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April 17, 2024 ●Added Vector network analyzer page to Technical notes.
Vector network analyzer (VNWA3E) DG8SAQ
Import Line-Filter's VNWA data into EXCEL.
Measure and extract S21 frequency characteristic data of Line-Filter.
Import the extracted data into EXCEL.
Convert Line-Filter's VNWA-s1p data to dB and impedance.
Explanation of how to calculate dB and impedance from extracted VNWA s1p data.
Displays the converted Line-Filter dB data as a graph.
Create a frequency-dB graph of Line-Filter using EXCEL.
Displays the converted Line-Filter impedance data as a graph.
Create a frequency-impedance graph of Line-Filter using EXCEL.
 April 3, 2024 File name:Magnetic-saturation-manual.pdf
A new file has been added.
This file explains the measurement of magnetic saturation,
the situations that tend to occur, and how to improve it.
When magnetic saturation occurs in the transformer core,
there is a high possibility that efficiency will deteriorate,
unstable operation, and element destruction will occur.
 April 1, 2024 Request email has been added to the top page.
Add "What is Ls Lp Cs Cp Rs Rp of LCR meter?" page.
Add "How to use LsLpCsCpRsRp Calculation sheet" page.
 March 27, 2024 Add "Measure inductance using an oscilloscope." page.
Add "Measure capacitance using an oscilloscope." page.
February 26, 2024 Add "Keyword" and "Technical notes" pages.
The "Keyword" page explains technical words.
The "Technical notes" page report on contents other than SMPS design.
February 22, 2024 Add "Weblog" page.
The NEWS on the top page has been deleted and moved to the Weblog page.
February 16, 2024 Add "BLOG Banner"
January 22, 2024 Add "Test data" page.
November 15, 2023 Add "Measure" page.
September 13, 2023 Paid download online shop started
September 11, 2023 Big update ! Test run now

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