General > General Technical Chat
Has anyone seen this - Voltserver: "Digital Electricity"
<< < (7/20) > >>
Cyberdragon:
For any device to work it needs to have continuous power. To get continuous power with their stupid pulse system you need big capacitor banks and send a lot of energy in the short bursts for the capacitors to keep enough charge. So now your sending an even larger amount of energy at one time down the wires, even if it's pulsed. So it will only kill you faster! It only takes 1A to kill! And any living body is just a resistance, it's scientifically impossible to tell if it's a person or a proper load across conductors. Unless they are using some sort of reflective impedance testing, in which case that's more needless :bullshit: over normal power. Even if it didn't kill you, it would be a horrible experience, not like the ZZZZZZZ of AC, more like BANG-BANG-BANG-BANG-BANG... The capacitors would just explode you into little pieces.

So the only way this would be safe is if it's below lethal limits, or uses some complex impedance testing (that runs continuously at that!). In which case, it would be trivial to just use sinewave AC or continuous DC, without all this over-complicated :bullshit: that's just going to create a ton of noise and wasted power! This is beyond Juicero level stupid, this is electrode-water-heater level stupid! :palm:
ogden:

--- Quote from: dunkemhigh on February 16, 2018, 11:53:57 pm ---The short pulse won't kill you, will it? They say that another doesn't get sent until the remote agrees that the prior one was safe, so if they have some way of detecting a problem that should solve that.

But... what, and how, can be detected?

--- End quote ---

You can rest assured that it can be detected. There are various methods. For example one which is used on AC mains:

https://en.wikipedia.org/wiki/Earth_leakage_circuit_breaker

p.s. I don't think this is freaking roadways - kind of project. They are addressing right thing. Industry is struggling with PoE power limits. Mobile industry badly needs such kind of power - for small cells. Also this tech allows 30% power supply cost reduction, but for example LED fixture is mainly power supply (besides LEDs obviously) :)
sibeen:
Just a pedantic point to be made, High Voltage (HV), as defined for regulatory purposes,  is an AC voltage above 1000 V RMS and a DC voltage above 1500 V. Anything at the levels being discussed is still low voltage (LV) for the purposes of electrical safety standards.
ogden:

--- Quote from: Cyberdragon on February 17, 2018, 12:21:35 am ---For any device to work it needs to have continuous power. To get continuous power with their stupid pulse system you need big capacitor banks and send a lot of energy in the short bursts for the capacitors to keep enough charge.

--- End quote ---

First look at the duty cycle of Voltserver, also look at waveforms in available documents:

https://patentimages.storage.googleapis.com/1d/0b/2c/9409ac5009fa0e/US20130103220A1-20130425-D00008.png

Does voltage drops to zero? Then please tell how 50/60Hz AC mains-powered devices manage to operate. They have voltage dips as well, they have even zero crossing :)


--- Quote ---This is beyond Juicero level stupid, this is electrode-water-heater level stupid! :palm:

--- End quote ---

You can be horribly wrong this time.

[edit] Corrected attachment.
PlainName:

--- Quote ---Just a pedantic point to be made, High Voltage (HV), as defined for regulatory purposes ...
--- End quote ---

Accepted. I knew that when using the term but couldn't quickly think of something more succinct to differentiate from, say, trivial 12V supplies. Mea culpa :)
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod