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niconiconi

Hopefully I won't accidentally kill myself later in the dielectric withstand voltage test by the 3000 volts HiPot tester. LIke many on the Fediverse, ihatebeinga.live is a thing, but a HiPot tester is just a terrible way to die. #electronics

DANGER DO NOT TOUCH Not only will this kill you, it will hurt the whole time you are dying.
31 Dec 2021 at 15:56 | Open on cybre.space
2 comments
niconiconi replied to niconiconi

My USB 2.0 isolation board is working. The Texas Instruments chip ISOUSB211 works as advertised, it really is the first USB 2.0 high-speed (480 Mbps) galvanic isolation chip on the open market. I'll release all the design files tomorrow. #electronics #usb

USB isolator board. The board is symmetrically laid out, left is the host side, right is the device side, with an isolation barrier in between. Across the barrier is a Texas Instruments ISOUSB211 isolated USB repeater chip, and also a DCDC power converter module.
Benchmark result using a USB flash drive. The read speed is 45 MiB/s, or 360 Mbps, this speed implies the isolator is working properly in high-speed USB mode.
6 Jan 2022 at 15:22 | Open on cybre.space
niconiconi replied to niconiconi

TI ISOUSB211 development board design is now public. This TI chip is the first ASIC capable of doing USB 2.0 High-Speed (480 Mbps, not 12 Mbps) galvanic isolation on the open market. As always, #Lain must be loved. notabug.org/niconiconi/isousb2 #electronics #usb

USB isolator board. The board is symmetrically laid out, left is the host side, right is the device side, with an isolation barrier in between. Across the barrier is a Texas Instruments ISOUSB211 isolated USB repeater chip, and also a DCDC power converter module.
Back side of the PCB, there are only a few resistors and capacitors on this side. On the silkscreen there's a sketch image of Lain, with the words "Let's all love Lain"
7 Jan 2022 at 7:40 | Open on cybre.space
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