Thanks for your thoughts but I believe I have now found something that may do the trick. Its a variable regulator from Texas (TL783CKC) with a Vin max of 125V above Vout value. That gives me a Vin max of 149V @ Vout=24V. I will have this component in the morning so I will soon see if it will...
Can anyone here shed any light upon this problem for me? I want to use a 24V fixed+ V reg and power it from an ac supply. Easy. Well the ac supply has a variable voltage value, anything from 80 to 140 volts @50 - 60 Hz. The problem is that the V reg has input perameters of 26V min - 40V max...