Hi there,
I have been looking at the bench top power supply by Tony Roon.
Here is the schematic.
View attachment 61354
I have looked at the lm723 datasheet and would like to know how in this schematic they manage current limiting.
They are setting two current levels in this example.
I was wondering if someone might tell me how they arrived at Rsc (sense resistor in datasheet) as it applies in this example in a LM723 so as to calculate maximum current...
eg say I only wanted a maximum current of say 5amps how would I calculated that?
I would like to know this as I am using digital panel meters and will not need to adjust for the ammeter full scale deflection.. I will be putting the amp meter shunt resister in the main line so need to know how to calculate for the correct resistance between pins 2 and 3...
Hope someone might help here...
Cheers
Simon
I have been looking at the bench top power supply by Tony Roon.
Here is the schematic.
View attachment 61354
I have looked at the lm723 datasheet and would like to know how in this schematic they manage current limiting.
They are setting two current levels in this example.
I was wondering if someone might tell me how they arrived at Rsc (sense resistor in datasheet) as it applies in this example in a LM723 so as to calculate maximum current...
eg say I only wanted a maximum current of say 5amps how would I calculated that?
I would like to know this as I am using digital panel meters and will not need to adjust for the ammeter full scale deflection.. I will be putting the amp meter shunt resister in the main line so need to know how to calculate for the correct resistance between pins 2 and 3...
Hope someone might help here...
Cheers
Simon