| 摘要 |
In a three-phase power supply comprising a rectifier bridge circuit of six rectifying diodes and having for each phase one unit of two rectifying diodes (101, 102, 103, 104, 105, 106) connected in series at a connection point (121, 123, 125), whereby an unconnected cathode of each unit of two rectifying diodes is connected to a pole of a DC power supply system, especially supplying a LEDs system with LED segments, and an unconnected anode of another diode of each unit of two rectifying diodes (101, 102, 103, 104, 105, 106) connected at the connection point (121, 123, 125) is connected to (-U) pole of the DC power supply system supplying the electronic device provided with a control, to each rectifying diode (101, 102, 103, 104, 105, 106) of the rectifier bridge circuit of six rectifying diodes is connected directly in parallel a field-effect transistor (FET) of a rectifying unit (111, 112, 113, 114, 115, 116) carrying electric current in the same direction as the rectifying diode bypassed by the field-effect transistor (FET). |
