How to meet the CISPR and IEC standards for intelligent controllers?

To ensure that the PAC (Power Controller Acoustic) passes CISPR and IEC tests, a targeted design is required. For CISPR 11/32 radiated emission testing, the enclosure shielding, cable shielding, and PCB layout need to be optimized, and a spectrum analyzer should be used for pre-scanning to ensure that emissions are below the limits in the 30MHz-1GHz range. For IEC 61000-4 series immunity testing, port protection and filtering, such as ESD protection, surge protection, and common-mode inductors, need to be added.

Pre-testing should be conducted before the actual test, and any problems found should be rectified promptly. During formal testing, the environment should be set up according to the standards, such as using an anechoic chamber and test generator. The compliance requirements are: emission tests should be at least 6dB below the limit, and functionality should not be lost during immunity tests. With proper design, the PAC can obtain CE, FCC, and other certifications.