J
John Larkin
Guest
On Fri, 28 Oct 2022 04:56:20 GMT, Jan Panteltje
<pNaonStpealmtje@yahoo.com> wrote:
High frequency AC, working against the capacitance of the drone to the
world. Some tuned circuit on each end.
>Maybe optical fiber for a high power laser? Never tried that, do have some optical fiber here..
Power over fiber is done, but it\'s expensive.
Tried Micro-coax? Really tiny stuff.
<pNaonStpealmtje@yahoo.com> wrote:
On a sunny day (Thu, 27 Oct 2022 09:33:12 -0700) it happened John Larkin
jlarkin@highlandSNIPMEtechnology.com> wrote in
99cllhp645bv1v1qsk0hb2nccifpbecgvn@4ax.com>:
I am struggling for every square mm of board area.
OTOH BAD things must happen for those parts not to be around anymore
Parts seem to be available more lately, especially direct from TI.
That was to keep my drone airborne via a thin coax carrying high voltage
transformed back to 7V at the drone:
http://panteltje.com/pub/drone_power_small_core_test_IMG_6114.JPG
http://panteltje.com/pub/h501s_drone_remote_power_flight_test_1_IMG_6274.JPG
http://panteltje.com/pub/h501s_drone_remote_power_test_ground_control_1_IMG_6276.JPG
I tested a 30 ga twisted pair of magnet wire. It failed at 1400 volts.
Wire-wrap wire must be 10 KV-ish. You\'d need a clever HV downconverter
to use really light wire.
How about a single wire to power a drone?
How would that work?
High frequency AC, working against the capacitance of the drone to the
world. Some tuned circuit on each end.
>Maybe optical fiber for a high power laser? Never tried that, do have some optical fiber here..
Power over fiber is done, but it\'s expensive.
These coaxes I use have teflon based insulation and are really good for some hundreds of volts,
very light at that,
The idea was to make as little RF as possible (am using about 100 kHz), put a small antenna on the drone
and send the amplified received RF down the same coax (many MHz), or even use the whole coax
as shortwave antenna, balloon would work too of course,
just playing and investigating
Tried Micro-coax? Really tiny stuff.