picstudent
New Member
Hello
I need to measure a DC voltage that varies from +55V to +75V approximately.
I can do it using a PIC Micro. But I need to derive the +5V DC from the voltage I need to measure.
Which is the best method to derive +5v from this source. Linear supply using 78xx reg will generate heat at this input output difference?
I need to run a PIC micro and three seven segments digits from this supply. Maximum 500ma or something altogether.
Please suggest the best method.
Thanks
Roy
I need to measure a DC voltage that varies from +55V to +75V approximately.
I can do it using a PIC Micro. But I need to derive the +5V DC from the voltage I need to measure.
Which is the best method to derive +5v from this source. Linear supply using 78xx reg will generate heat at this input output difference?
I need to run a PIC micro and three seven segments digits from this supply. Maximum 500ma or something altogether.
Please suggest the best method.
Thanks
Roy