Patent ID: 6939519
Filing Date: 2005-09-06
Classification: A61L,H05H,Y10S

Abstract:
1. A power feedback control system for controllably maintaining a predetermined average power value of a power applied to a plasma of a sterilization system, the power having a frequency of from 0 to approximately 200 kHz, the power feedback control system comprising: a power monitor comprising a current monitor and a voltage monitor, the current monitor adapted to produce a first signal indicative of a current applied to the plasma, the voltage monitor adapted to produce a second signal indicative of a voltage applied to the plasma, the power monitor adapted to produce a third signal in response to the first signal and second signal, the third signal indicative of the power applied to the plasma; a power control module adapted to produce a fourth signal in response to the third signal from the power monitor and to a reference signal corresponding to the predetermined average power value; and a power controller adapted to adjust, in response to the fourth signal, the power applied to the plasma to maintain the predetermined average power value of the power applied to the plasma.