CA972040A - Zero crossing detector - Google Patents

Zero crossing detector

Info

Publication number
CA972040A
CA972040A CA151,334A CA151334A CA972040A CA 972040 A CA972040 A CA 972040A CA 151334 A CA151334 A CA 151334A CA 972040 A CA972040 A CA 972040A
Authority
CA
Canada
Prior art keywords
zero crossing
crossing detector
detector
zero
crossing
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.)
Expired
Application number
CA151,334A
Other languages
English (en)
Other versions
CA151334S (en
Inventor
Mark W. Garaway
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of CA972040A publication Critical patent/CA972040A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/083—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the ignition at the zero crossing of the voltage or the current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/13—Modifications for switching at zero crossing
    • H03K17/136—Modifications for switching at zero crossing in thyristor switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant
    • H03K5/1536—Zero-crossing detectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S323/00—Electricity: power supply or regulation systems
    • Y10S323/902—Optical coupling to semiconductor

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Keying Circuit Devices (AREA)
  • Manipulation Of Pulses (AREA)
  • Electronic Switches (AREA)
  • Power Conversion In General (AREA)
  • Measurement Of Current Or Voltage (AREA)
CA151,334A 1971-09-30 1972-09-11 Zero crossing detector Expired CA972040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18520071A 1971-09-30 1971-09-30

Publications (1)

Publication Number Publication Date
CA972040A true CA972040A (en) 1975-07-29

Family

ID=22680014

Family Applications (1)

Application Number Title Priority Date Filing Date
CA151,334A Expired CA972040A (en) 1971-09-30 1972-09-11 Zero crossing detector

Country Status (7)

Country Link
US (1) US3693027A (fr)
JP (1) JPS5230531Y2 (fr)
AU (1) AU463244B2 (fr)
BE (1) BE789423A (fr)
CA (1) CA972040A (fr)
FR (1) FR2154770B1 (fr)
IT (1) IT967870B (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2154968A1 (de) * 1971-11-05 1973-05-10 Gehap Gmbh & Co Kg Schaltungsanordnung fuer einen optogekoppelten nullspannungsschalter
US3947753A (en) * 1972-05-06 1976-03-30 Canon Kabushiki Kaisha Voltage regulator including an LED to provide a reference voltage
US3866051A (en) * 1973-02-01 1975-02-11 Xerox Corp Digital interface module
US3932770A (en) * 1973-03-07 1976-01-13 Xerox Corporation Control circuit for switching triacs
US3950689A (en) * 1973-04-26 1976-04-13 Jamison Robert M Method and apparatus for charging and discharging a battery
US3914625A (en) * 1973-08-13 1975-10-21 Westinghouse Electric Corp Zero crossover circuit
US3885231A (en) * 1973-10-19 1975-05-20 Gen Electric Remote control circuit having light coupling
US3987271A (en) * 1974-03-05 1976-10-19 Colt Industries Operating Corporation Electrical discharge machining power supply circuit
FR2266384B1 (fr) * 1974-03-29 1976-12-17 Thomson Csf
US3895241A (en) * 1974-05-06 1975-07-15 Int Rectifier Corp LED coupled switching circuits
US4031417A (en) * 1976-05-10 1977-06-21 Sperry Rand Corporation Apparatus for coupling a digital data generator to a digital data readout device with electrical isolation therebetween
US4229669A (en) * 1978-04-03 1980-10-21 International Business Machines Corporation Tight tolerance zero crossing detector circuit
CH640090A5 (fr) * 1980-11-14 1983-12-15 Mefina Sa Dispositif de commande d'un moteur a courant continu.
US4376969A (en) * 1981-03-11 1983-03-15 General Electric Company Control signal and isolation circuits
US4988336A (en) * 1989-09-22 1991-01-29 Allied Healthcare Products, Inc. Electronic suction regulator
US5872478A (en) * 1996-11-04 1999-02-16 Fmc Corporation SCR firing circuit for high voltage control applications
CA2623061A1 (fr) * 2007-03-02 2008-09-02 Sean C. Carroll Circuit de passage a zero
RU2011102576A (ru) * 2008-06-25 2012-07-27 Конинклейке Филипс Электроникс Н.В. (Nl) Электронная таблетка, содержащая множество емкостей с лекарственным средствами
DE102010012529B3 (de) * 2010-03-23 2011-06-09 Theben Ag Schaltungsanordnung für einen Optokoppler
US8669787B2 (en) * 2012-05-17 2014-03-11 Rockwell Automation Technologies, Inc. Zero-crossing detector for industrial control with low heat dissipation
US9404948B2 (en) * 2012-12-21 2016-08-02 Microchip Technology Incorporated Mains voltage zero-crossing detector
CN203759106U (zh) * 2014-03-18 2014-08-06 瑞斯康微电子（深圳）有限公司 一种市电过零检测电路

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3335291A (en) * 1965-03-11 1967-08-08 Gen Electric Zero voltage switching circuit using gate controlled conducting devices
US3450891A (en) * 1966-08-18 1969-06-17 Gen Electric Synchronous triac control

Also Published As

Publication number Publication date
JPS4858441U (fr) 1973-07-25
FR2154770A1 (fr) 1973-05-11
FR2154770B1 (fr) 1976-01-30
IT967870B (it) 1974-03-11
JPS5230531Y2 (fr) 1977-07-12
US3693027A (en) 1972-09-19
AU4583372A (en) 1974-02-28
AU463244B2 (en) 1975-07-17
BE789423A (fr) 1973-03-28

Similar Documents

Publication Publication Date Title
CA979099A (en) Balanced field metal detector
CA974915A (en) Straddle-form ski-lift
CA972040A (en) Zero crossing detector
AU452801B2 (en) Leak detector
CA997029A (en) Fail-safe position detector
CA973389A (en) Flowmeter
CA954181A (en) Mispuff detector
CA982363A (en) Flowmeters
AU466959B2 (en) Motion detector
CA986128A (en) Tetraphenol
AU4605572A (en) Cryostat
CA921556A (en) Flaw detector
AU461199B2 (en) Detector
CA946922A (en) Frequency detector
AU444051B2 (en) Asynchronous detector
CA880607A (en) Castor
CA940629A (en) Phase-difference detector
AU469273B2 (en) Aralkylamines
CA975824A (en) Derailment detector
CA864116A (en) Proximity detector
CA881152A (en) Proximity detector
CA882328A (en) Margin angle detector
AU2792771A (en) Paddleboat
CA869176A (en) Fault detector
CA975854A (en) Detector systems