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| Number | Title | Issue Date |
| 8179653 | Multiple operating voltage electrical surge protection apparatus A component of an electrical system capable of operation at any of two or more different nominal normal operating voltages is protected from a transient overvoltage condition by an apparatus having at least one phase-to-ground array of surge protection devices (SPDs... | 05/15/2012 |
| 8179654 | Surge preventing circuit, local area network connector, and network module A surge preventing circuit of a local area network (LAN) connector is suitable for being coupled to a plurality of transformers disposed in the local area network connector. The surge preventing circuit includes a conjugate coil module and a surge absorbing element.... | 05/15/2012 |
| 8159805 | Quick response mechanism and method for a switching power system A quick response mechanism for a switching power system includes a detector and an adjustor connected to the detector. The detector is configured to directly monitor the drop of the output voltage of the switching power system so that a quick response could be immed... | 04/17/2012 |
| 8144444 | EMC protection circuit A protection circuit for protecting an electronic circuit against EMC disturbances and/or negative transient overvoltage pulses comprises a switch in series between a power supply and the electronic circuit to be protected; a comparator for comparing a first operati... | 03/27/2012 |
| 8120887 | MOS transistor triggered transient voltage suppressor to provide circuit protection at a lower voltage An electronic device formed as an integrated circuit (IC) wherein the electronic device further includes a transient voltage suppressing (TVS) circuit. The TVS circuit includes a triggering MOS transistor connected between an emitter and a collector of a first bipol... | 02/21/2012 |
| 8111496 | Earthing arrangement for a DC electrical system and a method of operating an earthing arrangement for a DC electrical system An earthing arrangement for a DC electrical system (10), the electrical system (10) comprises a plurality of earthing points (24A, 24B, 24C) and each earthing point (24A, 24B, 24C) is directly and permanently c... | 02/07/2012 |
| 8111495 | Low forward voltage drop transient voltage suppressor and method of fabricating A low forward voltage drop transient voltage suppressor utilizes a low-reverse-voltage-rated PN diode electrically connected in parallel to a high-reverse-voltage-rated Schottky rectifier in a single integrated circuit device. The transient voltage suppressor is ide... | 02/07/2012 |
| 8098471 | Integrated circuit arrangement and circuit array One aspect is an integrated circuit arrangement. The arrangement includes a first terminal, which can be brought to a first supply potential, a second terminal, which can be brought to a second supply potential, and a supply potential path formed between the first t... | 01/17/2012 |
| 8089744 | Apparatus and methods for electrostatic discharge circuitry with snap-back device An integrated circuit (IC) includes a multiple-finger transistor structure. The multiple-finger transistor structure includes one transistor configured as a ballasted device. The multiple-finger transistor structure further includes a second transistor configured as... | 01/03/2012 |
| 8068324 | Circuit and method for protecting energy-storage device A protection circuit including an energy-storage device, a fusible element, and an overvoltage modulation unit is provided. The energy-storage device stores a first energy and supplies the first energy. The fusible element connected in series with the energy-storage... | 11/29/2011 |
| 8014118 | Load driving circuit, driver IC having a load driving circuit, and plasma display panel having a driver IC A load driving circuit in which a load is connected to the connecting point of transistors as low-side and high-side main switch elements that have a totem pole structure and are connected between a pair of drive voltage supply lines. A protection circuit section is... | 09/06/2011 |
| 8014117 | Low forward voltage drop transient voltage suppressor and method of fabricating A low forward voltage drop transient voltage suppressor utilizes a low-reverse-voltage-rated PN diode electrically connected in parallel to a high-reverse-voltage-rated Schottky rectifier in a single integrated circuit device. The transient voltage suppressor is ide... | 09/06/2011 |
| 8004810 | Meter having load control unit A load control unit is provided for a meter which can be connected to a meter communication network. The load control unit includes a dual coil solenoid switch that is operable to connect the meter to a load, and disconnect the meter from the load. An electronic swi... | 08/23/2011 |
| 8000076 | Interrupter, a method of responding to a monitored event and an integrated circuit including an interrupter An interrupter, a method of responding to a monitored event and an IC are disclosed. In one embodiment, the interrupter includes: (1) a monitoring circuit configured to monitor for an occurrence of at least one event and generate an external event signal when detect... | 08/16/2011 |
| 7978454 | ESD structure that protects against power-on and power-off ESD event An electrostatic discharge protection circuit (ESD protection circuit) provides ESD protection to all NMOS/PMOS transistors that are connected to the pins of a CMOS integrated circuit (IC). The ESD protection circuit will protect the CMOS IC against an ESD event, re... | 07/12/2011 |
| 7974061 | Common gate connected high voltage transient blocking unit When a series protective element such as a transient blocking unit (TBU) is used in combination with a shunt protective element such as a gas discharge tube (GDT), firing of the GDT can cause a transient having the potential to damage the TBU. This problem can be al... | 07/05/2011 |
| 7969704 | Snubber circuit A circuit comprising a first transistor group configured to electrically isolate, at least in part, a second transistor group from an input voltage; the second transistor group configured to provide voltage protection to a third transistor group; and the third trans... | 06/28/2011 |
| 7944668 | Connection apparatus with high voltage impulse protection Connection apparatuses are provided, in which at least one isolation transformer comprises a primary coil and a secondary coil each comprising a first end, a second end and a tap, and a high voltage impulse protector is disposed between the primary coil of the isola... | 05/17/2011 |
| 7933106 | Surge protection device for coaxial cable with diagnostic capabilities A surge protection circuit utilizing direct current (DC) voltage on the information carrying coaxial cable of a receiving device with a surge protection device to suppress transient signal fluctuations over the coaxial cable and a diagnostic surge protection status ... | 04/26/2011 |
| 7933107 | Electrostatic discharge protection circuit device An electrostatic discharge protection circuit device includes a discharge circuit, a trigger circuit and a trigger control circuit. The discharge circuit is connected to a predetermined circuit node of a semiconductor device, and makes discharge when surge voltage i... | 04/26/2011 |
| 7911756 | Low-voltage noise preventing circuit using abrupt metal-insulator transition device Provided are a low-voltage noise preventing circuit using an abrupt metal-insulator transition (MIT) device which can effectively remove a noise signal with a voltage less than a rated signal voltage. The abrupt MIT device is serially connected to the electrical and... | 03/22/2011 |
| 7907380 | High power integrating power conditioner A high-power transient suppressor, having an input from a power source and an output to a load, includes a first power device coupled between the input and the output, a first transient detector to monitor an input voltage and to turn off the first power device in r... | 03/15/2011 |
| 7894175 | Non-intrinsically safely supplied measurement device A non-intrinsically safely supplied measurement device (1) with a connecting device (3) having an “increased safety” type of protection for connecting the measurement device (1) to a feed connection (2) in order to supply the measurem... | 02/22/2011 |
| 7864498 | Power amplifier protection A circuit includes: an input of shunt circuitry to couple with an output of detection circuitry that provides a protection signal; an output of the shunt circuitry to couple with an input of power amplification circuitry; and the shunt circuitry configured to reduce... | 01/04/2011 |
| 7855866 | Network interface with transient protection apparatus for multiple ground planes A network interface apparatus is disclosed that includes a connector coupled to a plurality of communication lines. A Physical Layer (PHY) device coupled to the communication lines and to a first ground level. A transient event suppression module coupled between the... | 12/21/2010 |
| 7852610 | Flameproof apparatus using non-grounded energy-limiting barrier A device intended to meet flameproof approval requirements is configured to have two compartments separated by an energy-limiting barrier. The first compartment of the device houses the wiring terminations that bear ignition-capable energy and, therefore, must be fl... | 12/14/2010 |
| 7826192 | Method and apparatus for preventing damage to electronics during tire inspection Disclosed are apparatus and methodologies for protecting tire electronics from electrical discharge damage during a tire inspection procedure. Aspects of different embodiments of the disclosed subject matter relate to various techniques for providing protection from... | 11/02/2010 |
| 7826193 | String contact structure for high voltage ESD The present invention relates to an electrostatic discharge (ESD) protection scheme and particularly to a string contact structure for an improved ESD performance. In an embodiment, the invention provides a method for forming an ESD protection circuit for protecting... | 11/02/2010 |
| 7808763 | Adjustable speed drive protection A protection scheme to protect pulse width modulated drives is described. The scheme is implantable in both hardware and software and combinations thereof. The semiconductor devices of the drive are protected from transient signals such as power line spikes and loss... | 10/05/2010 |
| 7800880 | Earthing arrangement In a DC electrical power system used in an aircraft, an earthing arrangement is provided between electrical power supply rails in the form of a pair of capacitors with a mid electrical voltage earthing point, having an earthing path, in which electrical resistance i... | 09/21/2010 |
| 7778002 | Method and apparatus to reduce ring out in an ignition coil to allow for ion sense processing An ignition apparatus includes a transformer having a central core, a primary winding disposed thereabout, a secondary winding disposed outwardly of the primary winding, and an outer core or shield disposed outwardly of the secondary winding. The central and outer c... | 08/17/2010 |
| 7768761 | Surge protection device An electrical surge protection device (12) confers protection to an output node (13) from electrical surges on a data or power line (10) incident on an input node (11). A transistorized surge protection device (18) is located in a ... | 08/03/2010 |
| 7755875 | Semiconductor device, display device, and electronic apparatus To prevent an electrostatic damage on a display device formed with a driving circuit. Protective circuits are provided not only at input terminal parts, but also at intermediate parts of a circuit or at the ends of wiring lines. Otherwise, the protective circuits ar... | 07/13/2010 |
| 7719814 | Semiconductor device with surge protection circuit A semiconductor device includes a memory cell to and from which data is written and read in accordance with voltage supplied, a power supply circuit generating the voltage supplied to the memory cell, a microcomputer, an external terminal, a surge protection circuit... | 05/18/2010 |
| 7719813 | Gate-coupled substrate-triggered ESD protection circuit and integrated circuit therewith An ESD protection design using a gate-coupled substrate-triggered technique is provided. A required RC time constant maintained in the gate-coupled substrate-triggered ESD circuit is based on a parasitic MOS capacitor and larger resistor, in which a layout area for ... | 05/18/2010 |
| 7715165 | System and method of surge protection in a powered device A powered device includes a first supply terminal, a second supply terminal, and at least one input pin coupled to the first supply terminal. The powered device further includes an external capacitor having a first terminal coupled to the first supply terminal, a sw... | 05/11/2010 |
| 7697251 | Powered communications interface with DC current imbalance compensation A communications interface circuit includes data signal transformers for transmitting and receiving interface data signals. Each data signal transformer has a split interface-side winding that faces the cable connecting the interface with other equipment. Imbalance ... | 04/13/2010 |
| 7688564 | Pluggable surge protector A power distribution system (300) is disclosed having a power source (302) with at least one circuit associated with a power line (310). The power line (310) is connected to an incoming power cable (312), which is further connected... | 03/30/2010 |
| 7663855 | Circuit for preventing surge, connector and electronic apparatus thereof A surge protection circuit and a connector and an electronic apparatus using the circuit are provided. The connector includes a plurality of metal lines, a plurality of resistors, a ground metal, and a capacitor. Each metal line has a pointed end. There is a distanc... | 02/16/2010 |
| 7646576 | Apparatus and method for high-voltage transient blocking using low voltage elements An apparatus and method for high-voltage transient blocking employing a transient blocking unit (TBU) that has at least one depletion mode n-channel device interconnected with at least one depletion mode p-channel device such that a transient alters a bias voltage V... | 01/12/2010 |
