Coupled-amplifier multi-frequency circuit topologies applicable to mass spectrometer radio-frequency drive systems
AssigneeAgilent Technologies, Inc.
InventorMichael J. Schoessow
Life of this patent
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Abstract
A circuit and method for providing high-voltage radio-frequency (RF) energy to an instrument at multiple frequencies includes a plurality of inputs each configured to receive an RF voltage signal oscillating at a corresponding frequency, and a step-up circuit for generating magnified RF voltage signals based on the received RF voltage signals. The step-up circuit includes an LC network operable to isolate the RF voltage signals at the plurality inputs from one another while preserving a voltage magnification from each input to a common output at each of the corresponding frequencies.
Claims20
A circuit for providing high-voltage radio-frequency (RF) energy to an instrument at multiple frequencies, comprising:
- a plurality of inputs each configured to receive an RF voltage signal oscillating at a corresponding frequency;
- and
- a step-up circuit to generate magnified RF voltage signals based on the received RF voltage signals, the step-up circuit comprising an LC network.
An instrument comprising:
- an ion-manipulating structure;
- an ion source to provide ions to the ion-manipulating structure;
- a detector coupled to the ion-mainpulating structure to detect ions;
- and
- a power source to provide high-voltage RF energy to the ion-manipulating structure, the power source including:
- first and second RF energy sources configured to provide RF voltage signals at first and second corresponding frequencies, respectively;
- and
- a step-up circuit having first and second inputs respectively coupled to the first and second RF energy sources.
A method for generating high-voltage radio-frequency (RF) energy for an instrument at multiple frequencies, comprising:
- providing an RF voltage signal at each of a plurality of inputs, each RF voltage signal oscillating at a corresponding frequency;
- and
- generating magnified RF voltage signals, based on the provided RF voltage signals, using a step-up circuit having an LC network.
Dependencies are inferred from the claim text.