EEVBlog #1119 - Designing a 1kV Isolated Oscilloscope
Bart Schroder from Cleverscope talks about the challenges in designing the world's highest performance isolated oscilloscope.
Measurement demo on a 500V MOSFET H-Bridge and how to accurately probe it. Then a teardown and walk through of the design of the new CS448 1kV 4CH 200MHz 14bit isolated oscilloscope and the custom probes, power supplies and optical fibre interfaces they had to design to get this performance.
Teardown Tuesday
What's inside the world's worst and shittiest camcorder that costs a whopping $7.50 on Amazon?
The Global New Beginnings DV-136ZB 1.5" 3.1 MP Digital Video Camera
Mailbag: https://www.youtube.com/watch?v=NYWGXLuyH4M
Forum: http://www.eevblog.com/forum/blog/eevblog-595-world%27s-shittiest-camcorder-teardown/
Datasheet: http://www.icatchtek.com/files/SPCA1528A_PF_V1.pdf
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An update on the Quick 861DW, and probing its current consumption in comparison to the Atten 858D+ with the TTi I-Prober
https://kit.com/EEVblog/test-gear
Previous video: https://www.youtube.com/watch?v=N_yHkrVYrBE
Forum: http://www.eevblog.com/forum/blog/eevblog-1059-quick-861dw-hot-air-waveform-measurement/
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David explains PID controllers.
First part of a mini-series on control theory.
Forum: http://www.eevblog.com/forum/blog/eevacademy-6-pid-controllers-explained/
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Lots of teardown mix in today's Mailbag
And Windows 10 SBC action, along with Sony and the Russians.
Forum: http://www.eevblog.com/forum/blog/eevblog-917-mailbag/
SPOILERS:
Latte Panda single board computer
http://www.lattepanda.com/
Sony Pyxis IPS-30 GPS Teardown
Creative Zen music player teardown
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https://www.youtube.com/watch?v=KB-fUf3pc94
A big mailbag episode, getting through lots of backlog.
P.S. Yes I failed to twig to the cordless ESD strap. Will have to do a video debunking this!
Forum: http://www.eevblog.com/forum/blog/eevblog-759-mailbag/
SPOILERS:
NicaDrone EPM688 OpenGrab Electro Permanent Magnet
For UAV/drone payload pickup
http://nicadrone.com/index.php?id_product=59&controller=product
Fused USB to UART adapter (FTDI-Free)
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https://www.youtube.com/watch?v=ukT6riqyE-A
Dave tests out his live cam system again, and uses the Agilent B2900 SMU to show a plot of a diode inside the Apollo Saturn LVDC module.
This was just a test, a real video of this be follow.
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Dave & Phil try to calibrate and print something for the first time on their Makerbot Thing-O-Matic. But as Murphy always ensures, it turns into a troubleshooting bonanza, where much hair is lost, but much knowledge gained...
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https://www.youtube.com/watch?v=rdC7kTT-nN4
Bristol University have a neat new "zero power sensing" chip that takes energy harvested signals and switches an open drain output, the UB20M Voltage Detector.
But the marketing has gone too far when they demo a TV that supposedly has zero standby power. Dave busts this smoke and mirrors demo.
http://www.bristol.ac.uk/engineering/research/em/research/zero-standby-power/
Forum: http://www.eevblog.com/forum/blog/eevblog-971-zero-standby-power-tv-busted!/
Datasheet: http://www.bristol.ac.uk/media-library/sites/engineering/research/eem-group/zero-standby/UB20M_Datasheet_Rev.1.2.pdf
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https://www.youtube.com/watch?v=1vYJq4GeXPM