5+1 led vu-meter with AN6884

AN6884 is 5-dot led driver circuit with logarithmic scale (dB), who can be used in this configuration:

I made a quick test montage:

Also, I made AN6884 on test board movie:

I want t add extra chanel for pause or negative sound, so I change the schematic:

Because leds are controlled by current generator, I change a lot the schematic for control additional led thru usual optocoupler:

I made 5+1 LED VU-meter with AN6884 and PC817 movie to see how this vu-meter works:

For delay reaction of extra led, I put a electrolitic caapcitor between colector and emiter of optocoupler transistor:

You may also like...

12 Responses

  1. 33Jarrod says:

    I must say it was hard to find your blog in search results.

    You write interesting posts but you should rank your page higher in search
    engines. If you don’t know how to do it search on youtube: how to rank a website Marcel’s

  2. It’s amazing in favor of me to have a web site, which is good in favor of
    my know-how. thanks admin

  3. It’s in reality a great and useful piece of info. I’m happy that you shared this helpful info with us. Please keep us informed like this. Thanks for sharing.|

  4. I feel that is one of the most significant information for
    me. And i’m glad studying your article. But wanna commentary on few general things, The site style is perfect, the articles is in reality excellent
    : D. Just right activity, cheers

  5. pron best says:

    wow, awesome article.Much thanks again. Keep writing.

  6. I’m no longer certain where you’re getting your information, but good topic. I needs to spend some time studying much more or figuring out more. Thanks for fantastic info I was looking for this information for my mission.

  7. Jesse Grillo says:

    You appear to know a lot about this. Your site has a kind of engergy surrounding it.

  8. Would you be enthusiastic about exchanging links?

  9. Major thankies for the post. Really Cool.

  10. Johnd920 says:

    Very informative article post.Really looking forward to read more. Fantastic. kggfeagbefde

  11. Smitha978 says:

    Hello, i think that i saw you visited my blog thus i got here to return the choose.I am trying to to find issues to enhance my site!I guess its adequate to use a few of your ideas!! gaafceaaceegkkaf

Leave a Reply

Your email address will not be published. Required fields are marked *