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

CPC classification number: H02P6/182 ,  H02P6/30

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。

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。

公开(公告)号：WO2013167631A1

公开(公告)日：2013-11-14

申请号：PCT/EP2013/059545

申请日：2013-05-07

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： HUBER, Samuel ,  RAMAN, Johan ,  ROMBOUTS, Pieter ,  VAN DER WIEL, Appolonius Jacobus

IPC: G01L1/18 ,  G01R33/07

CPC classification number: G01L1/2293 ,  G01L1/125 ,  G01L1/18 ,  G01R33/0029 ,  G01R33/0035 ,  G01R33/07

Abstract: The invention relates to a method for determining isotropic stress by means of a Hall element which has a plate-shaped area made of a doped semiconductor material and comprises four contacts contacting the plate-shaped area. The contacts form corners of a quadrangle, two neighbouring corners of the quadrangle defining an edge thereof. The method comprises determining at least one van der Pauw transresistance value in at least one van der Pauw measurement set-up of the Hall element, wherein the four contacts of the Hall element form contact pairs, a contact pair comprising two contacts which are neighbouring corners of the quadrangle. In this set-up, one contact pair is used for supplying a current and the other contact pair is used for measuring a voltage. A relationship between the supplied current and the measured voltage defines the Van der Pauw transresistance value. The method furthermore comprises determining a stress signal which depends at least on the at least one Van der Pauw transresistance value, and determining the isotropic stress by comparing the determined stress signal with a predetermined reference stress signal which is temperature-dependent.

Abstract translation: 本发明涉及一种通过霍尔元件确定各向同性应力的方法，该霍尔元件具有由掺杂的半导体材料制成的板状区域，并且包括接触板形区域的四个触点。 触点形成四边形的角部，四边形的两个相邻的角限定其边缘。 该方法包括在霍尔元件的至少一个范德堡测量设置中确定至少一个范德低阻抗值，其中霍尔元件的四个触点形成接触对，触点对包括两个相邻角部的触点 的四边形。 在该设置中，使用一个触点对来提供电流，另一个触点对用于测量电压。 供电电流和测量电压之间的关系定义了范德波沃跨阻值。 该方法还包括确定至少依赖于至少一种范德高阻抗值的应力信号，以及通过将所确定的应力信号与温度相关的预定参考应力信号进行比较来确定各向同性应力。

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.

公开(公告)号：US12282054B2

公开(公告)日：2025-04-22

申请号：US18500249

申请日：2023-11-02

Applicant: Melexis Technologies NV

Inventor： Francois Piette ,  Cliff De Locht ,  Axel Fanget ,  Andreas Ott ,  Andreas Laute ,  Thomas Freitag

IPC: G01R31/28

Abstract: A system for characterizing a transistor circuit which has a local minimum in its transfer characteristic by finding its local minimum. The system comprises: a bias voltage generator for generating a toggling signal; a multiplier configured for multiplying an electrical signal which is a function of the drain source current of the transistor circuit, with a waveform alternating between two predefined values synchronously with the toggling signal; a first integrator configured for integrating the electrical signal from the multiplier, and wherein if more integrators are present, linear combinations of output signals of the integrators are provided to the further integrators; a summator configured for summing the toggling signal and an integration signal and configured for outputting the sum to the gate of the transistor circuit.

公开(公告)号：US12135670B2

公开(公告)日：2024-11-05

申请号：US18315032

申请日：2023-05-10

Applicant: Melexis Technologies NV

Inventor： Kevin Berlit ,  Jorgen Sturm

IPC: G06F13/42

Abstract: A method of operating a plurality of driving units for powering electronic units is described. The method includes interchanging a data frame including a bit sequence, between a master control unit and at least one of a plurality of driving units at slave nodes. The method includes applying an ID field for addressing at least one driving unit, and applying a data field comprising information and/or instructions regarding the status of the electronic units. Applying the ID field comprises indicating the driving unit address using a first bit sub-string comprising N bits, allowing the master control unit to identify whether data should be received or transmitted, performing a data length decoding step, and adding a further bit string to the data field including information for carrying out an action by the driving unit.

公开(公告)号：US20240288325A1

公开(公告)日：2024-08-29

申请号：US18587396

申请日：2024-02-26

Applicant: Melexis Technologies NV

Inventor： Ben MAES ,  Appo VAN DER WIEL ,  Johan VERGAUWEN

IPC: G01L9/00 ,  G01L9/06 ,  G01L9/08 ,  G01L27/00

CPC classification number: G01L9/0054 ,  G01L9/065 ,  G01L9/08 ,  G01L27/005

Abstract: A semiconductor pressure sensor comprising a membrane, delineated by an edge, and a group of neighboring piezo resistors: a first pair of piezo resistors near the edge of the membrane (a first piezo resistor RTmemb, a second piezo resistor RLmemb); a second pair of piezo resistors (a third piezo resistor RTref, a fourth piezo resistor RLref) at a position where applied pressure causes reduced surface stress compared to surface stress at the position of the first and the second piezo resistor. A signal from the first piezo resistor and a signal from the second piezo resistor, corrected with a signal from the third piezo resistor and a signal from the fourth piezo resistor, are used as a measure of a pressure on the membrane.

公开(公告)号：US20240159820A1

公开(公告)日：2024-05-16

申请号：US18500249

申请日：2023-11-02

Applicant: Melexis Technologies NV

Inventor： Francois PIETTE ,  Cliff DE LOCHT ,  Axel FANGET ,  Andreas OTT ,  Andreas LAUTE ,  Thomas FREITAG

IPC: G01R31/28

CPC classification number: G01R31/2837 ,  G01R31/287

Abstract: A system for characterizing a transistor circuit which has a local minimum in its transfer characteristic by finding its local minimum. The system comprises: a bias voltage generator for generating a toggling signal; a multiplier configured for multiplying an electrical signal which is a function of the drain source current of the transistor circuit, with a waveform alternating between two predefined values synchronously with the toggling signal; a first integrator configured for integrating the electrical signal from the multiplier, and wherein if more integrators are present, linear combinations of output signals of the integrators are provided to the further integrators; a summator configured for summing the toggling signal and an integration signal and configured for outputting the sum to the gate of the transistor circuit.

公开(公告)号：US20240031239A1

公开(公告)日：2024-01-25

申请号：US18355815

申请日：2023-07-20

Applicant: Melexis Technologies NV

Inventor： Raik FROST ,  Thomas FREITAG ,  Michael FREY ,  Heiko LEUTERT

IPC: H04L41/12

CPC classification number: H04L41/12 ,  H04L67/12

Abstract: A method for autoconfiguration of a plurality of nodes in a linear network allows extracting the address and position of each node. The nodes are identified by a unique identifier. The method comprises choosing a node in a network and extracting its identifier, and for the first node to the last but one node, transmitting a current in the network from the chosen node, and reading the direction of the current flowing through at least the nodes not chosen in previous iteration cycles. The identifier is linked with the direction of the current for said not chosen nodes, obtaining the position of said not chosen nodes relative to the chosen node. These steps are repeated by choosing a different node not chosen before. Autoconfiguration is finished when the identifier of each node is extracted, and the physical position of each node is determined.

公开(公告)号：US20230386753A1

公开(公告)日：2023-11-30

申请号：US18310202

申请日：2023-05-01

Applicant: Melexis Technologies NV

Inventor： Appo VAN DER WIEL ,  Thomas FREITAG

IPC: H01G4/38 ,  H01G4/33

CPC classification number: H01G4/385 ,  H01G4/33 ,  H01G4/012

Abstract: A trench capacitor includes a plurality of unit trench capacitors arranged in a 2D repetitive pattern in a substrate. The unit trench capacitors are separated by elongated trenches or elongated walls between the unit trench capacitors. The trench capacitor includes a plurality of stress compensation elements. Each unit trench capacitor has one or more closed trenches, with each trench further having a bottom electrode, a top electrode, and a dielectric between the bottom electrode and the top electrode. The unit trench capacitors are connected in parallel and the stress compensation elements are arranged between the unit trench capacitors such that they interrupt the elongated walls or trenches.