Q1: What is the working principle of an isolated DC converter?
The working principle of an isolated DC converter is to convert the input voltage into a high-frequency AC signal through the high-frequency transformer, and then rectify and filter it into a stable output voltage after magnetic coupling, so as to achieve electrical isolation between input and output. This design can not only transfer energy but also prevent high voltage or noise interference from entering the output side, improving system safety and reliability. It is usually used in situations where control circuits need to be protected and electrical isolation is required, such as medical equipment, industrial automation systems, power systems, or multi-module applications with different signal ground potentials. Using DC-DC isolated converters can effectively improve anti-interference capabilities and enhance system stability and safety.
Q2: When to use isolated DC converters?
Isolated DC converters are usually used in applications with clear requirements for safety, system stability or electrical isolation, such as protecting the safety of operators and patients in medical equipment, preventing the control end from being interfered by the high-voltage side in industrial automation systems, reducing ground loop current and electromagnetic interference in communication equipment, and ensuring that each part does not affect each other in systems where multiple modules have different potentials or require independent power supply. In short, as long as the system involves high and low voltage isolation, high anti-interference requirements, or non-shared electrical ground, you should consider using a DC-DC converter with isolation.