Great findings, so many thanks!
Also and most of all for extrapolating the suitable value for resistor. 👍
Okay, I think I got it: 1V only of overvoltage is not enough for my PS (of that type), right?
Please, what would be the side effects?
Thank you for your appreciated reply.
Please note that - whether it's reasonable or not - I like oversized power supplies and then just for fun I want to try if I notice improvements in sound quality by replacing the power supply that gives power to my SSD (and the related USB to SATA Bridge unit, of course) connected to my Digital Transport with the (supposedly) modded one in OP.
Thanks.
You heard what you wished to hear with trying out but you can also measure what the power consumption is. That is more technical approach but it works for many. That gives a kind of certainty as you can calculate if it will work out or not. For example peak currents of 2.2A are not seen when trying out but they noticed when measuring. The way the PSU is made now is that it has a 2 x 12V 30VA transformer so about 2A continuous current. Then you just know the PSU is too light. Probably max. current is also electronically limited.
Don't even think of side effects when offering too low voltage or too high if the basics are already too much for you. Please note that there are 2 x "too" in that sentence and that are 2 too much.
No your PSU needs internally a higher DC voltage than the desired output voltage to work correctly. The regulator part needs quite a few DC Volts higher at it input to be able to regulate to 5V. I guess in this device it is around 4 to 5V difference but I leave that to you to find/investigate.
Don't even think of side effects when offering too low voltage or too high if the basics are already too much for you. Please note that there are 2 x "too" in that sentence and that are 2 too much.
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Thanks, but you did not post even a single number, only wishes/opinion, so it´s hard/impossible to confirm whether your PSU is actually oversized or incompetent for the job.
First time in this thread you make any reference to PSU load, it should have been on the first post, and in more detail.
Respective manuals must/should quote power consumption for each device.
EDIT:
Catastrophic.
What strikes me often is that people without knowledge in this field (I am NOT referring to the OP) don't give any relevant info except some soft stuff that is useless, ask many a question, get appropriate answers in detail ... and then still just try it out the way they think it will work OK (often least effort). How many times I have seen the damage of using the wrong external SMPS/adapter?! When it goes kaputt they ask then if you can repair it. An annoying pattern as apparently everything must be possible while it is not like that in reality. That "anything goes" way of thinking should not be the robber of my time.
Todays answer is: well, no I can't as I already spent that time explaining to keep it functioning 🙂
Todays answer is: well, no I can't as I already spent that time explaining to keep it functioning 🙂
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Yes, I can confirm that.
I meant I knew those pads had the function of being able to change the output voltage, but I didn't know exactly how and nobody had answered me in this regard.
Then jan.didden does reply (thanks again!) hitting the nail on the head and explaining to me perfectly how to do it (that's what I wished to hear).
Many thanks for your technical explanation and yes I know I can measure everything you describe, but please note that simply I don't want to do it.
Please, didn't you touch the idea that before buying my power supply with an output of 9VDC I first informed myself about its electrical features?
Well, I did it!
IMHO, great reply.
Short, precise and comprehensive: exactly what I wished to hear, many thanks!
Sorry if this sentence appears to me a bit arrogant for at least the following reasons:
You know some things.
I don't know them.
You freely decide to write about them.
I freely decide to read that and possibly to make a certain use of that.
The end.
Furthermore, you don't know me.
And I do not know you.
Nothing on this earth authorizes you to write what is "too much" or not "too much" for me.
Thanks.
Well, no.
Please note the following: never and never again I asked for the following kind of information: "Is this power supply adequate to feed this device?"
As said somewhere else, please didn't you touch the idea that before buying my power supply with an output of 9VDC I first informed myself about its electrical features?
Well, I did it!
If I may, this is possibly your mental form that makes you answer even what has not been asked.
Please mind that I'm not criticizing it I'm just taking note of it since you continue to kindly respond to what I've never asked.
As a matter of fact, please note I just asked for reducing the output voltage of my power supply and nothing else.
At least two posters understood it very well, responding exactly to what is kindly requested.
No offence intended, of course.
Thanks.
P. S.: Next time please do indicate that in a quoted sentence of others the bold is yours, thanks.
Well, no.
If I may: possibly do you think your mental form should be the mental form that everyone should have?
I really hope not.
For yourself, certainly not for me.
As said: you freely decide to write here.
But this fact does not give you any right about others and/or most of all on what you rant about other "unidentified" persons hijacking a thread.
In other words, what you rant above is just an issue of yours, and IMHO it auto-explains "some" things...
No offence intended, of course.
Thanks. 🙂
Of course 🙂
BTW I think the PSU in it several versions has probably some decisive parts when it is being produced for a certain output voltage. It may very well be that the factory uses other caps for the 12V output version compared to the 5V version as voltage AND current ratings are different so possibly current limiting and ripple voltage differ. Not knowing the load current and only setting the output voltage lower and changing a transformer (or not) may not lead to success. Just a hint. It is all quite basic with Volts and Amperes and when one of those is unknown things become speculation or "just doing something".
And yes, you don't know enough when asking questions of which you already decided on the right sounding and desired answers (and refuse to do basic measuring). I take the right to laugh about that but that is because of my mental form.
BTW I think the PSU in it several versions has probably some decisive parts when it is being produced for a certain output voltage. It may very well be that the factory uses other caps for the 12V output version compared to the 5V version as voltage AND current ratings are different so possibly current limiting and ripple voltage differ. Not knowing the load current and only setting the output voltage lower and changing a transformer (or not) may not lead to success. Just a hint. It is all quite basic with Volts and Amperes and when one of those is unknown things become speculation or "just doing something".
And yes, you don't know enough when asking questions of which you already decided on the right sounding and desired answers (and refuse to do basic measuring). I take the right to laugh about that but that is because of my mental form.
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For your own safety please check that PE thingie. Safety and shielding, that's a win win in a mentally challenged technicians mind.
You can laugh at what and who you want in your private, but not in a public thread. IMNSHO
P. S.: Sorry if my previous post quoting your post before your recent editing. 🙂
I perfectly understand it because exactly the same happens to me too.
When/if your comments are not only authoritative (just like yours I truly think they are), but also in a friendly way you surely will get at least the same friendly and genuine tones in response.
Relax guys
All good, we have to learn somehow.
Basically we just need to know how much current the device your operating needs.
Or if multiple devices, then the total current of all the devices added together.
The intentions, were to make sure the regulator will be strong enough.
And also if a linear regulator, to help determine the correct transformer size
and voltage needed.
All good, we have to learn somehow.
Basically we just need to know how much current the device your operating needs.
Or if multiple devices, then the total current of all the devices added together.
The intentions, were to make sure the regulator will be strong enough.
And also if a linear regulator, to help determine the correct transformer size
and voltage needed.
No it is not the same. It was not me that decided to give a public psychological report and/or hidden derogative personal comments when receiving good information. It is completely as expected, the balance in time and effort goes too much to the same side. I happen to know something about electrical items (please note the ratio of asking/giving information posts) and choose function over form communication as that is my culture. The information I gave is simply valid and may not be the beforehand desired answers (that no real tech will ever understand as it is ignorance and ignoring facts) in the ever so important tone that apparently goes one way. Intention is to spread knowledge and prevent damage costing time and money and to prevent waste of energy. OP's interest so to speak.
I illustrated in my reply to JMFahey what often happens in todays society. Knowledge is often ignored and the repair is the reward.
Bye!
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Please, believe me if I tell you that I have nothing against you and that I am really sorry if you took it.
However, please note that you started saying not exactly appropriate words (IMO) or that anyway I've interpreted as such because - perhaps - English is not my first language.
Then, if you want, please note that Healthcare is my field of activity as Medical Information Scientist and when any question is asked to me I answer according to my skills and then I leave the applicant completely free to choose from the different options he has and to act as best he believes appropriate and (most of all) I don't get offended at all if he does not follow my "technical" indications.
Someone would call it: (let he be free to do his own) Experience.
This way not only do I leave my interlocutor totally free from my possibly "interests", but he could discover (even being wrong) something new and never experienced before.
Someone would call it: Progress.
I understand that the electronic technique is a different subject, but also in that field if you do not make a mistake you don't learn.
Simply my opinions.
Sincerely, I repeat: please believe me if I tell you that I've nothing against you (and against no one else!) and that I'm really sorry if you took it.
Goodbye
However, please note that you started saying not exactly appropriate words (IMO) or that anyway I've interpreted as such because - perhaps - English is not my first language.
Then, if you want, please note that Healthcare is my field of activity as Medical Information Scientist and when any question is asked to me I answer according to my skills and then I leave the applicant completely free to choose from the different options he has and to act as best he believes appropriate and (most of all) I don't get offended at all if he does not follow my "technical" indications.
Someone would call it: (let he be free to do his own) Experience.
This way not only do I leave my interlocutor totally free from my possibly "interests", but he could discover (even being wrong) something new and never experienced before.
Someone would call it: Progress.
I understand that the electronic technique is a different subject, but also in that field if you do not make a mistake you don't learn.
Simply my opinions.
Sincerely, I repeat: please believe me if I tell you that I've nothing against you (and against no one else!) and that I'm really sorry if you took it.
Goodbye
Notice even the partial brochure you copypasted twice, on posts #27 and #28 tells you to
measure the power you need
As of:
Said side effects may be dangerous on not, fully depending on current consumption, hence our demand for clarification.
measure the power you need
As of:
please be aware that a sensible answer will also include a warning about very probable and real problems, call it side effects if you will, created by what you want to do; in this case changing output voltage.
Said side effects may be dangerous on not, fully depending on current consumption, hence our demand for clarification.