File:APC Back-UPS 550 Uninterruptible Power Supply Output Waveform.jpg
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![File:APC Back-UPS 550 Uninterruptible Power Supply Output Waveform.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/APC_Back-UPS_550_Uninterruptible_Power_Supply_Output_Waveform.jpg/800px-APC_Back-UPS_550_Uninterruptible_Power_Supply_Output_Waveform.jpg?20200130194528)
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Structured data
Captions
Captions
UPS output waveform (Yellow) compared to normal 120 VAC 60 Hz power waveform (Violet)
Summary
[edit]DescriptionAPC Back-UPS 550 Uninterruptible Power Supply Output Waveform.jpg |
English: This image shows the non-sinusoidal nature of the AC power provided by some inexpensive consumer grade uninterruptible power supplies (in this case APC model "Back-UPS 550"). The UPS output is shown in yellow compared with a standard 120 VAC 60 Hz single phase waveform. This are actual waveforms measured by a dual trace digital oscilloscope. |
Date | |
Source | Own work |
Author | Timothy Quill |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:45, 30 January 2020 | ![]() | 1,600 × 960 (472 KB) | Doodybutch (talk | contribs) | User created page with UploadWizard |
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Camera manufacturer | Panasonic |
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Camera model | DC-ZS70 |
Exposure time | 1/80 sec (0.0125) |
F-number | f/4.9 |
ISO speed rating | 1,000 |
Date and time of data generation | 11:58, 28 January 2020 |
Lens focal length | 16.1 mm |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | PhotoScape |
File change date and time | 14:07, 28 January 2020 |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 11:58, 28 January 2020 |
APEX shutter speed | 6.321928 |
APEX aperture | 4.585563 |
APEX exposure bias | −2.66 |
Maximum land aperture | 4.5859375 APEX (f/4.9) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 272 |
DateTimeDigitized subseconds | 272 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 90 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Lens used | N/A |
Image width | 1,600 px |
Image height | 960 px |
Date metadata was last modified | 09:07, 28 January 2020 |
Unique ID of original document | 9AA8202A866965235D4075801DB1F094 |
IIM version | 4 |
Structured data
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28 January 2020
0.0125 second
4.9
16.1 millimetre
1,000
image/jpeg
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