Author Topic: EEVblog 1561 - uSupply USB Power Supply - Part 20  (Read 9289 times)

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Offline thm_w

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Re: EEVblog 1561 - uSupply USB Power Supply - Part 20
« Reply #25 on: August 30, 2023, 09:51:14 pm »
Curious about the dual FETs as well, originally I thought it would be for power dissipation but they are not used in that way. I'm sure there was some justification. Ultra-safe against overshoot maybe.
Also with a tracking pre-regulator, might be able to get away with no heatsink at all.


Not many negative youtube comments so hard to tell what people didn't like.
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Offline EEVblogTopic starter

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Re: EEVblog 1561 - uSupply USB Power Supply - Part 20
« Reply #26 on: August 30, 2023, 11:44:53 pm »
Curious about the dual FETs as well, originally I thought it would be for power dissipation but they are not used in that way. I'm sure there was some justification. Ultra-safe against overshoot maybe.

I don't recall. It might be in the design notes somewhere.
 

Offline Nominal Animal

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Re: EEVblog 1561 - uSupply USB Power Supply - Part 20
« Reply #27 on: August 31, 2023, 03:40:40 am »
I do believe the reason for those downvotes are not in the video itself, but elsewhere; maybe something Dave has said on social media has riled up some activist types?

One reason I still cannot post under my own name is situations like this: when you find out there is an issue/problem/unhappiness/negativity, but no way to find out exactly what or why.  That still bugs me to no end.  Using a pseudonym gives sufficient buffer for me to realize it's just online social pretend stuff, and move on; if it was real, somebody would describe it.
 

Offline nctnico

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Re: EEVblog 1561 - uSupply USB Power Supply - Part 20
« Reply #28 on: August 31, 2023, 11:27:52 am »
I do believe the reason for those downvotes are not in the video itself, but elsewhere; maybe something Dave has said on social media has riled up some activist types?

One reason I still cannot post under my own name is situations like this: when you find out there is an issue/problem/unhappiness/negativity, but no way to find out exactly what or why.  That still bugs me to no end.
Ask yourself: who is the activist in the end? You for expressing your opinion or the people reacting to your opinion?
 
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Offline Nominal Animal

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Re: EEVblog 1561 - uSupply USB Power Supply - Part 20
« Reply #29 on: August 31, 2023, 12:09:37 pm »
I do believe the reason for those downvotes are not in the video itself, but elsewhere; maybe something Dave has said on social media has riled up some activist types?

One reason I still cannot post under my own name is situations like this: when you find out there is an issue/problem/unhappiness/negativity, but no way to find out exactly what or why.  That still bugs me to no end.
Ask yourself: who is the activist in the end? You for expressing your opinion or the people reacting to your opinion?
Are you serious?

Reacting to an opinion by downvoting a completely unrelated video by the same person, is a behaviour pattern that labels you an asshole.

Ask yourself: Who is the asshole here?
 

Online RoGeorge

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Re: EEVblog 1561 - uSupply USB Power Supply - Part 20
« Reply #30 on: August 31, 2023, 12:29:08 pm »
On YouTube I see 1670 thumbs up and 69 down at 37000 views.
No idea what the normal should be, but that ratio doesn't look bad to me.
« Last Edit: August 31, 2023, 12:31:20 pm by RoGeorge »
 

Offline nctnico

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Re: EEVblog 1561 - uSupply USB Power Supply - Part 20
« Reply #31 on: August 31, 2023, 01:08:52 pm »
I do believe the reason for those downvotes are not in the video itself, but elsewhere; maybe something Dave has said on social media has riled up some activist types?

One reason I still cannot post under my own name is situations like this: when you find out there is an issue/problem/unhappiness/negativity, but no way to find out exactly what or why.  That still bugs me to no end.
Ask yourself: who is the activist in the end? You for expressing your opinion or the people reacting to your opinion?
Are you serious?

Reacting to an opinion by downvoting a completely unrelated video by the same person, is a behaviour pattern that labels you an asshole.
You are missing the point. I wasn't reacting to downvoting the video but to your statement that you are not going to share your opinion because people might react to it.

About downvoting a video: who cares! Unconstructive criticism
« Last Edit: August 31, 2023, 01:21:01 pm by nctnico »
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Online SiliconWizard

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Re: EEVblog 1561 - uSupply USB Power Supply - Part 20
« Reply #32 on: August 31, 2023, 09:04:56 pm »
I do believe the reason for those downvotes are not in the video itself, but elsewhere; maybe something Dave has said on social media has riled up some activist types?

One reason I still cannot post under my own name is situations like this: when you find out there is an issue/problem/unhappiness/negativity, but no way to find out exactly what or why.  That still bugs me to no end.  Using a pseudonym gives sufficient buffer for me to realize it's just online social pretend stuff, and move on; if it was real, somebody would describe it.

I understand that, and it's all due to the very wide exposure we get on online social networks, something that's very new in our history and that we certainly have never had a chance to evolve to accomodate it yet (if we ever do.)

People can get very negative and insulting - compared to what they would do "irl", sometimes as far as death threats - partly due, I think, to the disinhibition that comes with being behind a screen, and partly to the "mob" effect (if a few people start insulting someone online, then it is very likely to snowball). The mob effect has always existed, but obviously when the potential mobs go from a few/a few tens of people to potentially millions of them, this is a completely different story.
With such large numbers, from a purely probabilistic POV, you're bound to run into a few people that just want to rip you apart for absolutely no reason. That's just probabilities.

Thing is, online, many of us tend to act as though we had little to almost no inhibition, while inhibitions are what has made social interactions possible at all without society literally collapsing and everyone killing everyone else.
Some people have no inhibition of this kind due to a damage in - I think - the frontal cortex. This usually makes people who act as though they had no morals and no limits. Horrific.
The "virtual" nature of online interactions seems to trigger that to some degree.

So anyway, I don't blame people for protecting themselves from that. It can be devastating.
 


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