Induction Heating device by Using Resonant Inverter with Dual Frequency Output

摘要

Using dual-frequency resonant inverter discloses an induction heating apparatus. According to one embodiment of the present invention, there is provided a power supply for supplying power to an inductive load in an induction heating apparatus, the power supply is selectively oscillating and outputting the alternating-current power at a first frequency or a second frequency; And comprising: a resonance circuit portion that constitutes the inductive load with the resonant circuit in response to the frequency of the AC power to the oscillation output, wherein the first frequency is higher than the second frequency, the resonant circuit is of the first frequency when the AC power is applied and provides the power supply, characterized in that operating in a series-parallel resonant circuit, and operating in the serial resonant circuit when applied with the AC power of the second frequency.