Title :
Class-E amplifier with an inductive impedance inverter
Author :
Kazimierczuk, Marian K. ; Bui, Xung T.
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
fDate :
4/1/1990 12:00:00 AM
Abstract :
A design procedure and experimental results are presented for a class-E amplifier with an inductive impedance inverter. Experimental waveforms and characteristics measured at 1 MHz with an IRF620 MOSFET are given for the amplifier, which can operate under zero-voltage switching conditions for load resistances ranging from a short circuit to an open circuit. As the load resistance is increased at a fixed frequency, (1) the output power decreases, (2) a maximum efficiency of 96% occurs for optimum operation, (3) the peak values of the transistor voltage and the transistor current decrease, (4) the normalized peak values of the transistor voltage decrease, and (5) the normalized peak values of the transistor current increase
Keywords :
invertors; power amplifiers; radiofrequency amplifiers; 1 MHz; 96 percent; IRF620 MOSFET; class-E amplifier; inductive impedance inverter; load resistances; open circuit; short circuit; transistor current; transistor voltage; zero-voltage switching; Circuits; Electric resistance; Electronic ballasts; Frequency; H infinity control; Impedance; Inverters; Radio transmitters; Switches; Zero voltage switching;
Journal_Title :
Industrial Electronics, IEEE Transactions on
