Search results

  1. W

    Why is so hard to mimic the Knight Rider scanner Effect?

    Hey AN920 nice circuit, thank you for your reply. But come on, don't do this!!! Let me wrap my hands and hold my self and use my mantra "I dont want to build this!, I dont want to build this!" ;D ;D ;D Let me ask you something, there is a way to make your circuit work with 8 led's so it will...
  2. W

    Why is so hard to mimic the Knight Rider scanner Effect?

    Ok, when i get some free time i will try to mess up a bit more with this project. Thank you Audioguru! By the way, you can move the file to the project section for others to build their own board of the project, inside there is a schematic, board design ready to print and the Eagle Project.
  3. W

    Why is so hard to mimic the Knight Rider scanner Effect?

    But the effect is only the fade out correct?
  4. W

    Why is so hard to mimic the Knight Rider scanner Effect?

    Hello Audioguru, long time no see! Yep, i know that, but sometimes you have that feeling that "it might work out". I've done long time ago the basic CD4017/NE555 with some power transistors and light bulbs (i said bulbs not bubs ;D ) used in brake light, and it work like you said, when the...
  5. W

    Why is so hard to mimic the Knight Rider scanner Effect?

    Hello All! I've build this "Nite Rider Lights" http://www.electronics-lab.com/projects/automotive/011/index.html http://www.electronics-lab.com/forum/index.php?topic=1427.0 Made a few changes in the project to meet my needs, R3 100R, R2 1K, C1 10uF. By the way, i dont know why i get dragged...
  6. W

    Opamp for video component buffer

    Good to hear (read) that! Thanks!
  7. W

    Opamp for video component buffer

    I see signal loss at input 1-2 and 3-4 because it has to pass by 3 CD4053 (150R*3=450R), the input 5-6 has only a total resistence of 300, so i fear that this could mess up with the signal even if it is buffered at the output, like diference in signal at input 1-2/3-4 and less at input 5-6, but...
  8. W

    Opamp for video component buffer

    Hi audioguru, No, no, i will not work with RGB just component video (Y'PbPr). My monitor can handle component video (Y'PbPr) and 1080i signals. This structure is just the basic connection to work with video, the audio block still missing in there. But before i build the design to the audio...
  9. W

    Opamp for video component buffer

    So here is the basic structure (is not ready yet), so this could be more easy to explain. The first output of CD4017 will have a inverter 74xx to make sure that all CD4053 are reseted (LOW), so all CD4053 is in X0/Y0/Z0 position, this will be channel 1 Using a push button to change state of...
  10. W

    Opamp for video component buffer

    Hi audioguru, The idea to use the CD4017 is to use this logic sequence to trigger different CD4053 on the way, for now is just a concept. Since i will use 6 inputs: 1) The first block will switch the signals( inputs 1-2, 3-4 and 5-6). 2) Second block will work with the logic of the signals...
  11. W

    Opamp for video component buffer

    Correcting my previous post, the better solution will be the OPA3692 and not OPA3691 http://focus.ti.com/lit/ds/symlink/opa3692.pdf It has a fixed gain of +2. ;D
  12. W

    Opamp for video component buffer

    So i think i will choose the OPA3691: http://focus.ti.com/lit/ds/symlink/opa3691.pdf And like you said, i will use a 75R grounded at the input and a 75R as signal output. One more question, can i make the CD4053 change the internal swich with a CD4017, so i could use a single button to swith...
  13. W

    Opamp for video component buffer

    Ok, thanks.
  14. W

    Opamp for video component buffer

    Hi audioguru, I was looking around but there is so many options like AD8045/AD8074/OPA693 and the list go on. So i just need to know what is the basic requirement before i can choose to use this one or that one. Now i know about the frequency, for video, high frequency is better? Or with what...
  15. W

    Opamp for video component buffer

    Hello there! I wanto to build a video component selector to use with my monitor (SyncMaster 730MP), my idea is to use simple components basically CD4053 / NE555 / OPAMP (buffer). So, with opamp should i use or to be more specific what should be my consideration before i select he opamp. I have...
  16. W

    Doubling 7805 regulator current is effective?

    Thank you very much Ante! ;D
  17. W

    Doubling 7805 regulator current is effective?

    Sorry to keep you waiting. I could not find the MAX724, only the LT1074CT and LT1074HVCT.
  18. W

    Doubling 7805 regulator current is effective?

    Hello Ante! Don't know, let me check.
  19. W

    Doubling 7805 regulator current is effective?

    Hello Guys! Thank you for the sugestions, but i think is too dangerous to let a kid handle this. So, i installed a small DC/AC converter (12VDC > 120VAC) inside the dashboard and he can use his original PSP AC Adaptor, now he can charge the PSP battery and play, also is much more safe for...
  20. W

    Doubling 7805 regulator current is effective?

    Suggestions?
Top