How I Designed a Simple Video Sync Separator (EP 47)
Вставка
- Опубліковано 15 жов 2024
- Doctor Plague shows how he designed a sync separator circuit, but he doesn't stop there. He also attempts to demonstrate his circuit by turning an old analog oscilloscope into a CRT video display. Will he succeed?
See if you can find J.S. Bach before the end of the video! Be sure to watch to the end to see if you were correct!
Please check out "The Composite TV Signal, Part 2! Vertical Blanking!" to learn more:
• The Composite TV Signa...
ERRATA: When breadboarding the Positive Clamper circuit, the supertitle mentioned "1Meg resistor" - this should've been "10Meg resistor".
Category: Electronics, Technical, DIY
Please subscribe, and peck at the bell to be notified of new videos as they become available.
This was a very helpful video regarding video sync separation.
Glad it was helpful! Thanks for watching!
This video is a gift from god for a group of very lucky students
Thank you for the kind comment!
this is the most helpful series on this topic! thank you so much
You're welcome. Thanks for the comment!
The DVD player uses a current-mode DAC to output the video signal. Very clever design, as it will guarantee a clear video signal at the TV's input, no matter what the cable's impedance is !
Great design. Thanks for the video.
You're welcome. Thanks for the comment!
I'm very impressed man. You gave to me the Will of study math and electronics, this is fantastic.
Thanks, and good luck with your studies!
I'm re-viewing this series, what a fun! But it leads to a question: can you make a just as nice and clear video on HDMI signals?
That you for this great, humorful, educational content. 🙏🙏
You are Bob Peace from National, who is still alive!
The result of this was great!
Thanks Dr Plague.
I’m not really interested in composite video, but I learn a lot with the circuit designs that make it works.
Very cool ideia to use the scope as a CRT screen using X/Y and L inputs.
Please continue making this kind a videos, this analog circuits are nice, not like the new rubbish digital things. 😅
Great to hear. Thank you!
Fantastic stuff!
Found your channel from someone's recommendation-comment on Big Clive channel. Love this video, thanks. I'm a digital engineer. Maybe if I watch enough of your videos I won't have to keep asking analogue engineers noob questions :-)
Thank you for checking out the channel, and thanks for the comment!
I only watched composite video series yet, and they were phenomenal! Simplicity ant depth combined - this is true teaching! How did you became so good? Are you a professor in an university? Can I use this circuit to take a composite video signal from older raspberry pi models? To continue these series: how to make composite video signal by using AVR micro controller? How about other types of video signals: s-video, RGBSync? How to make amateur HAM TV station? And to conclude reversed video bread board assembly is pure magic. I am off to binge watch the rest of your channel and subscribed to future content.
Impressive stuff!
Thanks!
Very cool. been wanting to build something like this for a while. do you mind sharing the schematic or is it in the video?
Amazing video
Thanks for watching!
Awesome!
Thank you! I appreciate the kind comment!
25:20 Doctor you could use a Constant Current Source on the capacitor. Ha, I see you added the circuit later and it does impove the image!
Very cool!
Thank you!
pls continue doing videos on analog tv circuits..
I do plan on making future videos in which I develop some video circuits. I just have some other videos that I'm working on first - they will end up tying in. There is an order to this madness! Thank you!
Awesome
Thanks!
what about LCD tvs I think it will be nice topic with your method of explanation...
Thanks for the suggestion!
Very impressive! I have been breadboarding simple designs of my own since the 70s and have designed many circuits. Showing this math was a must have. I have a question about HDMI to A/V conversion. Do you know of a chip that was designed for this purpose? Currently I am using a video capture card, ffprobe and ffmpeg to detect "Loss of Video" and "Loss of Audio" using software (Raspberry PI, Python). I would like to be able to convert HDMI to analog video & audio. I can then use the luminance filter in this video to detect a black screen by giving the last op amp a little amplification and a diode to convert to DC. The result would be 0VDC when black screen and 1.2VDC when video is present. I just need to figure out how to convert the digital video and audio from an HDMI plug to analog. Can you point me to either an existing chip or preferably a method using old through hole ICs from the 70s - 90s that are more readily available? Would this require a microprocessor?
I'm sorry, but I'm not familiar with such an IC to convert HDMI to analog. I would think such an IC would exist, but I'm just not familiar with any. Maybe another viewer can chime in if anyone knows of one. Thanks for watching!
look up the mini series of converters. they have one that does HDMI to AV.