Low frequency 24V Square Wave Oscillator?

Discussion in 'General Electronics Chat' started by rachelgl, May 31, 2013.

  1. rachelgl

    Thread Starter New Member

    Apr 5, 2011
    Hi there,

    I would like to build a 24V square wave oscialltor that operates at a frequency around 500Hz and has a very low power consumption. I built an op-amp oscialltor like the one on this page:

    I tried using both a LM741 and a LM393. The circuit works but the current consumption at 24V is roughly 1mA. I was wondering if there were any alternative configurations that would prehaps consume a much lower current (uA range if possible)? It has to be a square wave oscialltor.

    I appreciate any advice anyone may have!

    Thanks in advance!

  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    Last edited: May 31, 2013