| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 361052000 | By regulating source or load (e.g., generator field killed) | 12 |
| 20090207537 | Application Of Wideband Sampling For Arc Detection With A Probabilistic Model For Quantitatively Measuring Arc Events - An arc detection system for a plasma generation system includes a radio frequency (RF) sensor that generates first and second signals based on a respective electrical properties of (RF) power that is in communication with a plasma chamber. A correlation module generates an arc detect signal based on the first and second signals. The arc detect signal indicates whether an arc is occurring in the plasma chamber and is employed to vary an aspect of the RF power to extinguish the arc. | 08-20-2009 |
| 20100033883 | PROTECTION CIRCUIT - A method and an arrangement to detect and protect an electrical device against short-circuiting due to a presence of a conductive subject are provided. The arrangement may include a first and second probe, the first probe connecting to an electrical ground and the second probe connecting to a detecting device, the detecting device being configured to detect a short-circuit between the first and second probes, and output a signal to interrupt power supply from a power source to electrical components of the electrical device. | 02-11-2010 |
| 20100110594 | FAST RESPONSE FAILURE MODE CONTROL METHODOLOGY FOR A HYBRID VEHICLE HAVING AN ELECTRIC MACHINE - A control methodology for an engine-driven electric machine of a hybrid vehicle electrical system for enabling continued operation of the vehicle electrical system under failure mode conditions that require or result in disconnection of the battery pack from the electrical system. At the onset of a fault condition requiring battery disconnection, the electric machine is controlled to drive the battery pack current toward zero before disconnecting the battery pack. Once the battery pack is disconnected, whether by relay or fuse, the electric machine is controlled to maintain the bus voltage of the electrical system at a specified value. In both operating modes, the electric machine is controlled based on a synchronous vector current command that is determined directly as a function of the control objective (zero battery pack current or maintaining bus voltage) for improved response time compared to a traditional torque-based control. | 05-06-2010 |
| 20100321839 | OVER-CURRENT PROTECTION DEVICE FOR MULTIPLE HIGH-VOLTAGE MOTIVE DEVICES AND METHOD THEREOF - An over-current protection device for multiple high-voltage motive devices is provided. The over-current protection device includes a comparison module and a logic operation module. The comparison module receives a plurality of voltages generated from a plurality of operating currents of a plurality of high-voltage motive devices and respectively compares the voltages with at least one reference voltage to generate a plurality of comparison results, wherein the high-voltage motive devices are solenoids, electronic clutches, or a combination of solenoids and electronic clutches. The logic operation module receives the comparison results and generates at least one control signal for a plurality of high-voltage motive device driving circuits according to the comparison results. The high-voltage motive device driving circuits respectively drive the high-voltage motive devices according to the control signal. | 12-23-2010 |
| 20110043952 | DEVICE FOR THE PREVENTION OF SERIOUS FAULTS IN ELECTRICAL MAINS SUPPLY NETWORKS - The invention relates to a device for the prevention of serious faults in electrical mains supply networks by spectral analysis of the network voltage. The spectrum determined by a voltage A/D converter and a spectral analysis device is subjected to a classification by frequency intervals. The values for the frequency interval classes are correlated in the comparator with frequency interval class reference patterns for corresponding determined faults. | 02-24-2011 |
| 20110188161 | Electric Component Assembly - An electric component arrangement is described, comprising a semiconductor component ( | 08-04-2011 |
| 20110261488 | PROTECTION CIRCUIT AND ELECTRONIC DEVICE USING THE SAME - A protection circuit includes a control unit, a switch unit, a storage unit, and a delay unit, and the protection circuit is used for protecting a processing unit. The control unit is used for receiving a control signal from the processing unit when the processing unit has completed initialization, and generating a pulse voltage. The switch unit is respectively turned on and cut off when the pulse voltage is at a first and second voltage level. The storage unit receives a second supply voltage from the power source and stores energy when the switch unit is turned on, and releases energy to generate a third supply voltage when the switch unit is cut off. The delay unit delays the pulse voltage for a predetermined time period, wherein the third supply voltage is provided to the primary module. | 10-27-2011 |
| 20120106009 | Shunt Regulator at Excitation Output of Generator Control Unit for Overvoltage Protection - An electrical system includes a generator; a generator control unit connected to the generator; and a shunt regulator connected to an excitation output of the generator control unit, wherein the shunt regulator is configured to overload the excitation output of the generator control unit in the event of an overvoltage condition in the electrical system, such that an output voltage of the generator does not exceed a predetermined ceiling voltage during the overvoltage condition. | 05-03-2012 |
| 20120176706 | Reliable signaling of fault conditions in battery systems with series-connected cells - A system is used with a plurality of modules, each module requiring galvanic isolation from the other modules. Galvanic isolators are employed, each having an input and an output, the output galvanically isolated from the input, the output responsive to the input according to a response characteristic of the isolator. Each module has, a respective first isolator and a respective second isolator. The input of each respective first isolator and each respective second isolator for each module is disposed controllably to receive an activation signal from the module indicative of a module fault to be annunciated or to receive a test signal from the module, the test signal being smaller than the activation signal. The outputs of the respective first isolators are aggregated to a first node and the outputs of the respective second isolators are aggregated to a second node. A selection circuit selects from the first node and the second node, yielding a fault signal output when the selected node satisfies a predetermined condition. An analog-to-digital converter is coupled with each of the nodes, the analog-to-digital converter disposed to sense an output from one of the isolators indicative of its response characteristic in the event of a test signal being applied to the isolator. | 07-12-2012 |
| 20120194952 | CONTROLLABLE ELECTRICAL OUTLET AND A METHOD OF OPERATION THEREOF - Controllable electrical outlets and systems and methods for controlling and disabling the electrical outlets. A controllable electrical outlet includes a current sensor, an electrical switch, and a microcontroller. When an electrical load is plugged into the electrical outlet, the current sensor senses the flow of current and a current sense event is reported from the electrical outlet to a central computer. The central computer provides timing and control of the electrical outlet. When a predetermined elapsed time has passed, as measured by the central computer, a timed-out event is communicated from the central computer to the electrical outlet triggering the electrical switch, opening the current path within the electrical outlet such that electrical current no longer flows to the electrical load. Communication between the central computer and an electrical outlet may occur, for example, via existing electrical wiring, wirelessly, or via dedicated communication wiring. | 08-02-2012 |
| 20130321960 | Apparatus and method for the intelligent protection of an electrical lead - An apparatus for protecting an electrical lead in a vehicle. The apparatus includes a temperature sensor configured to record a temperature value of a conductor path coupled electrically to the electrical lead and a current limitation unit configured to limit a current flowing through the electrical lead when the temperature value of the conductor path exceeds a predetermined value. | 12-05-2013 |
| 20160006238 | CIRCUIT BREAKER SYSTEM AND METHOD - A circuit breaker device includes plural bridges conductively coupled parallel to each other between plural terminals that are configured to be conductively coupled with a power source and a load. The bridges include first and second outer bridges each having plural switches and at least an impedance bridge. The switches of the first and second outer bridges are configured to be closed to conduct electric current between the power source and the load and at least one switch in each of the first and second outer bridges are configured to be opened while at least one other switch in each of the first and second outer bridges are configured to remain closed to prevent conduction of the electric current between the power source and the load and to direct the electric current into the impedance bridge. | 01-07-2016 |
