I just recapped the switch mode power supply for my audio interface (Focusrite Saffire Pro40). The caps I used are low ESR.
Before plugging it in to the mainboard of the interface, I thought it would be a good idea to test it to be sure there aren't any issues.
I have read that the outputs of these switch mode supplies need to have some sort of resistive load in order for the power supply to work. There are 4 rails to this power supply, 5V, 15V, -15V and 51V. The problem I am having is determining what value/wattage of resistors to use. There is essentially zero information about this power supply online.
I know the whole interface (Focusrite Saffire Pro 40) draws 12.3W or .17A and the resistive load is 705 Ohms.
I assume the 51V rail is for phantom power.
Is there a way to figure out what resistance/wattage resistors to use to do this test?
Before plugging it in to the mainboard of the interface, I thought it would be a good idea to test it to be sure there aren't any issues.
I have read that the outputs of these switch mode supplies need to have some sort of resistive load in order for the power supply to work. There are 4 rails to this power supply, 5V, 15V, -15V and 51V. The problem I am having is determining what value/wattage of resistors to use. There is essentially zero information about this power supply online.
I know the whole interface (Focusrite Saffire Pro 40) draws 12.3W or .17A and the resistive load is 705 Ohms.
I assume the 51V rail is for phantom power.
Is there a way to figure out what resistance/wattage resistors to use to do this test?