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1. 发明公开

EP4456439A1 NFC CONTROLLER 审中-公开
公开(公告)号：EP4456439A1
公开(公告)日：2024-10-30
申请号：EP24170141.6
申请日：2024-04-15
申请人： STMicroelectronics International N.V.
发明人： GRUNDRICH, Christophe , KOVACIC, Kosta , LEDUC, Bruno
IPC分类号： H04B5/72 , H04B5/79 , H02J7/34
CPC分类号： H02J7/34 , H04B5/48
摘要： The present disclosure relates to an NFC controller comprising a first node (NVBAT) configured to be coupled to a battery; a second node (NVDD_TX) configured to receive a regulated voltage from an external dc/dc converter coupled to said first node ; a third node (RF01, RF02) configured to be coupled to an radiofrequency output of the NFC controller; said third node been configured to, in a first mode, be coupled either to the first or second nodes, and in a second mode, either to the first node or to first and second nodes.

2. 发明公开

EP4456409A1 MOTOR DRIVE CONTROL DEVICE 失效
公开(公告)号：EP4456409A1
公开(公告)日：2024-10-30
申请号：EP22910690.1
申请日：2022-11-17
申请人： Minebea Mitsumi Inc.
发明人： ARAKAWA, Yohei , HASEGAWA, Yasuyuki
IPC分类号： H02P6/28
CPC分类号： H02P6/28
摘要： The present invention measures, with high precision, the current of a coil of a motor. A motor drive control device (10) comprises: a control circuit (1) that generates a drive control signal (Sd) on the basis of a measured value of a current (i) flowing to a coil (31) of a motor (3); and a drive circuit (2) that drives the coil (31) on the basis of the drive control signal (Sd). The drive circuit (2) includes: a switch (SW1) and a switch (SW2) connected in series; a switch (SW3) and a switch (SW4) connected in series; a current detection element (R1) connected in series to the switch (SW1) and the switch (SW2); and a current detection element (R2) connected in series to the switch (SW3) and the switch (SW4). The coil (31) is connected between a node (A+) to which the switch (SW1) and the switch (SW2) are commonly connected, and a node (A-) to which the switch (SW3) and the switch (SW4) are commonly connected. The control circuit (1) measures the current (i) on the basis of an average value of a current (i1) flowing to the current detection element (R1) and a current (i2) flowing to the current detection element (R2).

3. 发明公开

EP4456408A1 MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE 失效
公开(公告)号：EP4456408A1
公开(公告)日：2024-10-30
申请号：EP21968847.0
申请日：2021-12-21
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： FUNAKOSHI, Masayuki , KUNIMITSU, Takahiro , OGAWA, Kenji , KOZUKI, Hiroyuki , YAGIHARA, Takashi , KIMURA, Takuya , OGIWARA, Kento , MATSUSHITA, Masaki
IPC分类号： H02P6/14 , H02P29/00
CPC分类号： H02P29/00 , H02P6/14
摘要： A motor control device according to the present disclosure includes: a motor drive circuit that outputs a drive current to a motor; a drive current detector; a main control unit, and an auxiliary control unit, wherein the main control unit has a first control signal generator that generates a first control signal based on a detected current signal; a first drive signal generator that generates a drive signal based on the first control signal, and a first switcher that switches to an output state of the motor drive circuit of the drive signal, and the auxiliary control unit has a second control signal generator that generates a second control signal; a second drive signal generator that generates the drive signal based on the second control signal, and a second switcher that switches to an output state of the motor drive circuit of the drive signal.

4. 发明公开

EP4456397A1 POWER DRIVING CIRCUIT AND DRIVING SYSTEM 失效
公开(公告)号：EP4456397A1
公开(公告)日：2024-10-30
申请号：EP23777798.2
申请日：2023-03-10
申请人： CRM ICBG (WUXI) CO., LTD.
发明人： LIU, Weizhong , ZHANG, Chao , JIANG, Yaping , LI, Jian , XIE, Zhiwei
IPC分类号： H02M1/08 , H02H5/04
CPC分类号： H02M1/32 , H02H5/04 , H02M1/08
摘要： Provided in the present invention is a power driving circuit. The power driving circuit comprises: a high/low-side driving module, which is used for performing turning-on and turning-off according to a cooperative control signal, and when turning-on is performed, generating a high-side driving signal according to a high-side input signal and generating a low-side driving signal according to a low-side input signal; a cooperative processing module, which is used for comparing an input voltage with a threshold voltage and generating the cooperative control signal, wherein the threshold voltage is switched between a first voltage and a second voltage according to the cooperative control signal; and a temperature sensing module, which is connected to an output end of the cooperative processing module, and is used for sensing a temperature change, generating a sensing signal that changes along with the temperature, generating a sensing increment, and controlling, according to the cooperative control signal, whether to output the sensing increment and the sensing signal in a superposed manner, wherein the input voltage is related to the sensing signal. By means of the power driving circuit provided in the present invention, the problem of inconsistent actions being present between IPMs in an existing driving system is solved.

5. 发明公开

EP4456396A1 OVERTEMPERATURE PROTECTION CIRCUIT, CONTROL CIRCUIT, AND OVERTEMPERATURE PROTECTION METHOD OF SWITCHING POWER SUPPLY 审中-公开
公开(公告)号：EP4456396A1
公开(公告)日：2024-10-30
申请号：EP24171072.2
申请日：2024-04-18
申请人： Diodes Incorporated , BCD Shanghai Micro-Electronics Company Limited
发明人： Zhao, Andong , Zhao, Feng , Gu, Zhuquan , Chen, Bo , Ying, Zheng , Xie, Yizhong
IPC分类号： H02M1/00 , H02M1/32 , H02M3/335 , H02M1/08
CPC分类号： Y02B70/10 , H02M1/0064 , H02M1/327 , H02M3/33523 , H02M1/08
摘要： An overtemperature protection circuit, a control circuit, and an overtemperature protection method of a switching power supply, which relate to the field of power adapters, and are used to implement a precise overtemperature protection function. In view of the current problem of the difficulty in implementing an external overtemperature protection function in some scenarios, an overtemperature protection circuit is provided. External temperature measurement is introduced by providing a temperature measurement circuit between existing pins. While a power switch is on, the potential difference between two ends of the temperature measurement circuit is achieved by voltage clamping, so that the temperature of a switching power supply is determined by means of a change in a current flowing through the temperature measurement circuit, thereby implementing an external overtemperature protection function for the switching power supply. In addition, the temperature measurement circuit operates within a turned-on period of the power switch, and is unidirectional from a control end to a sampling end during a turned-off period, so that the overtemperature protection function can be implemented without affecting implementation of existing functions, thereby better meeting requirements of actual applications of switching power supplies.

6. 发明公开

EP4456395A1 FLYING CAPACITOR CONVERTER AND METHOD FOR PROTECTING A FLYING CAPACITOR CONVERTER 审中-公开
公开(公告)号：EP4456395A1
公开(公告)日：2024-10-30
申请号：EP23169996.8
申请日：2023-04-26
申请人： ABB SCHWEIZ AG
发明人： BISHNOI, Hemant , PETTERSSON, Sami , CANALES, Francisco
IPC分类号： H02M1/00 , H02M1/08 , H02M1/32 , H02M7/483 , H02M7/487
CPC分类号： H02M1/32 , H02M1/0009 , H02M1/08 , H02M7/4837 , H02M7/487
摘要： The invention relates to a flying capacitor converter (100) comprising a protection circuit (170) for protecting the flying capacitor converter (100) from a short-circuit failure of a switch. The flying capacitor converter (100) comprises at least two cells. Each cell comprises a capacitor having a first DC side and a second DC side, a first switch (122, 132) connected to the first DC side and to a capacitor of a following cell or an output circuit, and a second switch (124, 134) connected to the second DC side and to the capacitor of the following cell or the output circuit. During a nominal non-fault operation of the flying capacitor converter (100), only one of the first switch (122, 132) and the second switch (124, 134) is in a conducting state, and during a fault operation where the first switch (122, 132) has a short-circuit failure and the second switch (124, 134) has a conducting state, the protection circuit (170) is configured to keep the second switch (124, 134) switched-on.

7. 发明公开

EP4456388A1 SHAFT GROUND RING FOR PREVENTING ELECTRICAL EROSION IN BEARING 失效
公开(公告)号：EP4456388A1
公开(公告)日：2024-10-30
申请号：EP22924256.5
申请日：2022-01-27
申请人： HJ Tong Sang Co., Ltd. , Han Jin Trading & Engineering Co., Ltd.
发明人： KIM, Min Hun , HAN, Sung Yuhp
IPC分类号： H02K11/40 , H02K7/00 , H01R4/66 , H01R13/652 , F16C41/00 , F16C19/52
CPC分类号： Y02T10/64 , F16C19/52 , F16C41/00 , H01R4/66 , H01R13/652 , H02K7/00 , H02K11/40
摘要： A shaft ground ring and an assembly thereof are disclosed. According to the present invention, there is provided a shaft ground ring fastened to a shaft of an electric motor to prevent electrical erosion caused by a leakage current, the shaft ground ring including a ring body formed to extend to surround an outer circumferential surface of the shaft and a plurality of ground protrusions formed to protrude from an inner circumferential surface of the ring body, being in contact with the outer circumferential surface of the shaft, and disposed to be spaced a predetermined gap from each other along the ring body. The present invention maintains a proper ground state in an oil cooled environment and thus can properly function a high-capacity electric motor.

8. 发明公开

EP4456385A1 HIGH SPEED ELECTRICAL MACHINE 审中-公开
公开(公告)号：EP4456385A1
公开(公告)日：2024-10-30
申请号：EP23169426.6
申请日：2023-04-24
申请人： Celeroton AG
发明人： LOOSER, Andreas , BLASER, Manuel , BOSSHARD, Daniel
IPC分类号： H02K7/08 , F04D29/057
CPC分类号： H02K7/083 , F04D29/057 , F04D29/056 , F04D29/624 , F16C32/0696 , F16C32/0603 , F16C32/067 , F16C32/0677
摘要： An electrical machine comprises a stator (1) with a stator body (25) supporting an electrical stator (3) and a rotor (5), the rotor (5) being supported by means of a bearing comprising a radial bearing section (17) forming a radial gas bearing and an axial bearing section (12) forming an axial gas bearing, the stator side parts of these bearing sections comprising an axial bearing assembly (11) and a bushing (18). The bushing (18) is aligned relative to the stator body (25) by the bushing (18) being aligned relative to a reference body (143) and by the reference body (143) being aligned relative to the stator body (25). The rotor (5) is removable from the stator body (25) while leaving the reference body (143) in place.

9. 发明公开

EP4456384A1 DIGITALES ZWILLINGSSYSTEM 审中-公开
公开(公告)号：EP4456384A1
公开(公告)日：2024-10-30
申请号：EP23169844.0
申请日：2023-04-25
申请人： Siemens Aktiengesellschaft
发明人： Hösle, Markus
IPC分类号： H02K5/12 , H02K15/12
CPC分类号： H02K15/12
摘要： Die Erfindung betrifft ein digitales Zwillingssystem (1000), aufweisend: einen physischen Teil (204) mit einer physischen Vorrichtung (10) zur Imprägnierung eines Körpers (2,3,4), aufweisend einen Antrieb (11) mit einer Antriebswelle (12) zur Bewegung des Körpers (2,3,4) um eine Rotationsachse (A) und eine Träufeleinheit (51) zur Beträufelung des Körpers (2,3,4) mit Imprägniermaterial (6), und mit einem zu imprägnierenden physischen Körper (2,3,4), aufweisend wenigstens eine Wicklung (41,41B); einen virtuellen Teil (203) mit einem digitalen Abbild des Körpers (2,3,4); ein Erfassungselement (200) zur Erfassung von Daten des Imprägniermaterials (6) innerhalb des Körpers und/oder auf dem Körper, insbesondere eines Verlaufs und/oder eines Füllstands des Imprägniermaterials; ein Datenübertragungselement (201) zur Datenübertragung zwischen dem physischen Teil (204) und dem virtuellen Teil (203); wobei die Daten durch das Datenübertragungselement (201) zum virtuellen Teil (203) übertragbar sind, wobei das digitale Abbild des Körpers (4D) in Abhängigkeit der Daten veränderbar ist.

10. 发明公开

EP4456377A1 NON-CONTACT POWER SUPPLY SYSTEM AND TRANSPORT SYSTEM 失效
公开(公告)号：EP4456377A1
公开(公告)日：2024-10-30
申请号：EP22926018.7
申请日：2022-07-26
申请人： Murata Machinery, Ltd.
发明人： TOMITA, Hiroyasu
IPC分类号： H02J50/40 , H02H7/122 , H02J50/12
CPC分类号： Y02T10/72 , H02J50/40 , H02H7/122 , H02J50/12
摘要： In a non-contact power supply system 110, each of a plurality of non-contact power supply devices 1A, 1B, 1C, 1D, and 1E has a filter circuit 9 connected to an inverter 8 configured to convert power supplied from a power source 2 into AC power, the filter circuit 9 including a reactor and capacitors. The non-contact power supply system 110 includes an electrostatic coupling unit 112 configured to electrostatically couple one non-contact power supply device to another non-contact power supply device, the electrostatic coupling unit 112 having two capacitors C10 and C20 electrically connected in parallel; and a different-phase coil 114 that is provided between the filter circuit 9 of the one non-contact power supply device and the two capacitors C10 and C20, the different-phase coil 114 having an inductance component when a short-circuit or a ground fault occurs.

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