INDUCTION HEATING COOKER

摘要

PURPOSE: An induction heating cooker is provided to reduce the number of inverters for driving a heating coil by time-division driving a plurality of independent heating coils through one inverter. CONSTITUTION: A plurality of heating coils(L1-L4) heats a container. A rectifier(10) outputs a ripple voltage by rectifying inputted AC power. A smoothing unit(20) smooths the ripple voltage provided from the rectifier. An inverter(30-32) includes a main switching device(Q1,Q2), a sub switching device(S1-S4), and a condenser(C1,C2). A sensor(50-52) senses a current flowing in the heating coil.