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Noise causes reset in mega64
Hi  thank you for your advices  considering the above items , I checked my circuit again . Searching in the internet for similar circuit based on ade Ics, I found EMI...
Thursday, 14 April 2016 - 16:29
Noise causes reset in mega64
DocJC wrote:   A schematic of your exact circuit, and a photo of the setup would help.   Perhaps I'm missing something, but I don't see why the uC has to have a...
Monday, 4 April 2016 - 14:21
Noise causes reset in mega64
theusch wrote:I'll wager that if you investigate these incidents you will find spikes of tens of volts or more on AVR pins.   And what does the device data sheet say about...
Monday, 4 April 2016 - 14:08
Noise causes reset in mega64
js wrote: and a 10uf tantalum capacitor What made you select this value? Have you read, among other things,?   this is what I always use in my circuit - and I don't know...
Monday, 4 April 2016 - 14:06
ADE7753 energy meter IC + Atmega64
awneil wrote: More likely, something connected the wrong way around...   could you please explain about negative energy ?how can a wrong connection make this mistake ?
Tuesday, 29 March 2016 - 04:01
using CT (current transformer)
Kartman wrote:You need 1/6 of 3V, so use a resistor divider whilst retaining the 100Ohm burden resistor. if I use resistor divider , then the equal resistor that the CT sees would...
Tuesday, 29 March 2016 - 03:54
using CT (current transformer)
theusch wrote: A quick Google search for "ct rms schematic" uncovers many pertinent hits.  One of the first directs you to Thank you very much as you help me always ...
Tuesday, 29 March 2016 - 01:36
using CT (current transformer)
ka7ehk wrote: 1. You can use other than 100 ohm, but it is designed for 100 ohm load. Odds are, the calibration constant will not be correct unless you use 100 ohm. Why would you...
Tuesday, 29 March 2016 - 01:35
ADE7753 energy meter IC + Atmega64
Hi all I have found the answer myself ! it is just a Twos complement number !!  so the value 16753367 is :23849 
Wednesday, 23 March 2016 - 15:50
ADE7753 energy meter IC + Atmega64
Oh maybe I have posted my question in a wrong way What I wanted to ask was this : 1-I can read the voltage and current from the IC well so both the hardware and the communication...
Wednesday, 23 March 2016 - 11:53
Energy metering
Thank you very much for your kind reply  A new question is where did you find the "20samples per second" ?
Sunday, 6 March 2016 - 18:24
ADE7758 and ATmega32
As it was used in the ADE7758 evaluation board , i have used attenuation network resistor , a 1M and a 1K ohm to make a 220mv from the 220V voltage line . I have checked my...
Saturday, 27 February 2016 - 19:05