1. **Power supply module: **Used to design stable and efficient power supply modules, such as switching power supplies, DC-DC converter, etc. 2. **motor driven: **In motor control systems, it can be used to design motor drive modules to provide efficient power management and control. 3. **LEDillumination: **existledlighting systems that can be used in designleddriver, ensuring efficient power management and brightness control. 4. **Battery management: **Used to design battery charge and discharge management systems to ensure the effective use and safety of batteries.