公开(公告)号：US09479096B2

公开(公告)日：2016-10-25

申请号：US14531224

申请日：2014-11-03

Applicant: Melexis Technologies NV

Inventor： Jan Heynlein ,  Thomas Freitag ,  Christian Paintz

IPC: H02P1/00 ,  H02P6/18

CPC classification number: H02P6/18 ,  H02P6/182

Abstract: A method is provided for determining a phase current direction and a zero-crossing moment of the phase current in a sinusoidally controlled brushless direct current motor. The brushless direct current motor comprises a coil per phase and the phase of the brushless direct current motor is driven by a half bridge driver. The half bridge driver comprises a high side field effect transistor and a low side field effect transistor. The method comprising the following steps: measuring the drain source voltage over the high side field effect transistor and low side field effect transistor, and determining the zero crossing moment of the phase current by determining the current direction based on the measured drain source voltages and by determining the moment the current changes direction.

Abstract translation: 提供一种用于确定正弦控制的无刷直流电动机中的相电流方向和相电流的零交叉力矩的方法。 无刷直流电动机每相包括线圈，无刷直流电动机的相位由半桥驱动器驱动。 半桥驱动器包括高边场效应晶体管和低边场效应晶体管。 该方法包括以下步骤：测量高侧场效应晶体管和低侧场效应晶体管上的漏极电压，并且通过基于测量的漏极源电压和通过测量的漏极源电压确定电流方向来确定相电流的过零点 确定当前改变方向的时刻。

公开(公告)号：US20140320103A1

公开(公告)日：2014-10-30

申请号：US14353201

申请日：2012-10-19

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Christian Paintz ,  Thomas Freitag ,  Heiko Grimm ,  Enrico Reinhardt

IPC: H02M3/158

CPC classification number: H02M3/1588 ,  H02M1/44 ,  H03K17/166 ,  Y02B70/1466

Abstract: A switching control circuit includes driving a flow of direct current through an at least partially inductive load. The switching control circuit is adapted for adjusting a control current in order to activate and/or deactivate a flow of current to a load terminal. The system comprises a timer element for initiating at least one timed adjustment of the control current during activation or deactivation of the flow of current through a first semiconductor switch of the circuit so as to anticipate a state change of a component of the switching control circuit. The controller is adapted for determining a timing for the timed adjustment in a predictive manner. A method employs the various features of the switching control circuit.

Abstract translation: 开关控制电路包括驱动通过至少部分感性负载的直流电流。 开关控制电路适于调节控制电流以激活和/或去激活到负载端子的电流。 该系统包括定时器元件，用于在通过电路的第一半导体开关的电流的激活或去激活期间启动控制电流的至少一次定时调整，以便预测开关控制电路的部件的状态变化。 控制器适于以预测方式确定定时调整的定时。 一种方法采用开关控制电路的各种特征。

公开(公告)号：US09537399B2

公开(公告)日：2017-01-03

申请号：US14353201

申请日：2012-10-19

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Christian Paintz ,  Thomas Freitag ,  Heiko Grimm ,  Enrico Reinhardt

IPC: H02M3/158 ,  H03K17/16 ,  H02M1/44

CPC classification number: H02M3/1588 ,  H02M1/44 ,  H03K17/166 ,  Y02B70/1466

Abstract: A switching control circuit includes driving a flow of direct current through an at least partially inductive load. The switching control circuit is adapted for adjusting a control current in order to activate and/or deactivate a flow of current to a load terminal. The system comprises a timer element for initiating at least one timed adjustment of the control current during activation or deactivation of the flow of current through a first semiconductor switch of the circuit so as to anticipate a state change of a component of the switching control circuit. The controller is adapted for determining a timing for the timed adjustment in a predictive manner. A method employs the various features of the switching control circuit.

Abstract translation: 开关控制电路包括驱动通过至少部分感性负载的直流电流。 开关控制电路适于调节控制电流以激活和/或去激活到负载端子的电流。 该系统包括定时器元件，用于在通过电路的第一半导体开关的电流的激活或去激活期间启动控制电流的至少一次定时调整，以便预测开关控制电路的部件的状态变化。 控制器适于以预测方式确定定时调整的定时。 一种方法采用开关控制电路的各种特征。

公开(公告)号：US09722529B2

公开(公告)日：2017-08-01

申请号：US14922329

申请日：2015-10-26

Applicant: Melexis Technologies NV

Inventor： Christian Paintz

IPC: H02P27/08 ,  H02P6/08 ,  H02P6/182 ,  H02P6/14

CPC classification number: H02P27/08 ,  H02P6/085 ,  H02P6/15 ,  H02P6/182 ,  H02P2209/11 ,  H02P2209/13

Abstract: A method for assisting in operating a PWM driven motor comprising for at least one phase of the PWM driven motor: generating a pulse width modulated phase voltage scheme according to a desired phase profile with a base scaling factor, by time multiplexing a first pulse and at least a further pulse within a pulse width modulation period of the phase the first pulse having a pulse width according to a first profile, for that rotor position, multiplied with a first scaling factor, the first profile being in phase with the desired phase profile, and the at least a further pulse having a pulse width corresponds with a further profile, for that rotor position, multiplied with a further scaling factor, the further profile being not in phase with the desired phase profile, whereby the first pulse and the at least one further pulse are positioned within the pulse width modulation period of the phase in at least partially non-overlapping way.