When using DC power, we may encounter issues where the current or voltage does not rise. Regardless of whether it's a current or voltage issue, the power supply is still functioning normally. Therefore, it's essential to check if the equipment's load is good, if there are any short circuits, and whether the load complies with specifications. If the power supply has a voltage output but the load wire is broken, the current output will be zero. Similarly, if there is an output of current but the load shorts out, the voltage output will also be zero. Aeronautical Power Supply
(2) When adjusting the voltage, there may be an issue where the voltage cannot be increased, resulting in an open circuit. Some users tend to rotate the adjustment button clockwise, which can lead to the power voltage not being adjustable. This is because it turns off all the current, thus preventing the open circuit voltage from rising.
(3) The power output has current, but when trying to increase the voltage, it fails to rise. 400HZ power supply
