HI,
I have created a timer with 4060 and 4017 ic. To turn a relay for specific time. I want a trigger signal for this relay at pin# 12 of the 4060 ic. I have a dc supply of 12 volt. I want to convert this continous dc to a single pulse. Here is the schematic. If 555 or simple components like transistor are used for this purpose it will be easy for me.

 

You could do that with a single monostable 555 timer depending on how accurate the time delay needs to be.

 

You could do that with a single monostable 555 timer depending on how accurate the time delay needs to be.

Please share schematic

 

hi imani,
This is one option.
R1 and C2 set the ON period.
E

 

hi imani,
This is one option.
R1 and C2 set the ON period.
E
View attachment 276008

What is the sim only here? Eric

 

hi imani.
It represents the 4060 output signal, pin #12, as a test pulse.
E

 

hi imani.
It represents the 4060 output signal, pin #12, as a test pulse.
E

I do not have 10nf capacitors could i use .1uf capacitor. How base of transistor 547 gives output, where it is considered to be input.

 

This is one option.

You forgot the spike suppression diode across the relay coil.

 

I do not have 10nf capacitors could i use .1uf capacitor.

Yes, that should also work.

 

I have a dc supply of 12 volt. I want to convert this continous dc to a single pulse.

Do you want the pulse just when the 12V supply is energized?
If so the 555 circuit can be simplified by eliminating Q1 and some of the associated circuitry.

 

Please share schematic

So we don't make assumptions:
1. How long do you want the relay energized?
2. What is the part number of the relay?

 

Do you want the pulse just when the 12V supply is energized?
If so the 555 circuit can be simplified by eliminating Q1 and some of the associated circuitry.

Yes only when the supply is given to the 555

 

So we don't make assumptions:
1. How long do you want the relay energized?
2. What is the part number of the relay?

I do not want a relay with 555 timer, I have shared a circuit of 4060 timer, 4060 circuit stops when it has counted its time, the relay is attached with 4060 circuitry. It only starts again when a pulse is applied at its pin#12, the supply of 555 time should reset the timer only. The supply of 555 will come from output of this circuit Battery Voltage Monitor with LM339

 

If 555 or simple components like transistor are used for this purpose it will be easy for me.

Classic 555 pulse generator when power is applied. Diodes D1 and D2 may not be needed.

 

I do not want a relay with 555 timer, I have shared a circuit of 4060 timer, 4060 circuit stops when it has counted its time, the relay is attached with 4060 circuitry. It only starts again when a pulse is applied at its pin#12, the supply of 555 time should reset the timer only. The supply of 555 will come from output of this circuit Battery Voltage Monitor with LM339

Ok

 

Classic 555 pulse generator when power is applied. Diodes D1 and D2 may not be needed.
View attachment 276036

The circuit triggers a pulse, but it is generating a approx 2.3 volt pulse and is not triggering the reset of 4060 pin#12.

 

The circuit triggers a pulse, but it is generating a approx 2.3 volt pulse and is not triggering the reset of 4060 pin#12.

What is the supply voltage feeding the 555?
BTW the link to that LM339 Battery Monitor is not correct it only shows the 4060 circuit.

 

What is the supply voltage feeding the 555?
BTW the link to that LM339 Battery Monitor is not correct it only shows the 4060 circuit.

Actually for testing purpose i was using 9 volt battery, but i was also missing something, connecting the grounds of 2 circuits. Well thanks for the great circuit.

 

Here's an alternate circuit:
Pulse width is controlled by R1/C1