Title :
A method for predicting the ZVS condition for the class E amplifier
Author :
Suetsugu, Tadashi ; Kazimierczuk, Marian K.
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
Abstract :
A method for predicting the ZVS condition before turning the switch on is presented for the class E amplifier operating with D=0.5. The prediction is obtained in realtime by observing the switch current waveform and the shunt capacitor current waveform with a simple analog-digital circuit. Using this method, a control circuit that ensures ZVS condition becomes feasible.
Keywords :
amplifiers; nonlinear network analysis; switching circuits; timing; ZVS condition prediction; ZVS prediction circuit; analog-digital circuit; class-E amplifier; control circuit; high efficiency. amplifier; shunt capacitor current waveform; switch current waveform; zero voltage switching; Digital circuits; IEEE members; Operational amplifiers; RLC circuits; Switched capacitor circuits; Switches; Switching circuits; Turning; USA Councils; Zero voltage switching;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010248
