
Radiofrequency ablation devices (used for pain and tumor treatment) must meet GB 9706.1, YY 0505 (domestic), and IEC 60601-1-2 (international) EMC standards. Their core component is a radiofrequency power generator, operating at hundreds of kHz and outputting tens to hundreds of watts of power. Standards strictly limit the emission levels of the fundamental and harmonic frequencies through power lines and space radiation to prevent interference with other equipment (e.g., patient monitors). Simultaneously, their power control loop and temperature/impedance monitoring circuitry must remain stable under strong self-contained radiofrequency fields, ensuring precise and controllable output power.