Patent ID: 9544946
Date: 2017-01-10
CPC Classifications: H05B

Claim:
1. An induction heat cooking apparatus comprising: a rectifier that rectifies an input voltage to output a DC voltage; an inverter that switches the DC voltage outputted through the rectifier to generate an AC voltage; a first heating element operated by the AC voltage applied from the inverter; a second heating element connected in parallel to the first heating element, the second heating element being operated by the AC voltage applied from the inverter; and a switching signal generator that generates control signals for the inverter to control an operational state of each of the first and second heating elements according to a received operational mode signal, wherein the inverter includes a first switch, a second switch, and a third switch which are connected in series between a positive power terminal and a negative power terminal of the rectifier, wherein the switching signal generator includes a first pulse transformer and a second pulse transformer that controls the first to third switches of the inverter, wherein the first pulse transformer generates a control signal for operating the first and third switches, and the second pulse transformer generates a control signal for operating the second switch.