1. Whether there's voltage without current or perhaps current without voltage, in either scenario, the power supply is operating normally. Operators should check if their loads are properly insulated, if they are short-circuited or open-circuited, and if they meet the standards, etc.
2. During voltage adjustment, it was found that the no-load voltage could not be increased. Some operators prefer to turn the potentiometer all the way to the left, which prevents the power supply's no-load voltage from being adjusted as well. This indicates a lack of substantial understanding of "current adjustment." Since the power supply consumes a small amount of current even when it is unloaded, turning "current adjustment" to zero does not allow even a tiny current to flow, of course, the no-load voltage cannot be increased. Therefore, it is generally not recommended to adjust "current adjustment" to zero. Standard operating procedure: When using the power supply as a voltage regulator, turn the current adjustment knob fully clockwise and maintain it. Adjust the voltage adjustment knob to control the output DC voltage value. When using the power supply as a current regulator, turn the voltage adjustment knob fully clockwise and maintain it. Adjust the current adjustment knob to control the output DC current value. 36V aviation power supply, 400HZ frequency conversion power supply, 115/200V power supply, 27V DC power supply, 400HZ power supply, aviation power supply
3. The power supply outputs both voltage and current, but when trying to adjust the voltage, it can't be increased anymore. Similarly, even though the power supply outputs both voltage and current, if you try to increase the current further, it won't go any higher. This is due to the operator's lack of understanding of the concepts of "constant voltage" and "constant current." If the "constant voltage" indicator is on, it indicates that the power supply is operating in constant voltage mode, where the output current is determined by the load, not by the operator's adjustment. Similarly, if the "constant current" indicator is on, it means the power supply is in constant current mode, and the output voltage is also determined by the load, not adjusted by the operator. Only by adjusting the "current adjustment" knob will the output current change, and the output voltage will change accordingly. To modify the voltage and current on the load, one must adjust the voltage when in constant current mode and the current when in constant voltage mode.
