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Forum: Electronics, Lighting, & Gadgets

01-24-14, 04:50 PM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

If there's a rectifier in the circuit, a passive...

If there's a rectifier in the circuit, a passive one, it will have an on-state voltage drop and hence will dissippate power (rough estimate 0.5 amp * 1 volt *50% duty cycle = 0.25 watts). If the...

Forum: Electronics, Lighting, & Gadgets

01-17-14, 11:26 AM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

You can say unequivocally that it is more...

You can say unequivocally that it is more effective (a subjective user-centered assessment) than your SON/Cyo, and you made that case very clearly in your excellent review. You can't say it's more...

Forum: Electronics, Lighting, & Gadgets

01-17-14, 11:22 AM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

This was one of my thoughts, too, earlier in this...

This was one of my thoughts, too, earlier in this discussion. But while that loss of energy transfer is a down check to efficiency, it might be compensated by high intensity magnetic fields, lack of...

Forum: Electronics, Lighting, & Gadgets

01-17-14, 11:13 AM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

Excellent point, that the lack of mechanical...

Excellent point, that the lack of mechanical friction sources should have a pretty big effect on efficiency, comparing to dynes in tests like the one Heine printed relatively recently. If the drag...

Forum: Electronics, Lighting, & Gadgets

01-17-14, 10:52 AM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

dhalbrook: Ok, I haven't yet taken a good look at...

dhalbrook: Ok, I haven't yet taken a good look at Dirk's new Kickstarter page, but I am an EE and I'll try to assess what he says from that point of view. If you also gain some more insight from...

Forum: Electronics, Lighting, & Gadgets

01-10-14, 07:12 AM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

How well is the Magnic sealed? It contains an...

How well is the Magnic sealed? It contains an electronic circuit board, so water ingress could damage circuit boards unless they are waterproofed. And in mass production it's difficult to conformal...

Forum: Electronics, Lighting, & Gadgets

01-10-14, 12:15 AM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

There will always be drag, but will it always be...

There will always be drag, but will it always be perceptible? Hub dynamos and bottles have cogging as the poles interact with the permanent magnets. This causes noticeable vibration that is...

Forum: Electronics, Lighting, & Gadgets

01-08-14, 11:11 PM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

Yes, that question IS the 800 # gorilla!

Yes, that question IS the 800 # gorilla!

Forum: Electronics, Lighting, & Gadgets

01-08-14, 11:10 PM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

Fine, so the first hypothesis is wrong, because...

Fine, so the first hypothesis is wrong, because your test with the lamp hand-held disproves it. Good, that's progress.

If you know something concrete and detailed about how it works, please...

Forum: Electronics, Lighting, & Gadgets

01-08-14, 08:47 PM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

I f I could tell you something concrete, I would...

I f I could tell you something concrete, I would be!

Forum: Electronics, Lighting, & Gadgets

01-08-14, 08:35 PM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

If you find out, tell us.

If you find out, tell us.

Forum: Electronics, Lighting, & Gadgets

01-08-14, 06:53 PM

Replies: 118

Kickstarter Light technology

Views: 9,990

Posted By Road Fan

I agree that it is an amazing invention. Spoke...

I agree that it is an amazing invention. Spoke current is an interesting thought, that there is an electric circuit that involves the spokes. So a potential is created, current flows through the...

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