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US 12,513,786 B2Granted
Methods and system for induction heating
AssigneeJapan Tobacco Inc.
InventorHideo Kondo
Life of this patent
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Abstract
Various embodiments of the present technology comprise a method and system for induction heating. The system may provide a first induction coil wrapped around a metal cylinder and a second induction coil wrapped around the metal cylinder. The first induction coil may carry a current in a first direction and the second induction coil may carry a current in an opposite, second direction. The currents may be generated in an alternating sequence.
Claims19
An electric cigarette with induction heating powered by a battery as a direct current (DC) power supply, the electric cigarette comprising:
- a first induction coil comprising a first end connected to a positive terminal of the battery at a node;
- a second induction coil comprising a second end connected to the positive terminal of the battery via the node;
- a first switch configured to selectively connect a second end of the first induction coil to a ground potential;
- a second switch configured to selectively connect a first end of the second induction coil to the ground potential,
- a pulse generator configured to generate a first pulse signal and a second pulse signal;
- a first driver configured to connect to the pulse generator and relay the first pulse signal to the first switch;
- and
- a second driver configured to connect to the pulse generator and relay the second pulse signal to the second switch,
- wherein the pulse generator generates the first and second pulse signals to respectively operate the first and second switches in turn.
6 more elements
Dependencies are inferred from the claim text.