| 摘要 |
<p>A system for determining an output current of a power converter having an output capacitor (COUT) and a component (LOUT) coupled thereto includes (1) an observer circuit (164), parallel-coupled to the output capacitor, that senses a voltage across the output capacitor and develops therefrom a capacitor signal representing a current through the output capacitor, (2) a sensor circuit (168), coupled to the component, that senses a characteristic of the component and develops therefrom a component signal representing a current through the component and (3) a summer circuit (172), coupled to the observer and sensor circuits, that derives an output signal representing the output current from the capacitor signal and the component signal. <IMAGE></p> |
