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1. 发明公开

US20240077366A1 SEMICONDUCTOR DEVICE 审中-公开
公开(公告)号：US20240077366A1
公开(公告)日：2024-03-07
申请号：US18357675
申请日：2023-07-24
申请人： FUJI ELECTRIC CO., LTD.
发明人： Yuichi ITO , Kazuhiro MATSUNAMI
IPC分类号： G01K7/24 , G01K7/42 , H01L21/66
CPC分类号： G01K7/24 , G01K7/42 , H01L22/34
摘要： A semiconductor device includes an integrated circuit having a first resistor configuring a voltage divider circuit, a sensing resistor configured to measure a sheet resistance having a same attribute as that of the first resistor, a temperature detection circuit configured to detect a value of a first temperature, a storage circuit configured to store a table including first information for each of a plurality of values of the first temperatures, the first information corresponding to a sheet resistance of the first resistor obtained based on a result of measurement of the sensing resistor, and indicating a relationship between a second temperature and a divided voltage of the voltage divider circuit at the second temperature, and an arithmetic circuit configured to obtain the second temperature, based on the first information at the value of the first temperature detected by the temperature detection circuit and the divided voltage.

2. 发明公开

US20240035900A1 ELECTRONIC DEVICE AND METHOD FOR MORE ACCURATELY ESTIMATING RESISTANCE VALUE OF THERMISTOR 审中-公开
公开(公告)号：US20240035900A1
公开(公告)日：2024-02-01
申请号：US17875437
申请日：2022-07-28
申请人： PixArt Imaging Inc.
发明人： Yi-Hsuan Wu
IPC分类号： G01K7/24 , G01K7/42
CPC分类号： G01K7/24 , G01K7/42
摘要： An electronic device for estimating a temperature value of a thermistor includes a first signal port, an analog-to-digital converter, and a processing circuit. When the thermistor is coupled to the first signal port of the electronic device, the processing circuit is arranged to operate in a first switching condition to detect and generate a first voltage difference to the analog-to-digital converter, to operate in a second switching condition to detect and generate a second voltage difference to the analog-to-digital converter; and, the analog-to-digital converter is arranged to determine a resistance value of the thermistor based on the first voltage difference compared to the second voltage difference and to generate the estimated temperature value according to the determined resistance value.

3. 发明公开

US20230332957A1 CELL SUPERVISION CIRCUIT FOR A BATTERY MODULE 审中-公开
公开(公告)号：US20230332957A1
公开(公告)日：2023-10-19
申请号：US18212310
申请日：2023-06-21
申请人： SAMSUNG SDI CO., LTD.
发明人： Maximilian HOFER , Helmut HAMMERSCHMIED
IPC分类号： G01K7/24 , H01M10/48
CPC分类号： G01K7/24 , H01M10/486 , H01M2010/4271
摘要： A testing method for a thermal contact between a temperature sensor and a battery cell of a battery module, includes measuring a temperature T1 of the temperature sensor at a time point t1, heating the temperature sensor for a defined time (t2−t1) and/or (t3−t1), measuring a temperature T2 of the temperature sensor at a time point t2 and/or a temperature T3 of the temperature sensor at a time point t3, and determining the thermal contact between the temperature sensor and the battery cell based on at least one of the temperature differences ΔT2,1=(T2−T1), ΔT3,1=(T3−T1) and ΔT3,2=(T3−T2) and a heat transfer coefficient determined thereby. Also, a testing circuit for a temperature sensor of a battery module includes a thermistor with a first node connected to a first supply voltage and a second node connected to ground, a switch interconnected between the first node of the thermistor and a second supply voltage, and an analog-to-digital converter connected in parallel to the thermistor. Also, a cell supervision circuit for a battery module including a circuit carrier, a testing circuit, and a temperature sensor surface mounted to the circuit carrier and having a measuring head with a thermistor configured to be brought into thermal contact with a battery cell of the battery module.

4. 发明公开

US20230304870A1 SYSTEMS AND METHODS FOR TEMPERATURE MEASUREMENTS 审中-公开
公开(公告)号：US20230304870A1
公开(公告)日：2023-09-28
申请号：US17656288
申请日：2022-03-24
申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
发明人： Manuel Hortensia L. MEYERS
IPC分类号： G01K7/22 , G01K7/24
CPC分类号： G01K7/223 , G01K7/24
摘要： A method includes using a thermistor as a temperature sensor and connecting a pull-up resistor in series to the thermistor in a voltage divider circuit. The pull-up resistor is fabricated in an integrated circuit and includes a series of resistor segments connected to selectable voltage output tabs. The method further includes selecting an output voltage tab for a selected resistance segment having a selected resistance value to match a target resistance value for the pull-up resistor that is smaller than the as-fabricated resistance value of the pull-up resistor, calculating a ratio of a voltage on the thermistor and a voltage on the selected output voltage tab in the voltage divider circuit, and mapping the calculated ratio to a temperature value of the thermistor based on a temperature-resistance relationship of the thermistor in combination with the target resistance value of the pull-up resistor.

5. 发明授权

US11711025B2 Power semiconductor module and power conversion apparatus including the same 有权
公开(公告)号：US11711025B2
公开(公告)日：2023-07-25
申请号：US16958836
申请日：2018-11-01
申请人： Mitsubishi Electric Corporation
发明人： Takeshi Horiguchi , Takayoshi Miki
IPC分类号： H02M7/217 , H02M1/08 , H02M1/34 , G01K1/14 , G01K7/24 , H03F3/45 , H03K5/24
CPC分类号： H02M7/217 , G01K1/14 , G01K7/24 , H02M1/08 , H02M1/34 , H03F3/45475 , H03K5/24
摘要： A power semiconductor module includes at least one upper arm provided between a positive electrode line and a node and including a power semiconductor device and a freewheeling diode connected in parallel, at least one lower arm provided between a negative electrode line and the node and including a power semiconductor device and a freewheeling diode connected in parallel, and a snubber circuit provided between the positive electrode line and the negative electrode line. The snubber circuit includes a snubber capacitor and a snubber resistor connected in series. At least one control terminal outputs a voltage representing the temperature of the snubber resistor or a voltage related to the temperature of the snubber resistor to a driver that drives the power semiconductor device.

6. 发明授权

US11638344B1 Embedded electronic heater controller 有权
公开(公告)号：US11638344B1
公开(公告)日：2023-04-25
申请号：US16829199
申请日：2020-03-25
申请人： Rockwell Collins, Inc.
发明人： Amos Veltkamp
IPC分类号： H05K1/02 , H05B1/02 , B64D15/12 , G01K7/24
摘要： A circuit board is disclosed that has a pre-warming function. The circuit board includes a substrate and one or more conductive paths embedded in the substrate. The one or more electrically conductive paths include a logic control circuit containing a heating element and a temperature-sensitive element configured to control the heating element and deliver an input when the temperature-sensitive element has reached a threshold temperature. The one or more electrically conductive paths further includes a heater power circuit configured to deliver power to the logic control circuit. The one or more electrically conductive paths further includes an operational power circuit configured to switch off power to the heater power circuit and switch on power to the operational power circuit upon a delivery of the input from the logic control circuit.

7. 发明申请

US20220219005A1 REDUNDANT TRACES FOR FLEXIBLE CIRCUITS USED IN AN ENERGY DELIVERY DEVICE 有权
公开(公告)号：US20220219005A1
公开(公告)日：2022-07-14
申请号：US17590027
申请日：2022-02-01
申请人： BAUSCH HEALTH IRELAND LIMITED
发明人： Craig Collins , Kurt Duclos , Martin Kenney
IPC分类号： A61N1/40 , H05K1/18 , G01K7/24 , H05K1/02
摘要： Energy delivery devices with a flexible circuit. The energy delivery devices may be used in the treatment of human tissue, and the flexible circuit move or flex during use. The flexible circuit may include an electronic component and a trace connected with the electronic component. The trace may have a plurality of sections that provide parallel current paths over a portion of the trace. Alternatively, the flexible circuit may include a plurality of traces that are connected with the terminal of the electronic component to provide parallel current paths over their entire length to the terminal of the electronic component. These redundant parallel current paths improve device reliability.

8. 发明授权

US11260186B2 Wire heated tube with temperature control system for humidifier for respiratory apparatus 有权
公开(公告)号：US11260186B2
公开(公告)日：2022-03-01
申请号：US16441099
申请日：2019-06-14
申请人： ResMed Pty Ltd
发明人： Adrian Ashley Vos , Ronald James Huby , Zhuo Ran Tang
IPC分类号： A61M16/00 , H05B3/68 , A61M16/10 , A61M16/08 , G01K7/24 , G01K13/02 , A61M16/16 , G01K13/024
摘要： A control system for a heated conduit in a respiratory apparatus includes a power supply configured to provide power to the heated conduit and a heating control circuit configured to control an amount of heat generated in the heated conduit. The control system further includes a sensing circuit configured to indicate the temperature of a sensor positioned in the heated conduit by comparing a reference voltage with a sum of a voltage drop through the sensor and a voltage provided to the sensor by the power supply when the heating control circuit is on. When the heating control circuit is off, the voltage drop through the sensor is solely due to current provided by a current source.

9. 发明申请

US20210234208A1 TEMPERATURE SENSOR THERMAL CONTACT TESTING METHOD AND CIRCUIT 有权
公开(公告)号：US20210234208A1
公开(公告)日：2021-07-29
申请号：US16761884
申请日：2018-06-01
申请人： SAMSUNG SDI CO., LTD.
发明人： Maximilian HOFER , Helmut HAMMERSCHMIED
IPC分类号： H01M10/48 , G01K7/24
摘要： The present invention relates to a testing method for the thermal contact between a temperature sensor (50) and a battery cell (10) of a battery module (30), wherein the method comprises the steps of measuring a temperature T1 of the temperature sensor (50) at a time point t1, heating the temperature sensor (50) for a defined time (t2-t1), measuring a temperature T2 of the temperature sensor (50) at a time point t2 and/or a temperature T3 of the temperature sensor (50) at a time point t3, and determining the thermal contact between the temperature sensor (50) and the battery cell (10) based on at least one of the temperature differences ΔT2,1=(T2-T1), ΔT3,1=(T3-T1) and/or ΔT3,2=(T3-T2). The invention further relates to a testing circuit (60) for a temperature sensor (50) of a battery module (30), comprising a thermistor (61) with a first node (67) connected to a first supply voltage (65) and a second node (68) connected to ground (69), a switch (63) interconnected between the first node (67) of the thermistor (61) and a second supply voltage (66), and an analog-to-digital converter (64) connected in parallel to the thermistor (61). The invention further relates to a cell supervision circuit (40) for a battery module (30), comprising a circuit carrier (45), a testing circuit (60) according to any one of the claims 1 to 10, and a temperature sensor (50) surface mounted to the circuit carrier (45) and comprising a measuring head (51) with

10. 发明授权

US10916937B2 Power system with an overheat detection circuit 有权
公开(公告)号：US10916937B2
公开(公告)日：2021-02-09
申请号：US16151642
申请日：2018-10-04
申请人： ASUSTeK COMPUTER INC.
发明人： Kang-Xiang Hui , Zhao-Long Dong , Ching-Ji Liang
IPC分类号： H02H9/02 , G01K7/24 , H02M1/32 , G01K3/00 , H02M1/00
摘要： A power system includes a control circuit, a power conversion circuit, a current detection circuit and a overheat detection circuit. The control circuit is for generating one or more pulse signal. The power conversion circuit is electrically coupled to the control circuit, for generating an output current according to the pulse signal. The current detection circuit is electrically coupled to the power conversion circuit, for generating a sensing current according to the output current. The overheat detection circuit is electrically coupled to the current detection circuit and the control circuit, for generating the correction current according to a temperature of the power conversion circuit. The control circuit adjusts a duty ratio of the pulse signal according to a correction sensing current to adjust the output current, and the correction sensing current is a sum of the value of the sensing current and the correction current.

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