Let’s reformulate again: you start chasing a dead horse.hi..
12VDC----100R/1W------LED
Now as I can't throw DC there, cable is 100ft long, and making some small rectifiers is not a matter for me... (Trust me...) now i just want a soft start for the AC part...
....
Let’s reformulate again: you start chasing a dead horse.
Using 12VDC or 12VAC, same situation, there are equal resistive losses in the power cables.
... because it is like first i want to pass 10% of the both cycles, then 20% and so on till 100% of the both cycles...
Step 1: Set duty=5
Step 2: Detect Zero Cross
Step 4: if zero cross not detected, return to step 2.
Step 5: Zero cross detected. Init PWM with duty in inverted mode
Step 6: PWM on for duty for first half cycle
Step 7: PWM on for duty for next half cycle
Step 7: increment duty to duty+5
Step 8: Goto Step 2 until duty=255
Step 9: PWM with full duty
Step 10: Goto Step 9
hellow sir,
... then off on a specific constant time... (because triacs only need to trigger ON).
can I use optocoupler instead of a the transistor?? and also can I use 2N2222A for Transistor??
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