Improving quality of noise suppression in power supply circuits by means of B36 filters

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The article describes a design of feedthrough 3-terminal filters and their advantages versus traditional multilayer ceramic capacitors in noise suppression in power supply circuits. It gives the characteristics of B36 filter series produced by Kulon LCC.

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作者简介

D. Makhin

ООО «Кулон»

编辑信件的主要联系方式.
Email: mahin@kulon.spb.ru

главный конструктор

俄罗斯联邦

A. Sizikov

ООО «Кулон»

Email: magazine@technosphera.ru

коммерческий директор

俄罗斯联邦

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2. Fig. 1. The principle of operation of the blocking capacitor

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3. Fig. 2. Schematic dependence of the capacitor impedance modulus on frequency

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4. Fig. 3. Equivalent capacitor circuit. RD and SD are the resistance and capacitance of dielectric absorption, REP and LEP are equivalent series resistance and inductance, respectively, RU is the leakage resistance

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5. Fig. 4. The scheme of formation of equivalent series resistance and inductance and the path of the interference current in a multilayer ceramic capacitor

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6. Fig. 5. The layout of the contacts (a), the metallization of the layers (b) and the connection of the layers to the contacts (c) of the three-contact flow-through ceramic filters B36. The metallization of the layers is shown in a darker color

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7. Fig. 6. Formation of four parallel current flow paths in a three-contact flow-through ceramic filter

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版权所有 © Makhin D., Sizikov A., 2023