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As per the datasheet(page 58), PMAX = 33,516,139 = 0x1FF6A6B, the instantaneous power computed when the ADC inputs are at full scale. So will dividing the value obtained from the register by Pmax give me the actual wh value ?
Thanks for your reply. But the values given out of these registers are 32 bit. I was thinking how do I convert it to the actual value. I think there is some conversion factor.
I have interfaced a smart energy meter IC (ADE7878) to a microcontroller. The datasheet of the IC can be found here, https://www.analog.com/media/en/technical-documentation/data-sheets/ADE7854_7858_7868_7878.pdf. As per the datasheet, on page 50 total active power of each phase can be read from...
Current Transfomer (CT) ratio setting on energy meter
I am using a smart energy meter which allows me to set the CT ratio among other parameters. I am using 50/5 ratio AC CT's. For the meter to do the kwh calculation correctly, I believe I have to set primary CT ratio to 50 and secondary CT...
I have a DVR camera with a serial port and also an ethernet port. 4 cameras are connected to this DVR. I can connect this ethernet or serial port to my controller. From my controller board (running on ubuntu ) which also has GSM, would I be able to stream the video to a server ?
I have a HL6548-G and a HL8548-G module with me. I wanted to implement a dialup modem for these modules. I was thinking of using wvdial in linux for this purpose. Anyone else has any suggestions ? Also, I also need the GPS data from the module for which I have to use AT commands in my code. With...
I am running xillinux on my microzed board. I need to define a new serial port on the board using vivado. I was able to add this to the IP core and the device is ready. But,how do I make this port visible on ubuntu (xillinux) like ttyPS0. DO I need to add this port to the device tree and...
I have currently installed the latest xillinux OS on a 7020 Microzed Board. I used the USB image kit version 1.61 in windows 8 to install the OS. Images were downloaded from here (https://xillybus.com/xillinux). So there are two partitions basically created by this image, one boot partition (FAT...
Ya, by mistake I had connected a load directly to the relay. The high current must have damaged it. Because the relay can take around 5 amps. But even the relay shouldn't click. It does click and the output is getting reduced to 12 volts from 120 volts which is weird. It is behaving like a...
I have a sugar cube relay which I am using with my controller. It turns On/Off when high or low signals are sent from the microcontroller. It can take upto 240V AC at 10 amps. The way the relay circuit board is that I connect the positive and negative of DC or AC Line and neutral at the input...
I am looking to use a 100-200ah battery for my inverter. There will be a charge and discharge cycle everyday. So in terms of safety, life cycles, cost, rugged usage, rapid charging and discharging, which is the best battery to use ?
I wanted to know if there is a minimum current draw on the AC to DC converters from the AC source when it is connected to an input voltage of 120V (60Hz), when no load is connected at the output of the converter ? Is this current draw constant ?
For example, if we consider this converter from...
Effect on ambient temperature on Battery (lead acid, AGM, lithium)
Most of the manufacturers state the number of cycles for batteries at a temperature of 27 degree celsius. My question, how will the batteries (Lead acid,AGM,lihtium) be affected when charged/operated at ambient temperatures...
Thank you.
Also, how much time would it take to charge the batteries (40-50 amps charging current) back to 100% from 20%,30%,50%,70% of charge left ? I have a lead acid charger which can charge upto 50 amps.
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