US 11,956,878 B2
Methods and system for induction heating
Hideo Kondo, Oizumi-Machi (JP)
Assigned to JAPAN TOBACCO INC., Tokyo (JP)
Filed by JAPAN TOBACCO INC., Tokyo (JP)
Filed on Oct. 23, 2019, as Appl. No. 16/661,050.
Claims priority of provisional application 62/877,928, filed on Jul. 24, 2019.
Prior Publication US 2021/0029785 A1, Jan. 28, 2021
Int. Cl. H05B 6/04 (2006.01); H05B 6/10 (2006.01); H05B 6/40 (2006.01); H05B 6/44 (2006.01)
CPC H05B 6/04 (2013.01) [H05B 6/101 (2013.01); H05B 6/40 (2013.01); H05B 6/44 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An apparatus for induction heating powered by a battery as a direct current (DC) power supply, comprising:
a first induction coil comprising a first end connected to a terminal of the battery at a node;
a second induction coil comprising a second end connected to the terminal of the battery via the node;
a first switch device configured to selectively connect a second end of the first induction coil to a voltage potential; and
a second switch device configured to selectively connect a first end of the second induction coil to the voltage potential,
wherein the second end of the first induction coil is directly adjacent to the second end of the second induction coil more than the first end of the first induction coil and the first end of the second induction coil, and
the first end of the second induction coil is directly adjacent to the first end of the first induction coil more than the second end of the second induction coil and the second end of the first induction coil.