Control Strategies for Class-E Resonant Inverter with Wide Load Variation

2018 ◽  
Author(s):  
A. Reatti ◽  
F. Corti ◽  
L. Pugi ◽  
Marian K. Kazimierczuk ◽  
Giovanni Migliazza ◽  
...  
Keyword(s):  
Control Strategies ◽  
Load Variation ◽  
Resonant Inverter ◽  
Class E

A predictive control of class E resonant inverter for ultrasonic cleaners

2017 ◽  
Author(s):  
Saransak Niyomthai ◽  
Anawach Sangswang ◽  
Sumate Naetiladdanon ◽  
Ekkachai Mujjalinvimut
Keyword(s):  
Predictive Control ◽  
Resonant Inverter ◽  
Class E

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.

scholarly journals Single-Switch LED Post-Regulator Based on a Modified Class-E Resonant Converter with Voltage Clamp

Electronics ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 798 ◽  
Author(s):  
Ribas ◽  
Quintana ◽  
Cardesin ◽  
Calleja ◽  
Lopez-Corominas
Keyword(s):  
Low Frequency ◽  
Resonant Converter ◽  
Second Stage ◽  
Resonant Inverter ◽  
Switching Losses ◽  
Measured Efficiency ◽  
In Series ◽  
Converter Topology ◽  
Switch Voltage ◽  
Class E

The strict restrictions imposed both by mandatory regulations and by the recommendations contained in current standards have led to the fact that most commercially available LED ballasts nowadays use two-stage topologies. The first stage is intended to comply with the harmonics standards and the second stage is used to control the LED current and reduce the low frequency ripple. In this work, a new DC–DC resonant converter topology is presented. This topology is derived from a modified Class-E resonant inverter by adding a clamping diode. This diode achieves a double goal: it limits the maximum switch voltage and works as a power recirculating path. This way, the proposed topology behaves as a loss-less impedance placed in series with the LED thus allowing to control the output power. This converter maintains the extremely small switching losses inherent to the Class-E inverter while reducing the voltage stress across the switch. This work presents a simplified design methodology based on the fundamental approach. This methodology was used to design and build a DC–DC post-regulator for a 40 W LED lamp. The results obtained with the laboratory prototype show that this circuit can be used to stabilize and dim the LED current while maintaining very small losses. The measured efficiency was 95.7% at nominal power and above 90% when dimmed down to 25%.

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