Although magnetic components such as electronic transformers and inductors may seem insignificant, they play an indispensable role in products such as new energy vehicles, LED power supplies, and photovoltaic inverters. Generally speaking, electronic transformers play a role in transforming, filtering, and storing energy in products, while inductors solve EMI problems, electromagnetic compatibility, and so on. New energy vehicles In new energy vehicles, magnetic components such as electronic transformers and inductors are mainly used in the electronic part of the vehicle. Compared with traditional automotive electronics, new energy vehicle electronics use more magnetic components such as electronic transformers and inductors, because traditional cars do not use high-frequency capacitors, inductors, or similar frequency converters except for multimedia and high-frequency signal processing. New energy vehicle electronics require magnetic components to pass experimental tests such as anti-interference, static electricity, durability, high and low temperature, vibration, and EMC (tests related to automotive electronic components). EMC will specify the requirements for the space, quality, size, etc. of magnetic components, and the specific parameters and power range depend on the EMC compliance level of the product. The standards that magnetic component manufacturers should meet for their products mainly include the following requirements: firstly, the inductance of the product should achieve error accuracy; Can the second current meet the requirements? Some inductors are relatively large, so their current will also be relatively high. If done well, the product's wear and tear will be small; The third set of material and process requirements, such as material requirements for copper wire and process requirements for winding. Drive power supply The magnetic components required for LED driver power supplies mainly include transformers, common mode inductors, power inductors, etc. These components have higher quality requirements than traditional power supplies because LED lights require higher temperatures than ordinary lights. Transformers play a role in voltage transformation in power supplies, and inductance is the solution to EMI issues, so magnetic components are very important, with their basic usage accounting for between 1/4 and 1/5 of the entire power supply. LED driver power requires magnetic components such as electronic transformers and inductors to have small volume, good performance, high stability, and low losses. The key to magnetic components such as electronic transformers and inductors is to optimize the magnetic core and increase its density, parameters, and other requirements. Photovoltaic inverter Inverters play an important role in solar photovoltaic power generation systems, and magnetic components are the fundamental components of inverters. The control of power supply and grid connection in the inverter will use electronic transformers, as well as related magnetic components such as sensors. The usage of these magnetic components in photovoltaic inverters will reach about 20%. They are mainly used in inverters, playing a role in filtering, transforming, electromagnetic compatibility, and so on. Photovoltaic inverters have requirements for the conversion efficiency, volume, weight, and cost of magnetic components, as well as important performance factors such as heat generation and losses. As a manufacturer, it is required that the components achieve high efficiency, low loss, low noise, long lifespan, insulation and voltage resistance, and the volume should be as small as possible. As users, we hope that the lower the cost, the better, and the higher the efficiency of use, the better. If Chinese magnetic component manufacturers want to produce better products, firstly, they need to make efforts in technical theory research, new material application, design level, and other aspects; The second aspect is to strengthen the process, including product consistency and stability. (The article is selected from Baidu Baike)
