• ADE7854A, ADE7858A, ADE7868A, ADE7878A

    Hi all,

    I'm designing power meter and analyzer. I consider using one of the above mentioned metering ICs.

    I was looking at the datasheet for detailed technical specifications, however the datasheet was little confusing.

    I need to have an exact…

  • ADI 三相智能电表参考设计 ─ 基於ADE7858A和SIM900A(转贴)

         要想对风能、太阳能、水能等绿色清洁能源进行大规模开发、远距离输送和高效率利用以期切实改变全球能源格局,就必须将这些绿色能源转变为电能并通过一个集成先进的信息化、自动控制、储能、调度等技术的坚强智能电网对这些绿色电能进行集约化管理。而智能电表是构建智能电网的关键基础设施。因此,绿色能源的发展和智能电表的发展是密切相关的。我们紧跟绿色能源和智能电网的发展步伐,为智能电表行业提供高性价比的产品和优良的服务。基于上述的发展趋势和服务理念,我们准备了三相智能电表的参考设计。详细如附件.

  • 关于ADE7858A使用的若干问题

    使用芯片过程中出现了一些问题,请教一下。

    1.各相空载时,读出来的频率和功率因数不是一个稳定的度数,而是一个不确定的值。这正常吗?

    2.必须在WTHR,VARTHR,VATHR寄存器之后设置空载值寄存器VANOLOAD,AONOLOAD,VARNOLOAD,无功电能累计才会有效,否则要么不累计,要么就是累计一个比较大的负数。(情况比较多,具体怎样设置会出现那种情况记不清了)

    3.手册上说的"数据存储RAM寄存器”启用写保护之前,"向队列内的最后 一个寄存器写入三次,以确保将其值写入RAM…

  • RE: ADE7880 or ADE7978 for Industrial panels power monitoring?

    Hi Eduartua

    Yes. You are correct in saying that for very large currents such as 1000A, shunts are not a good choice for current sensing. In that case, you can always go for CTs or Rogowski coils that support such current levels. Just make sure to not…

  • ADE7858A硬件连接!

    1.ADE7858A裸露焊盘exposed pad应不应该接AGND?(英文手册说一定要接AGND,中文手册说不要有任何电气的连接那只是加强机械强度和散热的?)  

    2.ADE7858A采用的晶振一定是要16.384MHz的晶振吗?16.32MHz的行吗?

    3.我的功率表电压输入用电阻分压的方式,对于3相4线还行,对于3相3线这种没有中线和地线的现场应用该如何接线,没有参考点7858A如何采样啊,软件上又该如何调节呢?

  • RE: Required 3-phase energy metering IC

    Hi Sai,

    For measureing a 3 phase system at 400Hz I would recommend using a part such as the ADE7858A or ADE7868A if you want to use CT's to measure the current. If you rather use shunts for the current measurement then I would recommend the ADE7978 with…

  • ADE7858A Phase B calibration in 3 wire delta system

    I have been using the ADE7858A chip for a particular monitoring application. Now when the configuration is used to monitor a 3 phase Delta system(Phase B is the reference) I understand that the Phase A & Phase C registers read out the Line to Line voltage…

  • RE: 急,急,急 ADE7878 SPI通讯问题

    ADE7858A外部的晶振没有起振,但SPI的时钟是没问题,包括AVDD,GVDD,VREF,PM0,PM1上的电平都是正确的,但就是外部晶振没有起振,请问可能的主要原因是什么?更换过晶振,电容也是按指导要求配的。。。

  • RE: ADE7758 interface to Microcontroller through SPI

    Hi Panneerrajan

    Yes. In that case, you could use a potential divider (total resistance in the order of 10kohm or so) as well to do the same for the ADE IC 5V logic level outputs. If this is to make a utility grade energy meter, I would recommend going…

  • Power up procedure for ADE7878A

    Hello 

    I'm currently using AD7878A with atmel microcontroller. communication between the two is through SPI (isolated using isolators) and power domain of ADE7878A and Microcontroller is different. In datasheet it has written that

    "it is necessary…