Comments on: IoT Mailbox: Solar Battery Chargers & System Power Supplies https://iotexpert.com/iot-mailbox-solar-battery-chargers-system-power-supplies/ Engineering for the Internet of Things Mon, 29 Apr 2019 14:14:10 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Alan Hawse https://iotexpert.com/iot-mailbox-solar-battery-chargers-system-power-supplies/#comment-13134 Mon, 29 Apr 2019 14:14:10 +0000 https://iotexpert.com/?p=5796#comment-13134 In reply to Sven.

Well… it is going slowly as I got distracted by my new job… then I fell down the display rabbit hole… then tripped into the filesystem rabbit hole… and finally am stuck with eink.

]]> By: Sven https://iotexpert.com/iot-mailbox-solar-battery-chargers-system-power-supplies/#comment-13062 Mon, 22 Apr 2019 00:08:38 +0000 https://iotexpert.com/?p=5796#comment-13062 I am in exactly that same rabbit hole right now. How is your testing going?
Is it intentional in your drawing, that there is an arrow pointing TOWARDS the solar panel?

]]> By: Alan Hawse https://iotexpert.com/iot-mailbox-solar-battery-chargers-system-power-supplies/#comment-7195 Thu, 06 Sep 2018 15:36:44 +0000 https://iotexpert.com/?p=5796#comment-7195 In reply to Zaid Pirwani.

The LTC3331 which I am mostly done with can do 5V from the LiPO… meaning the chip has a buck boost that drives Vout.

]]> By: Zaid Pirwani https://iotexpert.com/iot-mailbox-solar-battery-chargers-system-power-supplies/#comment-7189 Tue, 04 Sep 2018 19:13:44 +0000 https://iotexpert.com/?p=5796#comment-7189 wow, thiss is something I have had quite an interest in since a long time, though I also want my output to have 5V capability.

I think that is not a very unusual ask for such a circuit.

powered by Solar, or battery or DC input – charge the battery 3.3V Lipo/Li-Ion – the battery supplies power to generate 3.3V and 5V with good power rating.

having hot-swap of any of the sources will be a huge plus, but I would keep that as a very last feature.

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