| 摘要 |
A DC power supply circuit arrangement for supplying DC power from a power source (20) through a common conductor (1) to a load (30, 32), comprises a plurality of switches (10, 20) connected between the power source (20) and the common conductor (1) and/or between the common conductor (1) and the load (30, 32), each of the switches having one terminal connected to the power or the load and the other terminal connected to the common conductor, an energy absorber (6) having two terminals, a first diode (12, 15) connected between the one terminal of each of the plurality of switches and one of the two terminals of the energy absorber in a polarity so as to allow a current to flow from the one terminal of the switch to the one terminal of the energy absorber, a second diode (13, 16) connected between the one terminal of each of the plurality of switches and the other terminal of the energy absorber in a polarity so as to allow a current to flow from the other terminal of the energy absorber to the one terminal of the switch, and a circuit (14) connecting the other terminal of the energy absorber to the common conductor. |
