Analysis of H-bridge Current Source Parallel Resonant Inverter for Induction Heating
نویسندگان
چکیده
This paper gives the theory and experimental results for a current-source parallel-resonant inverter employed for induction heating. The analysis is performed in the frequency domain using Fourier series techniques to predict output power, efficiency, dc-to-ac voltage transfer function, and component voltage and current stresses. The inverter consists of four switches, a large choke inductor, and a parallel-resonant circuit. Each switch consists of a MOSFET in series with a fast diode. An inverter was designed and constructed. The dc input voltage was 70 V and the output voltage was a sine wave with a peak value of 100 V at an operating frequency of 83 kHz. The output power at full load was 400 W.
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