Recently, the annual plum rain season has arrived in the south. The floor at home is wet, clothes are still not dry after a week of hanging, and even the walls are beginning to grow mold... At this time, we urgently need a dehumidification device to solve the various problems caused by "humidity". The following new dehumidification device that integrates TEC technology - semiconductor dehumidifier, is becoming a new choice for people's dehumidification. Today we will talk specifically about its principles, advantages and common application scenarios. 1. Working principle of semiconductor dehumidifier The working principle of semiconductor dehumidifiers is based on the Peltier effect (see TEC Science Classroom Issue 1 for details) : When the semiconductor dehumidifier is powered on, the current passes through the semiconductor material, forming a diff...

As people's pursuit of quality of life continues to improve, more and more families choose to use fireplaces for heating in winter. At this time, placing a small unplugged fan next to the fireplace can make the indoor warmth much higher. This unplugged fan is called a "fireplace fan", and this warming phenomenon is essentially due to "temperature difference power generation".   1. Thermoelectric power generation principle: Seebeck effect The term "thermoelectric power generation" may sound advanced at first, but it is no longer a new technology. As early as the 19th century, German physicist Thomas Johann Seebeck discovered the principle of thermoelectric power generation - the "Seebeck effect". The Seebeck effect is the first thermoelectric effect, which refers to the phenomenon that when there is a temperature difference between the junctions of two differe...

Hello everyone, today we will mainly talk about a very critical but easily overlooked topic in the new energy field: the heat dissipation problem of IGBT modules. The "Made in China 2025" issued by the State Council clearly pointed out: "We must promote the development of new energy, smart grids and other fields, and make breakthroughs in key technologies such as high-power power electronic devices." As a core component of a variety of power electronic equipment such as photovoltaic inverters, electric vehicle electronic control systems, and industrial power supplies, the performance of IGBT (insulated gate bipolar transistor) depends to a large extent on how well it dissipates heat. So what are the mainstream heat dissipation methods for IGBT modules at present? Is there a better alternative? Let’s continue looking down. ▲IGBT (Insulated Gat...

Hello everyone, today I’m going to introduce a technology combination that sounds a bit “hardcore”: thermoelectric cooler (TEC) + photodetector. What is a Photodetector? What is a semiconductor refrigerator? Why do we need to use semiconductor coolers and photodetectors together? Let’s take a look at it together next. What is a photodetector? Simply put, a photodetector is a device that converts light signals into electrical signals. You can think of it as the "eye of light", responsible for sensing the presence and intensity of light. It has a wide range of applications, including fiber optic communications, cameras, laser printers, medical imaging, satellite remote sensing, space exploration, and so on. It can be said that as long as there is light, it is almost indispensable.   Photodetectors are very "afraid of heat" Although photodetecto...

Welcome to TEC Science Classroom! In this issue, we will give a detailed introduction to the structure, advantages and classic application scenarios of micro thermoelectric coolers.   What is a micro thermoelectric cooler? A micro-thermoelectric cooler is a small temperature control device based on the thermoelectric effect that can achieve precise heating or cooling functions. It is suitable for small electronic devices with limited space and extremely high temperature control requirements. Although the micro thermoelectric cooler is small in size, its structure is not simple. It mainly consists of two key parts:   1. Thermocouple pair (PN junction) The basic unit of TEC is a thermocouple pair composed of N-type and P-type semiconductor materials. When direct current passes through, the electrons in the N-type semiconductor and the holes in the P-type s...

Welcome to TEC Science Classroom! In this issue, we will introduce several common heat dissipation methods of thermoelectric coolers (TECs). Why do thermoelectric coolers need heat dissipation? Maybe you are curious, isn't the thermoelectric cooler used for cooling? Why is heat dissipation needed? This is closely related to its application principle: Thermoelectric coolers transfer heat through the Peltier Effect. When current passes through the junction of two different conductors, heat is absorbed or released. One side of the cooling fin becomes colder and the other side becomes hotter. In order to ensure the cooling effect, the heat on the hot side must be effectively dissipated, otherwise the heat accumulation will affect the cooling efficiency and even damage the equipment. Therefore, in the development process of thermal design, we first nee...

1. What is TEC reliability testing? TEC reliability testing refers to a testing method that comprehensively evaluates thermoelectric semiconductor cooling products by simulating actual usage conditions and environments. Its main purpose is to ensure that TEC products can operate stably and for a long time under various actual environmental conditions and meet the expected performance requirements.Through reliability testing, companies can discover potential product defects in advance and make timely improvements and optimizations, thereby improving product reliability and enhancing their market competitiveness.   2. What does reliability testing include? 1. Environmental adaptability test Including temperature testing (high temperature, low temperature, temperature cycle), humidity testing, vibration testing and shock testing ; this test is us...

TEC refrigeration clothing (air-conditioned clothing/water-cooled clothing) is a special type of clothing that cools the human body in high-temperature environments. It achieves this function through an internal cooling system. The semiconductor cooling sheet is the key component in its cooling system. Next, this article will focus on introducing the application principles, advantageous features and application scenarios of this type of special clothing.   1. Application of TEC Refrigeration Sheets in Air-conditioned Clothing Air-conditioned clothing refers to garments that cool the human body surface through air circulation and semiconductor refrigeration technology. Its built-in refrigeration system is composed of TEC refrigeration plates, temperature control components, fans and other parts. one.TEC refrigeration sheetThe refrigeration plate, as the core co...

Summer is almost here. In today's high temperature has become a global challenge, people's demand for cooling equipment is no longer limited to "use", but the pursuit of "easy to use, healthy and sustainable". However, traditional fans are limited by size, energy consumption and noise, and it is difficult to meet the cooling demand in mobile scenarios. The emergence of TEC fans has brought more high-quality and reliable cooling options for people.   How TEC fans work The working principle of the semiconductor refrigeration sheet is based on the Peltier effect (see TEC science Lesson # 1) : When a direct current flows through a module composed of semiconductor materials such as bismuth telluride, heat is rapidly transferred from the cold end to the hot end, creating a significant temperature difference. This process does not require compressors, coolers or mechanic...

San Francisco driverless TAXI first experience With the popularity of driverless technology around the world, many countries such as the United States, the United Kingdom, South Korea, and Singapore have begun to try to provide driverless taxi services in different pilots.Today, our colleagues came to San Francisco, USA, where they completed their first experience of driverless TAXI. First, we booked the ride through the mobile App. A few minutes later, the reserved car arrives at the designated place on time. We can see that the exterior body is equipped with advanced sensor devices, which are key components for environmental awareness and safe driving.Then, we still open the door through the App. After boarding the car, the central control screen displays the welcome message and itinerary overview, just click the "Start itinerary" button on the touch scr...

In recent years, with the rapid development of the field of new energy vehicles, the corresponding vehicle hardware and software facilities and user driving demand are also growing simultaneously. In order to meet these growing needs and improve the overall performance and user experience of vehicles, the application of semiconductor refrigeration (temperature control) technology in the field of automotive has become particularly important.Next, this paper will focus on the relevant applications of semiconductor refrigeration technology in the current and future automotive field, mainly divided into the following directions:In-vehicle LiDAR, in-vehicle refrigerators and hot and cold cup holders, seat heating/cooling systems, battery temperature management, and temperature control in the field of in-vehicle intelligent driving.   1.car Lidar At present, the mainstream auton...

4.1 -4.3 San Francisco, USA FerroTec agrees with you about OFC 2025 You are cordially invited to come Booth #4330!   The 50th American Optical Communications Exhibition (OFC 2025) will be held at the Moscone Center in San Francisco, California in 4.1-4.3.OFC is expected to attract more than 13,500 professionals and 670 exhibitors, covering the entire optical communication industry chain, focusing on 1.6 terabit technology, artificial intelligence, quantum network and data center innovation and other cutting-edge breakthrough technologies. FerroTec TE will present TEC products in the field of optical communications at this exhibition. As a leading provider of thermal solutions in the industry, FerroTec applies thermoelectric cooling technology to key components of optical communication such as lasers, photodetectors and optical modules, ensu...