Passive components refer to elements that do not amplify or switch signals. Programmable DC power supplies utilize a full range of passive components, such as resistors and capacitors, but from a measurement perspective, the main focus should be on magnetic components (magnetic devices), particularly inductors and transformers. Both inductors and transformers consist of iron cores wrapped with several turns of copper wire. The impedance of an inductor increases with frequency, providing greater resistance to higher frequencies than to lower ones, making them suitable for filtering the input and output currents of programmable DC power supplies. They help determine some performance indicators of programmable DC power supplies. Aeronautical Power Supply
Our sharing on testing methods for the efficiency of programmable DC power supplies concludes here. In constant-voltage mode, the output current of a programmable DC power supply varies with the load to ensure a constant output voltage. In constant-current mode, the output voltage of a programmable DC power supply varies with the load to ensure a constant output current. 400HZ power supply
