| 摘要 |
<p>The present invention concerns a direct-current converter which converts an input voltage (Ui) into an output voltage (Uo) and which comprises an operating voltage source (Vc), a power transformer (T) having a primary side (P) and a secondary side (S), an input voltage source (Ui) connected to said power transformer, at least one first power switch (swA, swB) disposed on said primary side (P), and at least one second power switch (srA, srB) disposed on said secondary side (S) and rectifying the output voltage. In the invention, the direct-current converter further comprises a regulating circuit (PPC), which is connected to said first power switch (swA, swB) and said second power switch (srA, srB) to control the timing of their switching functions, and an auxiliary power source (AUX PS) arranged to supply power to said regulating circuit (PPC) and connected to the operating voltage (Vc).</p> |
