binary voltage multiplier

Jul 26, 2022 Last reply: 3 years ago 40 Replies

torsdag den 28. juli 2022 kl. 17.38.47 UTC+2 skrev snipped-for-privacy@highlandsniptechnology.com:

The 65W is at 20V the USB-C is "Power Delivery", so it starts at as normal USB 5V/900mA and then as requested switches to 5,9,12,15 or 20V little over 3A

torsdag den 28. juli 2022 kl. 17.36.08 UTC+2 skrev snipped-for-privacy@highlandsniptechnology.com:

the big Meanwell comes with an 8 pin minifit-jr or 4 pin XLR, both are locking

I need to look into that. I'm thinking about a product line of little blue box signal conditioners, aerospace things, and a USB power connector would be cool. But I think some negotiation has to be done to get more than the minimum 5 watts. And maybe some older PCs and laptops can't do more.

There's probably a good book somewhere.

[...]

Amazon sells a 5V 12A USB charger for CDN$26.99:

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I don't need that much for my desk lamp, so I got a 32W version for CDN$16.99:

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So they do exist.

However, USB-C cannot take the current:

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torsdag den 28. juli 2022 kl. 20.23.24 UTC+2 skrev John Larkin:

yes you need a pile of software* or a dedicated chip like these:

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it of course ties up the USB, but that doesn't really matter because so far I haven't seen any PCs or laptops that supports more that the normal 5V output, only seen chargers and powerbanks that does that

Ugly. They insisted on black anodize. Highland Blue would have been much better.

The LCD is an eval board. We couldn't get the lcd or the driver chips, but lots of eval boards are available.

XLRs are great. I never understood why a microphone connector has, like, 10 amp pins. What SPL makes 10 amps?

In the case of stage gear, it's not the amps, it's the newtons that matter. Specifically of a drunk rock-star tripping over a cable without interrupting whatever horrendous din they're making at the time.

I think they are beer-proof too.

We're going in the DKNY direction ourselves--machined brass and black powder-coated steel.

Cheers

Phil Hobbs

Am 29.07.22 um 14:09 schrieb Phil Hobbs:

Coating with black powder?

Gerhard

>

Note the hyphen. ;)

However, we do thing they're the bomb.

Cheers

Phil Hobbs

fredag den 29. juli 2022 kl. 04.21.36 UTC+2 skrev snipped-for-privacy@highlandsniptechnology.com:

ye as long as it is the Neutrik style, easy to assemble excellent strain relief, nothing like the old Cannon/Switchcraft stuff with all sorts of tiny screws

it needs to be musician and roadie proof. It has also been used for connecting spekers

Now replaced with Speakon with is up to 8 pins, 40A rated, and the pins are inside where you can't touch them

Here's the first unit of a new product. The front panel is powder coated on the front and all edges, but still conductive bare aluminum on its back side.

Protocase made us 10 of these in something like 5 days. They do beautiful work.

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snipped-for-privacy@fonz.dk wrote: ==================== >

** Neutrik "XLRs" are fragile compared to Cannon types, the plastic screw up strain relief works loose and will break if trodden on.
** The Switchraft head locking screw is captured and the whole plug is damn near unbreakable. It was specially designed for use with microphones with a smooth, streamlined shape.

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While Neutrik Speakons are fine, the many clones are not and fail to connect after a short period of use. The similar "PowerCons" are flat out dangerous.

..... Phil

I prefer the Neutrik and I haven't seen anyone use the Cannon style for 30 years

I'm taking about this nonsense

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snipped-for-privacy@fonz.dk wrote: ====================

** Good for YOU - BTW, it proves nothing.
** Hate to be the one to tell ya this - but the are not made by "Cannon". Merely cheap XLR style clones made in Asia.

FYI:

Originals had slot headed screws on the saddle and the name Cannon embossed on ( black or grey) inserts. Not only outlast the mics they were bought for, but often enough the the owners too.

..... Phil

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In the late 1960s to early 1970s, I was a sound man and electrician in various stage productions. All the XLRs I ever saw (and installed) were made by Switchcraft, and these were just bulletproof.

They were what one used for low-impedance microphone cables.

I've at least looked at the Neutrik XLRs, but I've never used or installed them.

Dangerous in what sense? (I have no personal experience here.).

Joe Gwinn

Joe Gwinn wrote: ==============

** All the ones I saw back then were " Cannon " made here in Australia. 3 pin EXP and XLR types, plus a few LNEs for AC power. Switchcraft were a rare sight or came packed with Shure SM xx mics.
** They are NOT safety approved for use outside of a professional installation situation. Three reasons exist:
  1. Not safe for disconnection while under load - may arc and burn. 2. Will come apart when twisted anti-clockwise exposing live parts. 3. So similar to a Speakon connector folk try to use them with one, forcing it in making a lethal connection.

Should not be supplied to the public, but are seen on items that are sold to anyone - ie compact self powered speakers.

...... Phil

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