Title:
測定装置及び電圧生成方法
Document Type and Number:
Japanese Patent JP7111163
Kind Code:
B2
Abstract:
The present invention provides a measuring device capable of generating, from a measured alternating current waveform, an alternating current voltage waveform corresponding to the alternating current waveform. The measuring device includes an oscillator for generating an alternating current voltage signal, and a phase comparator for detecting a phase difference between the waveform of an input alternating current and the waveform of the alternating current voltage signal generated by the oscillator, and is provided with a phase synchronization circuit which varies an oscillation frequency of the oscillator on the basis of the phase difference, and performs control such that the phase difference satisfies a predetermined condition.
Inventors:
Shingo Takahashi
Shigeru Kawamoto
Suzuki Ryota
Petrad Waller Murtusa
Shigeru Kawamoto
Suzuki Ryota
Petrad Waller Murtusa
Application Number:
JP2020532377A
Publication Date:
August 02, 2022
Filing Date:
July 22, 2019
Export Citation:
Assignee:
NEC
International Classes:
G01R21/06; G01R19/00; G01R25/00
Domestic Patent References:
| JP4372871A | ||||
| JP2018112535A | ||||
| JP1221677A | ||||
| JP1161162A | ||||
| JP2011220953A | ||||
| JP2013009345A | ||||
| JP2016033488A | ||||
| JP201085163A |
Foreign References:
| US9325324 |
Attorney, Agent or Firm:
Asato Kato
Kiyoto Uchida
Kiyoto Uchida
Previous Patent: COMMUNICATION CONTROL DEVICE, METHOD AND PROGRAM
Next Patent: LIFE INCREASING METHOD FOR LEAD-ACID BATTERY
Next Patent: LIFE INCREASING METHOD FOR LEAD-ACID BATTERY