发明名称 |
INDUCTION HEATING DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME |
摘要 |
An induction heating device comprises: a resonant circuit provided with a coil heating a workpiece inductively and a capacitor, the coil and the capacitor being coupled in parallel with each other; a switching element coupled in series with the resonant circuit; a power supply which applies to the resonant circuit, a direct-current input voltage whose instantaneous value can be changed with the lapse of time; and a power controller which controls power to the workpiece by turning the switching element ON at a certain time and changing an ON period of the switching element, and the power controller is characterized by turning the switching element ON with a delay of an integral multiple of a resonant period of the resonant circuit if a value of power to the workpiece is equal to or lower than a first threshold which is predetermined. |
申请公布号 |
US2012241442(A1) |
申请公布日期 |
2012.09.27 |
申请号 |
US201213428037 |
申请日期 |
2012.03.23 |
申请人 |
KIRIKUBO SEIICHI;YAMAGUCHI ATSUSHI;YAMAMOTO YUTAKA;TSUJIMOTO TAKAHIRO;WATANABE HIROYUKI;MINE HIDENORI;ISHII MASATO;KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. |
发明人 |
KIRIKUBO SEIICHI;YAMAGUCHI ATSUSHI;YAMAMOTO YUTAKA;TSUJIMOTO TAKAHIRO;WATANABE HIROYUKI;MINE HIDENORI;ISHII MASATO |
分类号 |
H05B6/04 |
主分类号 |
H05B6/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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