A story from someone who makes coils: What problems arise when it becomes saturated?
Checkpoints to avoid viewing Isat only in numbers.
The mascot "Coil-chan," modeled after the 7G series, will serve as the interviewer and present an interview with the development team "Neo-san."
The term "saturation" often comes up in discussions about inductors. While it is said that "saturation is dangerous" and "saturation is bad," what exactly happens and how to confirm it tends to remain vague. Today, from a developer's perspective, we will discuss how to move the conversation about selection and evaluation forward without letting "saturation" (sachiru) end as a "scary word."
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basic information
- What is the state of "saturation" (sachiru)? - What happens when saturation occurs? (Symptoms vary with the circuit) - Pitfall: It may be okay at room temperature, but Isat decreases at high temperatures - The way you ask about Isat is important: focus on "conditions" and "minimum L" rather than just numbers - "Three steps of confirmation" for smoother conversation (ways to ask that can be used as is)
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Applications/Examples of results
Be careful not to simply choose Isat based on catalog specifications, as there may be cases where you end up in trouble later. Instead of relying solely on numbers, if you can verify the peak current, temperature, and "the minimum amount of L that must remain for it to be valid under those conditions," you can significantly reduce issues arising from saturation.
Company information
"Sagami Electric Co., Ltd." is a coil manufacturer with over 60 years of establishment. In recent years, we have been delivering high-reliability, high-quality products worldwide, primarily for automotive applications, as well as in the fields of information communication and AV equipment. Currently, it is expected that the utilization of electronic components will increase due to the trend of electrification, particularly in the automotive sector. Our company has established a consistent system from product development to manufacturing, quality control, and sales, responding to a wide range of diverse requests. Furthermore, we aim to actively enter the "IoT" field, which is expected to see future growth. We have an important phrase that all employees share: "Keep promises." Within this simple phrase lies the commitment of each employee to their work. A solid foundation of technology is strengthened by the sincere attitudes of each individual. We are determined to inherit the DNA of coil technology that we have cultivated over many years and continue to create coils that are needed in the world, while valuing our "face to face" connections with customers.
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