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CURRENT SENSOR AND ELECTRIC POWER CONVERSION CIRCUIT

Foreign code F210010469
File No. AF47-03WO
Posted date 2021年7月28日
Country 世界知的所有権機関(WIPO)
International application number 2020JP040436
International publication number WO 2021085475
Date of international filing 令和2年10月28日(2020.10.28)
Date of international publication 令和3年5月6日(2021.5.6)
Priority data
  • 特願2019-200205 (2019.11.1) JP
Title CURRENT SENSOR AND ELECTRIC POWER CONVERSION CIRCUIT
Abstract This current sensor comprises: an element that is in a high-resistance state when the absolute value of current flowing between a first end and a second end is within a first range, the element changing to a low-resistance state having a lower resistance value than in the high-resistance state when the absolute value of the current exceeds the first range 50; and a circuit that supplies current to be measured to the element and senses the value of the current to be measured on the basis of the voltage of the first end and/or the second end.
Outline of related art and contending technology BACKGROUND ART
A current sensor is known that senses a current by sensing both ends of a resistor through which the current flows (e.g., NpL 1). It is known that, in a detector that detects current using an on-resistance of an FET (Field Effect Transistor), the measurement range is switched by switching the voltage applied to the gate of an FET (for example, Patent Document 1).
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • YAJIMA, Takeaki
  • TORIUMI, Akira
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS IT JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN WS ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
Reference ( R and D project ) CREST Development of Atomic or Molecular Two-Dimensional Functional Films and Creation of Fundamental Technologies for Their Applications AREA
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