bforu_gs:
Far-seeker: Can you provide me easy circuit for 3/4/5 amp transformer power supply.
I misunderstood you, from your initial description I thought you were using the term "transformer" interchangably with "power supply" and you had a complete AC-to-DC commercial power supply and were stepping down from it. Instead you really were refering specifically to a transformer as part of your custom circuitry. Sorry for the confusion on my part...
Before we discuss changes to your circuit, I want to know more about this transformer, especially maximum rated current on the secondary winding (though a datasheet, if available, would be most helpful). Is it actually rated at only 1 A, or is that just what your circuitry is drawing from it?