| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Converter system having an AC/DC converter, and method for operating a converter system | US16952604 | 2020-11-19 | US11437920B2 | 2022-09-06 | Marcel Stark |
| A system includes a braking resistor and a controllable switch connected in series, the controllable switch adapted to connect to a terminal on a direct-voltage side of an AC/DC converter; an evaluation unit adapted to generate a control signal to control the controllable switch and including a determination device adapted to determine electric power supplied to the braking resistor; a voltage-acquisition device adapted to supply an output signal to the evaluation unit; and a controller adapted to regulate a set value toward an output signal of the determination device, the controller adapted to supply, directly and/or via a limiter, to a parameterizable filter adapted to convey an output signal to a switching element, the switching element adapted to generate an output signal to open and/or close the controllable switch as a function of exceeding and/or undershooting of a threshold value. | ||||||
| 142 | Switch device | US16218724 | 2018-12-13 | US11239837B2 | 2022-02-01 | Toru Takuma |
| A switch device includes a switching element that connects/disconnects a current path from a power supply terminal to a ground terminal via a load, and an overcurrent protection circuit that limits output current flowing in the switching element to be an overcurrent limit value or less. When an output short circuit of the load is detected, the overcurrent protection circuit decreases the overcurrent limit value to be lower as a power supply voltage is higher. In addition, the switch device preferably includes a switching element that connects/disconnects a current path from a power supply terminal to a ground terminal via a load, an intermittent control unit that intermittently drives the switching element when an abnormality is detected, and an output voltage monitoring portion that disables the intermittent control unit until an output voltage applied to the load reaches its target value. | ||||||
| 143 | Device for connecting an electric power source with an electric appliance | US16658337 | 2019-10-21 | US11025050B2 | 2021-06-01 | Miguel Ángel Gil Pascual |
| A device (1) for connecting an electric power source (8) with an electric appliance (9) comprising a first electric coil (4), connecting the electric power source (8) with the device (1) and a second electric coil (5), connecting the electric appliance (9) with the device (1), at least one sensor (6) arranged outside the device (1) for identifying a speed of air, an alarm device connected to the at least one sensor (6) configured such that depending on the speed of air generates a pre-alarm signal and/or a main alarm signal and/or cuts an electric connection between the electric power source (8) and the electric appliance (9), and an electric circuit having an input element (7) configured such that by operating the input element (7) after the end of a preset period of time, the electric connection between the electric power source (8) and the electric appliance (9) is activated, if the at least one sensor (6) does not identify a preset speed of air. | ||||||
| 144 | DEVICE FOR CONNECTING AN ELECTRIC POWER SOURCE WITH AN ELECTRIC APPLIANCE | US16658337 | 2019-10-21 | US20210119440A1 | 2021-04-22 | MIGUEL ÁNGEL GIL PASCUAL |
| A device (1) for connecting an electric power source (8) with an electric appliance (9) comprising a first electric coil (4), connecting the electric power source (8) with the device (1) and a second electric coil (5), connecting the electric appliance (9) with the device (1), at least one sensor (6) arranged outside the device (1) for identifying a speed of air, an alarm device connected to the at least one sensor (6) configured such that depending on the speed of air generates a pre-alarm signal and/or a main alarm signal and/or cuts an electric connection between the electric power source (8) and the electric appliance (9), and an electric circuit having an input element (7) configured such that by operating the input element (7) after the end of a preset period of time, the electric connection between the electric power source (8) and the electric appliance (9) is activated, if the at least one sensor (6) does not identify a preset speed of air. | ||||||
| 145 | Power supply control device having a control unit for estimating a smoking temperature of a switch element | US15775665 | 2016-11-30 | US10951020B2 | 2021-03-16 | Yuuki Sugisawa; Shunichi Sawano |
| A power supply control device prevents an electrical wire and a switch element from smoking. The power supply control device includes a switch element provided at a midpoint in an electrical wire that connects a power supply and a load. A current detection unit detects the current value of current flowing in the electrical wire. A temperature estimation unit estimates the wire temperature of the electrical wire based on the current value detected by the current detection unit. A control unit turns on or off the switch element based on the wire temperature estimated. The control unit estimates the smoking temperature of the switch element by changing the heat dissipation time constant of the electrical wire used in temperature calculation to a smaller value, and turns off the switch element if the wire temperature is greater than or equal to the estimated smoking temperature of the switch element. | ||||||
| 146 | Electronic switching and protection circuit with wakeup function | US16227715 | 2018-12-20 | US10840700B2 | 2020-11-17 | Robert Illing; Christian Djelassi; Markus Ladurner; David Jansson |
| An embodiment electronic circuit includes an electronic switch comprising a load path, and a control circuit configured to drive the electronic switch. The control circuit is configured to operate in one of a first operation mode and a second operation mode based at least on a level of a load current of the electronic switch. In the first operation mode the control circuit is configured to generate a first protection signal based on a current-time-characteristic of the load current and drive the electronic switch based on the first protection signal. The control circuit is configured to generate a status signal such that the status signal has a wakeup pulse when the operation mode changes from the second operation mode to the first operation mode and, after the wakeup pulse, a signal level representing a level of the load current. | ||||||
| 147 | Electric wire protection device and control method for electric wire protection device | US15917075 | 2018-03-09 | US10811870B2 | 2020-10-20 | Takashi Kikuchi; Takahiro Miyakawa; Syunsuke Nagakura; Keisuke Ueta; Tomoya Nishino; Noboru Ujigawa; Seiju Kawamata; Masataka Tsukioka; Rikuya Ezoe |
| An electric wire protection device includes a voltage adjusting unit that adjusts voltage of a power source side and supplies the resulting voltage to a load, and a controller that includes a calculation unit configured to compute temperature information of an electric wire connecting the power source and the load from a value of an electric current flowing through the voltage adjusting unit, and that is configured to make the voltage adjusting unit into a shutoff state of shutting off the power source and the load on the basis of the temperature information. | ||||||
| 148 | Electric wire protection device | US15911492 | 2018-03-05 | US10707676B2 | 2020-07-07 | Takashi Kikuchi; Keisuke Ueta; Syunsuke Nagakura; Takahiro Miyakawa; Tomoya Nishino; Noboru Ujigawa; Seiju Kawamata; Masataka Tsukioka; Rikuya Ezoe |
| An electric wire protection device includes a voltage adjuster that adjusts voltage on a power source side to be supplied to a load and a controller that includes a temperature calculation part which calculates temperature information of an electric wire based on a current value flowing through the voltage adjuster. The controller sets a first time constant as a time constant used to calculate the temperature information while the voltage adjuster is in the interrupted state, and sets a second time constant as a time constant used to calculate the temperature information while the voltage adjuster supplies power to the load. The first time constant is a value larger than the second time constant and equal to or larger than an actual time constant of the electric wire, and the second time constant is a value smaller than the actual time constant of the electric wire. | ||||||
| 149 | Electric-wire protection device | US15911445 | 2018-03-05 | US10707675B2 | 2020-07-07 | Takashi Kikuchi; Keisuke Ueta; Syunsuke Nagakura; Takahiro Miyakawa; Tomoya Nishino; Noboru Ujigawa; Seiju Kawamata; Masataka Tsukioka; Rikuya Ezoe |
| An electric-wire protection device includes a voltage adjustment unit that adjusts the voltage to a load, and a controller that includes a temperature calculation unit that calculates temperature information on an electric wire from a value of current, and makes the voltage adjustment unit into a shut-off state based on the temperature information. The temperature information is calculated from an amount of temperature changes based on the current value and a predetermined initial value. The controller shifts into a sleep state when a sleep condition is satisfied that includes a condition that the temperature information is lower than the initial value. The initial value when the controller returns from the sleep state is based on a convergence value of temperature in conducting energization on the electric wire at a maximum value of steady-state current. | ||||||
| 150 | SWITCH DEVICE | US16218724 | 2018-12-13 | US20190190512A1 | 2019-06-20 | Toru TAKUMA |
| A switch device includes a switching element that connects/disconnects a current path from a power supply terminal to a ground terminal via a load, and an overcurrent protection circuit that limits output current flowing in the switching element to be an overcurrent limit value or less. When an output short circuit of the load is detected, the overcurrent protection circuit decreases the overcurrent limit value to be lower as a power supply voltage is higher. In addition, the switch device preferably includes a switching element that connects/disconnects a current path from a power supply terminal to a ground terminal via a load, an intermittent control unit that intermittently drives the switching element when an abnormality is detected, and an output voltage monitoring portion that disables the intermittent control unit until an output voltage applied to the load reaches its target value. | ||||||
| 151 | Electronic Switching and Protection Circuit with Wakeup Function | US16227715 | 2018-12-20 | US20190190255A1 | 2019-06-20 | Robert Illing; Christian Djelassi; Markus Ladurner; David Jansson |
| An embodiment electronic circuit includes an electronic switch comprising a load path, and a control circuit configured to drive the electronic switch. The control circuit is configured to operate in one of a first operation mode and a second operation mode based at least on a level of a load current of the electronic switch. In the first operation mode the control circuit is configured to generate a first protection signal based on a current-time-characteristic of the load current and drive the electronic switch based on the first protection signal. The control circuit is configured to generate a status signal such that the status signal has a wakeup pulse when the operation mode changes from the second operation mode to the first operation mode and, after the wakeup pulse, a signal level representing a level of the load current. | ||||||
| 152 | Active surface protection for portable electronic devices | US15181615 | 2016-06-14 | US10315828B2 | 2019-06-11 | Tommaso P. Rivellini; Richard H. Koch; Zhipeng Zhang |
| A portable electronic device includes one or more bumpers that are operable to transition between a stowed position and a deployed position. In the deployed position, the bumpers may be proud of one or more surfaces of the portable electronic device that the bumpers are not proud of in the stowed position. The bumpers may protect the surfaces from impact when proud of those surfaces if the portable electronic device contacts a surface, such as when the portable electronic device is dropped. The bumpers may form portions of side corners or other portions of the portable electronic device in the stowed position. In transitioning from the stowed position to the deployed position, the bumpers may rotate and/or translate. | ||||||
| 153 | Oil-immersed transformer thermal monitoring and prediction system | US15050538 | 2016-02-23 | US10281338B2 | 2019-05-07 | Xianyong Feng; Mirrasoul J. Mousavi |
| A real time thermal monitoring and prediction system (TMPS) is provided for use in monitoring and operating a transformer. The TMPS may be used to estimate a maximum loading level for the transformer over a future time period using a dynamic thermal model for the transformer and ambient temperature forecasts. The transformer may be loaded to its maximum loading level during power congestion or a service restoration process. | ||||||
| 154 | Variable frequency drive overvoltage protection | US14795487 | 2015-07-09 | US10141733B2 | 2018-11-27 | Nathan Thomas West; David Marshall Foye; Korwin Jay Anderson |
| Overvoltage protection apparatuses, systems and methods for variable frequency motor drives are disclosed. In an exemplary embodiment, a variable frequency motor drive system including a rectifier, a DC bus electrically coupled with the rectifier, and an inverter electrically coupled with the DC bus is provided. A protection device electrically coupled with the rectifier and configured to interrupt power supply to the system based upon fault conditions is provided. A controller is provided and configured to receive information indicative of a voltage of the DC bus, process the received information to model a condition of at least one component of the variable frequency motor drive, and control the protection device to interrupt power supply to the variable frequency motor drive if the modeled condition meets a fault criterion. | ||||||
| 155 | WINDOW CONTROL DEVICE AND METHOD FOR VEHICLE | US15810985 | 2017-11-13 | US20180301891A1 | 2018-10-18 | Kyong Ho SHON; Wung Chul CHUNG; Sug Woo SHIN; Dong Hun SON; Bo Sung JO |
| The present disclosure provides a window control device and method for a vehicle. The window control device includes: a drive motor configured to open and close a window glass; a sensor configured to generate a pulse signal corresponding to a rotation of the drive motor; and a controller configured to repeatedly perform a safety function based on monitoring results of the pulse signal. | ||||||
| 156 | Overcurrent detection circuit | US14794891 | 2015-07-09 | US09671437B2 | 2017-06-06 | Masashi Akahane |
| An overcurrent detection circuit includes a current detection resistor that generates a voltage in proportion to current flowing through a switching element and a comparator that compares the voltage detected via the current detection resistor and a reference voltage generated by a reference voltage generation circuit to thereby detect overcurrent flowing through the switching element. In particular, the reference voltage generation circuit includes: a first resistance voltage dividing circuit that resistance-divides a standard voltage by connecting, in series, two types of resistors having different temperature characteristics; a second resistance voltage dividing circuit that resistance-divides the standard voltage by connecting, in series, resistors having the same temperature characteristics; and an instrumentation amplifier that generates the reference voltage according to the difference between the divided output voltages of the first and second resistance voltage dividing circuits. | ||||||
| 157 | System for monitoring temperature inside electric machines | US14068546 | 2013-10-31 | US09614472B2 | 2017-04-04 | Kevin Allan Dooley |
| The electric machine comprises at least one winding made of a material having a temperature dependent resistance. The temperature of the winding is monitored using the resistance therein. Temperatures or resistances indicative of a fault can be sensed, and corrective action taken, without the need for dedicated temperature sensors. | ||||||
| 158 | Protection device for electricity supply circuit | US14510651 | 2014-10-09 | US09472940B2 | 2016-10-18 | Yoshihide Nakamura; Akinori Maruyama; Yoshinori Ikuta; Keisuke Ueta |
| When a power switch is turned off, a protection device for an electricity supply circuit starts keeping time using a timer and turns on a disconnection flag. Then the protection device turns off the disconnection flag when the timer has counted a predetermined time. When the power switch is turned off, the disconnection flag does not subsequently turn off until the predetermined time has passed. Therefore, it is possible to prevent an excessive temperature increase in the power switch and prevent damage to the power switch. | ||||||
| 159 | Control device and method for operating an electrical machine driven by an inverter | US14111631 | 2012-02-15 | US09236826B2 | 2016-01-12 | Christian Djonga; Stefan Gaab; Tobias Werner; Michele Hirsch; Michael Heeb; Markus Kretschmer; Torsten Heidrich |
| The invention relates to a method for operating an electrical machine (1) controlled by an inverter (2), wherein the inverter (2) comprises half-bridge branches (10-U, 10-V, 10-W) having power components in the form of controllable power switching elements (3) and power diodes (4) respectively connected in parallel therewith, wherein each of the half-bridge branches (10-U; 10-V; 10-W) is arranged on a separate semiconductor module (11-U; 11-V; 11-W), which are arranged jointly on a baseplate (12), wherein the phase currents (1_U, 1_V, 1_W) flowing through the half-bridge branches (10-U, 10-V, 10-W), the voltages present at the power components and temperatures (t_Sens_U, t_Sens_V, t_Sens_W) on the semiconductor modules (11-U, 11-V, 11-W) are determined, from the current (1_U; 1_V; 1_W) respectively flowing at a power component and from the voltage respectively present a power loss (P) is calculated for each of the power components, from the power losses (P) a relevant temperature swing (Δt; Δt_Sens) is determined for each of the power components and for temperature sensors (13-U, 13-V, 13-W) serving to determine the temperatures on the semiconductor modules, a temperature (TempCooler) of the baseplate (12) is determined from the determined temperatures (t_Sens_U, t_Sens_V, t_Sens_W) on the semiconductor modules (11-u, 11-V, 11-W) and the determined temperature swings (Δt_Sens) at the temperature sensors (13-U, 13-V, 13-W), and a torque or a power of the electrical machine (1) is determined in a manner dependent on the determined temperature swings (Δt) and the determined temperature (TempCooler) of the baseplate (12). | ||||||
| 160 | Monitoring operating condition of electrical component | US13687514 | 2012-11-28 | US09129510B2 | 2015-09-08 | Wei Huang; Khoi Nguyen; Douglas A. Voda; David C. Lawrence; Harshavardhan M. Karandikar |
| Among other things, one or more techniques and/or systems are provided for monitoring an operating condition of an electrical component, such as electrical switchgear. In one example, temperatures associated with an electrical conductor connection within the electrical component may be evaluated against one or more expected temperatures curves derived from a linear regression model to determine whether the electrical conductor connection has failed or is starting to fail. In another example, temperature readings may be monitored to determine whether a temperature reading at one location is out of sync with temperature readings at other locations. An electrical conductor connection associated with a location of the out of sync temperature may be determined as faulty. In another example, a Euclidean distance model and/or a correlation coefficient model may be used to identify a faulty electrical conductor connection. In this way, failure and/or potential failure of the electrical component may be predicted. | ||||||
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