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| 07:25.15 | viric | mth: ok, thank you! |
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| 12:47.02 | qi-bot | [commit] Adam Wang: fixed LP38511TJ-ADJ's GND to power input (master) http://qi-hw.com/p/kicad-libs/f36ddbf |
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| 13:01.05 | qi-bot | [commit] Adam Wang: changed JS28F256J3F105's BYTE as Input (master) http://qi-hw.com/p/kicad-libs/261b470 |
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| 13:09.09 | qi-bot | [commit] Adam Wang: changed MIC2550AYTS's VTRM to Power input (master) http://qi-hw.com/p/kicad-libs/2c9b9b4 |
| 13:14.39 | qi-bot | [commit] Adam Wang: changed testpin to Passive (master) http://qi-hw.com/p/kicad-libs/966affe |
| 13:22.43 | qi-bot | [commit] Adam Wang: changed MT46V32M16P's VREF to input. (master) http://qi-hw.com/p/kicad-libs/9cd6b11 |
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| 14:24.32 | LunaVorax | Hello everyone! |
| 14:24.56 | wolfspraul | hi :-) |
| 14:25.02 | wolfspraul | I'm almost calling it a day though... |
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| 17:22.25 | rjeffries | reading backlog. someone asked if I pimp qi-hardware in Raspberry Pi channel. A: NO. I was not promoting Raspberry Pi here, merely mentioning the release of board schematics (a Good Thing, IMO). |
| 17:24.29 | rjeffries | Not sure I understand the latent hostimity to a $35 computer that will run Linux. While not perfectly open, they have released datasheet on the SoC and now we see schematics. As best I can tell, they are not forcing people to purchase the board. |
| 17:25.49 | rjeffries | Why not let 1,000 flowers bloom? Raspberry Pi may well fail, if so, then it failed. It is not a threat to Ben Nanonote, rather it has very different target market. |
| 17:27.51 | rjeffries | Ben NN has been an interesting (ongoing experiment). I am not sure Raspberry Pi can not achive a similar level of open-ness as Ben NN. Both have published SoC datasheets. |
| 17:29.42 | rjeffries | The life forces of qi hardware have already shifted to Milkymist, which has promise, although it will never be a $35 system. Will Milkylist someday be converted to an ASIC? It could happen. |
| 17:30.33 | rjeffries | s/hostimity/hostility/ |
| 18:17.07 | DocScrutinizer | what damn latent hostility? |
| 18:22.50 | DocScrutinizer | wpwrak: (precharge) hah, well you want some proper current limiters in a number of places |
| 18:32.29 | DocScrutinizer | wpwrak: and I don't think you could place "the capacitor to the right side of switch" here |
| 18:33.12 | DocScrutinizer | anyway we had sth similar with Vsys on GTA02, no? ;-D |
| 18:38.44 | DocScrutinizer | (current limiter) a LDO with /ENA input is probably the better alternative to a switch with current limiter |
| 18:39.09 | DocScrutinizer | this way you got a decent decoupling from system VDD by design |
| 18:39.42 | DocScrutinizer | and a LDO probably is even cheaper than a switch with current limiter |
| 18:40.44 | DocScrutinizer | of course this requires some power rail providing Uout + Udrop_LDO |
| 18:42.24 | DocScrutinizer | running a commerical device without any on-board power stabilization is ... a bit unusual. As are good stabilized 5V wallwart PSU |
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| 20:07.52 | wpwrak | DocScrutinizer: in GTA02, we solved the Vsys problem just by placing a cap on the other side of the switch :) |
| 20:09.51 | wpwrak | an LDO may be a bit inefficient. but yes, it's a possiblity, too. |
| 20:10.37 | wpwrak | just the absence of inrush current limiting is generally a bad idea, as we keep seeing :) |
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| 20:15.20 | DocScrutinizer | yup |
| 20:15.53 | DocScrutinizer | unless you have no separate power domains and a proper power-up sequence |
| 20:16.43 | DocScrutinizer | one of the main reasons for power-up sequences is to avoid such effects |
| 20:18.12 | DocScrutinizer | basically you can take a boader approach than "limiting inrush": always consider both ends of the rope |
| 20:57.29 | wpwrak | DocScrutinizer: power-up sequences don't help in this case - it's all hot-plugged |
| 20:58.35 | wpwrak | or at least can be hot-plugged. same worst case :) |
| 21:49.25 | DocScrutinizer | sure |
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