<p>A dual-output neutral-point-clamped CLLC resonant converter (DO-NPC-CLLC) based on flying capacitor neutral-point clamping topology is proposed in this paper. By adding two switches, this topology can realize dual-channel output voltage while completely retaining the inherent bidirectional power flow capability of the CLLC resonant converter. In this paper, the structure of the dual-output topology is described in detail, and its working principle under various working conditions is analyzed. Based on first harmonic approximation (FHA), an optimized FHA model is proposed to solve the problem of the low precision in a parameter solution when it works under resonance. In addition, the current path, resonance current characteristics, and soft switching realization capability under different modulation strategies are studied. According to this topological characteristic, a hybrid modulation strategy combining pulse frequency modulation (PFM) and primary-side phase-shift modulation (PSPSM) is proposed. This strategy effectively supports the stable operation of the converter under a variety of working conditions and a wide range of dual output voltages. Finally, the feasibility of the proposed dual-output topology and the effectiveness of the hybrid modulation strategy are fully verified on an experimental prototype.</p>