WO2007061901A3 - Method and apparatus for quiet fan speed control - Google Patents

Method and apparatus for quiet fan speed control Download PDF

Info

Publication number
WO2007061901A3
WO2007061901A3 PCT/US2006/044786 US2006044786W WO2007061901A3 WO 2007061901 A3 WO2007061901 A3 WO 2007061901A3 US 2006044786 W US2006044786 W US 2006044786W WO 2007061901 A3 WO2007061901 A3 WO 2007061901A3
Authority
WO
WIPO (PCT)
Prior art keywords
motor
voltage
renders
detected
control circuit
Prior art date
Application number
PCT/US2006/044786
Other languages
French (fr)
Other versions
WO2007061901A2 (en
Inventor
James P Steiner
Aaron Dobbins
Chen Ming Wu
Original Assignee
Lutron Electronics Co
James P Steiner
Aaron Dobbins
Chen Ming Wu
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 Lutron Electronics Co, James P Steiner, Aaron Dobbins, Chen Ming Wu filed Critical Lutron Electronics Co
Priority to AT06837983T priority Critical patent/ATE487270T1/en
Priority to CA2628529A priority patent/CA2628529C/en
Priority to BRPI0619700-0A priority patent/BRPI0619700A2/en
Priority to EP06837983A priority patent/EP1952527B1/en
Priority to CN2006800432314A priority patent/CN101473526B/en
Priority to JP2008541381A priority patent/JP2009520451A/en
Priority to DE602006018055T priority patent/DE602006018055D1/en
Publication of WO2007061901A2 publication Critical patent/WO2007061901A2/en
Publication of WO2007061901A3 publication Critical patent/WO2007061901A3/en
Priority to HK09112027.3A priority patent/HK1132099A1/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/24Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual ac commutator motor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/288Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using variable impedance
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

An AC motor speed controller includes a plurality of capacitors that may be selectively switched, by means of controllably conductive switches, into series electrical connection with an AC motor and an AC voltage source to control the speed of the motor. To change the speed of the motor, a control circuit renders a first switch conductive, in response to a first detected AC voltage zero crossing, to charge a first capacitor to a predetermined voltage. The control circuit then renders a second switch conductive, in response to a subsequent second detected AC voltage zero crossing, to charge a second capacitor to the predetermined voltage. The control circuit then renders both switches simultaneously conductive at a predetermined time after a subsequent third detected AC voltage zero crossing. The capacitors will thereby be charged to the same voltage prior to being switched into series with the motor, thereby resulting in reduced acoustic noise when changing motor speeds.
PCT/US2006/044786 2005-11-18 2006-11-17 Method and apparatus for quiet fan speed control WO2007061901A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT06837983T ATE487270T1 (en) 2005-11-18 2006-11-17 METHOD AND DEVICE FOR SILENT SPEED CONTROL FOR A FAN
CA2628529A CA2628529C (en) 2005-11-18 2006-11-17 Method and apparatus for quiet fan speed control
BRPI0619700-0A BRPI0619700A2 (en) 2005-11-18 2006-11-17 load control devices and method for controlling the speed of an ac motor to be directed to an ac voltage supply from a power source and method for changing the speed of an ac motor on a load control device
EP06837983A EP1952527B1 (en) 2005-11-18 2006-11-17 Method and apparatus for quiet fan speed control
CN2006800432314A CN101473526B (en) 2005-11-18 2006-11-17 Method and apparatus for quiet fan speed control
JP2008541381A JP2009520451A (en) 2005-11-18 2006-11-17 Method and apparatus for quiet fan speed control
DE602006018055T DE602006018055D1 (en) 2005-11-18 2006-11-17 ESTABLISHMENT FOR ONE FAN
HK09112027.3A HK1132099A1 (en) 2005-11-18 2009-12-21 Method and apparatus for quiet fan speed control

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US73801705P 2005-11-18 2005-11-18
US60/738,017 2005-11-18
US11/560,664 US7489094B2 (en) 2005-11-18 2006-11-16 Method and apparatus for quiet fan speed control
US11/560,664 2006-11-16

Publications (2)

Publication Number Publication Date
WO2007061901A2 WO2007061901A2 (en) 2007-05-31
WO2007061901A3 true WO2007061901A3 (en) 2007-08-02

Family

ID=38050004

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/044786 WO2007061901A2 (en) 2005-11-18 2006-11-17 Method and apparatus for quiet fan speed control

Country Status (10)

Country Link
US (3) US7489094B2 (en)
EP (1) EP1952527B1 (en)
JP (1) JP2009520451A (en)
CN (1) CN101473526B (en)
AT (1) ATE487270T1 (en)
BR (1) BRPI0619700A2 (en)
CA (1) CA2628529C (en)
DE (1) DE602006018055D1 (en)
HK (1) HK1132099A1 (en)
WO (1) WO2007061901A2 (en)

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Also Published As

Publication number Publication date
US20090072775A1 (en) 2009-03-19
BRPI0619700A2 (en) 2011-10-11
US7671549B2 (en) 2010-03-02
US7489094B2 (en) 2009-02-10
EP1952527A2 (en) 2008-08-06
CN101473526B (en) 2010-12-08
US8193744B2 (en) 2012-06-05
CN101473526A (en) 2009-07-01
EP1952527B1 (en) 2010-11-03
CA2628529A1 (en) 2007-05-31
US20100109597A1 (en) 2010-05-06
HK1132099A1 (en) 2010-02-12
DE602006018055D1 (en) 2010-12-16
CA2628529C (en) 2012-10-09
WO2007061901A2 (en) 2007-05-31
ATE487270T1 (en) 2010-11-15
US20070114963A1 (en) 2007-05-24
JP2009520451A (en) 2009-05-21

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