BRPI0413261A - method for controlling a portable fan, portable fan apparatus, methods for controlling an electric motor, and for calibrating a servo speed - Google Patents

method for controlling a portable fan, portable fan apparatus, methods for controlling an electric motor, and for calibrating a servo speed

Info

Publication number
BRPI0413261A
BRPI0413261A BRPI0413261-0A BRPI0413261A BRPI0413261A BR PI0413261 A BRPI0413261 A BR PI0413261A BR PI0413261 A BRPI0413261 A BR PI0413261A BR PI0413261 A BRPI0413261 A BR PI0413261A
Authority
BR
Brazil
Prior art keywords
controlling
portable fan
methods
portable
electric motor
Prior art date
Application number
BRPI0413261-0A
Other languages
Portuguese (pt)
Inventor
David Boyle
Michael Holmes
Malcolm Williams
Original Assignee
Pulmonetic Systems Inc
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 Pulmonetic Systems Inc filed Critical Pulmonetic Systems Inc
Publication of BRPI0413261A publication Critical patent/BRPI0413261A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/206—Capsule valves, e.g. mushroom, membrane valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0063—Compressors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A61M16/024—Control means therefor including calculation means, e.g. using a processor
    • A61M16/026—Control means therefor including calculation means, e.g. using a processor specially adapted for predicting, e.g. for determining an information representative of a flow limitation during a ventilation cycle by using a root square technique or a regression analysis
    • A—HUMAN NECESSITIES
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/202—Controlled valves electrically actuated
    • A61M16/203—Proportional
    • A61M16/205—Proportional used for exhalation control
    • 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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position
    • H02P6/17—Circuit arrangements for detecting position and for generating speed information
    • A—HUMAN NECESSITIES
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
    • A—HUMAN NECESSITIES
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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    • A61M2016/0015—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
    • A61M2016/0018—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical
    • A61M2016/0021—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical with a proportional output signal, e.g. from a thermistor
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0036—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the breathing tube and used in both inspiratory and expiratory phase
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M2016/102—Measuring a parameter of the content of the delivered gas
    • A61M2016/1025—Measuring a parameter of the content of the delivered gas the O2 concentration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0208—Oxygen
    • A—HUMAN NECESSITIES
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/16—General characteristics of the apparatus with back-up system in case of failure
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3317—Electromagnetic, inductive or dielectric measuring means
    • A—HUMAN NECESSITIES
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3365—Rotational speed
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3368—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M2205/35—Communication
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    • A61M2205/3553—Range remote, e.g. between patient's home and doctor's office
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    • A61M2205/00—General characteristics of the apparatus
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    • A61M2209/00—Ancillary equipment
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    • A61M2209/084—Supporting bases, stands for equipment
    • A61M2209/086—Docking stations
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    • A61M2230/00—Measuring parameters of the user
    • A61M2230/20—Blood composition characteristics
    • A61M2230/205—Blood composition characteristics partial oxygen pressure (P-O2)
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    • A61M2230/40—Respiratory characteristics
    • A61M2230/43—Composition of exhalation
    • A61M2230/432—Composition of exhalation partial CO2 pressure (P-CO2)
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    • A61M2230/43—Composition of exhalation
    • A61M2230/435—Composition of exhalation partial O2 pressure (P-O2)

Abstract

"MéTODO PARA CONTROLAR UM VENTILADOR PORTáTIL, APARELHO DE VENTILADOR PORTáTIL, MéTODOS PARA CONTROLAR UM MOTOR ELéTRICO, E PARA CALIBRAR UMA SERVOVELOCIDADE". São apresentados um método e aparelho para controlar um motor CC sem escova (BLDC) em uma ampla faixa de velocidades angulares. Sensores magnéticos analógicos fornecem medições de sinal contínuas relacionadas à posição angular do rotor a uma taxa de amostragem independente da velocidade angular do rotor. Em uma modalidade, medições de sinal analógico são subseqüentemente processadas usando uma função arcotangente para obter a posição angular do rotor. O arcotangente pode ser computado usando computação aritmética, uma aproximação de baixo ângulo - uma abordagem de avaliação polinomial - uma abordagem de busca em tabela, ou uma combinação de vários métodos. Em uma modalidade, o rotor GLDC é usado para acionar o soprador Roots usado como um compressor em um sistema de ventilador mecânico portátil."METHOD TO CONTROL A PORTABLE FAN, PORTABLE FAN APPARATUS, METHODS TO CONTROL AN ELECTRIC MOTOR, AND TO CALIBRATE A SERVO SPEED". A method and apparatus for controlling a brushless DC motor (BLDC) over a wide range of angular speeds is presented. Analog magnetic sensors provide continuous signal measurements related to rotor angular position at a sampling rate independent of rotor angular velocity. In one embodiment, analog signal measurements are subsequently processed using an arctangent function to obtain the rotor angular position. The arcotangent can be computed using arithmetic computation, a low angle approximation - a polynomial evaluation approach - a table search approach, or a combination of various methods. In one embodiment, the GLDC rotor is used to drive the Roots blower used as a compressor in a portable mechanical fan system.

BRPI0413261-0A 2003-08-04 2004-08-03 method for controlling a portable fan, portable fan apparatus, methods for controlling an electric motor, and for calibrating a servo speed BRPI0413261A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49242103P 2003-08-04 2003-08-04
PCT/US2004/025197 WO2005016217A2 (en) 2003-08-04 2004-08-03 Compressor control system for a portable ventilator

Publications (1)

Publication Number Publication Date
BRPI0413261A true BRPI0413261A (en) 2006-10-10

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ID=34193121

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0413261-0A BRPI0413261A (en) 2003-08-04 2004-08-03 method for controlling a portable fan, portable fan apparatus, methods for controlling an electric motor, and for calibrating a servo speed

Country Status (6)

Country Link
EP (1) EP1653904A4 (en)
JP (2) JP2007501072A (en)
AU (1) AU2004264324B2 (en)
BR (1) BRPI0413261A (en)
CA (2) CA2861511A1 (en)
WO (1) WO2005016217A2 (en)

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US7369757B2 (en) 2006-05-24 2008-05-06 Nellcor Puritan Bennett Incorporated Systems and methods for regulating power in a medical device
US8210174B2 (en) 2006-09-29 2012-07-03 Nellcor Puritan Bennett Llc Systems and methods for providing noise leveling in a breathing assistance system
US7891354B2 (en) 2006-09-29 2011-02-22 Nellcor Puritan Bennett Llc Systems and methods for providing active noise control in a breathing assistance system
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CN101414800B (en) * 2008-11-27 2012-08-22 奇瑞汽车股份有限公司 Calibration system and calibration method for position sensor of motor rotor
DE102009028170A1 (en) 2009-07-31 2011-02-10 Robert Bosch Gmbh Commutated electric drive and method for controlling a commutated electric motor
US9399109B2 (en) * 2012-03-02 2016-07-26 Breathe Technologies, Inc. Continuous positive airway pressure (CPAP) therapy using measurements of speed and pressure
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EP1653904A2 (en) 2006-05-10
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CA2531889A1 (en) 2005-02-24
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