Title :
A prediction method of the ZVS condition of class E amplifier at any duty ratio
Author :
Suetsugu, Tadashi ; Kazimierczuk, Marian K.
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
Abstract :
A method that predicts the ZVS condition before the switch turns on is presented for the class E amplifier operating at any duty ratio. The prediction is obtained in real-time by observing the switch and shunt capacitor current waveforms with a simple analog-digital circuit. Using this method, a control circuit that ensures the ZVS condition can be realized.
Keywords :
amplifiers; network analysis; switching circuits; ZVS condition; analog-digital circuit; class-E amplifier; control circuit; duty ratio; real-time prediction method; shunt capacitor current waveforms; switch current waveforms; Analog-digital conversion; Capacitors; Circuits; Diodes; Frequency; Operational amplifiers; Prediction methods; Switches; Switching loss; Zero voltage switching;
Conference_Titel :
Electronics, Circuits and Systems, 2002. 9th International Conference on
Print_ISBN :
0-7803-7596-3
DOI :
10.1109/ICECS.2002.1046408
