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Hi,
I recommend to use a simulation tool.
****
Please craete a table where we can clearly see the problem:
R_t | expected_U1A_out | measured_U1A_out | expected V_ISO_POS | measured V_ISO_POS | expected_ADC_value | measured ADC_Value
The table should include "good" values as well as "bad"...
Very true.
What I wonder is: .. If I personally have an idea about modifying a circuit .... it´s my idea. So it´s me, who should have a reason for this modification. I do this because I want to achieve a goal. And I should have a description or in best case a value for this goal.
But I...
in another phase shifter?
Isn´t it like:
I want to bake a chocolate cake.
But in another cake receipe they used pineapple.
Why should I care about the other cake receipe?
Or did I misunderstand something?
Klaus
Hi,
you may find documents showing equivalent types.
Often there are no 100% equivalent types.
So from these documents, I may get an idea, but in either case I cross check the according datsheets .. especially for the values that are important for my application.
Example:
Let´s say they give...
Hi,
you have 604,800 seconds in one week. or 0.6 million.
if you now have 15 seconds per week this will equal to 15/0.6 = 25 (ppm)
(Indeed I expected you to do this simple math .. and compare the value with the XTAL datasheet)
We don`t have the datasheet to compare with. .. Regarding initial...
Hi,
hopefully you recognized the ADC´s ENOB to be somewhere worse than 16 bits.
If you want some signal quality ... then you will need an amplifier, maybe not that high gain, and equipped with a pot for offset adjustment.
For sure digital pots would make the offset adjustment as easy as...
Hi,
whats your concern:
* noise generated by the SMPS --> then look up the SMPS datasheet on noise specification about magnitude and frequency range.
* noise generated by your PCB --> then you need to investigate the niise sources, frequencies (including overtones)
***
In either case: It´s...
placement wise..
you will need amplifiers.
And if the sensor signals are in in the nV range, then sensor supply, sensor wiring, shielding and filtering needs to be done very carefully.
Klaus
1) What is your "maximum efficiency"? How do you measure it? Frequency is not a measure of efficiency at all.
An inductive current does not result in real power. So it does not affect efficiency.
The same is with capacitive current.
2) You talk about resonance. This is when X_L = X_C. Which...
Hi,
unnecessary?
But it was you who referred to the datasheet. So if you think it is unnecessary .. why did you read it at all?
I can answer it: Because it is by far not unnecessary, it is essential instead!
It tells you how to use the chip correctly.
For sure you may read an "audio...
Hi,
you refer to an ADC
and to a datasheet.
But you hide the manufacturer/type of ADC
and you don´t give a link to the datasheet.
This makes helping difficult. We can not find out what the datasheet really says and how they meant the whole power supply system to work.
We can not validate the...
Hi,
"I can´t run ..." is no error descripton.
We don´t know what´s happening. (unless you tell) Is there an error? What do you expect ... that does not happen.
Klaus
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