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9041426 Default current test method of impulse voltage mixed high voltage direct current converter valve  
The present invention provides to a default current testing method of the high voltage direct current converter valve composited by impulse voltage. The technical scheme of the invention...
9041245 Power supply apparatus and method to control the same  
A power supply apparatus includes a converter to convert AC power into DC power, an SMPS to convert the DC power into DC powers desired by loads, a capacitor to interconnect the converter and the...
8989680 Determining a state of a receiver on a transmission line  
According to one aspect, a method is provided for determining a state of a receiver on a transmission line. The method may comprise, for example, evaluating a first voltage arising at a circuit...
8891216 Techniques for detecting removal of a connector  
A system that detects electrical disconnection of one connector from another connector includes a detection circuitry and a protection circuitry. The detection circuitry detects that a plug...
8853544 Method of transferring thin film components and circuit board having the same  
Various aspects of the present invention provide a transfer method for peeling off an MIM structure (comprising lower electrode/dielectric layer/upper electrodes) film formed on a supporting...
8804973 Signal clustering apparatus  
In an example signal clustering apparatus, a feature of a signal is divided into segments. A first feature vector of each segment is calculated, the first feature vector having has a plurality of...
8729739 Bi-directional circuit breaker  
A circuit breaker comprising first and second JFETs, each comprising a gate, drain and source connection, the JFETs sources being operatively connected to each other to form a common-source...
8724273 Transient blocking unit with strong reset capability  
Transient blocking unit reset capability is improved by adding one or more transistors in parallel to one of the main blocking transistors of the circuit. These additional transistors switch off...
8711587 Power converter with a variable reference voltage and inrush current limiting  
[Problem] To provide a power converter capable of suppressing voltage dropping of the smoothing capacitor and suppressing a rush current at the time of power recovery, [Means for Resolution] When...
8674631 Power conversion apparatus and method of controlling capacitor voltage of power conversion apparatus  
A power conversion apparatus includes: a line breaker that is connected in series to a direct-current power supply; a first capacitor that is connected in parallel to the direct-current power...
8643989 Active current surge limiters with inrush current anticipation  
Active current surge limiters and methods of use are disclosed. One exemplary system, among others, comprises a current limiter, including an interface configured to be connected between a power...
8630078 Active AC inrush current control  
Active inrush current control includes activating a load, the activating causing inrush current to flow, switching a semiconductor switching device to a current limiting state in response to the...
8600463 Conductor arrangement for a resistive switching element having at least two composite conductors made from superconducting conductor bands  
A conductor arrangement for a resistive switching element, has at least first and second conductor connections disposed in a mutual plane adjacent to each other and insulated against each other....
8587913 Active current surge limiters with voltage detector and relay  
Active current surge limiters and methods of use are disclosed. One exemplary system, among others, comprises a current limiter, including an interface configured to be connected between a power...
8582262 Active current surge limiters with disturbance sensor and multistage current limiting  
Active current surge limiters and methods of use are disclosed. One exemplary system, among others, comprises a current limiter, including an interface configured to be connected between a power...
8569836 Semiconductor device  
A semiconductor device includes an output port that has a first lateral double diffused metal oxide semiconductor (LDMOS) device and an electrostatic discharge protection device that has a second...
8532725 Parallel connected HTS utility device and method of using same  
A method of controlling fault currents within a utility power grid is provided. The method may include coupling a superconducting electrical path between a first and a second node within the...
8526149 Limiting current circuit that has output short circuit protection  
A limiting current circuit that has output short circuit protection is connected to an external voltage source and comprises an output terminal, an input current unit, a driving transistor, a...
8508960 Voltage detector and protection apparatus using the same  
A voltage detector includes a zener diode having a cathode connected to a detect terminal of the voltage detector, a junction field effect transistor having an input terminal connected to an anode...
8508895 Short circuit protection for sensor  
This disclosure is directed to techniques for protecting a sensor from a short to a power supply. According to one example consistent with these techniques, a circuit or device may include a...
8488285 Active current surge limiters with watchdog circuit  
Active current surge limiters and methods of use are disclosed. One exemplary system, among others, comprises a current limiter, including an interface configured to be connected between a power...
8477042 Apparatus for signaling different notification appliance circuit configurations  
An arrangement for use in a safety notification system includes first, second, third and four outputs configurable for first and second wiring configurations of notification appliance circuits....
8446285 Methods and apparatus for controlling and testing a notification appliance circuit  
An arrangement for use in a safety notification system includes a source of negative voltage, a first resistor arrangement, and a circuit arrangement. The first resistor arrangement is coupled...
8427800 Smart link coupled to power line  
A smart link in a power delivery system includes an insulator, which electrically isolates a power line, and a switchable conductance placed in parallel with the insulator. The switchable...
8412495 Fitting procedure for hearing devices and corresponding hearing device  
The method for adjusting a hearing device (11) to the hearing preferences of a user of the hearing device comprises a) adjusting at least one of N parameters (P1, P2), preferably with 2≦N≦4;b)...
8390970 Method and system for electrostatic discharge protection  
A method and a system for ESD protection are provided. In one embodiment, the system comprises a circuit comprising at least one non-linear element, an application module configured to apply a set...
8379361 Power supply system and method  
A power supply system S comprising a power processor 1, having a power input 2 and an AC power output 3 with a nominal voltage VN and a nominal current IN, and a power supply safety circuit 6...
8373571 Methods and apparatus for controlling a notification appliance circuit  
An arrangement for use in a safety notification system includes an alarm signal power source, a first semiconductor device, a current sensing unit, and a controller unit. The alarm signal power...
8374361 Method and an apparatus for processing an audio signal  
An apparatus for controlling a volume of an audio signal and method thereof are disclosed, by which a volume of an input signal can be controlled by using a non-linear gain curve and a target...
8345396 Electrostatic discharge protectors having increased RC delays  
An RC delay circuit for providing electrostatic discharge (ESD) protection is described. The circuit employs an NMOS transistor and a PMOS transistor to produce a large effective resistance using...
8314697 Electric system and alarm device thereof  
An alarm device includes a first detecting unit and a controlling unit. The first detecting unit has an isolating circuit, a first enabling circuit, a second enabling circuit and an output...
8289717 Protective telecommunications enclosure systems and methods  
Protective containers for electronic equipment, and methods of testing and manufacture thereof, are provided. The cabinets provide a HEMP protection level to electronic equipment housed therein...
8289667 Current limiting surge protection device  
A current-limiting surge protection device is provided. The current-limiting surge protection device includes a pair of series connected normally on MOSFET's and a pair of voltage controlled...
8283808 Switch arrangement and method for electrical switching  
A switch arrangement comprises a first and a second terminal (1, 2), a first switch (3), a current sensor (10), a first and a second control circuitry (20, 30). The first switch (3) comprises a...
8264805 Dual voltage hot swap module power control  
A module hot swap circuit includes a low voltage-drop rectifier adapted to receive either positive or negative voltages of different absolute values. The rectifier is coupled to a power manager...
8253525 Smart link coupled to power line  
A smart link in a power delivery system includes an insulator, which electrically isolates a power line, and a switchable conductance placed in parallel with the insulator. The switchable...
8233253 Controlling appratus and controlling method for signal outputing circuit and video system  
The invention discloses a controlling apparatus for a signal outputting circuit in an electronic system. The controlling apparatus includes a detecting circuit, a switch, and a controlling...
8223467 Transient blocking unit using normally-off device to detect current trip threshold  
An isolation device having normally off detection is provided. The isolation device having normally off detection includes a transient blocking unit (TBU) having at least one depletion mode device...
8218282 Portable electronic device and method for using the same  
A portable electronic device includes an audio file playing unit and a surge protector device connected to the audio file playing unit. The surge protector device includes a protector module...
8213143 Circuit arrangement for the protection of electronic components or assemblies  
A circuit arrangement for protecting an electronic device from damage upon a fault. The circuit arrangement includes at least one first terminal, at least one second terminal, a first interface...
8169763 Transient blocking unit having an enhancement mode device in the primary current path  
A transient blocking unit (TBU) is a circuit having series-connected transistors that normally conduct current, but automatically switch to a high-impedance current blocking state in response to...
8169756 Fault current limiting  
An alternating current system 10 has a primary circuit 11 which forms a primary winding 18 on a core 16. A secondary winding 24 is connected with a current source 26 or, alternatively, with an...
8154830 Apparatus for quench protection and stabilizing decay in a quasi-persistent superconducting magnet  
A superconducting magnet assembly comprises a superconducting magnet which, under working conditions, generates a magnetic field in a working volume. The superconducting magnet is connected in...
8139329 Over-voltage protection circuit  
An over-voltage protection circuit for use in low power integrated circuits is provided. The over-voltage protection circuit distributes certain connection and conditioning circuitry to a...
8133765 Integrated RF ESD protection for high frequency circuits  
The invention relates to a high-frequency integrated circuit requiring ESD protection for a circuit node. One or more metallic layer is deposited within the integrated circuit and patterned to...
8125194 Laptop computer storage and battery charging systems and methods including transient current inrush limiter  
A control system of a laptop computer storage system comprises a plurality of receptacles for charging one or more laptop computer batteries. A first switch may be provided for coupling the...
8112044 Transceiver system and method of using same  
A transceiver is provided for wireless communication. The transceiver can include a bias source, a transformer including a primary side and a secondary side, and a switching device. During a...
8050878 Method and system for estimation of source impedence on electrical distribution lines  
A device and method for dynamically determining an impedance of a network is disclosed. The device includes at least a processing system for measuring a network voltage and network current when...
8035938 Active current surge limiters  
Active current surge limiters (100) and methods of use are disclosed. One exemplary system, among others, comprises a current limiter (140), including an interface configured to be connected...
RE42785 Semiconductor module with serial bus connection to multiple dies  
A semiconductor module is provided which includes a beat heat spreader, at least two semiconductors thermally coupled to the heat spreader, and a plurality of electrically conductive leads...