Experts unanimously agreed that the only way to solve EMI (Electromagnetic Interference) problems is to secure, train, and manage experienced talent.

When E4DS News conducted an expert interview last September on the possibility of EMI related to defects in electrical components of some companies, all of the experts concluded that EMI cases can occur due to various factors in various environments, and that it is difficult to simply call a case of electrical component failure an EMI problem.

They also agreed that securing experienced professionals is essential to solving EMI problems.

On August 20th, regarding the e4ds news article titled 'Electric vehicle electrical components 'EMI' emergency', we asked several experts, and the result was that most designs of electrical components in automobiles are shielded with EMI in mind, so there are almost no cases of EMI problems. In the case of electrical components, there are various environments.There were various opinions, including that it could occur with a very rare probability in certain environments, such as in abnormal situations such as external shocks or internal voltage instability.

On the other hand, there was a consensus that internal and external factors, such as malfunctions at certain points in some regions, noise from black boxes, electric vehicle motors, noise from PCB patterns, power instability, and external shocks, should be reviewed.

In relation to this, it was revealed that domestic parts manufacturers are thoroughly preparing for EMI shielding through EMC (electromagnetic compatibility).

Accordingly, it is known to be extremely difficult to find defects in a product when a suspicious case occurs.

Both internal and external environmental factors must be examined, but because the environmental factors that each component faces are different, it is impossible to determine the cause in a laboratory.

Experts said that identifying and resolving EMI is very difficult, as it is like homework for engineers who handle electronic products.

In particular, he said that even if testing is conducted at testing institutes located across the country to find out the cause of the product, it will only ultimately confirm that the product has a problem with electromagnetic waves, and it will be difficult to find a solution in the future.

The reason was that there was a severe shortage of experts in resolving domestic EMI issues.

This is because it is impossible to train EMI experts through short-term training.

In order to train EMI experts, education is possible in the 3rd or 4th year of undergraduate courses, but most specialized education is provided in graduate courses, and even in these cases, since they do not have access to actual field cases, they need to accumulate many years of practical experience to achieve a certain level of expertise.

This requires management of experienced personnel, but most of them are elderly. It is known to be difficult to manage due to the back, and it is said that there is a shortage of expert pool.

Even if small and medium-sized businesses want to meet experts, they don't know how to do it and it's not easy to meet them.

The government is providing consulting services through the Technology Doctor System and the Radio Promotion Association, but small and medium-sized enterprises are not well aware of it, so more promotion is needed.

Experts agree that EMI problems may become more frequent in the future.

Basically, compared to internal combustion engine vehicles, electric vehicles are more sensitive to the possibility of damage caused by electromagnetic waves because the application of batteries and motors related to electromagnetic waves increases and the applied voltage and current also increase significantly.

In addition, it was analyzed that preparations and strong components are needed for situations where various wavelengths are mixed, such as extremely high transmission speeds, communication between components, and communication between cars and the outside world due to high-voltage electric vehicles and autonomous driving.

Experts predicted that competition among countries in industrial protection and electronic components will become fiercer in the future, and agreed that significant investment should be made in securing experienced engineers to meet this demand.