JPS6454270A - Integration type multi-phase wattmeter - Google Patents

Integration type multi-phase wattmeter

Info

Publication number
JPS6454270A
JPS6454270A JP63156624A JP15662488A JPS6454270A JP S6454270 A JPS6454270 A JP S6454270A JP 63156624 A JP63156624 A JP 63156624A JP 15662488 A JP15662488 A JP 15662488A JP S6454270 A JPS6454270 A JP S6454270A
Authority
JP
Japan
Prior art keywords
current
voltage
transformer
signal
proportional
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP63156624A
Other languages
Japanese (ja)
Inventor
Reidaa Robaato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger SA
Original Assignee
Schlumberger SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/066,795 external-priority patent/US4926131A/en
Priority claimed from US07/066,793 external-priority patent/US4786877A/en
Priority claimed from US07/066,794 external-priority patent/US4924412A/en
Application filed by Schlumberger SA filed Critical Schlumberger SA
Publication of JPS6454270A publication Critical patent/JPS6454270A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/36—Induction meters, e.g. Ferraris meters
    • G01R11/40—Induction meters, e.g. Ferraris meters for polyphase operation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE: To obtain a signal having an amplitude proportional to the current of a distribution system and a pulse width proportional to the voltage of the system by generating a pulse width-modulated signal from the voltage of the system and a triangular-wave signal and controlling a CMOS switch by using the generated signal. CONSTITUTION: A transformer 20 is connected between distribution lines 16 and 18 and a current transformer 24 is connected to a current path to an application 15. The output of the transformer 20 is connected to one input of a comparator 30 and a triangular-wave generator 35 is connected to the other input of the comparator 30 so that a pulse having a width proportional to the voltage can be obtained. The output of the comparator 30 and a sign bit NP are connected to the control input of a CMOS switch 40 through an EXOR circuit 45. The transformer 24 and a current-to-frequency converter 50 are respectively connected to both ends of the switch 40 through resistors R1 and R2. Therefore, a signal having an amplitude accurately proportional to the current and a pulse width proportional to the voltage can be inputted to the converter 50.
JP63156624A 1987-06-25 1988-06-24 Integration type multi-phase wattmeter Pending JPS6454270A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/066,795 US4926131A (en) 1987-06-25 1987-06-25 Triangle waveform generator for pulse-width amplitude multiplier
US07/066,793 US4786877A (en) 1987-06-25 1987-06-25 Amplifier for voltage or current to frequency converter
US07/066,794 US4924412A (en) 1987-06-25 1987-06-25 Integrated poly-phase power meter

Publications (1)

Publication Number Publication Date
JPS6454270A true JPS6454270A (en) 1989-03-01

Family

ID=27371041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63156624A Pending JPS6454270A (en) 1987-06-25 1988-06-24 Integration type multi-phase wattmeter

Country Status (16)

Country Link
JP (1) JPS6454270A (en)
KR (1) KR890000899A (en)
CN (1) CN1027470C (en)
AU (1) AU618955B2 (en)
BR (1) BR8803139A (en)
CA (1) CA1301249C (en)
DK (1) DK350888A (en)
FI (1) FI883059A (en)
HU (1) HUT47186A (en)
IL (1) IL86780A0 (en)
MX (1) MX164998B (en)
NO (1) NO882810L (en)
NZ (1) NZ225148A (en)
PT (1) PT87830B (en)
TR (1) TR23899A (en)
YU (1) YU119488A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008159340A (en) * 2006-12-22 2008-07-10 Smk Corp Socket for attaching electronic component

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016175123A1 (en) * 2015-04-28 2016-11-03 アルプス・グリーンデバイス株式会社 Non-contact voltage measurement device
EP3098610B8 (en) * 2015-05-29 2019-06-05 HAMEG Instruments GmbH Power measuring device and measuring system for measuring the power of multiple phases in a multi-phase system
CN107453734A (en) * 2017-07-25 2017-12-08 电子科技大学 A kind of ultrasonic sensor pumping signal generation circuit
CN107703354B (en) * 2017-11-15 2024-01-19 海宁智阳电子有限公司 Power operation circuit, switching power supply and switching power supply application system
KR102611341B1 (en) * 2018-10-29 2023-12-08 삼성전자주식회사 Duty timing detector detecting duty timing of toggle signal, device including duty timing detector, and operating method of device receiving toggle signal
US11313903B2 (en) * 2020-09-30 2022-04-26 Analog Devices, Inc. Pin driver and test equipment calibration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008159340A (en) * 2006-12-22 2008-07-10 Smk Corp Socket for attaching electronic component

Also Published As

Publication number Publication date
FI883059A (en) 1988-12-26
BR8803139A (en) 1989-01-31
NO882810L (en) 1988-12-27
YU119488A (en) 1991-01-28
DK350888A (en) 1988-12-26
FI883059A0 (en) 1988-06-23
CN1027470C (en) 1995-01-18
PT87830A (en) 1989-05-31
KR890000899A (en) 1989-03-17
NO882810D0 (en) 1988-06-24
MX164998B (en) 1992-10-13
HUT47186A (en) 1989-01-30
TR23899A (en) 1990-11-01
DK350888D0 (en) 1988-06-24
CA1301249C (en) 1992-05-19
NZ225148A (en) 1990-11-27
IL86780A0 (en) 1988-11-30
AU1771788A (en) 1989-01-05
PT87830B (en) 1995-05-04
CN1033322A (en) 1989-06-07
AU618955B2 (en) 1992-01-16

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