EEVblog #72 - Let's Design a Product

I find the real problem is how to design the front panel and how to imagine switches that can operate deep inside the boxed housing electronics. I think it becomes a mechanical engineering problem which strays from all the effort and excitement of realising the design. What's needed is that front end design handled by some computer process so that the electronic engineering is separated from it's commercial realisation but is automated if the design is taken to fruition by paying the cost.

Man this channel has been going for a long time. What an amazing resource for a novice! Thanks mate!

2023 lol. I've missed a lot of older clips 😁

Year 2023. Love u Dave!

99k is hard to find, but resistor divider networks are very cheap and far more precise than matching ±0.1%.

Dave, You're a Genius! This is a super video. Greetings from Ohio, USA.

Would be nice and easy to change the batteries to AA with the space I'm the jiffy. No bastard wants those useless coin batteries that cost a fortune and always go flat!

Brilliant. I truly admire inventors anden of science.

I cannot thank SMD Hall effect bidirectional current sensors pulling 50A with 150kHz bandwidth easing my life with 2kVAC isolation my GOD

Great, next time you say "that Samsung, (or imitator‘s) phone is too expensive" re-watch this video.
EVER tried making one?

It's 2022 & this video helping me a lot.
Thank u man.
U r legend 👌

You should be kept AWAY from a soldering iron, you squeaky voiced, knife wielding fake.

Got time?

Well done and well explained. ,,👍🏻🥰

Or anyone interested in Designs in general..

As products of universal inherent quantization "computation".., default time-timing designs, ..of course the elemental mechanisms are of total importance. Functional Devices focus attention on what, how and why.

Still watching in 2022!

12y later here i am watching and learning

Great

Hey @EEVblog Dave, do you do any 3D printing for your jiffy boxes?

11 years ago. Quality looks so good. Better than most I see now

I had bought an electronic blanket from a second hand store. It worked great I thought. It only used 8 watts. I thought "wow they have cone a long way. 8 watts nice.' then it broke a few years later. I went to buy another one to find out that I could not replace it. Every blanket I got was at least 150 watts. Devistated I didn't know what to do. I live in my RV. And to have an electric blanket that I could use for 3 or 4 days on my batteries was I wonderful thing. To use one that eats up 150 watts they would be dead in no time. 1 to 2 hours. The one I bought from the second hand store was clearly defective. But for me, it couldn't have been better. I need to find a way to bring a new blanket from 150 watts to 8 to 15 watts. So many of us love in RVs. And then there are the penny Pinchers. This would be a great thing to bring to market. Who needs 150 watts? That gets so warm it's uncomfortable. Can I just add a resister to the board somewhere to bring that down? Please help. And if you can't, can you point me in the right direction?

Really an amazing and enlightening session ! Thanks a lot !

how to join in EEVblog Community?

when you said the product was included in the 2009 catalogue, I thought you might have been taking a trip down memory lane, until I noticed this video is almost 11 years old. great standard of video for the time, and today!

Does this guy talk to people like that IRL? IRL, I'd want to smack him within 90 seconds. It's mainly the way he talks - I talk to small children like that to keep their attention.

this is very beautiful for one man to accomplish . i loved it . genius .

You could have left the space underneath without silk screen on both sides of the mainboard.

Red does look very sexy indeed

fantastic video

Ten years late to the show, but love the content. Was trained in electrical engineering and took a different path, but wanted to get back in as a hobby. This was exactly what I was looking to walk me through the thought process. Love it!

i wish i could sub you more...

Great advice ! did you make a video about the decisions made when you decided to make the Gold version ? that would be so useful to have you thoughts on the products evolution.

Really love this video. So much to learn. So well explained. Thanks thanks thanks

Your videos are simply timeless

Excellent video Dave, instead of fortuitous one may even say "elementary my dear Watson". Love the look of the end product, where can I buy one here in Australia?

Your approach to subject is lucid and spot on. But I have one point to make. Can you not design chopper stabilized amplifier to combat voltage drift? Whenever we measure low voltage this drift is comparable to input voltage being measured.

I love your channel but dear god, I hope you do't use equal signs like that anymore, thats horrible :-D

10 years old video and yet lots to learn from, thank you.

Thank you for such a great tutorial.
I wish I saw this job long before.
One thing I wonder about PCB layout, is there any countermeasure or consideration for precision measurement (opamp stage)?
The second thing is how should protection be for overcurrent?

That DP3T switch throughout the first 15 minutes is really bugging me when it could just be a SP3T switch instead.

From urban dictionary:
schmick
1. I say this in Australia to mean anything sick, cool, tight or excellent.
Usually the item is new, shiny, fresh and mad bling-bling style.

Too bad that they don;t sell boxes like the one you used but at half the depth.

51 minutes A lot time

Some prime innovation, here!! Thanks!!