INDUCTION HEAT COOKING APPARATUS

摘要

An induction heat cooking apparatus in which a first terminal of a first resonant capacitor of which a second terminal is connected to a second heating coil is connected to one of a positive power supply terminal and a negative power supply terminal of a rectifier, and a first terminal of a second resonant capacitor of which a second terminal is connected to a third heating coil is connected to the other one of the positive power supply terminal and the negative power supply terminal of the rectifier not connected to the first resonant capacitor, and a controller controls a plurality of switching devices to simultaneously drive the second heating coil and the third heating coil which are connected in parallel.

主权项

1. An induction heat cooking apparatus comprising:
a rectifier to rectify an input voltage and to output a DC voltage; a DC capacitor connected to two ends of the rectifier; a plurality of switching devices to switch the DC voltage output from the rectifier; a plurality of heating coils to heat a cooking container according to control of the plurality of switching devices; and a controller to control the plurality switching devices, wherein the plurality of heating coils comprises a first heating coil, a second heating coil, and a third heating coil, wherein a first terminal of a first resonant capacitor is connected to one of a positive power supply terminal and a negative power supply terminal of the rectifier and a second terminal of the firsts resonant capacitor is connected to the second heating coil, wherein a first terminal of a second resonant capacitor is connected to the other one of the positive power supply terminal and the negative power supply terminal of the rectifier not connected to the first resonant capacitor and a second terminal of the second resonant capacitor is connected to the third heating coil, and wherein the controller controls the plurality of switching devices to simultaneously drive the second heating coil and the third heating coil which are connected in parallel.