I would like to make an automotive delay relay circuit by 555, but by turn on/off another relay near this circuit the delay time changes, I used regulator, inductor and RC filter for input supply but unfortunately the problem not solved,Iwill be glad if suggest me an application solution.
Unfortunately, your description is as clear as mud.
If you would describe your desired application more precisely, we may be able to help.
Cheers
PeteS
--- You haven't said how you're triggering the 555, so I didn't show anything about that,but try this for the power supply:
78L05 +-------+ +12V>----+---[1N4002>]--+--------+------|IN OUT|---+--+5V |K |K |+ | GND | | [1N4002] [1N5355] [1000µF] +---+---+ [0.1] | | |25V | | GND>-----+-+------------+--------+----+-----+-------+ | | | 7555 | | +--------+ | +---|GND | | | | | E [0.1] | OUT|---[150]---B 2N4401 | | | C +5V--+---|Vcc | | +--------+ +---------+ | | [IN4001] [COIL]- - | |K | O--> |....... try this for the power supply:
...snip...
Now that's what I call bulletproof! Betcha can't even hear the 'clik!'
Cheers-- Terry--WB4FXD Edenton, NC
And for his work, will he even get a thank you from the op? It would be refreshing. Too often, the op disappears, and we never learn how he/she made out. And too often, somone posts a nice solution and doesn't get any appreciation from the poster. Grumble.
Ed
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.