-3

I read an article that claimed it is possible for one 555 to amplify another when they are placed in cascade (serially). We always use transistors for amplification; why would we place a 555 in that position?

Null
  • 7,448
  • 17
  • 36
  • 48
EJavaM07
  • 1
  • 1
  • 1
    The amplifier in `555` is not really used for "amplification" *per se*. `555` main application is timing circuits (multivibrators and such) – Eugene Sh. Feb 22 '22 at 19:14
  • 5
    Can you specify what "amplifying a timer" means? – Ilya Feb 22 '22 at 19:16
  • 1
    I for one, would like to read this article. Please click the edit link below your question and add a link to this article, thank you. – rdtsc Feb 22 '22 at 19:36

2 Answers2

2

The internals of a 555 consist of a pair of comparators and an S-R flip flop. It doesn't have an 'amplifier' as such.

More about the 555 here: Astable 555 circuit always on, not oscillating

Perhaps what you mean is to use multiple 555s to create longer time periods. In theory, you could do that.

(related: Why isn't my 555 cascading timer working?)

If that's what you're after, a long binary counter or a microcontroller are better options.

hacktastical
  • 49,832
  • 2
  • 47
  • 138
1

No, not possible, as an NE555 does not amplify, it's not an amplifier.

We would not place a 555 in that position.

Justme
  • 127,425
  • 3
  • 97
  • 261