| 摘要 |
<p>The invention relates to a security circuit for a power supply feeding a DC system. According to the invention, the security circuit is disposed on the outlet of the power supply, and a switch element (S1) is disposed between the positive power supply clamp (3) and the positive output clamp (1) towards the DC system, and a choke coil (L1) that is disposed between the switch element (S1) and the positive output clamp (1). Said choke coil (L1) is connected to an output capacitor (C2) on the side connected to the positive output clamp (1), and the side of the choke coil (L1) that is connected to the switch element (S1) is connected to the cathode side of a diode (D1) that is connected in parallel to the output capacitor (C2). Said security circuit also comprises a control for the switch element (S1), connecting the switch element (S1) in accordance with the power measured in the security circuit.</p> |
