| 摘要 |
A power supply includes a DC to AC converter with a switched power supply and a DC to AC converter that drives a load terminal via a first low pass filter having a 6 dB per octave response. A second low pass filter, having a 3 dB per octave response, is connected to the load terminal to drive one input of a comparator having another input responsive to a replica of the load terminal DC voltage. The comparator responds to a sudden increase in load terminal current to derive an output that closes a switch to supply additional DC current to the load terminal.
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