| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem where although magnetic field generated from a rectification smoothing circuit 35 and a switching circuit 36 can be shielded, noise (for example, magnetic field or an electric field) transmitted to the outside a metal substrate 31 through an I/O terminal of the metal substrate 31 can not be shielded, with sufficient control effect of the noises being unable to be attained. SOLUTION: This module is constituted so that a ferromagnetic body 11 collectively encloses each phase of a circuit pattern 6 on an output side of a switching circuit 5. |
