What exactly does this mean? Most power supply spec sheets that I've seen specify a voltage/current range that goes all the way down to 0. For the 5700N series, the minimum voltage is "guaranteed to a maximum .2% of the rated output voltage" and the "minimum current is guaranteed to a maximum of .4% of the rated output current". Is this for CV/CC? What happens if 10k Ohm resistor is connected across the terminals while providing 1 Volt? Any feedback would be much appreciated.
Jon
Jon
The N5700 power supplies are single quadrant DC Power supplies. All of our power supplies have an offset error to the programming specs. Let's say for instance you are using a N5742A. The voltage programming spec is .05% + 4 mV and the current programming spec is 0.1% + 90 mA. That means that in CV mode, when you have the supply set to 0 V, it could be as low as -4 mV. We bias our power supplies so that they always start out in the correct quadrant (the voltage will always be positive).
This does not mean that you can't have 0 A when the unit is in CV mode though. This stipulation is only for the minimum voltage that you can program. Ohm's law will always hold true. In your example, the unit will have 0.1 mA flowing.
Let me know if this makes sense to you.