minimum load

In switching power supply circuits, when the load is low, the output can become unstable and fall outside the specified range. In particular, auxiliary control type multi-output power supply devices may have auxiliary output voltages that fall outside the specified range when under light load. Additionally, in DC-DC converters, in cases of no load or light load, due to differences in the transfer function of the coil, the circuit can enter a discontinuous current mode in which current stops flowing. Therefore, to ensure the specified output, it is necessary to define a minimum load.