Title:
【発明の名称】誘導加熱調理器
Document Type and Number:
Japanese Patent JP2850401
Kind Code:
B2
Abstract:
PURPOSE:To enlarge the output voltage without increase in the power loss generated in such components as semiconductor switching elements constituting a frequency converter device, by changing over the connections of a plurality of resonant capacitors, and varying the resonance capacitance of the frequency converter device. CONSTITUTION:When a push-pull inverter 4 is operated, insulative gate type bipolar transistors 16, 18 are turned on alternately so that the resonance of the synthetic impedance of a pan as load and heating coil 6 with resonant capacitors 10, 11 will last. This inverter 4 oscillates at periods of repetitions of rectangular wave emitted to the P15 of a microcomputer 44. This kind of inverter oscillating at a specified frequency can have an alignment better as the resonant frequency is approached to this oscillative frequency to enable enlarging the output power even with the same inverter.
Inventors:
HATSUTORI KENJI
IWAI TOSHIAKI
IZAKI KYOSHI
OGINO YOSHIO
IWAI TOSHIAKI
IZAKI KYOSHI
OGINO YOSHIO
Application Number:
JP25334689A
Publication Date:
January 27, 1999
Filing Date:
September 28, 1989
Export Citation:
Assignee:
MATSUSHITA DENKI SANGYO KK
International Classes:
H05B6/12; (IPC1-7): H05B6/12; H05B6/12
Domestic Patent References:
| JP62128473A | ||||
| JP6249361U |
Attorney, Agent or Firm:
Tomoyuki Takimoto (1 person outside)