2022年5月20日 · DIY DC UPS for router « on: May 20, 2022, 07:19:06 pm » I've been trying to design an uninterruptable power supply for a router that is supplied by a 12V dc power brick.

2012年10月19日 · Re: Raspberry Pi server with diy UPS « Reply #22 on: March 04, 2015, 04:02:57 am » Hi Daniel; I see that this thread is a little dated but your circuit is very nice and I'm interested in a backup for my RPI Sprinkler Controller.

2021年10月20日 · Re: diy 12V ups questions « Reply #5 on: October 25, 2021, 04:15:36 pm » I've had a stupid charger/powersupply adjusted to 13 V connected to a small 12V lead battery for 6 years now, driving router, wifi access point, network switch, modem and a raspberry pi (using a 12V to 5V DC converter) for 6 years.

2020年8月5日 · Yeah, power the DUT from the UPS, just disconnect the internal ground going to the output socket to make it fully isolated. In my case I installed a 24V 20A switching power supply inside the UPS. I got it for free, as well as the UPS. They were both headed for the scrapyard. It supplies fairly well regulated voltage for the UPS to use.

2024年6月20日 · What I have now is an "DIY" UPS I have put together with external batteries, an RV charger/converter, and an inverter. This thread is about me trying to get rid of the inverter. I chose SLA instead of LiFePO4 because they're lower cost and a better fit for this exact use case. They're heavier, but they'll sit on a shelf their entire life.

2024年1月13日 · The immediate use case for this is to replace an RV-style converter charger I have as part of a cobbled together DIY UPS. It's a double conversion architecture, so the converter-charger (and my new device), will first charge the batteries and then deliver stay at a "float" charge while delivering up to 20A at 24VDC that floats the battery bank ...

2020年3月27日 · Hi I am using a 3s BMS board for my battery pack to make it use as a DIY UPS from my modem. So I need to plug in the charger adapter to the battery pack and battery pack output is connected to modem always.

2020年3月25日 · Just want to spread the word: We released another Arduino based PLC DIY kit, with 8 inputs and 10 outputs, analog/digital, with RTC on board, powered by an Arduino NANO V3. The module size is 100 x 80 mm, and it requires 12V DC power supply and a CR2032 backup battery for the RTC.

2022年1月17日 · One option is getting a bunch of kanthal/nichrome heater wire (People use it to make DIY kilns), string it back and forth between two insulating rods to make a large heating element and use a large fan to push lots of air trough it. Basically a electric space heater but scaled up x10. This is mostly how real load banks work.

2018年2月26日 · And a 2 kVA output UPS at 70% efficiency is dumping 850 watts of heat out all day long if it's at full load. On voltage: 48V is the absolute minimum. I had a 5 kVA UPS that ran 240V DC (20x 12V 7Ah batteries), with a big-ass boost converter.