AEROSOL-GENERATING DEVICE AND AEROSOL-GENERATING SYSTEM WITH INDUCTIVE HEATING SYSTEM WITH EFFICIENT POWER CONTROL

摘要

There is provided an efficient system for providing power to an inductor and susceptor in an inductively heated aerosol-generating device. The aerosol-generating device comprises: one or more DC power sources; a load network comprising an inductor and a capacitor connected in series; first drive circuitry connected to the one or more DC power sources and connected across the load network and configured to provide a first voltage drop across the load network; second drive circuitry connected to the one or more DC power sources and connected across the load network and configured to provide a second voltage drop across the load network, the second voltage drop being in an opposite direction to the first voltage drop; and a controller connected to the first and second drive circuitry and configured to control the first and second drive circuitry so that both the first and second voltage drops are provided across the load network periodically and so that the second voltage drop is not provided across the load circuit simultaneously with the first voltage drop. The arrangement of first and second drive circuitry alternately supplying voltage drops in different directions provides a time varying voltage and allows for efficient use of power supplied by the power source or sources.