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 sightInfo
- 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
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.
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)
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 |
-
2000
- 2000-05-11 SE SE0001734A patent/SE0001734L/en not_active Application Discontinuation
-
2001
- 2001-05-08 AU AU5896901A patent/AU5896901A/en active Pending
- 2001-05-08 EP EP01932444A patent/EP1303906A2/en not_active Withdrawn
- 2001-05-09 WO PCT/SE2001/001009 patent/WO2001086801A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP1303906A2 (en) | 2003-04-23 |
WO2001086801A1 (en) | 2001-11-15 |
WO2001086801A8 (en) | 2002-05-16 |
AU5896901A (en) | 2001-11-20 |
SE0001734D0 (en) | 2000-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |