Active Component Measurement: Switching Devices
Transistor switch circuits typically consume energy during the switching process due to parasitic signals in the circuit that prevent immediate on/off operation. "Turn-off loss" refers to the energy consumed when switching devices transition from ON to OFF, while "turn-on loss" pertains to the energy consumed when transitioning from OFF to ON.
Passive Component Measurement: Magnetic Components
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 are composed of iron cores wrapped with several turns of copper wire. The impedance of inductors increases with frequency, providing greater blocking action at higher frequencies compared to lower frequencies, making them suitable for filtering the input and output currents of programmable DC power supplies. They contribute to determining some of the performance indicators of programmable DC power supplies.
The testing methods for the efficiency of programmable DC power supplies have been shared. In constant voltage mode, the output current of the programmable DC power supply varies with the load to ensure a constant output voltage. In constant current mode, the output voltage of the programmable DC power supply varies with the load to ensure a constant output current. Aviation power supply 3, 36V aviation power supply 2, 400Hz variable frequency power supply 2, 115/200V power supply 4, 400Hz power supply 8, aviation ground power supply
