公开(公告)号：US20190021140A1

公开(公告)日：2019-01-17

申请号：US16132600

申请日：2018-09-17

Applicant: NETUREN CO., LTD.

Inventor： Tetsuya ONO ,  Masato SUGIMOTO ,  Yutaka KIYOSAWA ,  Toshihiro AIBA ,  Kazutomi OKA ,  Kunihiro KOBAYASHI ,  Fumiaki IKUTA ,  Kazuhiro KAWASAKI

IPC: H05B6/06 ,  G01R31/40 ,  G01R21/06

Abstract: An induction heating system includes induction heating apparatuses, each including a high-frequency current transformer, a low-frequency current transformer and a heating coil, a high-frequency input switch connected to the high-frequency current transformer, a low-frequency input switch connected to the low-frequency current transformer, a first power source to output a high-frequency electric power and a low frequency electric power, a second power source, a first power source output switch connectable to the first power source, a second power source output switch connectable to the second power source, and a switch controller. Each induction heating apparatus includes a heater controller to send a signal to the switching controller to turn on one of the first power source output switch and the second power source output switch, to turn off the other, and to switch on or off each of the high-frequency input switch and the low-frequency input switch.