Resonant inverters are widely used in induction heating applications. Series Resonant Inverter (SRI) fed with voltage source is very much reliable, cost-effective and provides various power control techniques. Different power control schemes like phase shift control (PSC), asymmetrical duty cycle (ADC) control, asymmetrical voltage cancellation (AVC) control, pulse density modulation (PDM) control are normally used at SRI for high frequency induction heating. In this paper a new hybrid control technique by combining PSC and PDM is analyzed. The new control technique overcomes the drawback of individual scheme and provides a wide range of power control. The analyses of all the control techniques are verified through MATLAB simulation results

This paper presents the comparative study of multiple output inverter topologies in terms of their circuit operation, control techniques, output power, number of switches required and their efficiency. It includes the concept of multi-output inverterfor IH applications. Two multi-output topologies are explained for high power and low power applications. These topologiesallowhigher efficiency, low cost and less switching losses as compared to other multiple output techniques such as paralleled power converters and loadmultiplexationtechnique.The control strategy includes asymmetrical voltage cancellation (AVC), Variable frequency duty cycle (VFDC) and Pulse density modulation (PDM) control techniques. The performance of multiple-output inverter topologies is verified using MATLABSimulink.