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SE0001734L - Arrangement for controlling a directional unit by means of a three-phase brushless DC motor, preferably a weapon sight - Google Patents

Arrangement for controlling a directional unit by means of a three-phase brushless DC motor, preferably a weapon sight

Info

Publication number
SE0001734L
SE0001734L SE0001734A SE0001734A SE0001734L SE 0001734 L SE0001734 L SE 0001734L SE 0001734 A SE0001734 A SE 0001734A SE 0001734 A SE0001734 A SE 0001734A SE 0001734 L SE0001734 L SE 0001734L
Authority
SE
Sweden
Prior art keywords
motor
arrangement
controlling
pwm
amplifier
Prior art date
Application number
SE0001734A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE0001734D0 (en
Inventor
Stefan Lindstroem
Ulf Nilsson
Original Assignee
Saab Ab
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 Saab Ab filed Critical Saab Ab
Priority to SE0001734A priority Critical patent/SE0001734L/en
Publication of SE0001734D0 publication Critical patent/SE0001734D0/en
Priority to EP01932444A priority patent/EP1303906A2/en
Priority to AU5896901A priority patent/AU5896901A/en
Priority to PCT/SE2001/001009 priority patent/WO2001086801A1/en
Publication of SE0001734L publication Critical patent/SE0001734L/en

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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08—Arrangements for controlling the speed or torque of a single motor
    • H02P6/085—Arrangements for controlling the speed or torque of a single motor in a bridge configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

In an arrangement a three-phase brushless direct-current motor (MOT) is utilized for controlling a weapon sight (VP), using electrical signals. The arrangement comprises an analogue or digital motor amplifier for sinusoidal commutation, to which the electrical signals can be fed. The windings or phases of the motor are connected to individual pairs of drive transistors incorporated in a transistor bridge. The motor amplifier is arranged to generate pulse-width-modulated signals (PWM-R, PWM-S and PWM-T) and using these to control the drive transistors in the bridge and thereby cause generation of the phase drive currents in the motor's windings. Galvanically-isolated circuits (HE, HS and HE', HS' respectively) effect current feedback from the motor to the inpuT of the amplifier.
SE0001734A 2000-05-11 2000-05-11 Arrangement for controlling a directional unit by means of a three-phase brushless DC motor, preferably a weapon sight SE0001734L (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE0001734A SE0001734L (en) 2000-05-11 2000-05-11 Arrangement for controlling a directional unit by means of a three-phase brushless DC motor, preferably a weapon sight
EP01932444A EP1303906A2 (en) 2000-05-11 2001-05-08 Arrangement for controlling a unit that can be aimed, preferably a weapon sight, by means of a three-phase brushless direct-current motor
AU5896901A AU5896901A (en) 2000-05-11 2001-05-08 Arrangement for controlling a unit that can be aimed, preferably a weapon sight,by means of a three-phase brushless direct-current motor
PCT/SE2001/001009 WO2001086801A1 (en) 2000-05-11 2001-05-09 Arrangement for controlling a unit that can be aimed, preferably a weapon sight, by means of a three-phase brushless direct-current motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0001734A SE0001734L (en) 2000-05-11 2000-05-11 Arrangement for controlling a directional unit by means of a three-phase brushless DC motor, preferably a weapon sight

Publications (2)

Publication Number Publication Date
SE0001734D0 SE0001734D0 (en) 2000-05-11
SE0001734L true SE0001734L (en) 2001-11-12

Family

ID=20279627

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0001734A SE0001734L (en) 2000-05-11 2000-05-11 Arrangement for controlling a directional unit by means of a three-phase brushless DC motor, preferably a weapon sight

Country Status (4)

Country Link
EP (1) EP1303906A2 (en)
AU (1) AU5896901A (en)
SE (1) SE0001734L (en)
WO (1) WO2001086801A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0274192A (en) * 1988-09-08 1990-03-14 Toshiba Corp Power conversion device
US5254926A (en) * 1991-11-04 1993-10-19 Ford Motor Company Current-mode hysteresis control for controlling a motor
JPH09266695A (en) * 1996-03-28 1997-10-07 Mitsubishi Electric Corp Frequency converter
JP3346223B2 (en) * 1997-06-10 2002-11-18 株式会社日立製作所 Motor control method and motor control system

Also Published As

Publication number Publication date
SE0001734D0 (en) 2000-05-11
EP1303906A2 (en) 2003-04-23
WO2001086801A8 (en) 2002-05-16
WO2001086801A1 (en) 2001-11-15
AU5896901A (en) 2001-11-20

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Legal Events

Date Code Title Description
NAV Patent application has lapsed