Title:
NOISE REMOVAL CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/180111
Kind Code:
A1
Abstract:
According to the present invention, a noise removal circuit (100) has a function of an attenuator which attenuates, at a prescribed ratio, a signal of a voltage difference between a first input signal terminal (1) and a second input signal terminal (2) and converts the attenuated signal to a voltage signal on the basis of a voltage of a reference voltage terminal (3) to output the voltage signal to an output signal terminal (4); and removes, from an output signal output from the output signal terminal (4), noise which is input in phase between the reference voltage terminal (3), and the first input signal terminal (1) and the second input signal terminal (2). The noise removal circuit (100) is provided with: a first resistor (5) of which one terminal is connected to the first input signal terminal (1), and the other terminal is connected to the output signal terminal (4); a second resistor (6) of which one terminal is connected to a path which connects the output signal terminal (4) and the other terminal of the first resistor (5), and the other terminal is connected to the reference voltage terminal (3); and a voltage-to-current converter (7) which converts a voltage difference between the reference voltage terminal (3) and the second input signal terminal (2) into current and outputs a current signal to the output signal terminal (4).
Inventors:
RYU TAKASHI
Application Number:
PCT/JP2018/007108
Publication Date:
October 04, 2018
Filing Date:
February 27, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H03H11/24
Foreign References:
| EP2653846A1 | 2013-10-23 | |||
| US7852248B1 | 2010-12-14 | |||
| US20150212133A1 | 2015-07-30 | |||
| JP2012049955A | 2012-03-08 | |||
| JP2012194151A | 2012-10-11 | |||
| JP2009135938A | 2009-06-18 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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