Abstract:
A repeating setpoint generator module selectively varies a setpoint for an output parameter according to a predetermined pattern that repeats during successive time intervals. A closed-loop module, during a first one of the time intervals, generates N closed-loop values based on N differences between (i) N values of the setpoint at N times during the first one of the time intervals and (ii) N measurements of the output parameter at the N times during the first one of the time intervals, respectively. An adjusting module, during the first one of the time intervals, generates N adjustment values based on N differences between (i) N values of the setpoint at the N times during a second one of the time intervals and (ii) N measurements of the output parameter at the N times during the second one of the time intervals, respectively.
Abstract:
A RF power generator having a fixed power generation section. The fixed power generation section includes a first plurality of power amplifiers each configured to receive a supply voltage and to output a respective first voltage. The RF power generator also includes a weighted power generation section including a plurality of weighted power amplifier modules. Each weighted power amplifier module includes a weighted power amplifier and an associated transformer. Each weighted power amplifier of the weighted power amplifier module receives a respective weighted supply voltage. The voltage across the transformer of each weighted power amplifier module is a fraction of the first voltage.
Abstract:
A power generator includes a power source and a control module coupled to the power source. The control module is configured to generate at least one control signal to vary a respective at least one of an output signal from the power source or an impedance between the power source and a load. The output signal includes a signal modulated by a pulse signal, and the control module is further configured to adjust the at least one control signal to vary at least one of an amplitude or a frequency of the output signal or the impedance between the power source and the load to control a shape of the pulse signal. The at least one of the amplitude, the frequency, or the impedance is adjusted in accordance with respective feedforward adjustments that vary in accordance with a respective sensed pulse parameter detected between a matching network and the load.
Abstract:
A radio frequency (RF) system is disclosed. The RF system includes an RF sensor, an analog to digital converter (ADC) module, a processing module, and a synchronization module. The RF sensor measures a parameter of an RF output and generates an RF signal based on the parameter. The ADC module converts samples of the RF signal into digital values. The processing module generates processed values based on the digital values. The synchronization module outputs one of the processed values in response to a transition in the RF output.