Matches 1 - 50 out of 183 1 2 3 4 >


Match Document Document Title
US20130215545 ELECTRIC SWITCH  
An electric switch is disclosed, in particular an electric circuit breaker. In at least one embodiment, the switch includes a measuring channel for measuring an electric measured variable and is...
US20110279939 ELECTRICAL CIRCUIT WITH REDUNDANT TRUNK  
An electrical circuit comprising a power supply, a load, first and second trunks disposed therebetween and control means adapted to control the electrical status of the first and second trunks, in...
US20130033790 HEAT GENERATION AMOUNT ESTIMATION UNIT FOR BATTERY FOR ELECTRIC POWER TOOL, AND APPARATUS FOR ELECTRIC POWER TOOL  
A disclosed heat generation amount estimation unit is used for a battery for an electric power tool, and estimates a heat generation amount of the battery that is a power source of the electric...
US20130033789 ADAPTIVE POWER MANAGEMENT SYSTEM FOR AIRCRAFT GALLEYS  
The adaptive power management system for aircraft galleys includes one or more programmable circuit breakers for corresponding interchangeable aircraft galley inserts. Current rating settings of...
US20150207309 DISTRIBUTION BOARD, POWER CONSUMPTION MANAGING SYSTEM, AND METHODS FOR MANUFACTURING DISTRIBUTION BOARD AND POWER CONSUMPTION MANAGING SYSTEM  
A distribution board includes: a main bar that is connected to a power supply line; a branch bar that is branched from the main bar, the branch bar supplying power to a load; a breaker that is...
US20110242717 POWER TOOL  
A power tool 1 is connected to a battery pack 5 including an overcurrent detector 533 which detects overcurrent of a battery module 51 and outputs a detection signal, and an overdischarge detector...
US20130241498 LITHIUM STARTER BATTERY AND SOLID STATE SWITCH THEREFOR  
Apparatus for increasing the efficiency of a starter battery for a starter motor of an internal combustion engine in a battery pack arrangement with one or more lithium based cells. The invention...
US20150055260 Fast Switch Fault Current Limiter  
A fault current limiter circuit including a fast switch fault current limiter (FSFCL) and a voltage control reactor (VCR) operative to conduct load current during a steady state operation and...
US20130057995 Temperature Evaluation Circuit  
An electronic circuit includes a temperature evaluation circuit. The temperature evaluation circuit includes a first sensor circuit with a first output terminal that is configured to sense a first...
US20120320479 PORTABLE DRILLING MACHINE  
Problem Disclosed is a portable drilling machine wherein when a shorting failure occurs in a circuit part connected to a driving motor, this state is reliably detected and a false start of the...
US20120212871 OVERCURRENT DETECTING CIRCUIT AND BATTERY PACK  
An overcurrent detecting circuit includes: a voltage detecting unit that detects a terminal voltage of a battery; a variation detecting unit that detects a variation in the terminal voltage within...
US20130114176 PROTECTION DEVICE TO BE ASSOCIATED IN AN ELECTRICAL CIRCUIT WITH A CURRENT-BREAKER DEVICE OF INCREASED SERVICE LIFE  
A protection device is to be associated in an electrical circuit (3) with a current-breaker device (20) including at least one pair (2) of contacts. The protection device includes a measuring...
US20110149454 BATTERY SYSTEM  
Provided is a battery system capable of preventing the voltage that is applied to the voltage detection circuit from exceeding the withstand voltage of the voltage detection circuit when the...
US20120223644 LED DRIVING CIRCUIT AND SHORT-CIRCUIT PROTECTION CIRCUIT  
An LED driving circuit, adapted to drive an LED module, is disclosed. The LED driving circuit comprises a converting circuit, a converting controller, and a short-circuit protection circuit. The...
US20150009599 GATE DRIVING CIRCUIT AND ARRAY SUBSTRATE  
Disclosed are a gate driving circuit and an array substrate relating to the field of display technique and capable of ensuring that, when there is a malfunction such as a short-circuit and the...
US20140022680 CURRENT LIMITATION SYSTEM FOR LIMITING THE EFFECTS OF A FAULT IN A DC GRID AND A METHOD OF OPERATING A CURRENT LIMITATION SYSTEM  
A current-limitation system for limiting a current through an DC connection in case of a fault occurring in a DC grid of which the DC connection forms a part is provided, as well as a method of...
US20140362486 LOW FAULT CURRENT ISOLATOR SYSTEM  
A low fault current isolation arrangement senses a loss of voltage and automatically isolates and de-energizes a down live primary wire if overcurrent protection devices have not cleared the high...
US20130003240 Composition of a desired trip curve  
A method and apparatus for composing a desirable trip curve, such as an I2*t trip curve, for an electrical protective device from at least one less desirable trip curve, such as an I*t trip curve....
US20140078632 BATTERY PACK, CONTROLLING METHOD OF THE SAME, AND ENERGY STORAGE SYSTEM INCLUDING THE BATTERY PACK  
A battery protection apparatus is disclosed. In one aspect, the apparatus includes a temperature-dependent resistor electrically connected to at least one battery cell, wherein the...
US20150009597 ELECTRONIC FUSE CIRCUIT AND METHOD OF CONTROLLING THE SAME  
An electronic fuse circuit for interrupting a current flowing through a power circuit includes: a trip switch structured to open and close to interrupt and permit, respectively, the current...
US20080012668 Redundant trip activation  
A redundant trip activation scheme whereby at least one pre-trip condition must be satisfied before a trip signal is sent to a trip solenoid of a motor circuit protector. To provide a layer of...
US20150244164 OVERCURRENT DETECTION CIRCUIT AND METHOD, LOAD SWITCH, AND PORTABLE DEVICE  
The present invention provides an overcurrent detection circuit, an overcurrent detection method, a load circuit, and a portable device. The overcurrent detection circuit comprises: a first...
US20110075309 OVERCURRENT PROTECTION APPARATUS FOR LOAD CIRCUIT  
To provide an overcurrent protection apparatus for a load circuit which can detect an overcurrent accurately without being influenced by the offset voltage Voff of an amplifier (AMP1). When the...
US20150043115 SOLID STATE RELAY PROTECTIVE DEVICE  
An electrical circuit for protection of a solid-state relay includes a switch element connected between an input signal source and an input terminal of the solid-state relay. The solid-state relay...
US20140368959 OVER-CURRENT REGULATING SYSTEM  
An over-current regulating system includes a protecting resistor, an amplifying circuit, and a comparing circuit. The protecting resistor is configured to be electrically coupled to a power supply...
US20130249696 LOAD CIRCUIT DISCONNECTION DETECTOR  
A load circuit disconnection detector includes: a current sensor (16) for detecting current flowing through a wire (W1) of a load circuit; and a protective device (100) for estimating temperature...
US20080151454 Electronic Battery Safety Switch  
The invention relates to an electronic battery safety switch which facilitates a reliable and reversible disconnection of the motor vehicle on-board network from the battery. For this purpose an...
US20130027817 MICRO ELECTRO-MECHANICAL SWITCH (MEMS) BASED OVER CURRENT MOTOR PROTECTION SYSTEM  
An over current protection system includes a current sensing member configured and disposed to output an electrical rate of change signal that is indicative of a rate of change of an electrical...
US20130093326 DEVICE AND METHOD FOR DETECTING A SHORT-CIRCUIT DURING A START-UP ROUTINE  
A device and method for detecting a short circuit in an electrical component during a start-up routine. In an embodiment, a device may have a problematic display having a short circuit that may...
US20150131188 CURRENT SENSING CIRCUIT  
A current sensing circuit comprises a first input terminal and a second input terminal for introducing a subject current from a device coupled between the first and second input terminals; a first...
US20120320478 OVERCURRENT LIMITING FOR HIGH SIDE SOLENOID SWITCH CONTROLS  
An overcurrent protection circuit for a high side solenoid switch includes a primary bias circuit and a secondary bias circuit. The secondary bias circuit is operable to alter a source to gate...
US20140108851 Online Protection Coordination for Distribution Management System  
A method for automatic protection coordination in a power system network comprises identifying radial source-to-load paths and fault protection devices in the source-to-load paths, for a portion...
US20140347774 OVERCURRENT PROTECTION CIRCUIT, AND ELECTRONIC CONTROL UNIT  
An overcurrent protection circuit that protects a load from an overcurrent includes: a load current cutoff condition defining unit configured to set two or more load current cutoff conditions in...
US20120162841 PROTECTION CIRCUIT AND PROTECTION METHOD THEREOF  
The present invention provides a protection circuit. The protection circuit includes an output stage circuit and a feedback unit that generates a first current. Under a first condition that the...
US20130250463 PROTECTIVE DEVICE FOR LOAD CIRCUIT  
A load circuit protective device calculates increasing temperature of wire of a load circuit with a first predetermined sampling period (dt1) determined by a clock signal for normal operation when...
US20140139961 DEVICE FOR PROVIDING PROTECTION AGAINST ELECTRICAL SHOCK HAZARDS INVOLVING TWO CIRCUIT CONDUCTORS  
Disclosed herein is a device that protects against electrical shock hazards involving two circuit conductors. The device continuously evaluates the load characteristics of electrical equipment and...
US20110019321 LEAKAGE SENSOR AND SWITCH DEVICE FOR DEEP-TRENCH CAPACITOR ARRAY  
A high-density deep trench capacitor array with a plurality of leakage sensors and switch devices. Each capacitor array further comprises a plurality of sub-arrays, wherein the leakage in each...
US20140226240 OVERLOAD PREVENTION SYSTEM TO IMPROVE INTERMITTENT LOAD CAPACITY OF ELECTRIC DRIVE APPLICATIONS  
An overload prevention system and method for an electric circuit having a plurality of components is disclosed, where each component has a set of pre-computed parameters. For each component,...
US20150016002 POWER BATTERY ASSEMBLY AND ELECTRIC VEHICLE COMPRISING THE SAME  
A power battery assembly may include a battery circuit and a circuit protecting unit. The circuit protecting unit may be connected in series with the battery circuit. The circuit protecting unit...
US20130314831 METHOD FOR PROTECTING AN ELECTRICAL ENERGY DISTRIBUTION BOX  
A method for protecting an electrical energy distribution box (BODP) equipped with a supply current distribution bar (BDP) intended to be connected between an electrical energy source (G) and...
US20130120889 Proximity detection circuit having short protection  
A proximity detection circuit is contemplated to detect connection of a cordset to a vehicle charging system or connection of another device to some other electrical circuit where it may be...
US20120039007 METHOD FOR PROVIDING OVER CURRENT PROTECTION AND CIRCUIT  
A method and circuit for protecting against an over current condition. A conduction time of one or more transistors is reduced during the over current condition. The conduction time is reduced in...
US20140009857 POWER SUPPLY DEVICE  
A power supply device comprising: a plurality of battery units each having a protective unit, an output voltage from the plurality of battery units being configured to energize an electric power...
US20100254055 OVERCURRENT PROTECTION IN A DIMMER CIRCUIT  
Disclosed is an overcurrent protection circuit for use in a dimmer circuit having a switching device for controlling power delivered to a load. The overcurrent protection circuit comprises means...
US20150029628 Low Current Protection Circuit  
A low current protection circuit is configured to detect a lowering of a load current flowing a load to perform a low current protection operation and includes: a load current detection configured...
US20080266737 Biometric reader protection system and method  
A biometric reader protection system comprises a power controller configured to determine an amount of current flow to a biometric reader and interrupt the current flow to the biometric reader if...
US20100254056 EFFICIENT METHOD FOR CALCULATING THE DOT PRODUCT IN FAULT DETECTION ALGORITHMS  
A method of electrical fault determination using the phase angle information of all the currents entering and leaving a protection zone, to determine whether a fault, if any, is internal or...
US20120106013 CURRENT SENSE CIRCUIT AND BATTERY OVER-CURRENT PROTECTION CONTROLLER  
A battery over-current protection controller includes a current sense circuit, a first pin coupled to one end of the current detection circuit, a second pin, and a third pin. The second pin and...
US20140104738 COORDINATED HIGH-IMPEDANCE FAULT DETECTION SYSTEMS AND METHODS  
Systems and methods are presented for detecting high-impedance faults (HIFs) in an electric power delivery system using a plurality of coordinated high-impedance fault detection systems. In...
US20130265684 SWITCHING CIRCUIT  
A switching circuit 1 comprises a transistor 11; a detection resistance 12, connected to the transistor 11, for receiving a current flowing through the transistor 11; an overcurrent detection...

Matches 1 - 50 out of 183 1 2 3 4 >