,SI8620,SI8621,SI8610ED-ASR,SI8622EC-ASR,SI8620BD-B-IS,SI8622BD-B-IS,SI8620BC-B-ISR,SI8620EC-B-ISR,SI8610BX,SI862XXT,SI8622BB-AS,SI8621EC-ASR,SI8621BB-B-ISR,SI8610EC-B-IS,SI8610BB-AS,SI862XEX,SI861X,SI8610BD-B-IS,SI8621BX,SI8620BD-B-ISR,SI8620EB-B-IS,SI8621ET-IS,SI86XXXD,SI8621ED-AS,SI8620BT-IS,SI8620EB-AS,SI8621BD-B-IS,SI862X,SI8622BB-ASR,SI8622EC-AS
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品类:Switch Hall Effect Magnetic Position Sensor
价格:¥2.2924
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可定制波导隔离器频率覆盖5.5GHz~110GHz,插损损低至0.25dB、隔离度、正向方向功率、封装尺寸参数。
最小起订量: 1pcs 提交需求>
可定制射频隔离器/环行器(10M-40GHz),双工器/三工器(30MHz/850MHz-20GHz),滤波器(DC-20GHz),功分器,同轴负载,同轴衰减器等射频器件;可定制频率覆盖DC~110GHz,功率最高20KW。
最小起订量: 1 提交需求>
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