| 摘要 |
The invention relates to a circuit arrangement for delivering power to coils (1, 2), which circuit arrangement includes a first and a second coil (1, 2) a first and a second voltage source (4, 5) and a first and a second quadrupole switching network (6, 7), the input (20) of the first quadrupole switching network (6) being connected to the first voltage source (4) and the second voltage source (5) being connected to at least one terminal (14, 15) of the second quadrupole switching network (7). Known switching arrangements have separate voltage sources for each individual power amplifier. In the circuit arrangement in accordance with the invention the two terminals (12, 13) at the output (22) of the first quadrupole switching network (6) are connected, each time via the first and the second coil (1, 2), respectively, to the two terminals (16, 17) at the output (23) of the second quadrupole switching network (7). It is advantageous that a common voltage source (5, 4, 4a) with a common capacity for delivering power to a plurality of coil systems can thus be provided.
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