This drone can charge straight from the power lines. A prototype built by students in Denmark. https://www.facebook.com/reel/2827561450966396/?mibextid=9drbnH
Archive for the ‘Transformers’ Category:
2025-06-21 Making AC Voltage Boost Transformer To Correct Overloaded Grid
Watch the last few minutes of this 18 min. YouTube video to see the advertising on the box that tells what it does. This is really tragic. This multiple tap voltage boost transformer has to be used because the Indian electric grid is so overloaded that they can’t depend on the AC voltage to be
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2024-06-06 Investment In Clean Energy Likely To Be Double Figure For Fossil Fuels, IEA Says
Quote: “”Low-carbon electricity investment driven by solar projects but oil and gas spending still too high to meet climate goals”” The IEA predicts investment in clean energy will reach $2 Trillion in 2024. Quote: “”The warning comes days after a separate IEA report revealed that the world is off track to meet the goal of
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2024-06-04 Gallium Nitride MOSFETs To Revolutionize Power Electronics
Gallium nitride power electronics will replace silicon and will make laptop power adapters smaller than a golf ball and will save major amounts of electricity. GaN devices will waste a lot less power, which will enable power electronics equipment to be made smaller and more efficient. Quote: “”GaN-based power electronics, on the other hand, could
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2024-04-14 Drone Recharges From HV AC line
Wow! It just clips onto the HV cable and recharges while it’s hanging there. Presumably the drone has an inductive pickup coil that’s up against the conductor that’s carrying hundreds of amps. I bet Joe Tegtmeyer would like to have one of these! https://www.facebook.com/interestingengineering/videos/1123581112297321/?mibextid=NnVzG8 https://www.facebook.com/reel/415716777728231?mibextid=9drbnH&s=yWDuG2&fs=e
2024-03-12 Keeping The Grid In Balance
At the end he said “… keeping the grid in balance with millions of tons of spinning inertia.” Well, this is now being simulated by the electronics in the battery energy storage systems and other electronics. It’s called VMM – virtual machine mode. Soon, there will be very few thermal power plants left after all
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2020-02-14 Zenith Royal 400 S/N Z551549 Replaced Capacitors, Driver Transformer
Zenith Royal 400 s/n Z551549 I soldered broken orange wire to battery holder. Replaced all four electrolytic capacitors. Silent speaker and nothing from earphone jack. I checked the voltage at the collector of the driver transistor, it was zero. One pin of the driver transformer primary measures 5.8 V, the other pin measured 0. Checked,
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2018-04-03 Transformers in Series Parallel
For FB group Building Transistor Radios This is the idea that I had about using more than one transformer to connect their windings in series or parallel to get a higher impedance and a higher stepdown ratio. My idea was to be applied to the Bogen T725 line matching transformer, but it could be applied
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2017-06-25 Mini Audio Transformer From Goldmine Electronics
I bought several of these miniature audio transformers from Electronic Goldmine. They are encapsulated so I can’t see anything, windings, core or materials. There are 5 pins, 2 on one side and 3 on the other, but the center pin measured open, so it’s apparently there to make sure the transformer is inserted the right way. The
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