1 input pulse becomes 2 output pulses. How to do it?

S

SteveyD

New Member

• Oct 17, 2010

• #1

Hello

I'm working on a counter circuit and I would like to make 1 input pulse become 2 output pulses.

I'd prefer not to use a microcontroller if I don't need to.

Any suggestions?

 

MikeMl

Well-Known Member

Most Helpful Member

• Oct 17, 2010

• #2

A CMOS exor gate where one of the inputs gets your existing clock signal and where the other input gets the same clock delayed by passing it through a series R and shunt C delay...

 

Reloadron

Well-Known Member

Most Helpful Member

• Oct 17, 2010

• #3

The circuit you linked to is a counter that will count 0 through 9 over and over again. I don't quite get what you are asking:

1 input pulse become 2 output pulses

Click to expand...

What exactly are you trying to do?

Edit: Maybe Mike has it right if that is what you are after.

Ron

 

Last edited: Oct 17, 2010

S

SteveyD

New Member

• Oct 17, 2010

• #4

Using the circuit linked in the first post, I'd like to have the trigger input pulse advance the counter x2, instead of x1.

So instead of counting by 1's, it counts by 2's. (2,4,6,8, etc)

 

S

SteveyD

New Member

• Oct 17, 2010

• #5

Mike,

So perhaps a 555 in this fashion with pin2 as the input and not closed?

 

B

BrownOut

Banned

• Oct 17, 2010

• #6

Simple RC delay + schmitt trigger + OR gate w/original pulse.

 

crutschow

Well-Known Member

Most Helpful Member

• Oct 17, 2010

• #7

BrownOut said:

Simple RC delay + schmitt trigger + OR gate w/original pulse.

Click to expand...

As MikeML stated it needs to be an Exclusive OR gate, not a standard OR gate.

 

B

BrownOut

Banned

• Oct 17, 2010

• #8

crutschow said:

As MikeML stated it needs to be an Exclusive OR gate, not a standard OR gate.

Click to expand...

Yeah, that would be better.

 

Last edited: Oct 17, 2010

MikeMl

Well-Known Member

Most Helpful Member

• Oct 17, 2010

• #9

This has been posted before.

 

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