1. In cases where there is voltage but no current, or current but no voltage, it is advisable to check if the power supply load is making good contact, whether the load is experiencing a short circuit or an open circuit, and whether the load complies with standards; Aviation Power Supply
When adjusting the voltage, the no-load voltage cannot be raised, and the reason for this is that even when the power supply is in no-load condition, it consumes a tiny bit of current. If the "current regulation" is turned down to zero, not even a small amount of current is released, of course, the no-load voltage cannot be raised either. Therefore, it is generally not advisable to set the "current regulation" to zero.
3. The direct current (DC) power supply has both voltage and current outputs. However, if you adjust the voltage and it no longer adjusts, this is mainly due to the operator's lack of understanding of the "constant voltage" and "constant current" concepts. 400HZ power supply
