Half-bridge resonance inverter for induction heating using digital-controlled pulse density modulation technique

2017 ◽  
Author(s):  
Aphisak Pholsriphim ◽  
Santi Nurach ◽  
Wanchak Lenwari
Keyword(s):  
Induction Heating ◽  
Modulation Technique ◽  
Pulse Density ◽  
Density Modulation ◽  
Pulse Density Modulation

scholarly journals Pulse Density Modulation Based Series Resonant Inverter Fed Induction Heater System

2018 ◽  
Vol 9 (2) ◽  
pp. 690
Author(s):  
S. Jaanaa Rubavathy ◽  
P. Murugesan
Keyword(s):  
Induction Heating ◽  
Output Voltage ◽  
Control Strategies ◽  
Resonant Inverter ◽  
Pulse Density ◽  
Series Resonant ◽  
Density Modulation ◽  
Simulation Results ◽  
Pulse Density Modulation ◽  
Series Resonant Inverter

This paper deals with implementation of a multi-output Series Resonant Inverter(SRI) for induction heating applications, which uses pulse density modulation(PDM) control for full bridge Series resonant inverters for output voltage and power control. It ensures better efficiency performances than conventional control strategies. The proposed converter can be considered as a two output extension of a full bridge inverter. This full bridge inverter can control the two outputs, simultaneously and independently, up to their rated powers, which reduces the usage of number of components as compared with conventional method. It also ensures higher utilization of switches used for its operation. A two output full bridge series resonant inverter is simulated and implemented. The Experimental results are compared with the simulation results.

Comparative Analysis of Various Modulation Strategies for Induction Heating System

2014 ◽  
Vol 622 ◽  
pp. 39-43 ◽  
Author(s):  
Nagarajan Booma ◽  
Rama Reddy Sathi ◽  
Vishuram Pradeep
Keyword(s):  
Induction Heating ◽  
Power Level ◽  
Heating System ◽  
Power Converter ◽  
Modulation Technique ◽  
Switching Losses ◽  
Pulse Density ◽  
Efficient Induction ◽  
Density Modulation ◽  
Induction Heating System

This paper presents a combined asymmetrical voltage cancellation and pulse density modulation technique for energy efficient induction heating system. The proposed technique minimizes the switching losses through soft switching operation and improves the efficiency at low power level. In this modulation technique, the smooth power control can be achieved. The study of power converter has been performed through MATLAB simulation tool and the results are presented. In this proposal, the efficiency of PDM and AVC control techniques are compared with the Hybrid Modulation technique.

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