专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11486903B2 Ventilation device 有权
公开(公告)号：US11486903B2
公开(公告)日：2022-11-01
申请号：US17633134
申请日：2020-08-25
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Tomoya Nakagaki
IPC分类号： F04D27/00 , G01R15/09 , F04D25/06 , G01R15/04 , H02P6/16 , F24F110/30 , F24F7/013
摘要： Controlling a switching element in accordance with a voltage output from a signal amplifying circuit enables adjusting a voltage to be received by a current calculation circuit. Even when a range of a air volume to be used is wide and a range of output of a DC motor is wide, or a current flowing through the DC motor has a wide range, a resistance value of a shunt resistor and an amplification factor of a signal amplifying circuit are not required to be reduced, and thus current detection accuracy of the DC motor can be improved.

2. 发明申请

US20220082453A1 METHOD AND DEVICE FOR MEASURING TEMPERATURE, AND STORAGE MEDIUM 有权
公开(公告)号：US20220082453A1
公开(公告)日：2022-03-17
申请号：US17535259
申请日：2021-11-24
申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
发明人： Xin YANG
IPC分类号： G01K7/22 , G01R15/09
摘要： A method for measuring temperature includes: measuring a current voltage corresponding to a thermistor based on a current resistor that is connected in series with the thermistor in the crystal oscillator, wherein the current resistor is any one of resistors in a resistor array; switching the resistor into another resistor in the resistor array, enabling the another resistor to be connected in series with the thermistor, based on a preset switching rule, when the current voltage is greater or lower than a preset voltage range, until a target resistor in the resistor array is connected in series with the thermistor, and a target voltage corresponding to the thermistor is measured to be within the preset voltage range; and determining temperature of the crystal oscillator based on connected power supply voltage, the target resistor and the target voltage.

3. 发明授权

US10928428B2 Measuring apparatus 有权
公开(公告)号：US10928428B2
公开(公告)日：2021-02-23
申请号：US16245398
申请日：2019-01-11
申请人： HIOKI DENKI KABUSHIKI KAISHA
发明人： Tetsuya Nakamura , Takashi Hirao , Yuta Akamatsu , Yuta Suzuki
IPC分类号： G01R27/14 , G01R15/09 , G01R15/12 , G01R27/02 , G01R19/165
摘要： The present invention aims to reduce the leakage current that flows when measuring a high voltage and includes: a voltage detector that detects a voltage and outputs a detection voltage; a current supplier that supplies a measurement current across a pair of input terminals via a protective resistor; and a processor that executes a voltage measurement process, which measures the voltage based on data indicating the detection voltage, and a resistance measurement process, which measures a resistance connected between the input terminals based on the voltage and the current. A first switch is connected in parallel to the protective resistor and the processor executes the voltage measurement process in a state where the first switch has been set open to measure the terminal voltage, and executes the resistance measurement process by setting the first switch shorted when the voltage is equal to or below the reference voltage value.

4. 发明授权

US10510303B2 Current sensor and organic light emitting display device including the same 有权
公开(公告)号：US10510303B2
公开(公告)日：2019-12-17
申请号：US16162282
申请日：2018-10-16
申请人： Samsung Display Co., Ltd.
发明人： Jin Woo Kim
IPC分类号： G09G3/3283 , G01R15/09 , G01R19/00
摘要： A current sensor includes a first resistor between a first node and a second node, a first voltage limiting device between the first node and the second node, and a second resistor between the second node and a third node, wherein a resistance level of the first resistor is greater than a resistance level of the second resistor, and wherein a current flowing from the third node to the first node is configured to be measured based on a voltage across the first resistor or a voltage across the second resistor.

5. 发明申请

US20190088210A1 CURRENT SENSOR AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME 审中-公开
公开(公告)号：US20190088210A1
公开(公告)日：2019-03-21
申请号：US16162282
申请日：2018-10-16
申请人： Samsung Display Co., Ltd.
发明人： Jin Woo KIM
IPC分类号： G09G3/3283 , G01R15/09 , G01R19/00
CPC分类号： G09G3/3283 , G01R15/09 , G01R19/0092 , G09G2300/0426 , G09G2300/0809 , G09G2330/04
摘要： A current sensor includes a first resistor between a first node and a second node, a first voltage limiting device between the first node and the second node, and a second resistor between the second node and a third node, wherein a resistance level of the first resistor is greater than a resistance level of the second resistor, and wherein a current flowing from the third node to the first node is configured to be measured based on a voltage across the first resistor or a voltage across the second resistor.

6. 发明授权

US10191086B2 Power detection circuit 有权
公开(公告)号：US10191086B2
公开(公告)日：2019-01-29
申请号：US15079364
申请日：2016-03-24
申请人： Apple Inc.
发明人： Michael R. Seningen , Zhao Wang , Ajay Bhatia
IPC分类号： G11C7/00 , G01R15/09 , G01R31/40
摘要： An apparatus for detecting a change in a voltage level of a power supply is disclosed. An inverter coupled to a first power supply may generate a signal dependent upon a voltage level of a second power supply. A latch coupled to the first power supply may be set based on a first voltage level of the second power supply and a first value of the signal, and re-set based on a second voltage level of the second power supply and a second value of the signal different than the first value of the signal.

7. 发明申请

US20180080963A1 CURRENT DETECTION METHOD OF SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE 审中-公开
公开(公告)号：US20180080963A1
公开(公告)日：2018-03-22
申请号：US15823217
申请日：2017-11-27
申请人： Renesas Electronics Corporation
发明人： Osamu SOMA , Akira Uemura , Kenji Amada
IPC分类号： G01R19/32 , G01R1/20 , G01R15/09
CPC分类号： G01R19/32 , G01R1/203 , G01R15/09
摘要： A control method of a semiconductor device includes inspecting an electrical property of a current detection circuit in the first semiconductor chip, writing information on a correction equation obtained on the basis of an inspection result in a memory circuit of the second semiconductor chip, and correcting, with the second semiconductor chip, a detection result obtained by the current detection circuit on the basis of the information on the correction equation.

8. 发明授权

US09797959B2 Battery fuel gauges using FET segment control to increase low current measurement accuracy 有权
公开(公告)号：US09797959B2
公开(公告)日：2017-10-24
申请号：US14084398
申请日：2013-11-19
申请人： QUALCOMM Incorporated
发明人： Eric I Mikuteit
IPC分类号： G01N27/416 , G01R31/36 , G01R15/09 , G01R19/00 , G01R1/20 , H01M10/48
CPC分类号： G01R31/3644 , G01R1/203 , G01R15/09 , G01R19/0092 , G01R31/3624 , H01M10/48 , H03K2217/0027
摘要： A circuit comprises a battery field-effect transistor (FET) coupled between a battery and an electronic system so that current from the battery flows through the battery FET to the electronic system. A replica FET couples the battery to a current sensing circuit. One of the battery FET and the replica FET comprises a plurality of parallel FET segments having separate control terminals. A logic block provides a plurality of switch control signals based on a system state input. A switching circuit receives the switch control signals and selectively couples the separate control terminals of the FET segments to one of a first reference voltage terminal or a second reference voltage terminal to independently turn each FET segment on or off. The current sensing circuit provides a voltage indicative of the current flowing through the replica FET.

9. 发明授权

US09747776B2 Electrical sensor with configurable settings and a display 有权
公开(公告)号：US09747776B2
公开(公告)日：2017-08-29
申请号：US14226758
申请日：2014-03-26
申请人： Neilsen-Kuljian, Inc.
发明人： Huy D. Nguyen , Roger Borders , Tom Lik-Chung Lee
IPC分类号： G08B21/00 , G08B21/18 , G01R15/18 , G01R15/09 , H02H3/00 , H02H3/04 , H02H3/08 , H02H3/093 , H02H3/20
CPC分类号： G08B21/182 , G01R15/09 , G01R15/183 , H02H3/006 , H02H3/04 , H02H3/08 , H02H3/0935 , H02H3/20
摘要： An electrical sensor is described. The electrical sensor including an electrical signal input configured to receive an electrical signal, an alarm, one or more inputs configured to set a configuration value and at least one display configured to display said configuration value. The monitor is coupled with the electrical signal input, the alarm, the display, and the one or more inputs. Further, the monitor is configured to determine a characteristic of the electrical signal received on the electrical signal input. The monitor is configured to activate the alarm based on the configuration value set by the one or more inputs and the characteristic of the electrical signal. And, the monitor configured to generate at least one display signal based on the configuration value to be used by the at least one display to display the configuration value.

10. 发明授权

US5726575A Path for acquiring a voltage pulse, and a method and a system for measuring partial discharges and provided with such a path 失效
标题翻译：用于获取电压脉冲的路径，以及用于测量局部放电并具有这种路径的方法和系统
公开(公告)号：US5726575A
公开(公告)日：1998-03-10
申请号：US522920
申请日：1995-09-01
申请人： Jean Poittevin , Mohamed Ryadi , Jean-Claude Bonnet , Jacques Mazankine
发明人： Jean Poittevin , Mohamed Ryadi , Jean-Claude Bonnet , Jacques Mazankine
IPC分类号： G01R15/09 , G01R29/00 , G01R31/12 , G01R31/00
CPC分类号： G01R15/09 , G01R31/1272
摘要： The invention relates to an acquisition path for acquiring a voltage pulse, and to a system and a method making use of said path, the path comprises: a path input for a pulse signal; a module for determining the polarity and for limiting acquisition of the input signal; a control module for controlling acquisition and for storing the polarized peak value of the input signal; a detect-and-hold module for detecting the polarized peak value of the signal being acquired, and for holding it; and selection means for selecting the rating of the signal being acquired; according to the invention the selection module for selecting the rating of the signal being acquired comprises a plurality of measurement ranges all of which are connected at their upstream ends to the path input, and all of which are connected at their downstream ends to automatic selection means for automatically selecting the optimum measurement range for the signal being acquired.
摘要翻译：本发明涉及用于获取电压脉冲的采集路径，以及利用所述路径的系统和方法，所述路径包括：用于脉冲信号的路径输入; 用于确定极性并限制输入信号的获取的模块; 控制模块，用于控制采集和存储输入信号的偏振峰值; 检测和保持模块，用于检测正在获取的信号的极化峰值，并用于保持; 以及选择装置，用于选择所获取的信号的等级; 根据本发明，用于选择所获取的信号的等级的选择模块包括多个测量范围，所述多个测量范围在其上游端连接到路径输入，并且它们的下游端都连接到自动选择装置用于自动选择正在获取的信号的最佳测量范围。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式