METHOD OF PREVENTING OCCURRENCE OF NOISE BY REMOVING CAUSE OF BRINGING ABOUT NOISE INSIDE ELECTRONIC CIRCUIT

摘要

PURPOSE:To see that only the voltage of a DC power source is applied stably and that overcurrent does not flow to this distributed capacity so as to prevent the occurrence of noise by seeing that the current flowing from other thing does not flow into the electric conductor on the earth side, which connects the earth side of each part of an electronic circuit with the origin, thereby removing the voltage drop by this current. CONSTITUTION:Connecting one point of each metallic body 7 with the origin of a DC power source 1 by the electric conductor 6 on earth side being insulated each independently from others, it takes the shape of the voltage of the DC power source 1 joining the potential that this metallic body 7 has, and even if each metallic body 7 is subjected to electromagnetic waves or the object having different potential contacts with it and the potential of this metallic body 7 changes, only the voltage of the DC power source 1 comes to be applied to the respective capacities distributed between the electronic circuit and each metallic body 7, and this voltage does not change, so overcurrent does not flow, either, and noise ceases to occur. Hereby, the occurrence of noise can be prevented simply without needing special parts.