Created "Dec 3 2009"

Here are some 555 IC Timers for Varous Applications
Sorry, No Circuit Boards at this time.
(But IF I get enough Requests, I will Create them.)

Upon Applying Power to "Timer-1", It has a Delay of a Number of Seconds, as Determined by You.
Then it output goes Hot. A Mosfet can be Added as shown to drive more Current.

Upon Applying Power to "Timer-2", It has a Delay of a Number of Seconds, as Determined by You.
Then it output goes Hot for a number of seconds, Then the Delay again, Hot Again, AND REPEATING.

I use Timer-1, in my Truck.
Its connected to the Ignition Switch and operates a Relay so to Connect my Auxilarly Battery
to my Alternator, about 45 Seconds After Starting.
This Prevents an Excessive Load to the Alternator on Start-up.
Which is especially good in COLD Weather or Hard Starts.


Back to "My HOME Page"



 Timer-1, Schematic

 Timer-2 Schematic

All Imformation in this Article is "Copyright protected".

 Chemelec 
 *Copyright © 2009*