The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2010
Filed:
May. 09, 2007
Steven William Hosemans, Upwey, AU;
Steven William Hosemans, Upwey, AU;
Varian Australia Pty Ltd, Mulgrave, Victoria, AU;
Abstract
An RF power generator () for an induction coil () for exciting an inductively coupled plasma in a torch () for spectrometry. The generator () comprises a switching circuit () for alternately switching ON and OFF solid state switching devices () via gate drive voltages () for supplying RF power into a resonant load circuit () comprising the induction coil () and parallel connected capacitance (). The gate drive circuits () for each solid state switching device () each include a portion () that is mutually inductively coupled with leads of the induction coil () to provide the gate drive voltages (). The circuit allows for reduced componentry and therefore a relatively inexpensive RF power generator for exciting and sustaining an inductively coupled plasma for spectrometry.