STEUERSCHATUNG FÜR EINEN ELEKTRONISCH KOMMUTIERTEN MOTOR
    1.
    发明授权
    STEUERSCHATUNG FÜR EINEN ELEKTRONISCH KOMMUTIERTEN MOTOR 有权
    TAX索赔维护电子换向电动机

    公开(公告)号:EP1839388B1

    公开(公告)日:2008-07-09

    申请号:EP06706257.0

    申请日:2006-01-17

    CPC分类号: H02P6/15 H02P6/28

    摘要: The invention relates to a control circuit for an electronically commuted motor (120) with a power stage (122), comprising at least two semiconductor switches (216, 218) for control of the motor current. The semiconductor switches may be controlled by commuting signals. The control circuit comprises a current measuring body (170) for the generation of a motor current control parameter (I), dependent on the motor current, a base diode (240), arranged in series with the current measuring body and between the current measuring body and the at least two semiconductor switches and a motor current adjuster (180), which may be influenced by the commutation signal depending on the motor current control parameter.

    STEUERSCHATUNG FÜR EINEN ELEKTRONISCH KOMMUTIERTEN MOTOR
    6.
    发明公开
    STEUERSCHATUNG FÜR EINEN ELEKTRONISCH KOMMUTIERTEN MOTOR 有权
    TAX索赔维护电子换向电动机

    公开(公告)号:EP1839388A1

    公开(公告)日:2007-10-03

    申请号:EP06706257.0

    申请日:2006-01-17

    CPC分类号: H02P6/15 H02P6/28

    摘要: The invention relates to a control circuit for an electronically commuted motor (120) with a power stage (122), comprising at least two semiconductor switches (216, 218) for control of the motor current. The semiconductor switches may be controlled by commuting signals. The control circuit comprises a current measuring body (170) for the generation of a motor current control parameter (I), dependent on the motor current, a base diode (240), arranged in series with the current measuring body and between the current measuring body and the at least two semiconductor switches and a motor current adjuster (180), which may be influenced by the commutation signal depending on the motor current control parameter.

    VERFAHREN ZUM REGELN EINER PHYSIKALISCHEN GRÖSSE BEI EINEM ELEKTRONISCH KOMMUTIERTEN MOTOR, UND MOTOR ZUR DURCHFÜHRUNG EINES SOLCHEN VERFAHRENS
    7.
    发明授权
    VERFAHREN ZUM REGELN EINER PHYSIKALISCHEN GRÖSSE BEI EINEM ELEKTRONISCH KOMMUTIERTEN MOTOR, UND MOTOR ZUR DURCHFÜHRUNG EINES SOLCHEN VERFAHRENS 有权
    一种用于控制物理尺寸在电子换向电机和发动机用于实施所述方法

    公开(公告)号:EP1346463B1

    公开(公告)日:2006-03-29

    申请号:EP01272496.9

    申请日:2001-12-21

    IPC分类号: H02P6/14 H02P6/00

    CPC分类号: H02P6/15 H02P6/28 H02P2209/07

    摘要: The invention relates to a method for controlling a physical variable in an electronically commutated motor, according to which the current is supplied to the stator winding arrangement (102) of the motor in the form of current blocks. The distance (BW) between switch-on command and cut-off command for controlling said current blocks, that is the length (BW) of the control signals, is influenced by a control device, and the current effective value of said current blocks is influenced by adjusting a duty factor (pwm). Upper and lower limits are set to the length (BW) of the control signals. When the control signal becomes shorter than a predetermined lower limit value, the duty factor (pwm) is reduced, thereby reducing the effective value of the current and increasing the length (BW) of the current blocks. When the control signal becomes longer than a predetermined upper limit value, the duty factor (pwm) is increased, thereby increasing the effective value of the current and reducing the length (BW) of the current blocks in compensation thereof.

    VERFAHREN ZUM BETRIEB EINES EINSTRÄNGIGEN ELEKTRONISCH KOMMUTIERTEN MOTORS AN EINER GLEICHSPANNUNGSQUELLE, UND MOTOR ZUR DURCHFÜHRUNG EINES SOLCHEN VERFAHRENS
    9.
    发明公开
    VERFAHREN ZUM BETRIEB EINES EINSTRÄNGIGEN ELEKTRONISCH KOMMUTIERTEN MOTORS AN EINER GLEICHSPANNUNGSQUELLE, UND MOTOR ZUR DURCHFÜHRUNG EINES SOLCHEN VERFAHRENS 有权
    一种用于操作搁浅电子换向电机,直流电源和发动机用于实施所述方法

    公开(公告)号:EP2158673A1

    公开(公告)日:2010-03-03

    申请号:EP07725725.1

    申请日:2007-06-01

    摘要: The invention relates to an electronically commutated motor (20) operated on a direct current source (UB), for example, a direct current intermediate circuit (46). The motor has a permanent magnetic rotor (28) and a stator having a stator winding phase (26) in which an alternating voltage is induced during operation by the permanent magnetic rotor (28). The motor further has an H-bridge circuit (22) comprising power semiconductors (T1 to T4). The circuit (22) has an upper bridge half (38) that is connected during operation to a pole (46) of the direct current source (UB) and a lower bridge half (56) that is connected during operation to the other pole (50) of the direct current source (UB). The stator winding phase (26) is disposed in the diagonal (24) of the H-bridge circuit (22) and, during operation, a current pulse flows through it, first in one direction and then in the other. One commutation process each occurs between two consecutive current pulses (i1, i1'). At the beginning of a commutation process, the currently conducting semiconductor switch of the one bridge half (38) is switched off in order to interrupt the energy supply from the direct current source (UB) such that a circulating current (i*; -i*) flows through the stator winding phase (26) in the other bridge half (56), the semiconductor circuit, which continues to be controlled in a conductive fashion, and a free-wheeling diode (58; 60) associated with the closed semiconductor circuit of this other bridge half. Said circulating current converts the energy stored in the magnetic circuit of the motor (20) at least partially into drive energy for the permanently magnetic rotor (28), thus adjusting to zero. Said current-free state of the stator winding phase (26) is detected in a sensor-free fashion by measuring the voltage (uind) that is induced in the stator winding phase (26) by the rotor (28). The previously conducting semiconductor circuit of the other bridge half (56) is blocked. The commutation process is completed in that a current is supplied to the stator winding phase (26) from the direct current source (UB) in a direction opposite to the direction in which the current was flowing before the commutation process. The invention further relates to a motor for performing such a method.