Withdrawn - Page 1
Forum section: electronics / general

author: sk2593@cornell.edu
author_rank: Newbie
timestamp: January 20, 2016, 07:57:11 pm
content: Withdrawn

author: drussell
author_rank: Super Contributor
timestamp: January 21, 2016, 01:40:25 am
content: Quote from: sk2593@cornell.edu on January 20, 2016, 07:57:11 pmOh, really?And how exactly are you planning on doingthat?!

author: John_ITIC
author_rank: Frequent Contributor
timestamp: January 21, 2016, 02:03:07 am
content: This will be interesting.

author: SL4P
author_rank: Super Contributor
timestamp: January 21, 2016, 02:14:08 am
content: Well at least it's not crowd fundedOops - yes it isCall Bob, he's looking for his next IGG project.

author: Towger
author_rank: Super Contributor
timestamp: January 21, 2016, 02:18:21 am
content: Must be a windup.

author: Mechatrommer
author_rank: Super Contributor
timestamp: January 21, 2016, 03:30:48 am
content: Quote from: sk2593@cornell.edu on January 20, 2016, 07:57:11 pmoh no, not again

author: MrSlack
author_rank: Frequent Contributor
timestamp: January 21, 2016, 07:18:52 am
content: Engineer to MBA ratio FAIL. If there's anything I've ever seen as concrete is that engineering driven startups are the most likely to succeed and MBA driven are most likely to fail.How many MBAs does it take to change a light bulb? None, they come up with the most contrived way of doing it, get VC funding for their new turn-a-matic light bulb extractor on a stick, hire a series of engineers who laugh their way to the bank, end up blowing the entire budget on apologising on kickstarter for spending the entire VC capital on Herman Miller chairs and cocaine and finally end up sleeping on someone's sofa because they bankrupted themselves.If you want evidence of this, go and see how many batches of Herman Miller Aeron chairs are on eBay

author: rx8pilot
author_rank: Super Contributor
timestamp: January 21, 2016, 07:41:31 am
content: Experienced engineer...... No pay........ Startup........ Arduino.......revolutionize.Sent from mobile device.... Keeping it short and mis-spelled

author: station240
author_rank: Unknown
timestamp: January 21, 2016, 09:14:50 am
content: Quote from: sk2593@cornell.edu on January 20, 2016, 07:57:11 pmYou're planning to use a LM317 linear regulator from The Ark in a high current battery charger ?Should be interesting to see the heat/smoke output from that.

author: SL4P
author_rank: Super Contributor
timestamp: January 21, 2016, 09:18:19 am
content: Quote from: station240 on January 21, 2016, 09:14:50 amSo the MBA has identified the technology and components to be used...Perhaps they can dispense with the EE, and simply get a PCB designer...?

author: EEVblog
author_rank: Unknown
timestamp: January 21, 2016, 10:10:46 am
content: Quote from: drussell on January 21, 2016, 01:40:25 amMy thought exactly.Do you realise that charging touchy exothermic battery technology like LiIon outside the very strict conditions is dangerous? Right?

author: EEVblog
author_rank: Unknown
timestamp: January 21, 2016, 10:18:42 am
content: Quote from: sk2593@cornell.edu on January 20, 2016, 07:57:11 pmSo if this your own battery chemistry?What exactly is the technology innovation in your "powerbank" battery?1500mAh in 5 min = 1.5A x 12 = 18A charge rate (12C)http://batteryuniversity.com/learn/article/ultra_fast_chargers

author: MrSlack
author_rank: Frequent Contributor
timestamp: January 21, 2016, 10:38:51 am
content: It doubles at an incendiary device of course!

author: Delta
author_rank: Super Contributor
timestamp: January 21, 2016, 03:22:39 pm
content: Hahaha!Best of luck with this one Sandeep!

author: suicidaleggroll
author_rank: Super Contributor
timestamp: January 21, 2016, 04:14:09 pm
content: Quote from: sk2593@cornell.edu on January 21, 2016, 03:10:31 pmWTF is a watt/min?

author: wraper
author_rank: Unknown
timestamp: January 21, 2016, 04:24:08 pm
content: Quote from: sk2593@cornell.edu on January 21, 2016, 03:10:31 pm

author: MrSlack
author_rank: Frequent Contributor
timestamp: January 21, 2016, 04:26:29 pm
content: Quote from: suicidaleggroll on January 21, 2016, 04:14:09 pm1/60th of a joule?

author: tom66
author_rank: Super Contributor
timestamp: January 21, 2016, 04:52:06 pm
content: Quote from: suicidaleggroll on January 21, 2016, 04:14:09 pmHey, at least it's not kWh per hour.Quote from: sk2593@cornell.edu on January 21, 2016, 04:51:24 pm90 watts per minute makes no sense. Watt is power, you need to use a unit of energy, like joules, Wh, kWh, kilocalories.What field is your engineering degree in and from what university? If it's an electronic engineering degree I would be asking for a refund.

author: suicidaleggroll
author_rank: Super Contributor
timestamp: January 21, 2016, 06:41:33 pm
content: Quote from: tom66 on January 21, 2016, 04:52:06 pmHe claims to be from Cornell. I've been to Cornell before, and I know a handful of people in the graduate EE department there, they're not idiots. If any one of them ever said "watts per minute" in this context, they'd get smacked in the face. If not by me, then by any of the students or faculty in the room.

author: suicidaleggroll
author_rank: Super Contributor
timestamp: January 21, 2016, 06:43:56 pm
content: Quote from: MrSlack on January 21, 2016, 04:26:29 pm1/60th of a joule per second squared. It's an energy acceleration, and makes no sense in this context.

author: coppice
author_rank: Super Contributor
timestamp: January 21, 2016, 06:49:59 pm
content: Quote from: suicidaleggroll on January 21, 2016, 04:14:09 pmIt would be a rate at which a power level is changing. Not a stupid unit, but not the correct one in the current context.

author: suicidaleggroll
author_rank: Super Contributor
timestamp: January 21, 2016, 06:57:33 pm
content: Quote from: coppice on January 21, 2016, 06:49:59 pmYou're right, it could make sense, but not in this context. I could chalk it up to a typo, but then he wrote the exact same thing again. Anybody who does not know that a watt is already an energy rate should not be going anywhere near power system design.

author: SL4P
author_rank: Super Contributor
timestamp: January 21, 2016, 10:23:51 pm
content: ok, I got it...MBA = master of battery analysisthe charge rate will require battery leads the thickness of your pinky finger +/ - /sense combined.Good Luck.

author: MrSlack
author_rank: Frequent Contributor
timestamp: January 21, 2016, 10:53:31 pm
content: He's reading this and now has "room temperature superconductors" on the spec sheet.

author: rx8pilot
author_rank: Super Contributor
timestamp: January 22, 2016, 05:28:26 am
content: The 'maker movement' and start-up mania seem to have delivered the world many big dreamers but without the skills or the patience to chase those dreams. To randomly drop into a public forum and drop a poorly considered 'opportunity' for someone to get in on a revolutionary idea seems ludicrous to me.If this were my dream, and my butt on the line - I would make a real presentation. Not to toot my own horn, but I made better, more convincing pitches 20 years ago long before there were easy tools to craft a presentation. I raised money, got partners, built businesses and sold them. I am seeing a trend of bizarrely horrible business pitches from people that claim to have a substantial education. MBA students from Cornell? Seriously? (side note, I looked at the Cornell site and couldn't find a business dept. - do they even have an MBA program?)Regardless, you really should think through your idea and consider how others will receive it. A public plea for help on a forum seems odd, but not nearly as odd as the content of the pitch.With all that, I will not invest or offer any help. Not to be an ass, but being realistic. Have some pride, do the work, do the research. If you want free labor that is actually worth anything, you need to get out of your 8th grade level and be a business leader. Your pitch only gives me reason to chuckle and walk away. As you and your team move forward, keep in mind that people like me are the way it is in business. If you want my money or my time, you better be a pro. On the other hand, you could be happy with a marginally experienced young person that will hack at the problem and may or may not get anything done. This pitch claims to have a revolutionary product and is effectively looking for a beginner?

author: EEVblog
author_rank: Unknown
timestamp: January 22, 2016, 06:20:37 am
content: Quote from: sk2593@cornell.edu on January 21, 2016, 03:10:31 pmErr, your battery charger won't work then. You clearly do need an engineer to design it for you.I suggest you go and read how lithium ion batteries actually charge. I suggest you start here:http://batteryuniversity.com/learn/article/charging_lithium_ion_batteriesNotice how they need a bit more than 3.3V for charging. Typically 4.2V +/- a small tolerance, depending upon actual chemistry.Your Lithium Titanate are less though.QuoteHave you actually measured the capacity of the recharge you gave it?What is your criteria for charge cutoff?And BTW, who cares about Lithium Titanate batteries? Great if you are building them into an electric car or something (IIRC the iMIEV uses them), but what products use individual cells that need recharging in your widget?

author: TheSteve
author_rank: Unknown
timestamp: January 22, 2016, 06:47:15 am
content: And I thought it was scary when I charged 1200 mAh NiCad cells at 40 amps years ago. I really don't want the average consumer charging lithium cells that fast.

author: MrSlack
author_rank: Frequent Contributor
timestamp: January 22, 2016, 10:07:22 am
content: Quote from: rx8pilot on January 22, 2016, 05:28:26 amThe whole maker movement principle does my head in if I'm honest. It's a marketing fad. It doesn't need a label or a movement. All it does is cheapen what people do and artificially motivate people to throw out dangerous, poorly conceived ideas to the masses. Some of the stuff I see is beyond lethal.

author: Simon
author_rank: Unknown
timestamp: January 22, 2016, 01:10:42 pm
content: Quote from: MrSlack on January 22, 2016, 10:07:22 amI agree. People have been designing and making things for years. But of course people macking and selling things jumped on the band wagen to enthuse a lot of people who would get nowhere and sell them stuff.

author: Xenoamor
author_rank: Regular Contributor
timestamp: January 22, 2016, 01:37:29 pm
content: I think if you could make a universal rechargeable battery charger with:Spring loaded clips to fit various battery sizesCould detect the battery chemistry and charge correctlyIs cheapYou might have a product.I don't think you should go designing it to supply 30+A for car batteries. There isn't a market for it.Perhaps have a fast charge battery pack in the device so you can carry it around and charge anything out in the field or on long car journeys/camping trips.

author: suicidaleggroll
author_rank: Super Contributor
timestamp: January 22, 2016, 02:37:57 pm
content: Quote from: Xenoamor on January 22, 2016, 01:37:29 pmHe would, if it didn't already exist. $18 on Amazon:http://charger.nitecore.com/product/intellicharger-i4And their D4 charger can handle even more battery chemistries.

author: BravoV
author_rank: Super Contributor
timestamp: January 22, 2016, 03:51:04 pm
content: Quote from: sk2593@cornell.edu on January 20, 2016, 07:57:11 pmQuote from: sk2593@cornell.edu on January 22, 2016, 01:24:01 pmHey Sandeep, is there any chance you're one of those so called "Arduino Engineer" ?

author: krish2487
author_rank: Frequent Contributor
timestamp: January 22, 2016, 06:36:44 pm
content: So you are a software engineer from a school of management...@bravoVArduino didn't help create idiots/incompetents. It just helped expose them..Quote from: BravoV onTodayat 02:51:04 AM

author: rx8pilot
author_rank: Super Contributor
timestamp: January 22, 2016, 06:40:33 pm
content: OP deleted his opening post!Not what I expected, but not surprised that he crumbled at the first sight of a challenge. Not so glad I wasted my time responding. He did send me a PM this AM instead of addressing the group, saying he never claimed that this was revolutionary. I remember different, but the first post is deleted so I cannot confirm that.It is frustrating to see this wave of massively over-optimistic 'change the world' with a 'revolutionary' ideas bubbling to the surface. I totally applaud the enthusiasm, but for an idea to be monetized into a practical business it needs more than just a conversation followed by a post seeking partners on a public forum. If this guy is actually an MBA student or graduate at Cornell, it leaves me wondering WTF are they teaching for all that student loan money?I guess as long as the schools are churning out dysfunctional graduates, I will have less competition to worry about. For an MBA to be worth more than a pack of gum, you need THICK SKIN, perseverance, tenacity, endurance, willingness. Those are personality traits that you do not learn from a book. Without those, you are just a guy who passed a test and has a paper to prove it.

author: wraper
author_rank: Unknown
timestamp: January 22, 2016, 06:48:09 pm
content: Quote from: rx8pilot on January 22, 2016, 06:40:33 pmHe indeed did.Quote

author: rx8pilot
author_rank: Super Contributor
timestamp: January 22, 2016, 06:56:35 pm
content: My memory sub-system still works! Thanks for digging that up.

author: SL4P
author_rank: Super Contributor
timestamp: January 22, 2016, 10:26:51 pm
content: I wonder how Sandeep's going to explain the progress of this conversation to his partner - the other MBA?It kinda easy to see the flag that he's not much good at either of his chosen professional activities - yet.He still has a chance to grow and learn.

author: SL4P
author_rank: Super Contributor
timestamp: January 22, 2016, 10:36:25 pm
content: Quote from: SL4P on January 22, 2016, 10:26:51 pmit sounds like he has been doing ok. Stick to the software management.QuoteAlso LinkedIn page....https://www.linkedin.com/in/sandeep-kuthyar-30935334

author: Corporate666
author_rank: Unknown
timestamp: January 22, 2016, 11:28:24 pm
content: I think the OP got flamed a bit harshly... his pitch was a lot better than the "lights in the sneaker" guy. But that's just my view - not saying it was a good idea, just he was starting from a better position than sneaker-dude.But the good thing about flaming entrepreneurs (or would-be entrepreneurs) is that it really doesn't matter. The good ones will succeed anyway and the ones who turn tail and run were never going to succeed anyway. Not that turning tail and running is a sign of failure... there are times when you aren't achieving a result and it's better to cut your losses and bail out.. that time certainly came for the Cornell (or was it Stamford?) guy. I wish him success and if he does have a good product it will work out. Gotta work on the tech-jargon though

author: tggzzz
author_rank: Super Contributor
timestamp: January 22, 2016, 11:32:56 pm
content: Quote from: SL4P on January 22, 2016, 10:36:25 pmSo, experience in Java then SAP. Sounds like a classic case of someone that may (or may not) be expert in their field, that makes a fool of themselves in another field.One famous case of that was Linus Pauling w.r.t. Vitamin C.

author: SL4P
author_rank: Super Contributor
timestamp: January 22, 2016, 11:35:47 pm
content: SAP, and Java. aren't they both solutions to problems that didn't really exist?But good marketing created a massive business opportunityBegin religious wars here:

author: EEVblog
author_rank: Unknown
timestamp: January 22, 2016, 11:48:39 pm
content: Quote from: Corporate666 on January 22, 2016, 11:28:24 pmPerhaps.But ultimately the idea was a highly derivative non-starter with at best niche appeal.That was obvious to anyone who knows anything about battery technology and it's use in products.And the forum topic title does say:Quote

author: tggzzz
author_rank: Super Contributor
timestamp: January 22, 2016, 11:49:48 pm
content: Quote from: SL4P on January 22, 2016, 11:35:47 pmAs I said, "sounds like a classic case of someone that may (or may not) be expert in their field, that makes a fool of themselves in another field".

author: Corporate666
author_rank: Unknown
timestamp: January 22, 2016, 11:59:58 pm
content: Quote from: EEVblog on January 22, 2016, 11:48:39 pmI didn't remember that he promoted it as revolutionary until RX8 pointed it out... I had a universal charger years ago that you just told it the cell type and it did the rest... so yeah, you're right... highly derivative. And people here are distrustful of business-types and as you know, engineers LOVE to point out (in minute detail) the problems with anyone else's ideas (thinking back to your video editing posts and how some people loved to dwell on the technicalities)

author: Simon
author_rank: Unknown
timestamp: January 23, 2016, 08:36:39 am
content: Quote from: rx8pilot on January 22, 2016, 06:40:33 pmYep, I have a job despite no qualifications and had the pleasure of pretty much saying WTF? when the graduate our supplier employed moaned that he was not getting enough resolution from a sensor but refused to use all 10 bits on the ADC and insisted he could only use 8......While qualifications are an excellent tool they don't teach you to be a problem solver. You either are one or you are not.

author: tggzzz
author_rank: Super Contributor
timestamp: January 23, 2016, 12:23:05 pm
content: Quote from: Simon on January 23, 2016, 08:36:39 amOh, I think you can be shown/taught how to be a problem solver, especially if you start before people are 11

author: Simon
author_rank: Unknown
timestamp: January 23, 2016, 12:45:38 pm
content: Quote from: tggzzz on January 23, 2016, 12:23:05 pmYou mean if you grow up in the right environment