Inductive heating device, aerosol-generating system comprising an inductive heating device and method of operating the same

An inductive heating device configured to receive an aerosol-generating article comprising an aerosol-forming substrate and a susceptor, the inductive heating device being further configured to heat the susceptor when the aerosol-generating article is received by the inductive heating device, the inductive heating device comprising:

• a DC power supply configured to provide a DC supply voltage and a current;
• and
• power supply electronics comprising:
• a DC/AC converter connected to the DC power supply, and
• an inductor connected to the DC/AC converter and configured to inductively couple to the susceptor of the aerosol-generating article when the aerosol-generating article is received by the inductive heating device,
• wherein the power supply electronics are configured to:
• supply power to the inductor from the DC power supply, via the DC/AC converter, for heating the susceptor of the aerosol-generating article when the aerosol-generating article is received by the inductive heating device, the supply of power being provided in a plurality of pulses separated by time intervals, the plurality of pulses comprising two or more heating pulses and one or more probing pulses between successive heating pulses, and
• control a duration of a time interval between the successive heating pulses based on one or more measurements of the current supplied from the DC power supply in one or more of the one or more probing pulses.