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公开(公告)号：US20170373623A1
公开(公告)日：2017-12-28
申请号：US15629977
申请日：2017-06-22
Applicant: Melexis Technologies NV
Inventor： Marcel Jakobus Gerardus BRAAT , Marc LAMBRECHTS
Abstract: A method for detecting stall of a multiphase motor operated in a sinusoidal micro-stepped mode. The method comprises: a) measuring at least one phase current and/or measuring the sum of all phase currents at regular time intervals synchronous with the micro-steps, b) calculating the difference between the measured phase current at a first moment and the measured phase current of the same phase at a previous moment and/or the difference between the measured sum of all phase currents at a first moment and the measured sum of all phase currents at a previous synchronous moment, c) analyzing the series of obtained current differences so as to generate a stall detection signal.
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公开(公告)号：US20170093314A1
公开(公告)日：2017-03-30
申请号：US15276887
申请日：2016-09-27
Applicant: Melexis Technologies NV
Inventor： Michiel ESVELT , Robert FILUSCH
Abstract: Method of starting a three-phase sinusoidal BLDC motor, comprising: a) determining an initial position of the rotor; b) applying a first set of sinusoidal energizing signals to the windings, corresponding to a set of sinusoidal waveforms shifted apart by 120° and 240° sampled at a first angle (φ1); and maintaining the energizing signals for allowing the rotor to move to a first angular position; c) while maintaining the energizing signals, monitoring two of the phase currents, and determining whether a predefined condition is satisfied, comprising testing whether a ratio of two total current values is equal to a predefined value, and if true, to repeat steps b) and c), but with second and further sinusoidal energizing signals sampled at a second or further angular position, selected from a limited group of discrete angular positions.
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公开(公告)号：US09543504B2
公开(公告)日：2017-01-10
申请号：US14918704
申请日：2015-10-21
Applicant: Melexis Technologies NV , X-FAB Semiconductor Foundries AG
Inventor： Christian Schott , Peter Hofmann
CPC classification number: H01L43/065 , G01R33/07 , G01R33/077 , H01L43/04 , H01L43/14
Abstract: A semiconductor chip for measuring a magnetic field based on the Hall effect. The semiconductor chip comprises an electrically conductive well having a first conductivity type, in a substrate having a second conductivity type. The semiconductor chip comprises at least four well contacts arranged at the surface of the well, and having the first conductivity type. The semiconductor chip comprises a plurality of buffer regions interleaved with the well contacts and having the first conductivity type. The buffer regions are highly conductive and the buffer region dimensions are such that at least part of the current from a well contact transits through one of its neighboring buffer regions.
Abstract translation: 一种用于基于霍尔效应测量磁场的半导体芯片。 在具有第二导电类型的衬底中，半导体芯片包括具有第一导电类型的导电阱。 半导体芯片包括布置在阱表面的至少四个阱触点，并且具有第一导电类型。 半导体芯片包括与阱触点交错并具有第一导电类型的多个缓冲区。 缓冲区域是高导电性的，并且缓冲区域尺寸使得来自阱接触点的电流的至少一部分经过其相邻缓冲区域之一。
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94.发明申请公开(公告)号：US20160241172A1
公开(公告)日：2016-08-18
申请号：US15019032
申请日：2016-02-09
Applicant: Melexis Technologies NV
Inventor： Dirk LEMAN , Huowen ZHANG , Xing ZUO
Abstract: A single phase motor drive circuit for driving a single phase motor, comprising: a timer unit for receiving a sensor signal indicative of an angular position of a rotor, and for providing a timing signal in phase with the sensor signal; a waveform generator for generating a waveform for energizing the motor, the waveform generator being adapted for receiving the timing signal and a configurable setting, and for generating the waveform based thereon; a configuration unit for receiving an input signal indicative of a desired motor speed, the configuration unit being adapted for generating the configurable setting as a function of the input signal, and for providing the setting to the waveform generator to dynamically configure the waveform generator. A method, an assembly and a cooling system includes the single phase motor driver circuit.
Abstract translation: 一种用于驱动单相电动机的单相电动机驱动电路，包括：定时器单元，用于接收指示转子的角位置的传感器信号，并用于提供与传感器信号同相的定时信号; 用于产生用于激励电动机的波形的波形发生器，所述波形发生器适于接收所述定时信号和可配置设置，并用于基于所述波形产生所述波形; 配置单元，用于接收表示期望的电动机速度的输入信号，所述配置单元适于根据所述输入信号生成所述可配置设置，以及将所述设置提供给所述波形发生器以动态地配置所述波形发生器。 一种方法，组件和冷却系统包括单相电机驱动电路。
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公开(公告)号：US20160218276A1
公开(公告)日：2016-07-28
申请号：US15003608
申请日：2016-01-21
Applicant: Melexis Technologies NV
Inventor： Jian Chen , Robert Racz
CPC classification number: H01L43/04 , B29C45/14 , B29C45/14655 , G01R33/0047 , G01R33/072 , H01L21/56 , H01L21/561 , H01L21/565 , H01L25/16 , H01L43/06 , H01L43/12 , H01L2224/05554 , H01L2224/48247 , H01L2224/49171 , H01L2924/0002 , H01L2924/19105 , H01L2924/00
Abstract: The invention relates to a method for the production of current sensors which comprise a plastic housing made in an IC technology. The key steps are to mount on a leadframe and wire bond semiconductor chips having Hall sensors, to place the leadframe in an injection mold, to close the injection mold with a first mold insert and to inject plastic material, wherein each semiconductor chip is packed into an intermediate casing including a flat surface having alignment structures. Then the injection mold is opened and a current conductor section is placed on the flat surface of each intermediate casing, the current conductor section having counter structures matching the alignment structures so that it is automatically aligned and held. Then the injection mold is closed with a second mold insert and plastic material injected to form the final housing of the current sensors. It is also possible to use two different injection molds.
Abstract translation: 本发明涉及一种用于生产电流传感器的方法，其包括由IC技术制成的塑料外壳。 关键步骤是安装在具有霍尔传感器的引线框架和引线框架半导体芯片上，以将引线框架放置在注射模具中，用第一模具插入件封闭注射模具并注入塑料材料，其中每个半导体芯片被包装成 包括具有对准结构的平坦表面的中间壳体。 然后，注射模具打开，并且电流导体部分放置在每个中间壳体的平坦表面上，电流导体部分具有与对准结构匹配的对置结构，使得其自动对准和保持。 然后注射模具用第二模具插入件封闭并注入塑料材料以形成电流传感器的最终壳体。 也可以使用两种不同的注射模具。
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Patent Agency Ranking
公开(公告)号：US20150369669A1
公开(公告)日：2015-12-24
申请号：US14744410
申请日：2015-06-19
Applicant: MELEXIS TECHNOLOGIES NV
Inventor： Viktor KASSOVSKI , Luc BUYDENS , Sam MADDALENA
CPC classification number: G01J5/12 , G01J5/0803 , G01J5/16 , G01J2005/0048 , G01J2005/066
Abstract: An infrared sensor for temperature sensing comprises a cap covering a substrate; an IR-radiation filtering window in the cap transparent to IR radiation; a first sensing element comprising a set of N thermocouples on the substrate covered by the cap, whose hot junctions may receive radiation; a second sensing element comprising a set of N thermocouples on the substrate covered by the cap whose hot junctions may not receive radiation; first connection modules for connecting a number N1 of thermocouples of the first sensing element, second connection modules for connecting a number N2 of thermocouples of the second sensing; connecting means for connecting an output of the first connection modules of the first sensing element with an output of the second connection modules of the second sensing element, and an output of the combined outputs of the sensing elements.
Abstract translation: 用于温度感测的红外传感器包括覆盖基板的盖子; IR辐射中的IR辐射过滤窗对IR辐射透明; 第一感测元件包括在由帽盖覆盖的衬底上的一组N个热电偶，其热接点可以接收辐射; 第二感测元件，包括一组N个热电偶，所述N个热电偶在所述基板上被所述盖子覆盖，所述盖子的热接头可能不接收辐射; 用于连接第一感测元件的N1个热电偶的第一连接模块，用于连接第二感测的热电偶的数量N2的第二连接模块; 连接装置，用于将第一感测元件的第一连接模块的输出与第二感测元件的第二连接模块的输出连接，以及感测元件的组合输出的输出。
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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。
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98.发明申请公开(公告)号：US20140062364A1
公开(公告)日：2014-03-06
申请号：US14013674
申请日：2013-08-29
Applicant: MELEXIS TECHNOLOGIES NV
Inventor： Viktor PETRI , Thomas FREITAG
IPC: H02P6/18
Abstract: A method for driving a BLDC motor comprising at least three stator windings, comprising: a) determining a time period, and energizing during the time period two of the windings and leaving a third winding un-energized, based on a first motor state; b) measuring a first voltage representative for the back-EMF generated in the un-energized winding shortly before expiry of the time period; c) applying a commutation at expiry of the current time period; d) measuring a second voltage shortly after the commutation, and calculating a subsequent time period; e) repeating steps b) and c). An electrical circuit and a controller are provided for performing these methods.
Abstract translation: 一种用于驱动包括至少三个定子绕组的BLDC电动机的方法，包括：a）基于第一电动机状态确定时间段，并且在所述绕组的两个时间段期间激励并使第三绕组未通电; b）在该时间段到期之前不久，测量代表在未通电绕组中产生的反电动势的第一电压; c）在当前期限届满时进行换货; d）在换向之后不久测量第二电压，并计算随后的时间段; e）重复步骤b）和c）。 提供电路和控制器来执行这些方法。
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99.发明申请Method and System for Powering and Measuring Positions of a Plurality of DC-Motors Over a Wire Interface 有权通过线路接口为多个直流电机供电和测量位置的方法和系统公开(公告)号：US20140002000A1
公开(公告)日：2014-01-02
申请号：US13932488
申请日：2013-07-01
Applicant: Melexis Technologies NV
Inventor： Bart LAUWAERT , Marc LAMBRECHTS
IPC: H02P8/34
CPC classification number: H02P8/34 , H02P5/68 , H02P7/2913
Abstract: A system comprising a motor controller for providing a plurality of first power signals and a single common second power signal to a motor module comprising a plurality of potentiometers connectable to a plurality of DC-motors. The power signals and feedback signals are sent over a wire interface having less than three wires per motor. A position feedback signal is read when a motor is being powered. The power signals may be DC-signals, pulsed or tri-state signals. The circuit may have a voltage divider consisting of two or three resistors. The actual motor position can be derived from the position feedback signals using one of two formulas or curves. A motor controller, and a method for driving a plurality of DC-motors is also disclosed.
Abstract translation: 一种系统，包括用于向电动机模块提供多个第一功率信号和单个公共第二功率信号的电动机控制器，所述电动机模块包括可连接到多个DC电动机的多个电位计。 电力信号和反馈信号通过每个电机具有少于三根电线的电线接口发送。 当电机通电时，读取位置反馈信号。 功率信号可以是直流信号，脉冲或三态信号。 该电路可以具有由两个或三个电阻器组成的分压器。 可以使用两个公式或曲线之一从位置反馈信号中导出实际的电机位置。 还公开了一种电动机控制器和用于驱动多个DC电动机的方法。
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公开(公告)号：US20250133637A1
公开(公告)日：2025-04-24
申请号：US18905861
申请日：2024-10-03
Applicant: Melexis Technologies NV
Inventor： Raik FROST
IPC: H05B45/28
Abstract: A method and an apparatus for temperature compensation are described. The method includes receiving a target color point for light emitted by at least one light-emitting device, determining an operating electrical energy of the at least one light-emitting device based on a correlation of at least one temperature value of the at least one light-emitting device with the received target-color point and operating the at least one light-emitting device based on the determined operating electrical energy.
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