Greetings yet again,
My project progresses slowly an I have now come across a new challenge.
I have a 24V supply.
This charges 2 X 4700uf Caps.
Hence I have them charged and ready to go.
I am working on a simple charging and charged LED indicators as I type.
Currently a row of toggle switches would release the now abundant voltage to a fuse and bang goes the fireworks.
I need to replace these toggle switches with a device that can be triggered via a logic circuit.
1, Toggle switches are expensive and cumbersome
2, This will allow either a small data switch 5 or 12V (Toggles are rated a 5 amps) or a logic circuit say 555 timer for a chase etc.
There are either 24 or 32 seperate circuits per unit so a PCB solution would be an advantage.
OK my question is what should I use as the logic switch SCR/TRIAC/Power Transistor ?
Max power will be maybe 3 amps @ 24 Volts
Fuses require 800mA at 4ms for firing
Fuses are save at less than 180mA for 5 Mins
The fuse heads do have a habit of shorting so the trigger must switch on and then off. (This I believe may be a problem for SCR's)
A timed switch might be an option say closed for 300 - 500 ms then open.
If there is any other info please ask I believe I can find some additional info on firing pules etc on the fuses if required .
Any suggestions which particular path I should try walking ?
Thanks
Emmy
My project progresses slowly an I have now come across a new challenge.
I have a 24V supply.
This charges 2 X 4700uf Caps.
Hence I have them charged and ready to go.
I am working on a simple charging and charged LED indicators as I type.
Currently a row of toggle switches would release the now abundant voltage to a fuse and bang goes the fireworks.
I need to replace these toggle switches with a device that can be triggered via a logic circuit.
1, Toggle switches are expensive and cumbersome
2, This will allow either a small data switch 5 or 12V (Toggles are rated a 5 amps) or a logic circuit say 555 timer for a chase etc.
There are either 24 or 32 seperate circuits per unit so a PCB solution would be an advantage.
OK my question is what should I use as the logic switch SCR/TRIAC/Power Transistor ?
Max power will be maybe 3 amps @ 24 Volts
Fuses require 800mA at 4ms for firing
Fuses are save at less than 180mA for 5 Mins
The fuse heads do have a habit of shorting so the trigger must switch on and then off. (This I believe may be a problem for SCR's)
A timed switch might be an option say closed for 300 - 500 ms then open.
If there is any other info please ask I believe I can find some additional info on firing pules etc on the fuses if required .
Any suggestions which particular path I should try walking ?
Thanks
Emmy