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US20140198421 Over Temperature Protection Circuit  
The present invention provides an over temperature protection circuit. The over temperature protection circuit includes a reference circuit and a hysteretic comparator. The reference circuit is...
US20140146429 UNDERVOLTAGE LOCKOUT CIRCUIT, SWITCH CONTROL CIRCUIT AND POWER SUPPLY DEVICE COMPRISING THE UNDERVOLTAGE LOCKOUT CIRCUIT  
Exemplary embodiments of the present invention relate to an under-voltage lockout circuit, and a switching control circuit and a power supply including the same. The under-voltage lockout circuit...
US20140313625 VOLTAGE PROTECTION CIRCUIT  
A voltage protection circuit includes a first power source, a power circuit, a comparator, and a electronic switch. The power circuit provides an output voltage to the comparator. The comparator...
US20140139960 OVERHEATING PROTECTION CIRCUIT  
There is provided an overheating protection circuit, including a temperature-variable voltage generating unit generating a temperature-variable voltage by adding a temperature-proportional voltage...
US20130163135 PROTECTIVE CIRCUIT FOR A RECHARGEABLE BATTERY PACK  
A protective circuit for an arrangement includes a multiplicity of individual cells in a rechargeable battery pack. A predefined number of individual cells are connected in series in a cell row...
US20130242445 Service Voltage Load Protection in an Electric Utility Meter  
An arrangement for controllably disconnecting a utility power service from a load includes a utility meter housing, a switch and a processing circuit. The utility meter housing includes metrology...
US20150229124 DYNAMIC CURRENT PULL-DOWN FOR VOLTAGE REGULATOR  
A circuit includes a comparator that monitors a transient with respect to a predetermined threshold at the output of a voltage regulator and generates a compensation signal if the transient...
US20120287542 Service Line Safety Monitor  
A service line safety monitor which may be configured as a separate module or incorporated into an EVSE is adapted to monitor the connection with the service line to determine whether there is a...
US20120236453 TRANSMITTER/RECEIVER CIRCUIT FOR PROTECTION CIRCUIT  
A transmitter/receiver circuit includes secondary batteries connected in series, a first protection circuit in a high voltage side of the secondary batteries and including a transmitter circuit...
US20120229944 SAFE DISCONNECT SWITCH  
A safe disconnect circuit is provided for mitigating the effect of harmful circuit conditions upon a load, such as an integrated power module (IPM). The safe disconnect circuit comprises a...
US20120026634 VOLTAGE DETECTION CIRCUIT DEVICE  
A voltage detection circuit device acquires a predetermined compare voltage through a voltage acquisition circuit by a power source of a power supply circuit. After a voltage step-down circuit...
US20120170165 ADAPTIVE OVERVOLTAGE PROTECTION CIRCUIT AND METHOD, AND POWER SYSTEM INCLUDING THE SAME  
An adaptive over-voltage protection circuit includes an over-voltage protection reference voltage provider and an over-voltage signal output unit. The over-voltage protection reference voltage...
US20130163134 BATTERY PROTECTION CIRCUIT  
A battery pack including a battery and a battery protection circuit is disclosed. In one aspect, the battery protection circuit comprises a protective device configured to inhibit a flow of...
US20140071570 POWER INTERCONNECT INTEGRITY DETECTION  
Embodiments include systems and methods for detecting and/or responding to deficiencies in power interconnect integrity. For example, a first module distributes power to a second module via a...
US20130128404 OVERVOLTAGE PROTECTION CIRCUIT  
A protection circuit that protects a load charged by a power supply. The protection circuit includes a reference voltage set circuit, a sampling circuit, a switch, and a comparator. The reference...
US20120300351 PROTECTIVE MONITORING CIRCUIT AND BATTERY PACK  
A protective monitoring circuit includes a protective circuit to detect at least one of overcharging, overdischarging, and overcurrent of a chargeable secondary battery to control whether to turn...
US20140362485 Transient Protection Filter Circuit that Minimizes the Effects of Thermal Runaway  
Commonly, a transient protection filter circuit is integrated between power sources and the circuits that follow to suppress voltage transients. Pre-existing transient protection filters are...
US20130063849 OVERVOLTAGE PROTECTION CIRCUIT AND PORTABLE ELECTRONIC DEVICE HAVING THE SAME  
An overvoltage protection circuit and a portable electronic device having the same are introduced. The overvoltage protection circuit provides overvoltage protection when an input voltage exceeds...
US20150092308 SCHEME TO REDUCE STRESS OF INPUT/ OUTPUT (IO) DRIVER  
An input/output (IO) circuit is provided that reduces stress on a driver without using an additional reference voltage. The IO circuit receives an overshoot voltage and an undershoot voltage in a...
US20130201587 METHOD AND APPARATUS FOR DETECTING A FAULT OF A BATTERY PACK AND A POWER RELAY ASSEMBLY  
There are disclosed a method and apparatus for detecting a fault of a battery pack and a power relay assembly. An apparatus for detecting a fault of a battery pack including a plurality of cells...
US20120206845 PASS GATE OFF ISOLATION  
This document discusses methods and apparatus for preventing or reducing sub-threshold pass gate leakage. In an example, an apparatus can include a pass gate configured to electrically couple a...
US20100302696 RELAY FAILURE DETECTING DEVICE  
A relay failure detecting device able to detect reliably a fault in a relay circuit that provides alternating current power to a load through a relay that is a double-pole switch. Individual...
US20130141828 POWER SOURCE APPARATUS FORMED BY COMBINING A PLURALITY OF MODULES  
The power source apparatus enables each battery pack to be charged with power supplied from an external charging power supply, and allows power stored in each battery pack to be output externally....
US20140285934 BATTERY PROTECTION CIRCUIT AND METHOD THEREOF  
The present disclosure discloses a battery protection circuit and a method thereof for protecting a battery pack. The battery protection circuit comprises a hardware protection circuit, a software...
US20130329327 Installation Comprising Two Batteries Joined in Parallel  
Installation (100; 100′) comprising two batteries joined in parallel with the aid of a first device (1; 1′) for protection of a voltage source (10; 20), comprising: a parallel assembly comprising...
US20140002006 BATTERY PROTECTION CIRCUITS  
An overvoltage battery protection circuit includes a voltage comparator configured to compare a scaled version of a voltage with a voltage reference and indicate an overvoltage condition when the...
US20110255203 CHARGE PUMP SWITCH POWER DOWN PROTECTION  
This application discusses, among other things, switch circuit apparatus having power down protection and not requiring power up sequencing. An apparatus embodiment can include a first supply node...
US20110007440 Safety Circuit for a Household Appliance  
The present invention relates to a household appliance (1) comprising a control circuit (2) that maintains the electronic control and a safety circuit (3) that detects the errors in the control...
US20110273137 PROTECTION CIRCUIT, BATTERY PACK AND CHARGING SYSTEM  
A protection circuit having: a connecting terminal for receiving a voltage for charging a rechargeable battery; a switching element interposed between the connecting terminal and the rechargeable...
US20140168838 Method and Component for Voltage Instability Protection in an Electric Power System  
Voltage instability protection for an electric power system is implemented by determining a change in power injected into a region of interest within the electric power system based on...
US20120250204 PROTECTION CIRCUIT AND INPUT/OUTPUT CIRCUIT  
A first voltage dividing circuit is connected between a power feeding line to feed power from an external power supply to an internal circuit, and a fixed potential to divide a voltage of the...
US20110007441 METHOD AND CIRCUIT FOR SHORT-CIRCUIT AND OVER-CURRENT PROTECTION IN A DISCHARGE LAMP SYSTEM  
Embodiments of the present technology provide short-circuit detection and protection suitable for a discharge lamp system. In several embodiments, the transformer's primary current is sensed and...
US20140226243 SYSTEM AND METHOD TO DERIVE POWER AND TRIP A CIRCUIT BREAKER FROM AN EXTERNAL DEVICE  
An electronic trip unit (ETU) configured to trip a circuit breaker using power from an external device is provided. Additionally, a system for enabling an electronic control unit (ETU) to trip a...
US20140321015 POWER DISTRIBUTION AND INFORMATION HANDLING  
A method includes supplying power from a power supply to a. first electrical circuit breaker. The method includes detecting whether at least one of a current and a voltage of the power has...
US20120075760 PROTECTION OF AN ELECTRONIC EQUIPMENT  
A device for protecting electronic equipment having an output terminal includes an electronic breaker switch linked between the output terminal and ground, and a protection means which protects...
US20150162819 SHORT PROTECTION CIRCUIT FOR POWER SWITCH AND ASSOCIATED PROTECTION METHOD  
A short protection circuit for protecting a power switch. The short protection circuit has a transistor and compares a differential voltage between a first end of the power switch and a second end...
US20110261492 PROTECTION TO AVOID ABNORMAL OPERATION CAUSED BY A SHORTED PARAMETER SETTING PIN OF AN INTEGRATED CIRCUIT  
For a system to avoid abnormal operation caused by a shorted parameter setting pin of an integrated circuit, a protection apparatus and method apply a buffered reference voltage to the parameter...
US20120153903 PROTECTOR OF RECTIFIER AND WIRELESS POWER RECEIVER INCLUDING PROTECTOR  
A protector that protects a rectifier, and a wireless power receiver including the protector are provided. In one embodiment, a protector for an electronic device may include: a switch configured...
US20140301005 Low Side NMOS Protection Circuit for Battery Pack Application  
An electric circuit comprising means for communicating with an external device coupled to means for measuring the charge condition of an external battery. In some embodiments, the circuit...
US20150022925 ELECTRONIC MODULE, ELECTRONIC ARRANGEMENT AND METHOD FOR PRODUCING AN ELECTRONIC MODULE  
An electronic module (100) has a first and a second circuit (200, 300) with respective first and second output connections (230, 330), respective first and second reference potential connections...
US20140160609 SHORT-CIRCUIT PROTECTION CIRCUIT OF LIGHT EMITTING DIODE AND SHORT-CIRCUIT PROTECTION METHOD THEREOF AND LIGHT EMITTING DIODE DRIVING APPARATUS USING THE SAME  
A short-circuit protection circuit of a light emitting diode (LED) is for protecting a plurality of LED strings from a short-circuit condition. The short-circuit protection circuit includes a...
US20110279938 DYNAMIC LEAKAGE CONTROL USING SELECTIVE BACK-BIASING  
Embodiments of a dynamic leakage control circuit for use with graphics processor circuitry are described. The dynamic leakage control circuit selectively enables back biasing of the transistors...
US20110043956 PROTECTION CIRCUIT FOR POWER AMPLIFIER  
Techniques for protecting a power amplifier (PA) are described. In an exemplary design, an apparatus includes (i) a PA module to amplify an input RF signal and provide an output RF signal and (ii)...
US20140055897 SWITCHING MODULE INCLUDING SWITCHING ELEMENT CONTROLLED TO BE TURNED OFF WHEN CONDUCTION FAILURE IS DETECTED  
A switching module includes a switching element having a control terminal, electrically connected to a first conduction path including a reference terminal, to be opened and closed by controlling...
US20110286138 Temperature Controller  
A temperature controller comprises a first power supply input interface and a second power supply input interface for inputting alternating current, a main control module, a temperature safety...
US20130265683 CIRCUIT FOR PROTECTING AN ELECTRIC LOAD FROM OVERVOLTAGES  
A circuit for protecting an electric load from overvoltages has an n-channel MOSFET (metal oxide semiconductor field-effect transistor) (T1) and a means for producing a reference voltage in order...
US20150214725 POWER FAULT DETECTION IN TRANSCEIVERS  
A host voltage monitor is provided for a transceiver. The host voltage monitor may include a comparator, which compares two voltages, one representative of the present host voltage, and the other...
US20110205678 Protection Circuit And Electronic Device  
A protection circuit that is used with a power supply that produces charging power, and a storage battery for which normal operation is conditional upon a terminal voltage being less than or equal...
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...
US20120075759 Safe Exposed Conductor Power Distribution System  
A power distribution system that can detect an unsafe fault condition where an individual or object has come in contact with the power conductors. A block diagram of the present invention is shown...

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