| Entries |
| Document | Title | Date |
|---|
| 20080211508 | Load Bank - A load bank that is used to test electrical connections. The connections are attached to the load bank, so that the switches are loaded during the testing. The overheating or underheating, of either switches or loads can be tested, evaluated, and used to determine faults and errors. | 09-04-2008 |
| 20090251147 | APPARATUS FOR TESTING PERFORMANCE OF CAR AUDIO SYSTEM - An apparatus for testing switches of a vehicle audio system includes contact bars. In use, a front end of each contact bar contacts either one of the switches, or a portion of the surface of the audio system. A front end of an extension bar is connected to a rear end of each contact bar. A gear unit is connected to a rear end of each extension bar, to move the extension bar forward and rearward. A motor is mounted to each gear unit, to rotate the extension bars. A piezoelectric sensor is mounted to each motor, to measure the pressure applied to the contact bars. A control unit compares the pressures measured by the piezoelectric sensors with set values, and diagnoses the switches. | 10-08-2009 |
| 20100164501 | ALTERNATING CURRENT SWITCH DEVICE AND METHOD FOR THE MONITORING OR DIAGNOSIS OF THE OPERABILITY OF AN ALTERNATING CURRENT SWITCH DEVICE - The invention relates to an alternating current switch device for the optional closure and opening of at least one electrically conducting connection, wherein this alternating current switch device has at least two parallel connected branches ( | 07-01-2010 |
| 20110057657 | PUSH-BUTTON TESTING SYSTEM - A push-button switch test device having a flexible tab fixedly attached to a pushing member. The flexible tab is made of a flexible material and includes a deformation sensitive resistor mounted on a surface. The push-button switch test device may be used to test a push-button by imposing a known force on the flexible tab while receiving a signal level across the deformation sensitive resistor. As the known force pushes on the flexible tab, the signal level indicates when the push-button has engaged. The force may then be reversed to permit sensing of the disengagement of the switch. Configurations of a plurality of push-button switch test devices may be arranged in a test frame that mirrors a configuration of push-button switches. | 03-10-2011 |
| 20110089952 | PUSH-BUTTON TESTING SYSTEM - A system for testing a push-button switch is provided. The system for testing a push-button switch includes a switch test device. The switch test device has a flexible tab attached to a pushing member at an end of the flexible tab. A sensor is attached to the flexible tab. The sensor generates a signal that changes relative to a deformation of the flexible tab. A data collection system is connected to the switch test device and receives signals from the sensor. | 04-21-2011 |
| 20110133743 | FAULT DETECTION DEVICE AND METHOD FOR DETECTING AN ELECTRICAL FAULT - A fault detection device adapted for detecting an electrical fault at a medium voltage switchgear having at least one power module is provided. The fault detection device includes at least one input current sensor adapted for measuring at least one input current of the at least one power module of the medium voltage switchgear and at least one output current sensor adapted for measuring at least one output current of the at least one power module of the medium voltage switchgear. A comparator is provided which is adapted for comparing the at least one output current with the at least one input current. A control unit is adapted for determining an electrical fault at the at least one power module of the medium voltage switchgear on the basis of the comparison. | 06-09-2011 |
| 20110156712 | DEVICE AND METHOD FOR TESTING MAGNETIC SWITCHES AT WAFER-LEVEL STAGE OF MANUFACTURE - A testing mechanism for testing magnetically operated microelectromechanical system (MEMS) switches at a wafer level stage of manufacture includes an electromagnetic fixture configured to be received in a standard probe ring. The electromagnetic fixture is rotatable, relative to the probe ring, to permit adjustment of orientation of a generated magnetic field relative to the MEMS devices of a subject wafer. The testing mechanism also includes a probe card with probes positioned to contact test pads on the subject wafer. During operation, the probe card is positioned over the wafer to be tested, with the test probes in electrical contact with respective contact pads of the wafer, and the electromagnetic fixture is positioned above the probe card. An electrical potential is applied across the switches on the subject wafer, and the electromagnetic fixture is energized at selected levels of power and duration. Current flow across each switch is measured to determine one or more of: open circuit contact resistance, closed circuit contact resistance, response time, response to switching magnetic field, frequency response, current capacity, critical dimensions, critical angles of magnetic field orientation, etc. Wafer level testing enables rejection of non-compliant switches before the cutting and packaging levels of manufacture. | 06-30-2011 |
| 20120074948 | METHOD FOR TESTING THE FUNCTIONALITY OF THE ELECTROMAGNETIC TRIPPING OF A SWITCH, IN PARTICULAR OF A CIRCUITBREAKER FOR LOW VOLTAGES - A method is disclosed for testing the functionality of the electromagnetic tripping of a switch, in particular of a circuit breaker for low voltages, which has switching contacts which are opened with the aid of a tripping shaft, which is held prestressed by a switching mechanism and is unlatched by a tripping magnet which for this purpose has a winding through which a current is sent for tripping. In order to test the functionality with relatively little effort, it is proposed in at least one embodiment that the winding is connected as an inductance in a resonant circuit, the resonant frequency of the resonant circuit is detected, and the functionality of the tripping magnet is assessed on the basis of the detected resonant frequency. | 03-29-2012 |
| 20120081124 | SYSTEM AND METHOD FOR DETERMINING PHYSICAL STATUS OF SWITCH ELEMENTS - System and methods are provided for monitoring a state of a switch element connecting a DC power supply to a load. A system includes a transformer having first and second windings, where a first end of the second winding electrically coupled to a first switch node of the switch element. The system also includes a transmit circuit configured for providing a waveform at the first winding and a sensor element having galvanically isolated input and output nodes for inducing a monitor signal at the output nodes in response to a signal at the input nodes. The system further includes a receive circuit coupled to the output nodes and configured for generating one or more output signals in response to the monitor signal. The system also includes capacitor elements for providing DC isolation for the second winding with respect to the first switch node and the sensor element. | 04-05-2012 |
| 20120105065 | DIAGNOSIS OF HEV/EV BATTERY DISCONNECT SYSTEM - A circuit that detects if contacts in an HV contactor have been welded or stuck closed. The circuit includes a controller that generates a short duration pulse signal that closes a driver switch and allows current flow through a coil in the HV contactor. The current flow is converted to a voltage by a sensor, where the voltage is received by the controller. The controller uses the voltage, such as by comparing the voltage to a stored representative voltage of the coil current for when the HV contactor is open, to determine whether the HV contactor is closed, and possibly welded or stuck closed, or partially closed. The sensor can be the driver switch or another device, such as a resistor. | 05-03-2012 |
| 20120176139 | SYSTEM AND METHOD FOR SENSING MULTIPLE USER INPUT SWITCH DEVICES - A system and method for sensing multiple user input switch devices uses a generated sense current that corresponds to an electrical current through a node to which the user input switch devices are connected to sense current states of the user input switch devices. The sense current is used to produce multiple output signals that indicate the current states of the user input switch devices. | 07-12-2012 |
| 20120249150 | SWITCH STATUS DETECTION CIRCUIT FOR MULTIPLE LIGHT LEVEL LIGHTING SYSTEMS - A switch status detection circuit is provided, including three input terminals and a ground terminal. Two input terminals connect to a power supply via respective switches, receiving a respective voltage signal. The third connects to the power supply, receiving a neutral signal. A neutral synchronization circuit, between the third and the ground terminal, generates a positive pulsed current signal as a function of the neutral signal. Two capacitors, each with a respective first terminal connected to a corresponding input terminal, and a respective second terminal connected to the ground terminal, are charged by the current signal when the capacitor's corresponding switch is in an off state. Respective output terminals are coupled to each capacitor's first terminal to provide respective control signals, indicating the respective switch's state as a function of a voltage level across that capacitor. Each control signal has a logic level corresponding to its respective switch's state. | 10-04-2012 |
| 20120256636 | METHOD FOR DETECTING A BREAKDOWN IN A SWITCHING CURRENT SOURCE AND CORRESPONDING POWER SOURCE - A method of detecting a fault of a switching electricity source having a control stage responsive to a setpoint signal to deliver a control signal that is modulated with a predetermined duty ratio (α) to a power stage that is to deliver electricity to a load. The method includes the steps of: determining at least one nominal value (α | 10-11-2012 |
| 20120313646 | CURRENT ESTIMATION CIRCUIT - To provide a current estimation circuit that can achieve a reduction in cost, a miniaturization, and a suppression of switching loss, and estimate an inductor current with a high degree of accuracy, despite a variation in the inductance value of the inductor. A current flowing through a switching element ( | 12-13-2012 |
| 20120319692 | MOBILE SYSTEM FOR MEASURING ABNORMALITY DETECTION PARAMETERS OF A SWITCH IN A HIGH VOLTAGE ELECTRICAL SUBSTATION - There is provided a method for measuring abnormality detection parameters of a disconnect switch, comprising: releasably connecting a first sensor to the disconnect switch, the first sensor adapted to measure a first parameter related to a position of an arm of the disconnect switch, the disconnect switch comprising a rotating actuation element operatively connected to the arm for moving the arm between a closed position and an open position; releasably connecting a second sensor to the rotating actuation element, the second sensor adapted to measure a second parameter related to a torque of the rotating actuation element; moving the arm using the actuation element; measuring and storing in memory the first and second parameters while the arm is moving; and disconnecting the first and second sensors | 12-20-2012 |
| 20130033266 | TESTING APPARATUS FOR PIEZOELECTRIC/ELECTROSTRICTIVE DEVICE - There is provided a method for testing a piezoelectric/electrostrictive actuator, wherein the displacement of a piezoelectric/electrostrictive actuator is estimated on the basis of the relations between one or more frequency characteristic values selected from the group consisting of the heights and areas of the peaks of the resonance waveforms and the difference of the maximum and minimum of the first order or first to higher orders of the resonance frequency characteristic values of the piezoelectric/electrostrictive actuator and the k-th order (k=1 to 4) of the first or first to higher orders of resonance frequencies. According to this piezoelectric/electrostrictive actuator testing method, a piezoelectric/electrostrictive actuator can be tested with high precision without actually driving the same as a product and without being accompanied by any disassembly/breakage. | 02-07-2013 |
| 20130106422 | Switch Detection System | 05-02-2013 |
| 20130134982 | Method for Evaluating the Mechanical Performances of a Switchgear Device and Switchgear Device for Implementation of Said Method - A method for evaluating the mechanical performances of a switchgear apparatus comprising at least one pole having:
| 05-30-2013 |
| 20130134983 | Method for Evaluating the Mechanical Performances of a Switchgear Apparatus and Switchgear Apparatus for Implementation of Said Method - A method for evaluating the mechanical performances of a switchgear apparatus comprising at least one pole having:
| 05-30-2013 |
| 20130176032 | METHOD AND APPARATUS FOR DETECTING A ZERO-VOLTAGE CONDITION ACROSS FOUR QUADRANT SWITCHES - A method and apparatus for detecting a zero-voltage condition. In one embodiment, the method comprises generating a first current that is proportional to a voltage across a four-quadrant (4Q) switch; generating a reference current, wherein the reference current is equal to a value of the first current when of the voltage across the 4Q switch is at a predefined value; comparing the first current to the reference current; and generating an indication of a zero-voltage condition across the 4Q switch when the first current is less than the reference current. | 07-11-2013 |
| 20130187656 | Methods for Monitoring Functionality of a Switch and Driver Units for Switches - A gate driver unit includes an input stage, an output stage, a read/write interface, and a monitoring stage. The input stage is configured to receive control signals and forward the control signals to the output stage and the monitoring stage. The read/write interface is configured to receive configuration data and forward the configuration data to the monitoring stage. The monitoring stage is configured to capture and evaluate signals of a power switch connected to the gate driver unit and synchronize the evaluation of the signals of the power switch to the control signals. The evaluation of the signals and the synchronization of the evaluation are based on the configuration data. | 07-25-2013 |
| 20130229186 | SWITCH FAILURE DETECTION DEVICE, BATTERY PACK INCLUDING THE SAME, AND METHOD OF DETECTING FAILURE OF ELECTRONIC SWITCH - A switch failure detection device includes a switch, a rectifier, a switch voltage detection circuit, and a controller. The switch is connected in a path in which a charging current to and a discharging current flow. The rectifier passes a discharging current by bypassing the switch when the switch is turned off. The detection circuit detects a voltage between an input and an output of the switch. The controller is configured to: determine whether the electric storage device is in a discharging state; send an off-command signal to the switch if the electric storage device is in the discharging state; receive the voltage; determine an input-output voltage of the switch based on the voltage; determine whether the input-output voltage is lower than a first reference voltage; and determine the switch has a turn-off problem if the input-output voltage is lower than the first reference voltage. | 09-05-2013 |
| 20130241563 | Method for Detecting a Fault of an Operating Switch for initiating a Vehicle Function of a Vehicle and Operating Switch for Carrying Out the Method - A method for detecting a fault of an operating switch connected to an evaluating unit by at least one signal. The switch having at least a first switch circuit for initiating a vehicle function. A signal that specifies the switch position is sensed by the evaluating unit. The first switch circuit is connected to a first potential of the vehicle electrical system and to the signal line to form a first contact branch. The first switch circuit is bridged by a diode device in the non-conducting direction with respect to the first potential, the evaluating unit generates a test voltage, which is greater than the first potential, the test voltage is applied to the signal line, and, the potential being applied to the signal line of the first contact branch is evaluated by means of the evaluating unit in order to detect a fault. | 09-19-2013 |
| 20130257438 | TESTING A CIRCUIT ASSEMBLY THAT CONTAINS A PIEZOELECTRIC SWITCH - A method of testing a circuit assembly that includes a piezoelectric switch may include driving a DC current into the piezoelectric switch. The method may further include measuring the time interval it takes to develop a predetermined voltage across the piezoelectric switch and comparing the measured time interval with a first predetermined time interval and a second predetermined time interval. The method may include identifying the circuit assembly as defective when the measured time interval is either less than the first predetermined time interval or more than the second predetermined time interval, and otherwise identifying the circuit assembly is operational. | 10-03-2013 |
| 20130257439 | METHOD FOR OPERATING A SWITCHING ELEMENT - A method is described for operating at least one magnetic switching element, at least one first connection of at least one sensor device being connected to at least one connection of a coil of the magnetic switching element, and the first connection or an additional connection of the sensor device being connected to a reference potential, and a measuring state being established in which at least one connection of the coil is essentially at least temporarily decoupled from the reference potential and/or from a source activating the coil, and at least one signal of at least one sensor of the sensor device being ascertained in the measuring state from at least one electrical potential at at least one connection of the coil. | 10-03-2013 |
| 20130271146 | BATTERY SYSTEM - A battery system includes an assembled battery having a plurality of batteries connected in series, a discharge circuit having a first resistor and a discharge switch connected in series, which is connected in parallel to the respective batteries to discharge the respective batteries, a comparator that compares voltages of the respective batteries with a given voltage through the first resistor, and a diagnostic circuit that conducts a fault diagnosis of the discharge switch on the basis of comparison results of the comparator. | 10-17-2013 |
| 20130271147 | DEVICE AND METHOD FOR MONITORING AN INTEGRITY OF A SERIES-CONNECTION OF A PLURALITY OF SWITCHES - A device for monitoring a space by changing a sequence of a serial interconnection of closing contacts, in particular of cover switches in a security housing, having a series circuit variation apparatus, a security cover, at least two closing contacts, and a protective circuit, wherein said at least two closing contacts each have an open, electrically nonconductive state and a closed, electrically conductive state, wherein said security cover is set up to put each of said at least two closing contacts in a closed, electrically conductive state, wherein said protective circuit is set up to detect an opening of at least one of said at least two closing contacts, wherein said series circuit variation apparatus serially interconnects said at least two closing contacts, wherein the sequence of the serial interconnection of said at least two closing contacts can be changed by said series circuit variation apparatus. | 10-17-2013 |
| 20130285666 | Interlock Switch Circuit with Single Fault Detection - A testing system to test safety interlock switches to ensure that they are operating normally comprising a test loop circuit | 10-31-2013 |
| 20130320986 | SWITCH FAILURE DIAGNOSIS DEVICE AND ELECTRIC STORAGE APPARATUS - A switch failure diagnosis device for using in a current path between an electric device and an electric storage device includes plural switches, a switch terminal voltage detector, and a controller. The switches are connected parallel to each other in the current path. The switch terminal voltage detector outputs a switch terminal voltage detection signal. The controller is configured to: select the switches at different time in sequence and input an open instruction signal to each switch at the time when the switch is selected; and determine, based on the switch terminal voltage detection signal output while the open instruction signal is given, that at least one of the switches has a failure if the detected voltage is in a failure determination range. | 12-05-2013 |
| 20140028319 | TANK-TYPE SWITCHING DEVICE - A discharge location determination unit includes: discharge detection circuits connected to metal electrodes, respectively, and to which a signal due to discharge is input; and a calculation circuit to which signals output from the discharge detection circuits are input, wherein, if the intensity difference or intensity ratio between the two output signals is within a predetermined value, the calculation circuit determines that the discharge location is inside a tank, otherwise the calculation circuit determines that the discharge location is outside the tank. | 01-30-2014 |
| 20140062492 | TESTING A FUSE - A method of testing a fuse in apparatus for monitoring electrical insulation surrounding first and second electrical conductors in a cable, the fuse being connected to the conductors, comprises: applying an electrical signal, with respect to a reference, to the fuse from a source; obtaining a value for the resistance of the insulation with respect to the reference; determining if the resistance value is greater than a fuse test resistance threshold and, if it is, causing the application of the signal to cease; and monitoring the decay of the signal to determine if the time for it to decay below a set value exceeds a set time limit, indicative of the fuse being satisfactory, or is less than the limit indicative of the fuse being blown. | 03-06-2014 |
| 20140077814 | METHOD AND SYSTEM FOR TESTING MATRICES AND METHOD FOR CONTROLLING VOLTAGE CLOCKS - The present invention discloses method and system for testing matrices and method for controlling voltage clocks, comprising the steps of: providing a matrix circuit comprising a plurality of first end points and a plurality of second end points, wherein there is a path having a switch thereon between each of the first end points and a corresponding one of the second end points; supplying pulse voltages to the first end points or the second end points in accordance with a time sequence, wherein each of the pulse voltages has a given time width and there is no temporal overlap between the pulse voltages; and determining whether or not each of the switches functions properly through simultaneous depressing of more than one of the switches and on the basis of the amounts of time for which respective pulse voltages function at the first end points or the second end points. | 03-20-2014 |
| 20140097850 | TERMINAL BLOCKS INCLUDING INTEGRAL SAFETY RELAYS HAVING INDEPENDENTLY TESTABLE CONTACTS - Terminal blocks including integral safety relays having independently testable contacts are disclosed. An example apparatus includes a terminal block body couplable to an electronics cabinet or mounting rail. The terminal block body includes a first slot to receive a first circuit and a second slot to receive a second circuit. The apparatus includes a first contact and a second contact that are externally accessible when the terminal block body is coupled to the electronics cabinet or the mounting rail. The apparatus includes a first switch and a second switch to selectively couple the first contact and the second contact and a test point coupled between the first switch and the second switch. The test point is to enable the first switch and the second switch to be independently testable to verify operability when the terminal block body is coupled to the electronics cabinet or the mounting rail. | 04-10-2014 |
| 20140176140 | SWITCH FAILURE DIAGNOSIS DEVICE AND ELECTRIC STORAGE APPARATUS - A switch failure diagnosis device for using in a current path between an electric device and an electric storage device includes plural switches, a switch terminal voltage detector, and a controller. The switches are connected parallel to each other in the current path. The switch terminal voltage detector outputs a switch terminal voltage detection signal. The controller is configured to: select the switches at different time in sequence and input an open instruction signal to each switch at the time when the switch is selected; and determine, based on the switch terminal voltage detection signal output while the open instruction signal is given, that at least one of the switches has a failure if the detected voltage is in a failure determination range. | 06-26-2014 |
| 20140184231 | TEST SYSTEM FOR A DOME SWITCH - A test system having a piece of film type pressure sensor configured under a dome switch for collecting a physical parameter selected from a group consisted of Actuation Force (AF), Timing T1, Contact Force (CF), Timing T2, On-Force (OF), Snap Ratio, and Key Journey of the dome switch is provided to facilitate product sorting according to one of the parameters. | 07-03-2014 |
| 20140312909 | PROGRAMMABLE CONTACT INPUT APPARATUS AND METHOD OF OPERATING THE SAME - At embedded control logic, electrical information with respect to a switching device is sensed. A decision is made as to an operation of the control logic based on the sensed information. The operation may be one or more of setting a wetting current or determining whether the electrical information is within an acceptable range. | 10-23-2014 |
| 20140320138 | LOOP POWERED ISOLATED CONTACT INPUT CIRCUIT AND METHOD FOR OPERATING THE SAME - A voltage is sensed at a switching device and the voltage is associated with a status of a switching device. The sensed voltage is converted to a useable voltage regardless of the value and type of the sensed voltage. At a single self-contained integrated circuit that is powered by the sensed voltage, the usable voltage is converted into a digital representation. The digital representation is configured to be usable by a processing device to determine the value of the voltage at the switching device. | 10-30-2014 |
| 20140320139 | APPARATUS AND METHOD FOR REMOTE MONITORING OF PARTIAL DISCHARGE IN ELECTRICAL APPARATUS - Apparatus for remote monitoring of partial discharge events in electrical apparatus | 10-30-2014 |
| 20140361779 | CIRCUIT ARRANGEMENT AND PROCESS FOR DETECTING A SWITCH POSITION - A circuit arrangement for detecting a switch position includes a first node configured to be connected to one phase of a power network, a third node, and a micro-controller. A switch is arranged between the first node and the third node. A resistor is arranged parallel to the switch between the first node and the third node. A connection on the micro-controller is connected to the third node. The micro-controller is programmed to compare a voltage present at the connection against a reference voltage and to determine from this comparison whether the switch is open or closed. | 12-11-2014 |
| 20150035538 | METHOD FOR MONITORING AN ON-LOAD TAP CHANGER - The invention relates to a method for monitoring an on-load tap changer that is used to switch between winding taps of a tapped transformer without interrupting the load current and is actuated using a motor drive. According to the invention, prior to the actual load switching process, the on-load tap changer is initially moved a short distance, preferably against the direction in which the load is subsequently switched. In said initial process, it is verified whether the on-load tap changer has moved, i.e. has left its previous stationary position, and/or whether the torque on the motor drive has exceeded a predefined threshold value. The actual load switching process takes place only once the test has yielded a positive result. | 02-05-2015 |
| 20150331048 | MEMBRANE SWITCH CIRCUIT TESTING SYSTEM - A membrane switch circuit testing system includes a testing module and a connection element. After the connection element is connected with a membrane switch circuit and the testing module, the testing module assigns an identification code to a key intersection of the membrane switch circuit. When the key intersection is depressed, an equivalent circuit is defined by the depressed key intersection and a corresponding fixed resistor of the testing module. Moreover, the testing module acquires an intersection resistance value of the depressed key intersection from the equivalent circuit. Consequently, the testing module judges whether the depressed key intersection is qualified according to the intersection resistance value. | 11-19-2015 |
| 20150362555 | PRODUCT OUTER SHELL TO INHIBIT CONSUMER DISASSEMBLY - A product outer shell containing its own record of any private and unwarranted disassembly includes a first outer element, a second outer element detachably connected with the second outer element, a consumer disassembly inhibiting structure. The consumer disassembly inhibiting structure includes a circuit board, a plurality of special conductive bodies, a plurality of general conductive bodies, and a positioning plate. The special conductive bodies and general conductive bodies all have the same structures and each is secured on the circuit board to electrically connect to a chip located on the circuit board. A conductive piece is positioned on the positioning plate and is coupled with the special conductive bodies. The chip is configured to record electric connections between the special conductive bodies and the conductive piece, the original electric connections being changed to other or no connections after any disassembly of the product outer shell. | 12-17-2015 |
| 20150369853 | Testing device for propagation characteristic of electromagnetic wave in gas insulated switchgear and testing method therefor - A testing device for propagation characteristic of electromagnetic wave in gas insulated switchgear includes an ultrahigh frequency signal generator, a GIS testing chamber, an emitting antenna and a receiving antenna which are provided inside the GIS testing chamber. A detachable disc insulator is provided between the emitting antenna and the receiving antenna. Both terminals of a GIS testing chamber are sealed by polyurethane wave-absorbing sponge; the ultrahigh frequency signal generator is connected with the emitting antenna, and the receiving antenna is connected with a oscilloscope. A guide rod which is fixed by the disc insulator is provided in the GIS testing chamber. The present invention is capable of achieving testing propagation characteristic of partial discharge ultrahigh frequency electromagnetic wave signal of a gas insulated switchgear in a laboratory, so as to master attenuation characteristics of the partial discharge ultrahigh frequency electromagnetic wave signal, and lay a laboratory foundation for accurate detection of the partial discharge of the gas insulated switchgear by field use of an ultrahigh-frequency method. | 12-24-2015 |
| 20150369866 | Apparatus for Detecting a Switch Position - An apparatus for detecting a switch position includes a first circuit node and a second circuit node configured to connect the apparatus to an AC electric voltage. The apparatus further includes a switch connected between the first circuit node and a third circuit node, and a resistor connected between the first circuit node and the third circuit node. The apparatus also includes a microcomputer device, and a switched-mode power supply apparatus connected between the second circuit node and the third circuit node. The switched-mode power supply apparatus is configured to provide a supply voltage to the microcomputer device at the third circuit node. The microcomputer device is configured to calculate a position of the switch from an electric detection voltage dropped between the third circuit node and the second circuit node. | 12-24-2015 |
| 20150377968 | BATTERY-ASSISTED SAFETY CIRCUIT MONITORING SYSTEM - A monitoring system for transport installations for persons, which installations are arranged as elevator, escalator or moving walkway, includes at least one interrogation device and at least one safety switch, which switch is connected with the interrogation device by an electrical safety circuit and which monitors a door lock of the transport installation for persons. An independent energy supply device supplies power to the interrogation device. | 12-31-2015 |
| 20160041227 | ON-LINE MONITORING SWITCH CONTACT LIFESPAN OF ON-LOAD TAP-CHANGER IN TRANSFORMERS - A device and a method are described for online monitoring the lifespan of switch contacts of a transformer on load tap changer (OLTC). The method includes connecting a current signal sensor of a voltage adjustment winding of the power transformer with a current signal processing circuit thereof; connecting the current signal sensor with an analog-digital converter of an industry control computer (IPC). When a switch signal is received, the switch current value and the number of switching operation of the OLTC are used for comparison with a lifespan relationship as a function of number of switch operations of a switch contact having similar specifications, wherein the relationship indicates a critical current value indicating the need for replacement. The device includes the IPC, the signal processing circuit, a monitor, and a keyboard. | 02-11-2016 |
| 20160052747 | PREVENTATIVE MAINTENANCE BY DETECTING LIFETIME OF COMPONENTS - A system for providing preventative maintenance of switchable components includes a load-moving system including one or more switchable components. The system also includes a microcontroller configured to operate the one or more switchable components of the load-moving system, to determine a number of switching events of the one or more switchable components and to perform a preventative maintenance action based on determining that the number of switching events is greater than a threshold number of switching events. | 02-25-2016 |
| 20160061896 | POWER-SUPPLY CONTROL DEVICE AND PROGRAMMABLE LOGIC CONTROLLER - A power-supply control device includes a power-source input terminal, an output circuit outputting power to load, power interrupting circuits connected in parallel between the power-source input terminal and the output circuit, and a control circuit controlling each power interrupting circuit separately. Each power interrupting circuit includes an interrupting circuit and a switch element connected in series between the power-source input terminal and the output circuit. The interrupting circuit permits power to pass when receiving a passage permitting signal from the control circuit and interrupts passage of power when not receiving the passage permitting signal. ON/OFF of the switch element is controlled by the control circuit. When any of the power interrupting circuits is set as a diagnostic target circuit, the control circuit stops supplying the passage permitting signal to the interrupting circuit of the diagnostic target circuit and turns off the switch element of the diagnostic target circuit. | 03-03-2016 |
| 20160061897 | SYSTEM FOR ANALYSIS OF PARTIAL DISCHARGE DEFECTS OF GAS INSULATED SWITCHGEAR - The present invention relates to a system for analysis of partial discharge defects of a gas insulated switchgear capable of allowing a user to precisely analyze a defect of a gas insulated switchgear due to a partial discharge, by providing both partial discharge signal information on a partial discharge signal sensed by a detecting sensor, and detection signal information on a detection signal sensed by one or more neighboring sensors adjacent to the detecting sensor, to a monitor. | 03-03-2016 |
| 20160084908 | SWITCH FAILURE DIAGNOSIS DEVICE AND ELECTRIC STORAGE APPARATUS - A switch failure diagnosis device for using in a current path between an electric device and an electric storage device includes plural switches, a switch terminal voltage detector, and a controller. The switches are connected parallel to each other in the current path. The switch terminal voltage detector outputs a switch terminal voltage detection signal. The controller is configured to select the switches at different time in sequence and input an open instruction signal to each switch at the time when the switch is selected, and to determine, based on the switch terminal voltage detection signal output while the open instruction signal is given, that at least one of the switches has a failure if the detected voltage is in a failure determination range. | 03-24-2016 |
| 20160109521 | SELF-TESTING GROUND FAULT CIRCUIT INTERRUPTER - A circuit interrupter including a ground fault circuit interrupter circuit structured to detect a ground fault based on current flowing in line and neutral conductors of the circuit interrupter, a ground fault circuit interrupter monitor circuit structured to perform a self-test on the circuit interrupter to determine the functional status of the ground fault circuit interrupter, and a bridge circuit structured to harvest power from the line and neutral conductors and supply said harvested power to the ground fault circuit interrupter circuit and the ground fault circuit interrupter monitor circuit. | 04-21-2016 |
| 20160116537 | SOLENOID TRANSIENT VARIABLE RESISTANCE FEEDBACK FOR EFFECTER POSITION DETECTION - Feedback from a solenoid is achieved by adding at least one variable resistance in parallel with the solenoid current feedback circuit for position detection. The resistance has current flowing therethrough when a switching device actuated by the solenoid is in one position or transitions from one position to at least one other position. A feedback current may be measured in the current feedback circuit and the position of the switching device in response to actuation thereof by the solenoid may be determined from the measured feedback current. | 04-28-2016 |
| 20160124040 | DEVICE AND METHOD FOR MONITORING A POWER SEMICONDUCTOR SWITCH - A device for monitoring a power semiconductor switch includes a circuit section for applying to the power semiconductor switch an HF voltage having a frequency above a switching threshold of the power semiconductor switch, a shunt resistor for detecting an actual HF current resulting from application of the HF voltage to the power semiconductor switch, a monitoring circuit for comparing the actual HF current with an expected HF current that depends on a switching state of the power semiconductor switch when the HF voltage is applied to the power semiconductor switch, and a comparator for generating a power semiconductor status signal depending on a result of the comparison. A corresponding method for monitoring a power semiconductor switch of this type is also described. | 05-05-2016 |
| 20160124046 | METHOD FOR DETECTING INTERLOCK FAILURE OF CONNECTOR IN ECO-FRIENDLY VECHICLE - A method includes: detecting, by a motor controller, an interlock failure of a connector for connecting between a gate driver and the motor controller, the connector being connected to an inverter for driving a motor in an eco-friendly vehicle; and determining, by the motor controller, that the interlock failure of the connector has occurred when an output value of a signal processor provided in the motor controller so that a sensing signal is inputted from the gate driver through the connector is detected as a value beyond a predetermined normal sensing range. | 05-05-2016 |
| 20160131713 | SYSTEMS AND METHODS FOR SWITCH HEALTH DETERMINATION - The embodiments described herein provide systems and methods for determining the health status of a sensed switch. In general, the embodiments described herein determine a measure of a health status of the sensed switch by comparing a voltage on the sensed switch, ascertaining a first comparator state under one test condition and ascertaining a second comparator state under a second test condition. The first comparator state and the second comparator state are and then compared to determine the measure of the health status of the sensed switch. | 05-12-2016 |
| 20160139206 | CONTACT WEAR DETECTION BY SPECTRAL ANALYSIS SHIFT - A contact wear detector includes an electrical contact | 05-19-2016 |
| 20160146889 | MONITORING CIRCUIT FOR DETECTING A SWITCHING STATE OF AN ELECTRICAL SWITCHING CONTACT AND METHOD THEREFOR - The invention relates to a circuit ( | 05-26-2016 |
| 20160163474 | SWITCH-OPERATION-DETERMINING DEVICE - A switch-operation-determining device provided with a determination circuit for determining whether a switch has been operated, wherein the determination circuit is provided with: a first resistor, a first diode, and a second diode serially connected in the stated order from the power-source side, such that current flows from the power source toward a ground; and a control unit for comparing the anode potential of the first diode and a threshold potential, and determining that the switch has been operated when the anode potential of the first diode is lower. Of the first diode and the second diode, it is the second diode that is connected in parallel with the switch. | 06-09-2016 |
| 20160178672 | SYSTEM AND METHOD FOR SWITCH STATUS DETECTION | 06-23-2016 |
| 20160182033 | SYSTEM AND METHOD FOR SWITCH STATUS DETECTION | 06-23-2016 |
| 20160252577 | DEVICE AND METHOD FOR CHECKING A SWITCHING OPERATION OF AN ELECTRIC SWITCH | 09-01-2016 |
