| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To significantly suppress EMI by suppressing a common mode current that occurs inside an electronic apparatus. <P>SOLUTION: A current phase adjusting function section 101 for coping with EMI is provided back and forth of case lead-in ports (power source wiring connection portions 102a and 102b) for: power source wirings 103a, 104a and 104c led from an external power source to supply power to a main circuit 105 in a case; and ground wirings 103b, 104b and 104d. The current phase adjusting function section 101 has a circuit configuration including a capacitor C1 and inductors L1 and L2 which allows a phase difference between the current flowing on the power supply wiring 104a and the ground wiring 104b near the case lead-in ports to be set 180°by a common mode voltage of the power source wirings 103a, 104a and 104c and the ground wirings 103b, 104b and 104d. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
