| 摘要 |
PURPOSE:To reduce switching noise in a power supply circuit and the like in which switching is performed at a high speed as to a circuit for reducing noise in an electronic machinery and apparatus. CONSTITUTION:In a circuit for supplying power to a parallel circuit of a switching circuit 1 and a capacitor 3, a constant-current circuit consisting of a semiconductor element 2 for rectification or a semiconductor is inserted in series to a line 4 connecting a power supply with the switching circuit 1. |
