Announcement

Collapse
No announcement yet.

variable pulse width and period

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • variable pulse width and period

    Hello!

    I want to experiment with baracuda and i'm wondering how can i adjust pw and prr adding trimmers. I can't find info on this type of oscillator. i don't want to modify to much the schematic. I will need to adjust up to 10000pps and pw in range of 20-300us.

    Many thanks

  • #2
    This might help you:

    Click image for larger version

Name:	Schmitt_Oszi.jpg
Views:	1
Size:	55.0 KB
ID:	349769
    Click image for larger version

Name:	40106_as_Oszillator.jpg
Views:	1
Size:	13.7 KB
ID:	349770

    Found this in http://homepages.internet.lu/absolut...ic/digosz1.htm

    Maybe this is of interest too: https://www.electronicspoint.com/thr...llator.280367/

    Comment


    • #3
      R7 controls the Pulse Count. Mine is variable from 500 to like 750 using pot in line with original Resistor.

      Comment


      • #4
        Replace R8 (6K with 47K trimmer, replace R9(100k) with 220K trimmer, "play" with C3 (6n ,for more PPS ,make it smaller (1nF).

        Comment


        • #5
          Thank you guys for help. i use revA schematic, the last one, geotech baracuda. I don' t know what schematic you using.

          thanks

          Comment


          • #6
            Ok, now i found a schematic matching your answers, i will just post it here so the thread will make sense for future members interested in this.
            With this occasion i thank also to mr KT315 for the schematic and contribution for this forum.

            Click image for larger version

Name:	sch.gif
Views:	2
Size:	56.9 KB
ID:	349776

            Comment

            Working...
            X