ELECTRONIC DEVICE-MOUNTED APPARATUS AND NOISE SUPPRESSION METHOD FOR SAME
First Claim
1. An electronic device-mounted apparatus comprising:
- a printed board;
one or a plurality of electronic devices that are mounted on the printed board and that operate by a clock signal;
a radiator means provided such that said electronic devices are interposed between said printed board and said radiation means;
connectors for electrically connecting said radiator means and theground of said printed board; and
a dielectric component that is independent of said electronic devices and that is interposed between said radiator means and said printed board at a position other than locations where said electronic devices are mounted.
1 Assignment
0 Petitions
Accused Products
Abstract
A noise electric current flowing through a heat sink is efficiently discharged to the ground of a printed circuit board to reduce levels of clock signal harmonic noises generated from the heat sink. An electronic device-installed apparatus is provided with a printed circuit board (1), one or more of electronic devices (2, 3) that are mounted on the printed circuit board (1) and that operate in accordance with a clock signal, and a heat sink means set to hold the electronic devices (2, 3) together with the printed circuit board (1). The heat sink means (5) is connected with the ground of the printed circuit board (1) through a connecting unit (6) and a plurality of dielectric components (12), which are independent of the electronic devices (2, 3), are provided between portions of the printed circuit board except those on which the electronic devices (2, 3) are mounted and the heat sink means (5).
42 Citations
12 Claims
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1. An electronic device-mounted apparatus comprising:
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a printed board; one or a plurality of electronic devices that are mounted on the printed board and that operate by a clock signal; a radiator means provided such that said electronic devices are interposed between said printed board and said radiation means; connectors for electrically connecting said radiator means and the ground of said printed board; and a dielectric component that is independent of said electronic devices and that is interposed between said radiator means and said printed board at a position other than locations where said electronic devices are mounted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic device-mounted apparatus noise suppression method for suppressing noise of an electronic device-mounted apparatus that includes a printed board, one or a plurality of electronic devices that are mounted on the printed board and that operate by a clock signal, and a radiator means provided such that said electronic devices are interposed between said printed board and said radiator means, said method comprising steps of:
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electrically connecting said radiator means and the ground of said printed board; and interposing a plurality of dielectric components between said printed board and said radiator means at positions other than the sites where said electronic devices are mounted to suppress the radiation of noise from the side of said radiator means that is opposite said printed board. - View Dependent Claims (12)
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Specification