Abstract: The power conversion device includes an AC power source, a power conversion unit, and an LC filter unit arranged between the AC power source and the power conversion unit, and the LC filter unit has a temperature detection element provided in one part or in a plurality of parts configuring the LC filter unit, and the power conversion unit has a temperature detection unit configured to receive temperature data detected by the temperature detection element and a determination unit configured to calculate temperature rise values of one or plurality of parts, or temperature differences between the plurality of parts based on the temperature data received by the temperature detection unit and to determine whether or not there is an abnormality in the LC filter unit in accordance with the calculation result.

Abstract: A method and system for determining short, open, and good connections using digital input and output (IO) structures in a device under test (DUT) continuity test, through the combined methods of using resistance-capacitance (RC) delay, time domain reflectometry (TDR), and forcing voltage on to a single IO pin of the DUT while measuring voltage on remaining IO pins of said DUT. In one embodiment, the combined methods are executed without the DUT in a test socket to produce a first set of test values and also with the DUT in a test socket to produce a second set of test values. The first and second sets of test values are compared to determine if one or more circuits of the DUT have a short circuit, an open circuit, or are a good (have an electrical connection that is not a short circuit or an open circuit) circuit.

Abstract: The present disclosure provides methods and devices for testing a connection between speakers and a power amplifier. The disclosed methods and devices solve a problem that, upon a connection test for a power amplifier which has a booster power source, when a midpoint potential of the power amplifier and the voltage of the speaker connection terminal are compared, and it is determined that short-circuiting occurs on a ground side when the potential of the speaker connection terminal is lower than the midpoint potential, a wrong test is conducted if a midpoint potential is higher than a battery voltage.

Abstract: Circuits, methods, and apparatus that may reduce the number of connector receptacles that are needed on an electronic device. One example may provide a unified connector and circuitry that may be capable of communicating with more than one interface.

Abstract: The present invention discloses a power circuit having multiple stages of charge pumps. The power circuit comprises a first charge pump, a second charge pump, a voltage stabilizing capacitor, and an output capacitor. The first charge pump adjusts an input voltage and produces a first output voltage. The second charge pump adjusts the first output voltage, produces a second output voltage, and outputs the second output voltage for driving a loading. The voltage stabilizing capacitor is coupled between the first and second charge pumps and connected externally to the output of the first charge pump. The output capacitor is coupled to the second charge pump for providing the second output voltage. According to the present invention, the effect of supplying large transient currents to the loading can be achieved by connecting externally the voltage stabilizing capacitor to the output of the first charge pump.

Abstract: Techniques for detecting mating and un-mating of a first connector with a second connector include providing a pulsed voltage signal at a contact of the second connector and measuring a rate of rise of voltage at the contact. If the measured voltage at the contact exceeds a threshold voltage during the time the pulsed voltage signal is applied, then it is concluded that the first connector is not present and not mated with the second connector. If the measured voltage is lower than or equal to the threshold voltage during the time of application of the voltage pulse, it is concluded that the first connector is present and mated with the second connector.

Abstract: A blood testing meter with a fool-proofing function has a measuring display unit, a connector and a blocking structure. The connector is mounted in the measuring display unit and has at least one guiding groove, and the at least one guiding groove is formed through an outer side of the measuring display unit. The blocking structure is mounted on the outer side of the measuring display unit and is adjacent to an opening of the connecting groove. When the blood test strip is inserted from a wrong direction into the connector, the slot would be engaged with the blocking structure to prevent the blood test strip from being inserted into the connector.

Abstract: A system (10) and method (200) are disclosed for detecting electrical connectivity. The system includes at least one power distribution conductor (18) and at least one electrical power pad (20) comprising a detection pad (28) that is electrically isolated from a remaining portion of the respective at least one electrical power pad (20). A measured parameter at the detection pad (28) provides an indication of electrical connectivity between the at least one power distribution conductor (18) and the respective at least one electrical power pad (20).

Abstract: A method for maintaining a contact of a connection jig for connecting between a target object to be subjected to an electrical test and a testing apparatus configured to conduct the electrical test on the target object includes: detecting a change in voltage upon supply of power for the electrical test to a test point on the target object through the contact; and issuing maintenance information indicating the contact is abnormal, upon detection of a portion where the voltage does not successively rise.

Abstract: A coaxial connector including a connector main body is formed of an upper housing and a lower housing. An outer conductor includes a circular cylinder portion surrounding the periphery of a hole of the connector main body and configured to be inserted into an outer conductor of a mating coaxial connector. A main body portion is provided on the connector main body, and a fixation portion that is extended from the main body portion so as to sandwich the connector main body along with the main body portion. A fixed terminal is anchored to the connector main body. A movable terminal includes a fixation portion anchored to the connector main body, and a plate spring that extends from the fixation portion toward the fixed terminal and overlaps with the fixation portion at tip ends of the plate spring.

Abstract: An inspection apparatus for inspecting an inspection object. The inspection object includes a base body and wiring passing through the base body. The inspection apparatus includes an insulating substrate, a first electrode in the substrate with a portion of the first electrode exposed from a surface of the substrate to form a connection portion which may be electrically connected with the wiring, and a second electrode in the substrate. The first electrode and the second electrode are spaced apart, have mutually parallel portions, and are electrically insulated from each other.

Abstract: The disclosure provides a subscriber identity module (SIM) card holder, a base of the SIM card holder is provided with SIM card metallic contacts and first fixed metallic pins connected with the metallic contacts; the base of the SIM card holder is further provided with an additional metallic dome; the additional metallic dome is in uncompressed state and in contact with high level when the SIM card is not plugged in the SIM card holder, and is in compressed state and in contact with low level when the SIM card is plugged in the SIM card holder, delivering the high/low level with which it is in contact to a master chip of a mobile terminal to identify the plug-in and pull-out of the SIM card. The disclosure further comprises a mobile terminal and a method of identification of the hot-plug of a SIM card. With the help of the disclosure, problems of complex design, occupation of motherboard space, increased product cost in existing cell phones with hot-plug of SIM cards may be solved.

Abstract: An electrical joint monitoring device including a mounting assembly and a wireless transponder unit. The mounting assembly includes a first conductive contact structured to electrically connect to a first conductive member of an electrical joint and a second conductive contact structured to electrically connect to a second conductive member of the electrical joint. The wireless transponder unit includes a control unit electrically connected to the first and second conductive contacts and an antenna electrically connected to the control unit. The wireless transponder unit is configured to sense a voltage difference between the first and second conductive contacts, to generate information based on the voltage difference, and to output the information to a wireless reader unit via the antenna.

Abstract: A blade closing detector for an electric power switch includes a blade closing detector and an electronic or visual indicator. A first type of detector uses a gravity switch and a magnetic pickup to detect proper engagement between the blade and the switch. A second type of detector uses a sliding latch with a visual indicator rod to provide a visual indication of proper engagement of the blade within the jaws. A third type of detector uses a magnetic switch with a pivot arm and a dome shaped visual indicator. These detectors may be deployed individually or in combination and may be augmented with communication equipment to transmit switch status to a remote location. It will be understood that specific embodiments may include a variety of features in different combinations, as desired by different users.

Abstract: An antenna (L) diagnostic device of a resonant circuit associated with an amplifier includes a first transistor (HS1) and a second transistor (LS1) connected and an amplifier output (OUT1). The first transistor (HS1) and the second transistor (LS1) are mounted symmetrically and the amplifier output (OUT1) is located between the two transistors. The device includes: elements for measuring a current flowing in a connection of each of the transistors; first elements for generating an input signal connected to the first transistor; second elements for generating an input signal connected to the second transistor; and electronic elements (8) with an output supplying an output signal representative of the potential (V_OUT1) at the amplifier output. A method for diagnosing an antenna implementing such a device is also described.

Abstract: This disclosure relates generally to an electrical circuit and method. A capacitive element can be configured to be coupled in series with an electronic package component. A path resistance can be electrically coupled to the capacitive element. A driver can be configured to electrically charge the capacitive element. A voltage detector can be coupled to the capacitive element and configured to identify a condition of the electronic package component based on a measured voltage of the capacitive element.

Abstract: A method is provided for detecting a state of a connection between an electrically driven motor vehicle (1) and a corresponding charging station. The motor vehicle (1) has a control pilot (CP) function with a vehicle-side control pilot (CP) line (3). The method includes using a power line communication (PLC) chip (2) of the motor vehicle (1) to measure the length of a control pilot line between the motor vehicle and the charging station.

Abstract: A method and an apparatus for detecting disconnection from three-phase cable are provided. The method includes switching a plurality of switching elements included within switching units each corresponding to the respective phases of three-phase circuits configuring an output stage based on a predetermined criteria. In addition, the method includes applying a current generated in an input stage to the switching elements determined to be switched on and off based on the switching and detecting a current flow from the plurality of switching elements based on the applied current. Further, which of the three-phase circuits at the output stage is an open phase is determined based on the detection result.

Abstract: An exemplary testing device includes a shell, a motor, a wheel rotating eccentrically, a testing plug, and a sliding assembly. The sliding assembly is configured to move back and forth along a first direction in a first accommodating space of the shell. A periphery of the wheel abuts against two opposite sides of the sliding assembly. An eccentricity e defined between a eccentric hole of the wheel and the center of the wheel causes the sliding assembly to move back and forth along the first direction when the wheel rotates eccentrically. The testing plug connects to the sliding assembly and moves back and forth in unison with the sliding assembly, such that the testing plug can be inserted into the interface of the electronic device more than once.

Abstract: A hand tool for terminating and checking comprising a body which defines a means of storage of a connector to be terminated; an electrical checking module may be housed in the body, and is configured to electrically check the terminated connector when a connector pusher element is inserted in the terminated connector in the close or final position.

Abstract: An early warning and monitoring system is disclosed for battery cells and battery packs. During normal cycling of a battery, surface temperature, voltage, current and impedance may be monitored to determine if abnormalities exist in the battery and/or battery structure. The abnormalities may be advantageously detected using battery temperature characteristics, where the characteristics are subject to rule-based processing to determine impending battery failure. By receiving advance notice of failure, a warning signal may be transmitted to provide notice and/or allow corrective action to be taken.

Abstract: A method includes coupling an electrical cable, including multiple wires, to circuitry including a resistor bank connected to the wires. A gain of the circuitry is measured including the cable. Based on the measured gain, one or more of the wires in the cable that are defective are identified. An indication of the defective wires is output.

Abstract: A coil detection circuit thereof for an electromagnetic input device including a plurality of first loop coils and second loop coils includes a first detection unit, a second detection unit and a selection unit. When the selection unit selects one the first loop coils to emit an electromagnetic signal for each one of the second loop coils, each one of the second loop coils forms a second closed loop for receiving the electromagnetic signal, and the second detection unit detects a second signal. When one of the second loop coils forms an open circuit or short circuit, the second detection unit detects an open-circuit signal or a short-circuit signal.

Abstract: A detecting circuit for determining a connection status between a first pin and a second pin includes a signal generation unit, a logic unit and a determining unit. The signal generation unit is coupled to the first pin, and arranged for generating a first signal to the first pin. The logic unit is coupled to the signal generation unit and the second pin, and arranged for generating a determining signal according to the first signal inputted to the first pin and a second signal received from the second pin. The determining unit is coupled to the logic unit, and arranged for determining the connection status between the first pin and the second pin according to the determining signal.

Abstract: The present disclosure describes, in one example, a dual inline memory module socket. The dual inline memory module socket includes a base to receive a memory module. The base further comprises a first detection pin and a second detection pin. A latch may be coupled to the base and is to electrically couple the first detection pin to the second detection pin in a dosed position to enable a determination that the memory module is properly seated.

Abstract: A system (10) and method (200) are disclosed for detecting electrical connectivity. The system includes at least one power distribution conductor (18) and at least one electrical power pad (20) comprising a detection pad (28) that is electrically isolated from a remaining portion of the respective at least one electrical power pad (20). A measured parameter at the detection pad (28) provides an indication of electrical connectivity between the at least one power distribution conductor (18) and the respective at feast one electrical power pad (20).

Abstract: A method is provided for evaluating a crimp procedure in a manufacturing process. In one embodiment, the method includes, but is not limited to, completing a crimp procedure on a single wire. The method further includes, but is not limited to, evaluating a quality of the crimp procedure based on time-domain reflectometry. The method still further includes, but is not limited to, generating reporting data based on the evaluating.

Abstract: In a component-embedded circuit substrate having a plurality of capacitors embedded therein, the capacitors are connected in parallel, inspection electrodes are formed, and the inspection electrodes connect to respective terminal electrodes of the capacitor through via conductors. At the terminal electrodes of the capacitor, the connection position of the via conductors for connecting the inspection electrodes differs from the connection position of via conductors for connecting respective terminal electrodes of the capacitor.

Abstract: A detection system and method are provided. The detection system connects to a connector, and the connector includes a plurality of detection pins. The detection system includes a pin detection circuit and a detection device. The pin detection circuit connects to the plurality of detection pins and obtains output voltages of the detection pins. The pin detection circuit issues a determination voltage signal corresponding to the output voltages of the detection pins. The detection device determines whether the determination voltage signal is a low-level signal and issues a command when the determination voltage signal is a low-level signal.

Abstract: According to the disclosure there is provided a method for characterizing an electrical connection between an energy storage device of an electrical or hybrid vehicle and an external power supply. The method may include, in the vehicle, receiving an alternating waveform from the power supply, determining a fundamental frequency of the waveform, determining if the waveform is distorted, and, if it is determined that the waveform is distorted, determining if the distortion is an indication of a loose connection between the vehicle and the power supply. There is further provided a charging system for characterizing an electrical connection between an energy storage device of an electrical or hybrid vehicle and an external power supply.

Abstract: A signal test device for testing a tested interface includes a circuit board. The circuit board includes a processer, a first relay unit, a second relay unit, a selection relay unit, a channel selection key, a speed selection key, a channel display unit, a speed display unit, and an edge connector electrically connected to tested pins of the tested device. Each of the first and second relay units includes a plurality of relays. When a user presses the channel selection key and the speed selection key, a code and a speed of a tested signal output from tested interface can be tested conveniently and accurately, with a high-speed transmission through the first and second relay units, and can be shown on the the channel display unit and the speed display unit.

Abstract: An exemplary embodiment relates to a method for detecting a failure on a differential bus comprising the steps: detecting a first signal between the bus lines, detecting a second signal between the bus lines, and detecting the failure in case the first signal and the second signal do not show the same absolute value or in case the first signal and the second signal do not show nearly the same absolute value.

Abstract: A measuring device is provided: the measuring device including: a power supply configured to provide electric power to a chip via at least one of a chip connection and a chip-carrier connection; a chip arrangement receiving portion configured to receive a chip arrangement, the chip arrangement including a chip and a chip-carrier connected to the chip via one or more chip-to-chip-carrier connections; a detection portion including a plate; a detection circuit coupled to the plate and configured to detect an electrical signal from the plate; wherein the plate is configured such that it covers at least part of at least one of the chip, the chip-carrier, and the chip-to-chip-carrier connection; and wherein the plate is further configured such that at least part of the at least one of the chip, the chip-carrier, and the chip-to-chip-carrier connection is uncovered by the plate.

Abstract: A patient care system is configured for infusing fluid to a patient. The system includes a plurality of modular fluid infusion pumps that each has a connector for connecting to a modular programming unit or to one another. Systems and methods are configured for verifying that the connectors are reliably performing their functions or communicatively connecting the pumps to one another or to the programming unit.

Abstract: A system for monitoring a connection to an active pin of an integrated circuit (IC) die, includes an input/output (I/O) cell of an IC die, where the I/O cell is bonded to a bonding pad on a ball grid array (BGA) substrate. The system includes a test point on a printed circuit board (PCB) coupled to the bonding pad which forms an electrical/conductive pathway between the test point and the I/O cell. The system includes a clock waveform injected through a resistor into the test point.

Abstract: When a poor meter to socket connection occurs, there is the potential for arcing to develop which can result in a hot socket and a fire. Disclosed herein are methods for a meter to detect the occurrence of an arc condition in the socket by analyzing the RF noise on the channels of the communication spectrum used by the meter to communicate within its metering system. For example, by keeping a record of the normal background noise and looking for a broadband increase in the noise on all channels, arc detection can be achieved. Meter quantities such as temperature, current, voltage, and harmonic content may also be used in a standalone manner or in combination with broadband RF noise to detect an arc condition. A disconnect switch within the meter can be opened to remove the arc fault.

Abstract: A device and a method test the connection of a load connected to a connection point. The connection point is formed between a first switching element, which is connected between a high supply voltage potential and the connection point, and a second switching element, which is connected between the connection point and a low supply voltage potential. When the two switching elements are switched off, a potential is built up at the connection point by at least one voltage or current source connected to the connection point. A potential analyzing circuit is provided and checks whether the potential lies in a defined potential range. If this is the case, it is concluded that a line between the connection point and the load has been interrupted.

Abstract: An electronic device includes a port for connecting the electronic device to other electronic devices and a moisture detector configured to detect an electrically conductive liquid in the first port. The moisture detector is configured to maintain a voltage on a first electrical contact of the port and to detect a short circuit between the first electrical contact and a second electrical contact of the port. The moisture detector determines that the electronic device has been exposed to an electrically conductive liquid if the monitor module detects the short circuit. The moisture detector may also put the electronic device into safe mode if it is exposed to an electrically conductive liquid.

Abstract: A system and method described herein detects the presence of an unconnected condition in high voltage component cables in an electric or hybrid-electric vehicle having a high voltage battery or energy storage system. The system includes a DC-DC converter which is capable of operating in either a step-down mode (e.g., as a buck converter) or a boost mode. The system uses the DC-DC converter operating in boost mode to create a sufficient, yet safe, measuring voltage on the main high voltage cabling of the vehicle before allowing the energy storage system to begin supplying high voltage power to the system components. The measurements are taken at various points near the individual components to determine if the cable has become disconnected.

Abstract: A method for detecting an open current transformer in an electrical power system includes measuring for a voltage value on a secondary side of a current transformer. The method continues with observing the voltage value for a predetermined waveform and initiating corrective action in the electrical power system upon detection of the predetermined waveform.

Abstract: A connection diagnostic apparatus for a ground fault detector including an oscillator connected via a coupling capacitor to an electric circuit with a first connection line and a second connection line, and a voltage detector for detecting a voltage value between the oscillator and the coupling capacitor is provided with a first relay and a second relay provided in the first connection line and the second connection line, and a programmable controller. The programmable controller determines a connected state of the ground fault detector based on a change amount of a voltage value detected by the voltage detector when the first relay is turned on or off and determines the connected state of the ground fault detector based on a change amount of a voltage value detected by the voltage detector when the second relay is turned on or off.

Abstract: In a component-embedded circuit substrate having a plurality of capacitors embedded therein, the capacitors are connected in parallel, inspection electrodes are formed, and the inspection electrodes connect to respective terminal electrodes of the capacitor through via conductors. At the terminal electrodes of the capacitor, the connection position of the via conductors for connecting the inspection electrodes differs from the connection position of via conductors for connecting respective terminal electrodes of the capacitor.

Abstract: A repairable waterproof connector assembly (200) provides an access port (212) within the connector housing (201) to support wire management required for removal and reinstallation of the electrical insert (202) which can be achieved without removing the connector assembly (200) from its cable. Adding this access capability greatly reduces the time required to repair a damaged connector assembly (200). Wire management within the connector assembly (200) includes manipulating a wiring service loop (207) via access provided by the access port (212). Wire management supports access to reposition, remove, test and repair the electrical insert (202) having electrical pins and contacts (211). In applications requiring waterproof connectors, having the ability to test and repair the connector assembly without removing or cutting it from its cable is a significant timesaver and reduces cost.

Abstract: Devices and methods for enhancing electrical safety are provided herein. Devices testing the safety of light fixtures are provided. Also provided are a variety of testing tools for improving electrical safety. The devices are generally capable of wirelessly communicating with a computer, particularly a hand-held device such as a smart-phone or tablet. Methods for using the devices are also provided.

Abstract: In accordance with one embodiment, a method for testing a plurality of electronic components is provided, including subdividing the plurality of electronic components into a plurality of first groups and subdividing the plurality of electronic components into a plurality of second groups. The method may further include measuring, for each first group, an electrical parameter of an interconnection of the components of the first group; measuring, for each second group, an electrical parameter of an interconnection of the components of the second group, and determining which electronic components of the plurality of electronic components have a predefined property, on the basis of the result of the measurement of the electrical parameter for the first groups and on the basis of the result of the measurement of the electrical parameter for the second groups.

Abstract: An integrated circuit is provided with a voltage sag detector (VSD) within the integrated circuit package. The VSD is coupled to a voltage reference and to the power distribution bus within the integrated circuit. The VSD has an output for indicating when a voltage level on the power distribution bus sags below a voltage level provided by the voltage reference.

Abstract: An in-circuit testing auto open and close system, apparatus and method includes an in-circuit tester having an upper panel and a lower panel, wherein the upper and lower panels are used to test electrical connections of one or more electronic units. One or more actuators are each coupled to both the upper panel and the lower panel such that they are able to move the upper and lower panels with respect to each other. As a result, a controller coupled with the in-circuit tester and the actuators is able to cause the actuators to automatically close the panels such that the panels sandwich the electronic units at the beginning of a testing program and to automatically open the panels such that the panels are separated at the end of the testing program.

Abstract: A system for monitoring a die connection includes a die bonded to a substrate and a connection indicator circuit coupled to a monitor pad of the die. The connection indicator circuit is configured to detect a connection failure of the monitor pad. A signal corresponding to the monitor pad of the die is monitored, and an indication of a pad connection failure associated with the monitor pad is provided in response to a change in the monitored signal.

Abstract: An exemplary load circuit includes a switch unit and a current dividing circuit. The switch unit includes a number of switches. The current dividing circuit includes a number of sub-circuits. A terminal of a resistance module of each of the sub-circuits is connected to both a power terminal and a terminal of a corresponding one of the switches. The other terminal of the resistance module of each of the sub-circuits is connected to a drain of a transistor of each of the sub-circuits. A source of the transistor is connected to ground. A gate of the transistor is connected to ground, and is also connected to another terminal of the corresponding switch.

Abstract: Systems and methods for determining the configuration of a connection between two devices by measuring an electrical characteristic are provided. Using the measured electrical characteristic, a device is able to select an appropriate communication interface, such as serial, Universal Serial Bus (USB), FireWire, parallel, PS/2, etc., and configure itself appropriately. Systems and methods which determine the physical orientation of a connector with respect to another connector may also be provided alone or in combination with such systems and methods for selecting communication interfaces. The physical orientation of a connector can be determined by measuring an electrical characteristic and a device can then configure itself appropriately. In accordance with the principles of the present invention, device designs can decrease in size and cost as well as simplify operation for the end-user.