Invention Application
- Patent Title: METHODS AND APPARATUS FOR INCREASING ACCURACY OF RMS MEASUREMENTS OF SIGNALS WITH A HIGH CREST FACTOR
- Patent Title (中): 提高信号RMS值测量精度的方法与设备
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Application No.: US14278621Application Date: 2014-05-15
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Publication No.: US20140355972A1Publication Date: 2014-12-04
- Inventor: OLEG SEREBRYANOV
- Applicant: APPLIED MATERIALS, INC.
- Applicant Address: US CA Santa Clara
- Assignee: APPLIED MATERIALS, INC.
- Current Assignee: APPLIED MATERIALS, INC.
- Current Assignee Address: US CA Santa Clara
- Main IPC: G01R19/02
- IPC: G01R19/02 ; H05B3/00
Abstract:
Methods and apparatus for determining the root-mean-square (RMS) voltage of an input voltage are provided herein. In some embodiments, an apparatus for determining the root-mean-square (RMS) voltage of an input voltage includes an amplifier to modify an amplitude of the input voltage signal; an amplitude detector, coupled to the amplifier, to transform the spectrum of the modified input voltage signal so that an increased portion of the signal is disposed within a desired frequency region; and a root-mean-square (RMS) converter, coupled to the amplitude detector, to determine the RMS voltage of the transformed input voltage signal, wherein a bandwidth of the RMS converter includes the desired frequency region.
Public/Granted literature
- US09766275B2 Methods and apparatus for increasing accuracy of RMS measurements of signals with a high crest factor Public/Granted day:2017-09-19
Information query
