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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
I've added a couple of Smarts and started to measure idle power draw, that's easy. Interesting results indeed, many UPSes draw tens of watts while providing 0 on output.
And prick burreaucrats in EU are pushing stand-by power draw for ATX PSUs under 1 W. LOLLess 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
Those stepped wave UPS look nasty"Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
-David VanHornComment
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Re: Database of UPS inverter output waveforms @ HWI
The charging circuit is always running so it will always drawing current from the power line.
"And prick bureaucrats in EU are pushing stand-by power draw for ATX PSUs under 1 W. LOL" They are planning the same thing here too.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Database of UPS inverter output waveforms @ HWI
Charging is one thing, other thing is for line-interactive UPS the transformer is constantly getting power flowing through. And it has losses, high losses. The same for on-line UPS, double conversion also has 90-95 % overall efficiency.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 did a small update yesterday.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
Another small update, SU1000RMINET. Will be more different Smart-UPSes, but most of them in march (or later) I guess.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 managed to finish one more, 1400VA unit, so it is now also there. Just forgot to measure no-load consumption, that will be added later today.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
wow thats amazing great work ! i was surprized when i found out that a small Eaton unit the model 5115 500va thats runs of a single 12v battery had a sinewave output. im going to use it as an inverter for a small solar setup. thanks for collecting all that information !Comment
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Re: Database of UPS inverter output waveforms @ HWI
Not sure about 500VA, I've tested 1400VA version…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
yes the 500va version has a pure sinewave output i tested it with my Fluke ScopeMeter.Comment
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Re: Database of UPS inverter output waveforms @ HWI
Interesting.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
yes it is interesting that such a small unit has a pure sinewave output.Comment
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Re: Database of UPS inverter output waveforms @ HWI
Can you get a Tripp-lite G1000U? (Supposedly 1000va (120v) modified sine wave output) .. http://www.amazon.com/TrippLite-G100...ct_top?ie=UTF8
Would love to see how it does.... the unit I have has held up well (despite the three negative reviews on Amazon) but I do notice that the SMPS "wall wart" for my wireless router makes an odd buzzing sound when on UPS....
The unit I have is at least 7 years old and is only on it's second battery.Last edited by mxslick; 03-21-2016, 09:32 PM.Comment
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Re: Database of UPS inverter output waveforms @ HWI
No idea where, I am far from US…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
There was a minor update recently.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
There's a new Eaton measurement. There is a chance I'll add something more during the month, a slight
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
Two ancient units added plus I've measured idle power draw of few more which were already in the database.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
There's some new food. That ha-vel/Powerman UPS is similar crap to those plastic bricks of what I call Must Power origin, but it's some different OEM. There are also Eurocase branded units which most likely have the same platform on our market, the price is insane. It's like toilet paper, you are not even expected to replace the accumulators in it for the price. Just flush after use…
I just recently also learned 2000VA FSP Group models sell for as low as 4500 CZK, that's under 200 US bucks. And they now reached the absolute bottom of crappiness (or did they?) regarding accumulators - they started using FSP branded ones. I bet its similar quality to those Leoch craps I've seen recently. They leaked acid which eaten through the cabling so hard I had to replace most of it.
There will be an article about moddification of the SU700RMINET later. One day for sure
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
Got one new unit (BK500EI).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... -
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... -
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