The management of conducted electromagnetic interference (EMI) in electric vehicles (EVs), particularly within DC-DC converters, presents a major challenge in ensuring both performance and compliance with electromagnetic compatibility (EMC) standards. Active techniques such as soft switching (Zero Voltage Switching, ZVS, and Zero Current Switching, ZCS) and pseudo-random modulation are effective in reducing EMI. Soft switching minimizes voltage and current gradients, thereby reducing switching losses and EMI, although it adds complexity to the circuit. Pseudo-random modulation disperses harmonic energy across a wide frequency spectrum, thus mitigating EMI peaks. However, these methods require complementary passive solutions for optimal EMI management, such as EMI filters, snubbers, shielding, and improved grounding. These passive devices block conducted noise and isolate sensitive components. Optimized PCB design is also crucial in reducing EMI.A combined active-passive approach, along with future research into adaptive control algorithms and machine learning, could enhance the dynamic optimization of EMI reduction techniques, ensuring reliable performance in EV power systems while meeting stringent EMC requirements.