Patent ID: 9554426
Date: 2017-01-24
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 includes a first switch a second switch, and a third switch to switch the DC voltage outputted from the rectifier to generate an AC voltage, the first, second switch, and third switches each having first and second connection leads and being serially connected; first and second resonant capacitors coupled in parallel; a first heating element having a first connection to a node between the second connection lead of the first switch and the first connection lead of the second switch and a second connection to the first resonant capacitor; a second heating element having a first connection to a node between the second connection lead of the second switch and the first connection lead of the third switch and a second connection to the second resonant capacitor; 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 switching signal generator includes a photo-coupler.