CLASS-E POWER AMPLIFIER HAVING AUTO POWER CONTROL LOOP AND LOAD COMPENSATION CIRCUIT LOOP

摘要

PURPOSE: A class-e power amplifier with an automatic electricity regulating loop and a load compensation circuit is provided to obtain a high efficiency property by including only two loops with different functions in the structure of a traditional Class-E power amplifier. CONSTITUTION: A load compensation loop(100) recompenses the change of efficiency due to a load. An power regulating loop(200) regularly maintains power. The load compensation loop recompenses the change of the efficiency due to the load through a load compensation capacitor bank(110) and a capacitor bank controller(120) which controls the load compensation capacitor bank. The power regulating loop includes an error amplifier(210). The power regulating loop regularly maintains the power with the reference voltage.