| 摘要 |
The invention relates to a circuit for transforming, switching, adjusting or controlling electric power, comprising an electric source 1, a load 2, and a device 3 for transforming, switching, adjusting or controlling the electric power resulting on the load 2. To reduce the losses, it is provided that the device 3 is formed by at least one transformer 10, 10', whose secondary side overlays the source 1 and whose primary side is connected with a control device 11, whereby at certain points of time and for certain periods of time, a voltage or a current can be produced at the primary side of the transformer 10, 10', which voltage or current induces a voltage or a current, respectively, at the secondary side of the transformer 10, 10', which voltage or current, respectively, is equal to the voltage or current, respectively, of the source 1 at this point of time and for that period of time. Thus, conventional electronic valves can be substituted by a transformer 10, 10', and the losses usually occurring can be markedly reduced thereby. |
