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Patent Searching and Data


Title:
CV CONVERSION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2015/111594
Kind Code:
A1
Abstract:
Provided is a CV conversion circuit equipped with a booster circuit, wherein the CV conversion circuit has reduced switching noise. For a prescribed interval (TA) preceding the timing of sampling and holding by a sample-and-hold circuit, a timing control circuit brings an enable signal supplied to a charge pump circuit to low level. The charge pump circuit receives the enable signal, and halts operation. In so doing, switching noise produced within the charge pump circuit is not superimposed on the voltage that is sampled and held by the sample-and-hold circuit.

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Inventors:
OKAMI, Tsuyoshi (10-1 Nakazawa-cho, Naka-ku, Hamamatsu-sh, Shizuoka 50, 〒4308650, JP)
Application Number:
JP2015/051456
Publication Date:
July 30, 2015
Filing Date:
January 21, 2015
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
G01P15/125; G01R27/26
Foreign References:
JP2006170620A2006-06-29
JPH11103254A1999-04-13
US7515076B12009-04-07
JP2008219404A2008-09-18
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (AOYAMA & PARTNERS, Umeda Hankyu Bldg. Office Tower 8-1, Kakuda-cho, Kita-ku, Osaka-sh, Osaka 17, 〒5300017, JP)
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