| 摘要 |
PROBLEM TO BE SOLVED: To provide a reduction device which can always reduce the frequency components belonging to a specific frequency band, sufficiently among the frequency components of noise superposed on a voltage applied from a battery to a plurality of loads.SOLUTION: A reduction device 1 is connected with connection nodes between a battery 2 and loads 3a, 3b, ..., 3f. A control unit 15 detects the operation state of the loads 3a, 3b, ..., 3f, respectively, from the on/off signal of switches 4a, 4b, 4c, respectively. Depending on the operation state thus detected, the control unit 15 selects a capacitor and a wire, one by one, from capacitors C1, C2 and wires W1, W2, and connects one end of a circuit formed by connecting the capacitor and wire thus selected with a connection node between the battery 2 and loads 3a, 3b, ..., 3f. Consequently, frequency characteristics of the reduction device 1 are changed. |
