CA2088626A1 - Load-control circuit for a mains-powered asynchronous single-phase capacitor motor - Google Patents

Load-control circuit for a mains-powered asynchronous single-phase capacitor motor

Info

Publication number
CA2088626A1
CA2088626A1 CA2088626A CA2088626A CA2088626A1 CA 2088626 A1 CA2088626 A1 CA 2088626A1 CA 2088626 A CA2088626 A CA 2088626A CA 2088626 A CA2088626 A CA 2088626A CA 2088626 A1 CA2088626 A1 CA 2088626A1
Authority
CA
Canada
Prior art keywords
load
mains
control circuit
switch
phase capacitor
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.)
Granted
Application number
CA2088626A
Other languages
French (fr)
Other versions
CA2088626C (en
Inventor
Daniel Fluckiger
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.)
Ascom Hasler Mailing Systems AG
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2088626A1 publication Critical patent/CA2088626A1/en
Application granted granted Critical
Publication of CA2088626C publication Critical patent/CA2088626C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/04—Single phase motors, e.g. capacitor motors

Abstract

Disclosed is a circuit for controlling the load of an asynchronous motor (11), the circuit comprising two capacitors (19, 20), one of which (20) can be connected, by means of a switch (70), in parallel with the other (19).
Control is provided by a current sensor (30) and a voltage sensor (40), whose signals (S1, S2) are compared by a comparator (25). Depending on the relative size of the signals (S1, S2) a switch control unit (60) with relaxation hysteresis characteristics switches the switch (70) on or off. The circuit is simple, operates independently of the mains voltage (U) being used and its switch point can be adjusted by means of the current sensor (30).
CA002088626A 1991-06-07 1992-06-04 Load-control circuit for a mains-powered asynchronous single-phase capacitor motor Expired - Fee Related CA2088626C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01697/91-7 1991-06-07
CH169791 1991-06-07

Publications (2)

Publication Number Publication Date
CA2088626A1 true CA2088626A1 (en) 1992-12-08
CA2088626C CA2088626C (en) 1998-01-06

Family

ID=4216485

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002088626A Expired - Fee Related CA2088626C (en) 1991-06-07 1992-06-04 Load-control circuit for a mains-powered asynchronous single-phase capacitor motor

Country Status (6)

Country Link
US (1) US5359273A (en)
EP (1) EP0542955B1 (en)
AT (1) ATE130980T1 (en)
CA (1) CA2088626C (en)
DE (1) DE59204500D1 (en)
WO (1) WO1992022126A1 (en)

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Publication number Priority date Publication date Assignee Title
US6176178B1 (en) 1995-03-07 2001-01-23 Ascom Hasler Mailing Systems Ag Tamper-resistant postage meter
US5706727A (en) * 1995-03-14 1998-01-13 Ascom Hasler Mailing Systems Ag Postage meter with improved paper path
US5668973A (en) * 1995-04-14 1997-09-16 Ascom Hasler Mailing Systems Ag Protection system for critical memory information
US5654614A (en) * 1995-04-14 1997-08-05 Ascom Hasler Mailing Systems Ag Single-motor setting and printing postage meter
US5719381A (en) * 1995-04-14 1998-02-17 Ascom Hasler Mailing Systems Ag Postage meter with hollow rotor axle
US5746133A (en) * 1995-05-22 1998-05-05 Ascom Hasler Mailing Systems Ag Postage meter with rotor movement and die cover sensor
US5689098A (en) * 1995-05-26 1997-11-18 Ascom Hasler Mailing Systems Ag Postage meter with improved postal lock
US7372687B2 (en) * 1995-07-11 2008-05-13 Veris Industries, Llc Combination current sensor and relay
US7193829B2 (en) * 1998-04-08 2007-03-20 Veris Industries, Llc Combination current sensor and relay
US6219216B1 (en) 1998-04-08 2001-04-17 Veris Industries Combination current sensor and relay
US5808846A (en) 1995-07-11 1998-09-15 Veris Industries, Inc. Combination current sensor and relay
US5621296A (en) * 1995-08-07 1997-04-15 Werner; Gary A. Three phase motor conversion and monitoring circuit
US5833265A (en) * 1997-02-21 1998-11-10 Takata, Inc. Airbag with excursion restrictors
ITMI20010649A1 (en) * 2001-03-27 2002-09-27 Minu Spa STARTING CIRCUIT FOR ENGINES PARTICULARLY FOR REFRIGERATOR COMPRESSORS HAVING IMPROVED CHARACTERISTICS
US6844704B2 (en) 2001-10-04 2005-01-18 Ise Corp. Voltage threshold device and energy storage cell failure detection system for power supply
US6919815B2 (en) * 2002-01-24 2005-07-19 Emerson Electric Co. Appliance control communication methods and apparatus
US6825626B2 (en) * 2002-01-24 2004-11-30 Emerson Electric Co. Current sensing methods and apparatus in an appliance
US7243174B2 (en) * 2003-06-24 2007-07-10 Emerson Electric Co. System and method for communicating with an appliance through an optical interface using a control panel indicator
US7321732B2 (en) * 2003-07-28 2008-01-22 Emerson Electric Co. Method and apparatus for improving noise immunity for low intensity optical communication
US7091932B2 (en) * 2003-07-28 2006-08-15 Emerson Electric Co. Method and apparatus for independent control of low intensity indicators used for optical communication in an appliance
US7315148B2 (en) 2003-07-28 2008-01-01 Emerson Electric Co. Method and apparatus for conserving battery for operation of a low intensity optical communication probe
US20050025493A1 (en) * 2003-07-28 2005-02-03 Jurgis Astrauskas Method and apparatus for using a close proximity probe for optical communication with a device external to the probe
US7280769B2 (en) * 2003-07-28 2007-10-09 Emerson Electric Co. Method and apparatus for operating an optical receiver for low intensity optical communication in a high speed mode
US7095333B2 (en) * 2003-09-18 2006-08-22 Emerson Electric Company Method and apparatus for enabling optical communication through low intensity indicators in an appliance that uses a vacuum fluorescent display
KR100608671B1 (en) * 2004-06-03 2006-08-08 엘지전자 주식회사 Driving control apparatus and method for line start type reciprocating compressor
CA2484960C (en) * 2004-09-21 2012-01-24 Veris Industries, Llc Status indicator
CN100411299C (en) * 2006-02-17 2008-08-13 中国石油大学(北京) Energy-saving control method and apparatus for asynchronous motor of walking-beam pumping unit
CA2609619A1 (en) 2007-09-10 2009-03-10 Veris Industries, Llc Status indicator
CA2609629A1 (en) 2007-09-10 2009-03-10 Veris Industries, Llc Current switch with automatic calibration
CA2609611A1 (en) 2007-09-10 2009-03-10 Veris Industries, Llc Split core status indicator
US8212548B2 (en) 2008-06-02 2012-07-03 Veris Industries, Llc Branch meter with configurable sensor strip arrangement
US10006948B2 (en) 2011-02-25 2018-06-26 Veris Industries, Llc Current meter with voltage awareness
US9146264B2 (en) 2011-02-25 2015-09-29 Veris Industries, Llc Current meter with on board memory
US9329996B2 (en) 2011-04-27 2016-05-03 Veris Industries, Llc Branch circuit monitor with paging register
US9250308B2 (en) 2011-06-03 2016-02-02 Veris Industries, Llc Simplified energy meter configuration
US9410552B2 (en) 2011-10-05 2016-08-09 Veris Industries, Llc Current switch with automatic calibration
US9800188B2 (en) * 2015-09-15 2017-10-24 Regal Beloit America, Inc. Hybrid drive circuit for variable speed induction motor
US11131491B1 (en) 2020-08-07 2021-09-28 Emerson Climate Technologies, Inc. Systems and methods for multi-stage operation of a compressor

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
GB2067370B (en) * 1979-12-28 1984-01-25 Myson Group Ltd Electric motor start up control
CH663698A5 (en) * 1984-02-01 1987-12-31 Bbc Brown Boveri & Cie CIRCUIT ARRANGEMENT FOR SUPPLYING A THREE-PHASE INDUCTION MOTOR FROM A SINGLE-PHASE NETWORK.
AT390533B (en) * 1986-04-11 1990-05-25 Aichholzer Gerhard Dr Starting circuit for single-phase asynchronous motors
US4675565A (en) * 1986-06-02 1987-06-23 Lewus Alexander J Capacitor-start parallel resonant motor
US4703387A (en) * 1986-05-22 1987-10-27 Franklin Electric Co., Inc. Electric motor underload protection system
US4885655A (en) * 1987-10-07 1989-12-05 Spring Valley Associates, Inc. Water pump protector unit
US4806838A (en) * 1988-05-23 1989-02-21 Weber Harold J A.C. induction motor energy conserving power control method and apparatus
US4992709A (en) * 1989-06-20 1991-02-12 Lightolier, Inc. Switching circuit providing adjustable capacitive series voltage dropping circuit with a fractional horsepower motor
BR8906225A (en) * 1989-11-28 1991-06-04 Brasil Compressores Sa ELECTRONIC CIRCUIT FOR STARTING A SINGLE PHASE INDUCTION MOTOR
US5017853A (en) * 1990-02-27 1991-05-21 Rexnord Corporation Spikeless motor starting circuit

Also Published As

Publication number Publication date
EP0542955B1 (en) 1995-11-29
CA2088626C (en) 1998-01-06
DE59204500D1 (en) 1996-01-11
ATE130980T1 (en) 1995-12-15
EP0542955A1 (en) 1993-05-26
WO1992022126A1 (en) 1992-12-10
US5359273A (en) 1994-10-25

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