Re: Database of UPS inverter output waveforms @ HWI
Got three more APC units (BK650EI, SU620INET, SMT750RMI2U).
Got three more APC units (BK650EI, SU620INET, SMT750RMI2U).
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Less jewellery, more gold into electrotech industry!
Half of the computer problems is caused by bad contacts 
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Re: Database of UPS inverter output waveforms @ HWI
And one more, the SUA2200I.Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
Nice!
I never EVER look at the output of any inverter, unless it bears a Pure Sine Wave claim and I'm running inductive loads, for the same reasons that I don't routinely examine septic tank efficiency. Cuz eww.
If you're looking for a decent UPS: my UPS is a Xantrex PROsine 2500 with 0/1 cables running through the wall to an outdoor steel cabinet full of Walmart truck batteries. It outputs a sine wave (if it's isolated during measurement) even at its safety trip point of 118VAC 29+ amps which is substantially more than its rated 2500W. It can (and has) run my PC, monitor, Asterisk server, network, and rework station, for 4 days straight. It didn't turn on its cooling fans until power was back and it had to recharge all those batteries. Those Xantrex guys sell the good stuff.
I also just got a "UNGE" sine wave inverter from the wee folk in Shenzhen. $130 means I didn't expect it to really produce 600W sine waves. I was wrong. This thing outperforms its specs by a bit less than 15% (I pushed it until it just started to clip, then backed off a little). It did that for two hours w/o overheating. It uses squirrely parts, and I'll be replacing those in a few years, but this might be a Xantrex Killer. Add two $20 Advance Auto economy car batteries and I get a 600W sine wave UPS that can run for hours for only $170.When testing electrolytic catzappers, you should always wear an OSHA approved safety squint.
- Friedrich NietzscheComment
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Re: Database of UPS inverter output waveforms @ HWI
OMG, not this crap again?! I don't want no car accumulator BS in my thread. Car accumulator belongs to car.Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
why?Comment
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Re: Database of UPS inverter output waveforms @ HWI
Cause, well…car? ᗡ-:Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
At least get trolling accumulators...
(hmm, was this supposed to be a double entendre post?)Comment
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Re: Database of UPS inverter output waveforms @ HWI
I do that since 2011 without any problems.Comment
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Re: Database of UPS inverter output waveforms @ HWI
Added the BR1200G.Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
New garbage Eaton, 5E1500IUSB.Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
APC SUA1000I's been finally added
Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
Also the good ol' SU1400INET.Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
Ancient BK400EC added. I've also started measuring inverter efficiency (at least roughly for some general idea) under full load, where possible, this has also been added for the BK650EI.Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
I've added one more Eaton unit (what a garbage!) and couple APC efficiency measurements.Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
More measurements of different values of units already in the DB have been added over the year, and also the ol' APC Smart-UPS 900.Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
HP T750 G2, Eurocase EA620 and Riello NDG 200 measurements have been added. Hopefully none of that will get lost with more migrations etc. as the Smart-UPS text got :-oLess jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Re: Database of UPS inverter output waveforms @ HWI
Couple more units added lately, including pretty shameful CyberPower BU600E.Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
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Good morning everyone,
I'm trying to repair an onkyo ht-r390 that has no sound output, despite the volume being at maximum, the rest seems to work; the video output signal (coming from an hdmi input) is present, but the audio is absent. Similar situation if I send an audio signal from any input I have no output.
The firmware reported is the following:
M:1.00/11107BLP
D:?.??/????????
O:1.00/11107AL
The DSP firmware given the question marks seems corrupt.
On the BCHDM-0678 - 25140678 - QPWBCHDM0678A0 board the chip that usually seems...05-11-2025, 02:59 AM -
I have bought this Zener Diode for this project what size and wattage resistor value do I need to use to get near 50 watt output
I bought this from an eBay seller but unfortunately they only had one
I bought three from Vetco Electronics these are Sylvania ECG5185A 9.1@10w A to Stud what size and watt resistor do I need to use to get near 10 watt output
I bought three of from them to also make battery packs with this output power limit in mind
I want to use this battery pack and turn it into a 9.1 output battery pack output to eliminate using 9 volt battery... -
Greetings, I have a Sharp LC-60LE633U when powered up only the V light comes on. I have checked the LED strips and they all light up. When the LED's are plugged into the PS board I get an output voltage of 74v DC. If I unplug the LED's the output voltage on the PS is 184v DC. Does this indicate a weak PS?
Thanks... -
Looks like I may need a little help from the PSU experts (or anyone really!
) I have a Corsair CX750M (Model 75-002019) that I picked up for free about 4 years ago. This is the PSU:
So here’s what’s strange about this one: it appears to work normally (normal output voltages) and any PC is stable with it. However, after a while (typically 10-20 minutes, but time can vary depending on the load), there is a sweetish smell of burned magnet wire insulation emanating from the PSU. Upon opening the PSU after this happened (many times), I was able to confirm... -
Greetings, I have a Sharp LC-60LE633U when powered up only the V light comes on. I have checked the LED strips and they all light up. When the LED's are plugged into the PS board I get an output voltage of 74v DC. If I unplug the LED's the output voltage on the PS is 184v DC. Does this indicate a weak PS?
Thanks
Comment