The power devices of traditional DC/AC converters typically operate in hard-switching mode, resulting in high switch losses and electromagnetic radiation. The resonant technology using passive components can greatly soften the switching process, reduce switch losses, and improve the conversion efficiency and power density of the converter. In order to change the hard-switching characteristics of traditional inverter circuits, a hybrid control LLC resonant half-bridge AC/DC converter based on PFM-PWM (Pulse Width Modulation–Pulse Frequency Modulation) control is proposed by introducing passive devices into the main circuit for resonance. When the output voltage is high, PFM control is used to achieve zero-voltage switching for the power devices throughout the process. When the AC voltage output is in the low half-cycle, PWM control is used to achieve soft switching, while solving the drawback of small voltage gain range in PFM control. Firstly, the topology and principle of the inverter are analyzed, and then a simulation model is built in the Matlab/Simulink environment for simulation verification. Finally, a small power experimental prototype is built, and the simulation and experimental results demonstrate the correctness and feasibility of the topology and control strategy.