4 Inputs & 4 Outputs

[Suraj143]

I have 4 inputs.Also I have 4 output relays.What I need is

When input 1 is switched on relay 1 should turn on.
When input 2 is switched on relay 2 should turn on.
When input 3 is switched on relay 3 should turn on.
When input 4 is switched on relay 4 should turn on.

When input 1 & 2 is switched on relay 1 & 2 should turn on one after the other.
When input 1 & 2 & 3 is switched on relay 1 & 2 & 3 should turn on one after the other.
When input 1 & 2 & 3 & 4 is switched on relay 1 & 2 & 3 & 4 should turn on one after the other.

I want to do this without a uC.

 

[ericgibbs]

I have 4 inputs.Also I have 4 output relays.What I need is

When input 1 is switched on relay 1 should turn on.
When input 2 is switched on relay 2 should turn on.
When input 3 is switched on relay 3 should turn on.
When input 4 is switched on relay 4 should turn on.

When input 1 & 2 is switched on relay 1 & 2 should turn on one after the other.
When input 1 & 2 & 3 is switched on relay 1 & 2 & 3 should turn on one after the other.
When input 1 & 2 & 3 & 4 is switched on relay 1 & 2 & 3 & 4 should turn on one after the other.

I want to do this without a uC.

hi Suraj,
What is the time gap should turn on one after the other.

 

[Suraj143]

It is better if we can change the speed by varying the clock pulse.Ex:1 Second

 

[crutschow]

Is it ok if the delay occurs when you energize just one switch, e.g. if you operate only switch 4, there will be a 4-second delay until relay 4 is energized?

 

[Suraj143]

It must use the same delay.This is used for a camera switcher.It has 4 cameras.I need to show them one after the other by reading the 4 input switches.

I know this is a hard circuit.

 

[Pommie]

Are you saying the relays should switch sequentially? So, if switches 1,3 & 4 are on then the corresponding relays should each come on in sequence for one second?

Mike.