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[Data] WTI Blog Power Supply and Power Electronics Edition 2017-2019

Full of our technical know-how, such as 'Power Equipment Lifespan Verification' and 'DC-DC Converter Design: Key Points in Power Design'!

This document summarizes the WTI blog from Wave Technology Co., Ltd., which is engaged in "development and design promotion business" to solve the shortage of engineers, covering the years 2017 to 2019, focusing on power supplies and power electronics. It includes topics such as "Differences between CMOS [low-voltage MOSFET] and power semiconductors," "Verification of the lifespan of power supply equipment," and "We tried to improve the efficiency of power supplies using SiC devices." Please take a moment to read it. [Contents (excerpt)] ■ 2017.5.16 Understanding principles and fundamentals is important for engineers! ■ 2017.9.5 The unsung hero of solar power generation systems – What is a power conditioner? ■ 2017.9.19 Differences between CMOS [low-voltage MOSFET] and power semiconductors ■ 2017.12.5 Development of devices supporting the electrification of automobiles ■ 2018.3.13 Pay attention to inductance that does not appear in circuit diagrams *For more details, please refer to the PDF document or feel free to contact us.

  • Other contract services
  • Embedded system design service
  • Circuit board design and manufacturing

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[Information] It's too late to ask now! About power supplies

Useful information about development design! We have published a wealth of know-how shared by our engineers.

This document introduces questions and answers regarding power supplies. It includes know-how shared by our engineers on topics such as "Power Electronics Design: Switching Devices," "Diode Selection," "IGBT Selection," "MOSFET Selection," "Electrolytic Capacitor Selection," "Film Capacitor Selection," and "Reactor Selection." It is a book that provides easy-to-understand explanations through characters. 【Contents (Excerpt)】 ■#021 Power Supply - Power Electronics Design (Switching Devices) ■#022 Power Supply - Power Electronics Design (Diode Selection) ■#023 Power Supply - Power Electronics Design (IGBT Selection) ■#024 Power Supply - Power Electronics Design (MOSFET Selection) ■#025 Power Supply - Power Electronics Design (Electrolytic Capacitor Selection) *For more details, please refer to the PDF document or feel free to contact us.

  • power supply
  • Other power sources

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[Data] WTI Blog Evaluation and Experimentation Edition Fiscal Year 2020

"Evaluation and analysis methods for BGA packages" and other know-how of our technology are packed full!

This document summarizes the WTI blog of Wave Technology Co., Ltd., a "development and design promotion business" that addresses the shortage of engineers for the fiscal year 2020, focusing on evaluation and experimentation. It includes topics such as "Evaluation with Curve Tracers," "Evaluation and Testing Items for Switching Power Supplies," and "How to Continue Using PC98." Please take a moment to read it. [Contents (excerpt)] ■2020.4.14 Reliability Testing - Ensuring Safety Under Various Conditions ■2020.10.23 Evaluation of Power Conditioners - Various tests including JET certification, conversion efficiency verification, rated testing, lightning surge, etc. ■2020.10.26 Evaluation with Curve Tracers - Is Manual Operation Troublesome? Then Automate It! ■2020.10.27 USB and Compliance Testing ■2020.11.5 Required Functions for Power Conditioners (Part 1) *For more details, please refer to the PDF document or feel free to contact us.

  • Other semiconductors
  • Evaluation Board

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[Data] Shirutoku Report No. 64 #Power Semiconductor (1)

How should switching evaluation be conducted? Explanation using diagrams and photos.

★★Shirutoku Report: Useful Information You Should Know★★ This report introduces the switching evaluation of power semiconductors such as power devices and power modules. The ideal switching operation is a state where there is no delay time in current and voltage when switching ON/OFF, meaning there is no occurrence of power loss. However, during the switching operation of power devices, some delay time inevitably occurs. Our company has engineers with expertise in switching evaluation, so if you require evaluation of various power devices, please feel free to consult us. 【Contents】 ■ IGBT Module Measurement Circuit Examples ■ IGBT Module Measurement Environment Examples *For more details, please refer to the PDF document or feel free to contact us.

  • Capacitor
  • Other semiconductors

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[Data] Shirutoku Report No. 65 #Power Semiconductors (2)

I will talk about a method to quantitatively verify the magnitude of circuit inductance.

★★Shirutoku Report: Useful Information You Should Know★★ In this report, we will introduce a method to quantitatively confirm the magnitude of circuit inductance. When improving the measurement environment for switching evaluation of power semiconductors, it is sometimes necessary to reconsider the wiring. However, without a quantitative understanding of the magnitude of the circuit inductance in the measurement system, improvements can be difficult. By using the measured circuit inductance values during simulations, results closer to the actual measured waveforms can be obtained. 【Contents】 ■ Methods for Improving Circuit Inductance ■ IGBT Module Measurement Circuit Example ■ How to Confirm Circuit Inductance *For more details, please refer to the PDF document or feel free to contact us.*

  • Capacitor
  • Other semiconductors

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