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  6. Explanatory Material "Basic Information on Noise and First Steps for Countermeasures" <Currently Available for Free>

Explanatory Material "Basic Information on Noise and First Steps for Countermeasures" <Currently Available for Free>

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last updated:Dec 10, 2025

COSEL
COSEL
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Visualization of invisible noise from power supply manufacturers.

We would like to introduce basic information about noise, which is frequently consulted in our customer support department, as well as a simple measurement tool called "CESA" (developed in-house and not for sale) that visualizes "invisible noise." Based on the know-how cultivated as a power supply manufacturer, we clearly explain the types of noise, their impacts, and the first steps for effective measures that can be useful on-site, along with examples of confirmed effectiveness. We encourage you to read it! 【Contents】 1. Why is noise a problem? 2. Types of noise 3. Concepts and realities of noise countermeasures 4. Visualizing noise with the simple measurement system "CESA" 5. Examples of confirmed effectiveness of countermeasures 6. Other noise-related services offered by our company *The explanatory document "Basic Information on Noise and First Steps for Countermeasures" is available for immediate viewing via "PDF Download."

    power supply
id="product-main-img"

Explanatory Material "Basic Information on Noise and First Steps for Countermeasures" <Currently Available for Free>

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COSEL

COSEL

Electronic Components and Semiconductors

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Kohsel is a manufacturer of "DC stabilized power supplies" and "noise filters." The "switching power supply," which utilizes the high-speed switching action of semiconductors, is Kohsel's main product. Due to its compact size, lightweight, and high efficiency, switching power supplies are used in almost all electronic devices, including information and communication equipment, medical devices, and factory automation equipment. Additionally, since 2005, Kohsel has been working on noise filters that protect electronic devices from various types of noise and has brought them to market. In today's world, where most products surrounding society and daily life have become electronic, the DC stabilized power supply, which can be considered the heart of such products, holds the key to the future. At Kohsel, we continue to create reliable products that build the future of electronics through endless dialogue with new technologies.

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