Patent · US Active

Radio frequency (RF) envelope pulsing using phase switching of switch-mode power amplifiers

US7872523B2 · kind B2 · utility

78Cited by

7References

18Claims

0Family size

Assignee

MKS Instruments, Inc. · US

Inventors

Seshadri Sivakumar · Austin, US
Abdullah Eroglu · Fort Wayne, US

Key dates

Filing date	Jul 1, 2008
Grant date	Jan 18, 2011
Priority date	—
Expiry date	Aug 15, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH03F3/2176
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A radio frequency (RF) power generator includes a first switch-mode amplifier that generates a first RF signal in accordance with a first control signal and a second switch-mode amplifier that generates a second RF signal in accordance with a second control signal. The first and second control signals determine a phase difference between the first and second RF signals. An output signal envelope is based on the first and second RF signals and the phase difference. The first control and second control signals alternate phases of the first and second RF signals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.