To meet the demand for miniaturization and long life of electromagnetic switches, an electrolytic capacitor-less driver for the switches' actuators is proposed. In the driver, a resistor, a ceramic capacitor, and a diode are used as the rectification filtering circuit instead of the electrolytic capacitor, which can greatly reduce the driver's body and prolong the driver's life. To evaluate the effect of the driver, the transfer function of the driver under the AC source is established based on the state space averaging method and the Fourier description of the fluctuating DC bus voltage. The proportional integral control strategy, the feed-forward control strategy, and the model prediction strategy are compared. It is clarified that the model predictive control strategy can suppress the influence of voltage fluctuation and make the excitation current stable. The simulation result verifies the effectiveness of the driver. This driver is beneficial for both the miniaturization and low-power operation of the electromagnetic switches.