This is an article about how I used CAD to create a board pattern when producing a printed circuit board.

This is an article where you can see how the board pattern that I created was reviewed by a senior colleague when I was producing a printed circuit board, and how the board pattern was modified.

This article examines the changes that occur due to pattern layout using two types of board: one before pattern review (white) and one after pattern review (black).

When we measured the efficiency, we found that there was a sudden drop in efficiency in some parts of the pre-review board (white board), so this article looks at the cause of this.

This article delves into why there is a difference in efficiency between two boards: one before pattern review (white) and one after pattern review (black).

This article introduces the types of DC/DC converters, which are power ICs.

This article introduces how to select DC/DC converters and inductors, which are peripheral components.

This article introduces the difficulties and things I learned when designing a DC/DC converter board.

This article introduces the difficulties and points to be careful about when implementing a DC/DC converter.

This article introduces how the device works by actually evaluating it, and the need for a setting method that suits the purpose when evaluating it.

The final article is a bonus article that introduces some of the other things I worked on during my internship.

This article introduces how to consider specifications when creating a DC/DC converter circuit.

This is an article that explains how to prepare a DC/DC converter circuit before implementing it.

This article describes how to actually implement a DC/DC converter circuit and perform a test run.

This article covers how to actually assemble and run a line tracing car.

This is a story about a failure regarding the anode and cathode of a diode.

This is a story about a failed attempt to make a power supply using a universal board.

This is a story of failure where the finished product did not function as expected due to interference between parts.

Using the LT8609A as an example, this article provides an overview of the features of power supply ICs and the functions of each pin.

We measure the LT8609A evaluation board and a homemade board with an oscilloscope and explain what kind of waveforms we should aim for.

It provides a detailed explanation of the basic points of layout design and the problems with the boards that have been created.

This article introduces the power supply design that repeatedly failed during the development of the maze escape machine, from component selection to implementation.

This video introduces the sensors and motors used in the construction of the maze escape machine.

This video introduces the difficulties encountered in developing a maze escape machine before it could actually run.

LTspice Basics <Free>

Part 1:
As the basics of LTspice, you will learn how to set up the tool bar and control panel, how to run simulations using RC circuits, and analysis commands.

part 2:
You will learn how to generate a BOM of a power supply circuit, how to calculate efficiency, and how to evaluate it, starting with a simple simulation execution method using a sample circuit.
We will also explain how to add parametric analysis and diode models.

・ Those who have never used LTspice or those who are just starting to use it

・Those who use Analog Devices products

・ Those who want to obtain information on the latest Analog Devices products

We will explain the points of DC/DC converter circuit design using a power supply IC from Analog Devices.

This section explains in an easy-to-understand manner how to select a power supply IC and how to select peripheral constants. In addition, we will explain the important points about the layout of the board, which is the most important in power supply circuit design.

Even those who have never started power supply circuit design can participate.

・Those who are new to DC/DC converter circuit design

・Those who use Analog Devices products

・ Those who want to obtain information on the latest Analog Devices products

Recently, when I support customers, I often see high-density mounting boards with FPGAs with large internal circuits and only power supply circuits. As a result, the heat-generating FPGA and the power supply circuit are placed close to each other, and the entire board heats up, making thermal design difficult. In order to bring out the full performance of the product and maintain its reliability, it is very important not to rely only on the case design, but on the thermal design on the board.

In this seminar, we will introduce how to estimate the junction temperature using θJA and θJC, and the pitfalls of thermal calculation that have occurred recently.

• ・Those who want to know how to calculate the junction temperature
• ・Those who want to know how to measure junction temperature
• ・Those who want to practice heat calculation
• ・Those who want to know examples of problems caused by heat