| 摘要 |
A DC-DC converter for delivering electrical power to a load includes an output filter having an inductor and an output capacitor, a first switch, and a second switch. The first switch is configured to alternately couple and decouple the inductor to and from a DC input voltage as power is being delivered to the load. The second switch is configured to electrically disconnect the output capacitor when the load is removed or deactivated. Disconnecting the output capacitor allows the DC-DC converter to rapidly transition from an operating state to a disabled state, obviating any need to discharge the output capacitor in order to fully disable the DC-DC converter. Residual energy stored in the electric field of the output capacitor and/or the magnetic field of the inductor at the time the load is next reactivated is available to hasten transition back to the operating state. |
