| US 7,342,799 B2 | ||
| System using power converter, microsurge suppressor and microsurge suppression method | ||
| Nobuyoshi Mutoh, Tokyo (Japan) | ||
| Assigned to Keio University, Tokyo (Japan) | ||
| Filed on Aug. 20, 2004, as Appl. No. 10/922,167. | ||
| Claims priority of application No. P.2003-298822 (JP), filed on Aug. 22, 2003. | ||
| Prior Publication US 2005/0078426 A1, Apr. 14, 2005 | ||
| Int. Cl. H05K 5/00 (2006.01) | ||
| U.S. Cl. 361—752 [361/790; 361/729; 361/760; 361/761] | 17 Claims |
| 1. A system, comprising:
a power converter controlled by switching, and
a microsurge suppressor on the side of a load inserted on a power supply line from the power converter to the load, wherein
the microsurge suppressor on the side of the load includes a multi-layer printed wiring board on the side of the load provided
with a first terminal on the side of the power converter and a second terminal on the side of the load, and a capacitative
element for bypassing a surge on the side of the load;
a first power wiring and a second power wiring respectively capacitively coupled are formed on a first wiring layer and a
second wiring layer of the multi-layer printed wiring board on the side of the load;
the first terminal and the second terminal are connected via the first power wiring;
the second terminal and a terminal of the load are directly connected; and
the capacitative element for bypassing a surge on the side of the load is directly connected to the second terminal and the
end on the side of the second terminal of the second power wiring.
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