Title:
DIFFERENTIAL INPUT/DIFFERENTIAL OUTPUT INVERTING AMPLIFIER CIRCUIT AND MEASURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/090239
Kind Code:
A1
Abstract:
The purpose of the present invention is to remove a high-frequency common mode voltage. This inverting amplifier circuit 1 is provided with signal input units and signal output units, the inverting amplifier circuit comprising operational amplifiers OP1–OP4, resistances R1, R2 that are connected in series between the signal input units, and a resistance 3 that is connected between a connection point P1 and an intermediate potential, the operational amplifier OP1 being configured so that an inverting input terminal is connected to the signal input units with a resistance R4 interposed therebetween and to an output terminal with a resistance R5 interposed therebetween, a non-inverting input terminal is connected to the connection point P1, and an output terminal is connected to the signal output units, and the operational amplifier OP2 being configured so that an inverting input terminal is connected to the signal input units with a resistance R6 interposed therebetween and to an output terminal with a resistance R7 interposed therebetween, a non-inverting input terminal is connected to the connection point P1, and an output terminal is connected to the signal output units.
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Inventors:
KARASAWA YUKI (JP)
XIA PEIYU (JP)
NAKAZAWA KOKI (JP)
IKEDA KENTA (JP)
XIA PEIYU (JP)
NAKAZAWA KOKI (JP)
IKEDA KENTA (JP)
Application Number:
PCT/JP2023/037184
Publication Date:
May 02, 2024
Filing Date:
October 13, 2023
Export Citation:
Assignee:
HIOKI ELECTRIC WORKS (JP)
International Classes:
H03F3/45; H03F3/68
Foreign References:
| JP2019092103A | 2019-06-13 | |||
| JP2000031758A | 2000-01-28 | |||
| JPH083056Y2 | 1996-01-29 | |||
| JPS62158919U | 1987-10-08 |
Attorney, Agent or Firm:
SAKAI Shinji (JP)
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