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公开(公告)号：US10341026B2
公开(公告)日：2019-07-02
申请号：US16090872
申请日：2017-03-27
申请人： AROS ELECTRONICS AB
发明人： Jerker Hellström , Per Lundberg , Magnus Wide
IPC分类号： G06F13/40 , H04L12/40 , H04B10/278
摘要： An optical bus system (1) having a start-up state and at least one operating state is disclosed. The optical bus system (1) includes a mechanical support structure (21) arranged to receive and hold a master module (2) having a downstream optical interface (3) and a set of slave modules (6) each having an upstream optical interface (7) and a downstream optical interface (8). The modules are attached to the mechanical support structure (21) such that optical interfaces of adjacent modules are aligned and in close proximity to each other in order to enable optical communication (24, 25) between adjacent modules. Each slave module (6) is further provided with circuitry to form one or two shunting signal paths (30, 31) depending on operating state after an addressing procedure is completed in the start-up state. Hereby, it is e.g. possible to realize a robust and cost-efficient optical bus system with high bandwidth capability.
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公开(公告)号：US11497142B2
公开(公告)日：2022-11-08
申请号：US17276915
申请日：2019-10-03
申请人： AROS ELECTRONICS AB
发明人： Jerker Hellström
摘要： An assembly (110) for dissipating heat generated by a heat generating electrical component (16) which is surface mounted on a circuit board (11) in a surface mounting process. The assembly comprises a heat buffer (120) made of a thermally and electrically conducing material, and being surface mounted on the circuit board (11) so as to be soldered to a thermal flag (18) of the heat generating electrical component (16). The assembly further comprises a heat sink (12) in thermal contact with the heat buffer, and a galvanic separation (13) between the heat buffer and heat sink. The heat capacitance of the heat buffer can absorb short term increases in heat dissipation from the electrical component, before the heat is further dissipated to the galvanically separated heat sink. This may drastically improve performance of the surface mounted component.
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公开(公告)号：US11955882B2
公开(公告)日：2024-04-09
申请号：US17774636
申请日：2020-11-06
申请人： AROS ELECTRONICS AB
CPC分类号： H02M1/322 , B60L3/003 , B60L15/007 , B60L50/60 , B60L2210/10 , B60L2240/529
摘要： An active discharge circuit for electric vehicle inverter, the active discharge circuit intended to be connected in parallel with a DC link capacitor connected between positive and negative lines of a DC power link, wherein the circuit comprises a dissipative current source, a switch connected in series with the current source between the DC lines, and a controller connected to the switch and arranged to apply an activation signal in dependence of a control signal, the activation signal placing the switch in a conducting state, wherein the current source is configured to draw a discharge current and dissipate any energy stored in the DC link capacitor when the switch is in the conducting state. As long as the switch is closed by the activation signal, the current source will draw a constant current and dissipate power, and the voltage across the DC link capacitor will decrease linearly.
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公开(公告)号：US20210378133A1
公开(公告)日：2021-12-02
申请号：US17276915
申请日：2019-10-03
申请人： AROS ELECTRONICS AB
发明人： Jerker HELLSTRÖM
摘要： An assembly (110) for dissipating heat generated by a heat generating electrical component (16) which is surface mounted on a circuit board (11) in a surface mounting process. The assembly comprises a heat buffer (120) made of a thermally and electrically conducing material, and being surface mounted on the circuit board (11) so as to be soldered to a thermal flag (18) of the heat generating electrical component (16). The assembly further comprises a heat sink (12) in thermal contact with the heat buffer, and a galvanic separation (13) between the heat buffer and heat sink. The heat capacitance of the heat buffer can absorb short term increases in heat dissipation from the electrical component, before the heat is further dissipated to the galvanically separated heat sink. This may drastically improve performance of the surface mounted component.
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公开(公告)号：US4617971A
公开(公告)日：1986-10-21
申请号：US588866
申请日：1984-01-10
申请人： Jerker Hellstroem
发明人： Jerker Hellstroem
CPC分类号： D03D51/34 , D03D47/367
摘要： The present invention relates to a loom control system operable to stop a loom in the presence of a yarn breakage. This loom comprises a feeding device having a yarn storage drum for temporarily storing the yarn and a yarn store sensor for sensing the quantity of yarn stored on the drum of the feeding device and for transmitting an electric sensor signal representing the quantity of yarn stored on the drum to the feeding device to control the operation of the feeding device and to thereby control the quantity of yarn stored on the drum. A monitor circuit is electrically connected to the yarn store sensor for receiving the sensor signal, wherein the monitor circuit derives information on yarn breakage before and/or after the feeding device from the sensor signal or its variation with respect to time to generate a stop signal for the loom.
摘要翻译： PCT No.PCT / EP83 / 00121 Sec。 371日期1984年1月10日 102（e）日期1984年1月10日PCT提交1983年5月11日PCT公布。 出版物WO83 / 04056 日本1983年11月24日。本发明涉及一种织机控制系统，其可操作以在存在断纱的情况下停止织机。 这种织机包括具有用于临时存储纱线的纱线存储滚筒和用于感测存储在进给装置的滚筒上的纱线数量的纱线存储传感器的进给装置，并且传送表示存储在进给装置上的纱线数量的电传感器信号 滚筒到送料装置，以控制进给装置的操作，从而控制存储在滚筒上的纱线的数量。 监视器电路与纱线存储传感器电连接以接收传感器信号，其中监视器电路从传感器信号或其相对于时间变化的时间导出在馈送装置之前和/或之后的纱线断裂信息以产生停止信号 为织机
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公开(公告)号：US20220393571A1
公开(公告)日：2022-12-08
申请号：US17774636
申请日：2020-11-06
申请人： AROS ELECTRONICS AB
摘要： An active discharge circuit for electric vehicle inverter, the active discharge circuit intended to be connected in parallel with a DC link capacitor connected between positive and negative lines of a DC power link, wherein the circuit comprises a dissipative current source, a switch connected in series with the current source between the DC lines, and a controller connected to the switch and arranged to apply an activation signal in dependence of a control signal, the activation signal placing the switch in a conducting state, wherein the current source is configured to draw a discharge current and dissipate any energy stored in the DC link capacitor when the switch is in the conducting state. As long as the switch is closed by the activation signal, the current source will draw a constant current and dissipate power, and the voltage across the DC link capacitor will decrease linearly.
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公开(公告)号：US11228229B2
公开(公告)日：2022-01-18
申请号：US16346175
申请日：2017-10-09
申请人： AROS ELECTRONICS AB
发明人： Patrik Magnusson , Josef Gårdstam
摘要： Described are, among other things, an electric machine (10) and a housing (12) for an electric machine. The electric machine (10) is provided with a liquid cooling arrangement and comprises a housing (12). The housing (12) is formed as one unitary element and comprises a first space (30) in which first space (30) a stator (21) and a rotor (23) are located. The rotor (23) has a shaft (20). Further, a second space (50) is formed in the housing (12). In the second space (50) electronics (54) for operation of the electric machine is located. Also, a third space (40) is formed in the housing (12), the third space (40) is located, seen in axial direction of the shaft (20), between the first space (30) and the second space (50). The third space (40) comprises at least one inlet (18) for a cooling liquid and at least one outlet (28) for the cooling liquid.
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公开(公告)号：US10778136B2
公开(公告)日：2020-09-15
申请号：US16345870
申请日：2017-11-10
申请人： AROS ELECTRONICS AB
摘要： A multiphase electric motor system and a method for controlling a multiphase electric motor system are disclosed. The method for controlling the multiphase electric motor system includes modulating a plurality of carrier signals with a plurality of modulation signals in order to generate a multiphase motor supply signal having a modulated phase signal for each phase of the electric motor. A set of time windows is defined in each period of the multiphase motor supply signal, where an individually selected group of modulated phase signals is modified by delaying the associated carrier signal in each time window, thereby generating a shifted multiphase motor supply signal and providing an efficient DC bus ripple reduction. Hereby, it is e.g. possible to use small filter capacitors/capacitor banks in electrical motor systems. An analogous multiphase electric generator system and method for controlling a multiphase electric generator system are disclosed.
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公开(公告)号：US10348233B2
公开(公告)日：2019-07-09
申请号：US15576499
申请日：2016-05-25
申请人： AROS ELECTRONICS AB
发明人： Jerker Hellström
摘要： An electrical motor system and a method for operating the electrical motor system are disclosed. The electrical motor system comprises a direct current (DC) source, a filter connected in parallel with the DC source and an electric motor with at least two sets of windings. A voltage signal is provided from the DC source to the inverter circuit where the signal is modulated. The modulated signal is then supplied from the inverter circuit to each set of windings with a respective time offset between each set of windings respectively, providing a very efficient DC bus ripple reduction. Hereby, it is e.g. possible to use small filter capacitors/capacitor banks in electrical motor systems.
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10.发明授权公开(公告)号：US08924017B2
公开(公告)日：2014-12-30
申请号：US11920542
申请日：2006-05-19
申请人： Jerker Hellström , Magnus Wide
发明人： Jerker Hellström , Magnus Wide
CPC分类号： H02P3/14 , B25J19/0004
摘要： An embodiment of the present invention discloses an apparatus for recyclable absorption of electric retardation energy from a multiple axis industrial robotics system, including a robot control unit and at least one drive unit, which generates the electrical retardation energy at retardation. By an apparatus according to the present invention, the electric retardation energy, which occurs when a drive unit is retarded and is transferred into generator mode, may be recycled by the brake unit of the apparatus, which accelerates a mechanical device connected to the brake unit. The electric retardation energy is thus transferred into kinetic energy that may be stored in mechanical devices. An embodiment of the present invention also refers to a corresponding method for recyclable absorption of electric retardation energy from a multiple axis industrial robotics system.
摘要翻译： 本发明的实施例公开了一种用于从包括机器人控制单元和至少一个驱动单元的多轴工业机器人系统可循环吸收电延迟能量的装置，其产生延迟的电延迟能量。 通过根据本发明的装置，当驱动单元被延迟并被转移到发电机模式时发生的电延迟能量可以通过装置的制动单元再循环，这加速了连接到制动单元的机械装置 。 因此，电延迟能量转移到可以存储在机械装置中的动能中。 本发明的一个实施方案还涉及用于从多轴工业机器人系统可回收吸收电延迟能量的相应方法。
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