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| Number | Title | Issue Date |
| 8072727 | Fault testing fault protection device and method A fault protection device tests a distribution for persistence of a fault using a selectable first fault testing procedure and a second fault testing procedure. ... | 12/06/2011 |
| 8031455 | System and method for circuit overcurrent protection In one aspect, the invention provides a system for protecting a plurality of circuits including a plurality of circuit protective devices wherein each circuit protective device includes a respective nominal current rating. According to one embodiment, the system inc... | 10/04/2011 |
| 7965485 | Circuit protection device for photovoltaic systems A circuit protection device for protecting a photovoltaic (PV) system from an overcurrent condition. The circuit protection device includes a first electrode electrically connectable to a first line of an electrical circuit, a second electrode electrically connectab... | 06/21/2011 |
| 7929267 | System comprising an automotive fuse and an A/D converter The invention relates to a system which comprises an automotive fuse and an A/D converter. Conventional systems comprising an automotive fuse and an A/D converter are designed such that a measured value is generated at the automotive fuse, which value is then amplif... | 04/19/2011 |
| 7872843 | Telecom power distribution unit with integrated filtering and telecom shelf cooling mechanisms The present invention provides highly efficient system level EMI filtering in a dual feed Power Distribution Unit (PDU) using custom designed magnetic components that are uniquely designed to provide excellent performance under various load conditions. The PDU of th... | 01/18/2011 |
| 7864510 | Clothes dryer with wiring safeguard A clothes dryer cabinet has a rear wall with a wire entry opening through which wiring enters into the dryer cabinet. A fuse supporting block is mounted closely adjacent to the wire entry opening and supports fuses which are connected directly to the wiring entering... | 01/04/2011 |
| 7773360 | Fuse saving power distribution system and fault protection Fault protection is provided with fuse saving in a power distribution system. An operating characteristic of a fault protection device protecting a portion of the power distribution system is configured in view of fuse melting characteristics. In this manner, fault ... | 08/10/2010 |
| 7738229 | Microprocessor-controlled multifunctioning light with intrinsically safe energy limiting A method is provided for reducing the power rating of a current limiting resistor (R) in a branch circuit having at least one protected element and the current limiting resistor connected between first and second nodes. The method includes the steps of: determining ... | 06/15/2010 |
| 7701687 | Surge protection circuit A surge protection circuit includes a first surge absorber and a first conducting wire. The first surge absorber has an end electrically connected to a first power signal line. The first conducting wire is covered with insulating material and electrically connected ... | 04/20/2010 |
| 7573690 | Backup fuse device, electronic apparatus including the backup fuse device, and method of operating the backup fuse device A backup fuse device includes a switching unit electrically conducted to perform electrical signal transfer when it is determined that electrical signal transfer through a main fuse is failed, and a backup fuse opening to block the electrical signal transfer when th... | 08/11/2009 |
| 7542260 | Motherboard A motherboard includes a printed circuit board (10), and at least a power/ground trace (20) formed on the printed circuit board. The trace includes a pair of main lines (14, 24) and at least a protection line (12, 22) connected between th... | 06/02/2009 |
| 7532449 | Analog semiconductor integrated circuit and method of adjusting same An analog semiconductor integrated circuit has an analog circuit, a PMOS and a bias adjustment circuit. The gate of the PMOS is the output section of an open drain system, and is connected to an internal node on the output side of the analog circuit. The bias adjust... | 05/12/2009 |
| 7529072 | Protection apparatus A protection apparatus is provided that can use a thermal fuse at higher voltage and higher current. The protection apparatus includes a protection circuit connected in series between a power supply and a load. The protection circuit includes a thermal fuse with a p... | 05/05/2009 |
| 7486494 | SCR with a fuse that prevents latchup A chip which utilizes a silicon controlled rectifier (SCR) for ESD protection prevents a latchup condition from occurring when the SCR misfires and turns on during normal operation by utilizing a fuse in series with the SCR. The fuse allows the SCR to perform normal... | 02/03/2009 |
| 7436643 | Protection circuit A protection circuit (P) for protecting a load (L) against overcurrents, and including input terminals (IN1,IN2) coupled to first and second power supply terminals of a power supply, output terminals (OUT1, OUT2) coupled to respective ter... | 10/14/2008 |
| 7428133 | Protection device of a surge protector The present invention relates to an protection device of a surge protector, which comprises: a first fuse; a resistor; a switching circuit; a second fuse; and a surge protector; thereby the switching circuit can be turned ON and make the resistor be heated when the ... | 09/23/2008 |
| 7394637 | Sense amplifier with leakage compensation for electrical fuses A sense amplifier for detecting a logic state of a selected electrical fuse cell among a number of unselected electrical fuse cells includes a bias module coupled to a power supply for generating a first current, and a tracking module coupled to the bias module for ... | 07/01/2008 |
| 7385796 | Fire safety fusible link electrical terminal block An electrical terminal block has a heat-meltable fusible link establishing a closed electrical circuit between a conductor and an actuator responsive to a control signal transmitted by conductor for controlling the state of an emergency process control device, such ... | 06/10/2008 |
| 7378933 | Dual fuse holder A fuse holder having at least two separate electrical paths may include a first hollow support containing a first fuse and a second hollow support containing a second fuse. The first hollow support may have first electrical connection devices, and the second hollow ... | 05/27/2008 |
| 7369387 | Apparatus and method for temperature-dependent transient blocking An apparatus and method for temperature-dependent transient blocking employing a transient blocking unit (TBU) that uses at least one depletion mode n-channel device interconnected with at least one depletion mode p-channel device. The interconnection is performed s... | 05/06/2008 |
| 7359173 | System and method for protecting IC components One embodiment provides a system for protecting at least one component in an integrated circuit (IC). The system includes a disconnect element that is electrically connected in series between a terminal of the IC and the at least one component. The disconnect elemen... | 04/15/2008 |
| 7355502 | Direct relay connection to a fusible link An assembly provides a direct electrical connection between a relay and a fusible link on the surface of a vehicle junction block. A fuse housing for the fusible link has a first, female terminal located near a top portion of the fuse housing. The first terminal is ... | 04/08/2008 |
| 7348872 | Fuse having a plurality of configurable thermal ceilings A fuse having a plurality of configurable thermal ceilings. The fuse includes a housing, a first conductive cap, a second conductive cap, a plurality of conductive elements extending through the housing, and a conductive connector that is electrically coupled to a c... | 03/25/2008 |
| 7342321 | Bicycle electric power unit A bicycle electric power unit supplies electric power to a bicycle motor unit having a power source, a power source controller, a power source voltage detector, a first power source switch and a second power source switch. The power source controller turns off the f... | 03/11/2008 |
| 7336465 | Protection device of a surge protector The present invention relates to an protection device of a surge protector, which comprises: a first fuse; a resistor; a switching circuit; a second fuse; and a surge protector; thereby the switching circuit can be turned ON and make the resistor be heated when the ... | 02/26/2008 |
| 7334780 | Device and method for manufacturing carbonated spring and carbonic water, control method for gas density applied thereto and membrane module Hot water (12) in a bath (11) is pumped up by a suction pump (9) and introduced into a carbon dioxide gas dissolver (7) through solution flow rate adjusting means (14) and then, poured into the bath (11). Carbon dioxide gas ... | 02/26/2008 |
| 7333315 | Secondary battery devices A secondary battery device 1 including multiple protective circuits U1-U3 connected in parallel and each having two fuses fa, fb connected in series, wherein a terminal tc of each heater h is connected to... | 02/19/2008 |
| 7301432 | Fusing terminal device A fusible link device comprising a housing that contains terminals for terminating incoming/outgoing wires, and that also contains a fusible link that interconnects a pair of the terminals in series, the fusible link device providing a self-contained unit/module for... | 11/27/2007 |
| 7301431 | Electroceramic component An electric component includes a first base body that connects to a first contact, and an ally conducting element positioned along a current path between the first contact and a second contact. The electrically conducting element melts when an operating voltage of t... | 11/27/2007 |
| 7288748 | PTC electrical heating devices PTC electrical heating devices are disclosed which are suitable to vaporize air treatment chemicals from an impregnated slab, such as insect repellents. In one form an electrical contact to a PTC heater element is provided with a bowl-shaped contact head to reduce t... | 10/30/2007 |
| 7285748 | Flexible heater device The heating device includes a conductive layer which is positioned on an electrically insulative substrate. Preferably, the conductive layer is screen printed onto the substrate. The substrate is designed to limit elongation of the conductive layer, thereby improvin... | 10/23/2007 |
| 7277289 | Resistor for controlling a fan motor rotating speed for use in an air conditioner Provided is a resistor for controlling a fan motor rotating speed for use in an air conditioner. The resistor comprises a base body, a radiator attached to a top portion of the base body, a printed resistor circuit board covered with insulating sheets and received w... | 10/02/2007 |
| 7273377 | Breadboard to stackable plug convertor A housing used to combine a standard electronic prototype system and a modular block system with stackable connectors to achieve a design system that allows for safe assembly of circuits of a more complex nature than can be achieved by either system alone. ... | 09/25/2007 |
| 7274547 | Electrical power supply system and a permanent magnet generator for such a system An electrical power supply system including an engine driven permanent magnet generator (11) operable to produce a variable voltage and high frequency output which is converted by a series train AC/AC conversion circuit (14) into a fixed voltage and re... | 09/25/2007 |
| 7271504 | Power-on reset semiconductor and method of controlling power supply voltage A semiconductor integrated circuit includes a first logic circuit to which a first power supply voltage is applied and which outputs a first signal, a first level conversion circuit to which the first power supply voltage and a second power supply voltage having an ... | 09/18/2007 |
| 7262581 | Power supply A rechargeable power supply including voltage protection means through voltage dependent disconnecting means. A rechargeable power supply comprises at least one rechargeable cell connectable to a power source, a Zener diode connected to the at least one cell, and a ... | 08/28/2007 |
| 7256978 | Gapped ground safety device A gapped ground safety device is provided to protect workers on de-energized underground distribution cable from ground faults or accidental energization. The device comprises a combination precision gap and an MOV surge arrester. ... | 08/14/2007 |
| 7253637 | Arc fault circuit interrupter system In order to determine whether arcing is present in an electrical circuit, a sensor signal corresponding to current in said electrical circuit is processed. The sensor signal is filtered to determine the presence of noise in a predetermined frequency range and produc... | 08/07/2007 |
| 7253665 | Semiconductor device and driving method thereof The invention provides a semiconductor device which performs a write operation of a signal current rapidly to a current input type pixel. Before inputting a signal current, a precharge operation is performed by flowing a large current. After that, a signal current i... | 08/07/2007 |
| 7254005 | AC plug and electrical apparatus provided with same An AC plug provided with a plug casing and prongs formed sticking out from the inside of the plug casing to the outside and supplying AC power supplied from a power outlet to the prongs by an AC cord connected to the prongs inside the plug when the prongs are insert... | 08/07/2007 |
