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Match Document Document Title
7453679 Apparatus and method for driving inverter circuit  
An inverter apparatus includes an inverter circuit, a temperature sensor, and a control circuit. The inverter circuit is driven by a PWM signal and includes switching elements that are divided in...
7453052 Electrical distribution apparatus with controlled cooling  
An electrical distribution apparatus configured to connect a load to a power source is disclosed. The apparatus includes a housing having an air inlet and an air outlet, a distribution conduction...
7450359 System and method for providing a temperature compensated under-voltage-lockout circuit  
A system and a method are disclosed for providing a temperature compensated under-voltage-lockout circuit that has a trip point voltage that is not sensitive to temperature variation. The...
7443123 Method and apparatus for preventing overheating in an electronically commutated motor assembly  
A control circuit for a motor includes a voltage regulator having a thermal shutdown apparatus that turns off the voltage regulator when the temperature of the control circuit rises above a...
7441173 Systems, devices, and methods for arc fault detection  
Certain exemplary embodiments comprise a system that comprises an application specific integrated circuit configured to provide an output signal. The output signal can be configured to trip a...
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...
7425805 Three-in-one control device for a ceiling fan  
A three-in-one control device for a ceiling fan includes a signal receiving module, which is able to receive segmented controlled signals, stepless controlled signals and wireless controlled...
7420792 Linear charger where the material temperature directly affects the circuit thermal control  
Methods and apparatus are disclosed for protecting circuits from damages caused by elevated temperatures. Presented embodiments illustrate IC thermal protection circuits that shut down power...
7417841 Apparatus and method for fusing voltage surge and transient anomalies in a surge suppression device  
A circuit board is enclosed in a housing containing rows of metal oxide varistors. Multiple surge ferrule type fuses are soldered directly to circuit board holes between the rows of metal oxide...
7408756 Electro mechanical contactor device for welding wire feeder  
An electro mechanical contactor device in a wire feeder for an electric arc welder having a power source and a gun with a contact tip through which welding wire is fed and a weld cycle start...
7400483 Method and apparatus providing final test and trimming for a power supply controller  
A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown...
7400482 Circuit breaker and method for sensing current indirectly from bimetal voltage and determining bimetal temperature and corrected temperature dependent bimetal resistance  
A circuit breaker includes a bimetal electrically connected in series with separable contacts, and an operating mechanism structured to open and close the contacts. A temperature sensor distal from...
7397653 Inverter design  
An inverter component layout and mounting bracket are disclosed which allow for electrical components, or the inverter as a whole to be replaced easily in the field. The disclosed mounting bracket...
7394636 Slave mode thermal control with throttling and shutdown  
Within a group of components in a circuit, each component in the group has a thermal detector that describes whether that component is operating at a temperature that is normal, high or fatal. A...
7394635 Current detection circuit and protection circuit  
A disclosed current detection circuit includes a current/voltage converting element for generating a voltage in accordance with an input current, a reference voltage generation circuit for...
7379285 Apparatus for driving inductive load  
An apparatus is disclosed that drives an inductive load according to a control signal from an external controller transmits temperature data to it for indicating a condition of the inductive load...
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...
7368784 Thermal protection device for an integrated power MOS  
A thermal protection device is for an integrated power MOSFET transistor including an interdigitated array of source regions and drain regions defined in a well region of the monocrystalline...
7365954 Power device protection circuit  
A protected power device includes a power transistor with an internal control line to receive a control line current and a fault detector, coupled to the internal control line. A power device...
7365294 Microwave oven  
A microwave oven, including a transformer assembly accommodating a transformer and filled with a cooling material to cool the transformer; and a temperature-sensitive switch electrically connected...
7362557 Method, apparatus and article for bi-directional DC/DC power conversion  
A controller implements a state machine for operating the bi-directional power converter with a flexible load pattern while maintaining a thermal condition of the power converter within acceptable...
7359172 Junction temperature sensing for MOSFET  
A method of protecting a MOSFET switch from overheating. The method is achieved by determining a ratio of ON resistance of the switch to resistance of a sense resistor, the sense resistor being...
7352522 Control means and method of controlling a current through a coil  
Method of controlling a current through a coil (L) for the generation of a magnetic field (H) in which: a parameter is determined which is a measure for the value of the resistance (R L ) of the...
7342762 Resettable circuit protection apparatus  
A circuit protection device includes a solid-state resettable switch, a first terminal in electrical communication with a first portion of the switch, the first terminal configured to be connected...
7339773 Method for driving a semiconductor switch and circuit configuration with a semiconductor switch  
A method for driving a semiconductor switch with load current limiting and thermal protection whose maximum load current is limited and which switches off when a predetermined upper temperature is...
7336465 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
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...
7336464 Power limiting circuit  
A power limiting circuit is disclosed. The power limiting circuit includes a temperature sensing circuit that outputs a temperature signal that is proportional to temperature over a temperature...
7336055 Method for detecting abnormality of temperature sensors, and power supply apparatus  
A power supply apparatus includes an assembled battery including a plurality of cells, a plurality of temperature sensors sensing temperatures of the plurality of cells, respectively, a current...
7333314 Power controller, power control method, information processor, and power control program  
A power control unit that can perform preventing a secondary battery from generating heat and preventing power supply from being suddenly shut off. Supply of power from a secondary battery to a...
7330097 Direct current cutoff switch  
In a direct current cutoff switch 1 , a PTC 5 , which is a non-linear resistor, is parallel connected to a contact circuit composed of a fixed contact 4 - 2 and a movable contact 8 - 2 via...
7321484 Providing accurate detection of chip overheat and local overheat conditions in integrated circuits  
A thermal shutdown system that can accurately detect a chip overheat condition or a local overheat condition is described. This system can include a first shutdown circuit triggered by the chip...
7319578 Digital power monitor and adaptive self-tuning power management  
A method and apparatus are provided for determining power events on an I/C chip for undissipated power to the chip, and wherein the chip includes a plurality of separately regulatable power...
7319577 Safety shut off for water heaters  
A water heater includes a gas valve and a solenoid to operate the gas valve. A thermocouple of the water heater is heated by a pilot light to provide a current source to maintain the gas valve in...
7317605 Method and apparatus for improving performance margin in logic paths  
An apparatus and method is disclosed for improving timing margins of logic paths on a semiconductor chip. Typical logic embodiments, such as CMOS (Complementary Metal Oxide Semiconductor), have...
7310213 Semiconductor device provided with overheat protection circuit and electronic circuit using the same  
A overheat protection circuit is formed on the same semiconductor substrate as a power MOS FET is formed on. As the configuration, a first resistor is connected between an input terminal and a gate...
7301746 Thermal shutdown trip point modification during current limit  
A thermal shutdown circuit for protecting a main FET that conducts a load current ILOAD. A reference circuit provides a temperature current proportional to temperature. A thermal sensor circuit has...
7301745 Temperature dependent switching circuit  
A temperature dependent switching circuit comprises a first transistor with a threshold voltage Vth having a negative temperature coefficient. A diode having a forward voltage drop with a negative...
7286886 Safety controller and method for loading a new operating program onto the safety controller  
The invention relates to a safety controller and to a method for loading a new operating program onto such a safety controller. The safety controller has an input module for automatically reading...
7272885 Method of manufacturing surge arrestor  
The present invention relates to a method of manufacturing surge arrestors, the method including stacking varistors; and forming a coating of composite material on the stack. Between these steps,...
7253542 Quiet fan speed control  
A novel a circuit for driving a fan includes an output terminal for supplying the fan with drive power, a pulse width modulation driver, and a limiter. A first power terminal of the fan is held at...
7242565 Thermal shut-down circuit  
A primary current circuit 42 that outputs a primary current IPTAT proportional to the primary coefficient of temperature, secondary current circuit 43 outputs a secondary current IPTAT 2 ...
7242564 ESD protection circuit for charge pump and electronic device and system using the same  
An ESD protection circuit for a charge pump circuit, wherein the charge pump circuit provides a first voltage pin and a second voltage pin, and the absolute value of a voltage provided by the first...
7242113 Power semiconductor device  
A power semiconductor device which makes a heat come hard to arise in a particular element and is able to control an increase of the amount of a power loss caused by a tail current, even in case...
7239496 Distance protective relay using a programmable thermal model for thermal protection  
The system includes a distance protective relay for power lines which includes a logic capability which is responsive to settings entered into the relay by an end user to implement the value of...
7233473 Protection circuit and method for floating power transfer device  
A protection circuit and method are provided for a floating power transfer device having one or more switches for controlling charging of a reservoir capacitor across which a load is applied when...
7227733 Method and apparatus providing final test and trimming for a power supply controller  
A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown...
7216064 Method and apparatus for programmable thermal sensor for an integrated circuit  
A programmable thermal sensor is implemented in an integrated circuit such as a microprocessor. The programmable thermal sensor monitors the temperature of the integrated circuit, and generates an...
7215525 Overheat protector for a dc-to-dc converter or the like  
A Schottky barrier diode is employed for temperature sensing, being capable of indicating temperatures above 110° C. or so by the magnitude of its reverse current. The overheat protector is...
7209048 Device for monitoring and alerting of a power disruption to electrical equipment or an appliance  
The present invention is a simple, inexpensive and reliable device for monitoring and alerting of a power disruption to an appliance or a piece of equipment. An audible and/or visual alarm may be...
7203049 Over-current protection device  
The over-current protection device of the present invention uses the unbalanced properties of the thermal expansion coefficients between the outer and inner sides for an upper metallic conductive...
Matches 1 - 50 out of 802 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >