Wave Technology List of News Articles

This document introduces antennas, which are essential for communication devices. It includes topics such as "Antennas used in wireless communication devices," "Grounding (GND) is important for antennas!" and "Be careful with the circuit board when using patch antennas!" You can find more details in related products and catalogs.

This report introduces a board called M5stack, which is equipped with a Wi-Fi module called "ESP32," along with practical examples of its use. The process is super simple: search for Wi-Fi signals and display the acquired data on the screen. That's all there is to it. Please take a moment to read it. 【Contents】 ■ How to make a simple Wi-Fi checker ・ Recipe

The "power supply" is an essential component in electrical circuits. The "power supply" has functions such as converting voltage levels and converting between alternating current and direct current, but I would like to talk about the frequently used "DC-DC converter." A "DC-DC converter" is a device that converts direct current into direct current at different voltage levels. While detailed design methods can be referenced in specialized books, this report will introduce key points for beginners to consider when designing. [Contents] ■ Key points in circuit design

I will quickly talk about the metal enclosures I am currently involved in developing. There are various processing methods for creating metal enclosures, and the design techniques change depending on the processing method. This report briefly introduces the representative processing methods and design techniques for metal enclosures, so please take a moment to read it. [Contents] ■ Press bending processing ■ Deep drawing processing ■ Die casting

What kind of failures do you think of when it comes to semiconductor failures? First, you might think of damage caused by static electricity, right? Of course, optical semiconductors can also fail due to static electricity, but they can also fail due to light itself. In this report, we will explain a little more about failures caused by light. [Contents] ■Failures caused by light

By changing the semiconductor material from Si to SiC (silicon carbide), the breakdown voltage of Schottky Barrier Diodes (SBD) has improved, making it possible to use them in the DC/DC converters of PCS. While the performance improves with SiC, it has not been widely used until now due to cost issues. However, in the past year or two, the cost issues have also improved, leading to an increase in usage opportunities. This report will briefly explain the types and characteristics of diodes. [Contents] ■ Types and characteristics of diodes

The circuit board is essential for electronic devices, but even those who have been responsible for circuit design and have always handled circuit boards for many years may surprisingly not know the composition (types) of circuit board data, so we are introducing it in this document. We include an overview of the flow from circuit board design to manufacturing, as well as the names and extensions of major circuit board design CAD software. You can find more detailed information in related products and catalogs.

This report introduces the "characteristic impedance (wiring impedance)" of the substrate. With the recent increase in the speed of digital signals, the design of digital circuit substrates requires not only lumped constant circuits but also the concept of distributed constant circuits, making it necessary to consider the characteristic impedance of the substrate in the design. So, how do we determine the characteristic impedance of the substrate? [Contents] ■ Characteristic impedance of the substrate

This document introduces the utilization of "interface circuits" that make measurements more convenient, which our Custom Technology Department is working on. It includes images of the configuration of interface circuits (analog isolation circuit boards) and examples of our initiatives, as well as the provision of services based on custom measurement keywords. You can find more details in related products and related catalogs.

When designing for waterproofing, many people tend to focus primarily on the gasket parts of the enclosure. In fact, the screw areas require even more attention than the main waterproof sections. Therefore, in this report, we discuss the screw structures in waterproof design and the points to consider that are frequently asked about. We provide more detailed information from related products and catalogs.

In WTI's circuit board design, we conduct various types of board designs, including large-scale circuits, multilayer wiring boards, high-density mounting boards, and flexible printed circuits (FPC). One of the most requested designs is for small, high-density mounting boards used in IoT devices and wearable devices. To reduce the size of products and lower the cost of circuit boards, it is common to adopt BGA packages for microcontrollers and FPGAs. In this report, we discuss "BGA circuit board design." You can find more details in related products and catalogs.

In this report, we will discuss the analysis methods for "BGA packages." "BGA" stands for "Ball Grid Array," which is a type of package for integrated circuits (ICs). In simple terms, it is a surface mount package that has electrodes (lands) on the substrate, with solder balls formed on top to connect to the electrodes on the package side. You can find more detailed information in related products and catalogs.

In this report, I would like to introduce the automatic control of measurement devices related to optical devices. For the functional verification of optical devices, multiple characteristics such as optical output, light reception sensitivity, and frequency characteristics are measured and evaluated. To evaluate these characteristics, a variety of measurement devices are used, including DC power supplies, temperature controllers, and optical component analyzers. You can find more details in the related products and catalogs.

This report will focus on the response to the discontinuation of parts using "FPGA." It is not about replacing the parts themselves with "FPGA," but rather introducing a design that implements measures for the discontinuation of LCD panel production using "FPGA." If you need designs such as "I want to perform data processing for high-speed serial communication with FPGA" or "I want to process signals from sensors with FPGA and transfer data," please feel free to contact us. You can find more details in related products and catalogs.

★★Shirutoku Report: Useful Information You Should Know★★ Suddenly, do you all know about "reliability testing"? In simple terms, it is a collective term for various tests that evaluate the reliability (performance, durability, safety, failure rate, etc.) of a product. The main objectives are to confirm whether the performance meets the design specifications and to assess whether it meets market quality requirements. In this report, we will introduce one of the durability tests for power devices, known as the "power cycle test." For more details, please refer to related products and catalogs.

★★Shirutoku Report: Useful Information You Can Benefit From★★ The most challenging aspect I encountered while developing programs was the implementation of algorithms. There are many interesting algorithms, and recently I had the opportunity to touch on Q-Learning, which is one of the reinforcement learning methods related to machine learning. I created a program (Cheese Puzzle Simulator) to demonstrate it. Q-Learning is one of the algorithms in reinforcement learning and is utilized in various fields, from autonomous driving to fintech. In this report, I would like to briefly introduce the Q-Learning algorithm. For more details, please refer to related products and catalogs.

★★Shirutoku Report: Useful Information You Can Benefit From★★ When you want to check characteristics while changing a certain parameter, "automatic measurement" is convenient. In this report, I would like to briefly explain how to perform "instrument control" necessary for automatic measurement. For more details, please refer to related products and catalogs.

★★Shirutoku Report: Useful Information You Can Benefit From★★ In daily life, we don't often think about it, but when an object changes temperature, thermal expansion and contraction occur. The magnitude of this expansion and contraction varies depending on the properties of each material (coefficient of linear expansion). In this report, we will discuss the thermal stress that arises from this thermal expansion and contraction. For more details, please refer to related products and catalogs.

This report introduces the consideration of component placement. It is rare to use the circuit board in isolation; more often, it is housed in a case or connected to other devices. In the component placement consideration, we first place structural components that cannot be moved, such as connectors and switches. Other components are then arranged while paying attention to structural placement constraints (height limitations of components, prohibited areas for placement and wiring). You can find more details in related products and catalogs.

When developing a new product, many people may have experienced the dilemma of whether to use a microcontroller or an FPGA. Additionally, a common conversation is whether to process with software or hardware. In this report, we will discuss the key points of system design. You can find more details in related products and catalogs.

In this report, I will discuss the key points when creating embedded software (firmware), specifically about ensuring real-time performance: "creating it to flow continuously." At WTI, we receive numerous contracts for embedded software development from our customers, and we develop with a focus on reliability and quality, including the principle of "flowing continuously." If you are having trouble with software development, please contact WTI. You can find more details in related products and catalogs.

In the Software Design Department, we create a lot of embedded software to control dedicated circuit boards. In this report, I will discuss the key points to consider when creating embedded software. The key point when creating embedded software is to ensure real-time performance: it should be created to "flow continuously." You can find more details in related products and catalogs.

In the power supply design course, there are various circuit types, but if classified broadly, most of them fall under the category of switching power supplies. In this report, I will discuss the characteristics of switching power supplies. You can find more detailed information in related products and catalogs.

We mainly engage in the design of enclosures for outdoor installation products. Through this work, we often hear customers say, "It's hot, what should I do?" In this report, we will answer what can be done in such cases. You can find more details in related products and catalogs.

To create IoT devices with wireless communication capabilities from scratch, there are several technically challenging issues to address. One option to more easily achieve wireless communication functionality is to mount a wireless module on the circuit board. This report will introduce wireless modules. You can find more detailed information in related products and catalogs.

We are offering an online course titled "Fundamentals of Power Devices." In response to customer feedback such as "I want to improve my skills since I have more time at home" and "I can't understand even when studying on my own," we provide both on-demand courses and live streaming courses. You will understand the structure and operating principles of power devices, as well as key points from data sheets. Additionally, we offer quizzes and provide detailed explanations from the instructors. If you have any requests regarding online courses other than the ones mentioned above, please feel free to consult us. You can find more detailed information in related products and catalogs.

We would like to introduce our "Wireless Power Transfer Demo Unit." A brightness sensor, temperature sensor, and receiving circuit are installed on a rotating table, allowing for wireless power transfer from the transmission circuit to the receiving circuit. The transmission circuit collects sensor information simultaneously with the wireless power transfer. The sensors can be replaced with various types, making it possible to install them in locations that were previously unfeasible. You can find more details in related products and catalogs.

We would like to introduce our "High-Frequency Power Board." Using our wireless power evaluation high-frequency power board and reference antenna, you can confirm the operation of wireless power transmission. The high-frequency power board is capable of a maximum output of 50W, and with the reference antenna, it can operate with a load of up to 35W at a power transmission distance of 40mm. We can accommodate custom antenna designs according to your requirements. You can find more details in related products and catalogs.

We would like to introduce our "Wireless Power Transfer Demo Unit." The receiving circuit is installed underwater, and wireless power is transmitted through glass from the power transmission circuit to the receiving circuit. The power transmission circuit collects sensor information simultaneously with wireless power transfer. This can be applied to monitoring the vacuum level of a vacuum chamber, as well as temperature monitoring inside a constant temperature bath. You can find more details in related products and catalogs.

We are offering our "Radio Wave Anechoic Chamber Rental Service" at a special campaign price to celebrate its 5th anniversary. This rental service includes the "Simple Radio Wave Anechoic Chamber" and the "Electromagnetic Wave Visualization System." We also have a variety of noise countermeasure equipment, such as the "Electromagnetic Wave Visualization System" and the "Noise Terminal Voltage Measurement System." We encourage you to consider applying for this opportunity. 【Campaign Details】 ■ Price: 5,000 yen per hour (tax included) * An additional equipment training fee of 3,000 yen (tax included) is required. This fee is waived for customers who have used our services within the past year. ■ Options - Electromagnetic Wave Visualization System - Δ-type Power Supply Impedance Stabilization Circuit Network * For more details, please refer to the PDF document or feel free to contact us.