Switching regulator operating in a continuous and discontinuous mode

摘要: A switching regulator operates either in the discontinuous mode or continuous depending on magnitude of a load current. detector outputs signal Vg indicative whether is operating mode. In accordance with Vg, an error amplifier selectively first feedback ratio second so as to output Ver variation voltage regulator. The then supplied PWM (pulse-width modulation) comparator which turn signal. drives transistor switch input