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6773532 |
Method for improving heat dissipation in optical transmitter
A method of positioning a heat generating component on a header to enhance heat sinking characteristics includes positioning the header on a first pedestal, wherein the first pedestal and the...
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6771476 |
Circuit protector
A circuit protector comprising a substrate, a conductive layer formed around the substrate, a narrowed portion formed on the conductive layer at a certain part, terminals formed at both ends of the...
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6771079 |
Automobile multi-purpose DC source protection monitor
An automobile multi-purpose DC source protection monitor includes of a fuse protection module; multiple units of fuse being arranged on each fuse-carrier, then respectively connected to electric...
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6768624 |
Fan protection
In a protection circuit for a plurality of fans, an element is associated with each fan. The impedance or the current value of the element indicates the operation condition of the fan. For example,...
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6765776 |
Configurable interrupter for circuit overcurrent conditions
Electrical power distribution circuits for motor vehicles incorporate a switching element for controlling the energization of the circuits. Current metering elements associated with each switching...
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6765777 |
Overvoltage-protection device
Overvoltage-protection device, applicable in particular to the low-voltage mains, comprising, between the two lines ( 1, 2 ) of the mains, a gas-discharge arrestor ( 3 ), a varistor ( 4 ) and a...
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6759891 |
Thermal shutdown circuit with hysteresis and method of using
An integrated circuit ( 10 ) includes a thermal shutdown circuit that incorporates hysteresis for shutting down a functional circuit ( 13 ) when its temperature exceeds a predefined value. First...
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6751080 |
Control circuit for semiconductor device with overheat protecting function
A control circuit for a semiconductor device with overheat protecting function is provided, which includes: a semiconductor element; an overheat protecting means; a chip to mount the semiconductor...
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6737621 |
Microwave oven and high voltage control circuit of the same
A microwave oven having a high voltage control circuit which prevents an overheating of a high voltage transformer. The high voltage control circuit includes a thermostat which is turned on or off...
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6735065 |
Semiconductor module
A semiconductor module includes a housing with at least one semiconductor component that is conductively connected to at least one output line. An integrated temperature sensor is also housed in...
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6728088 |
Protection circuit against high currents in lighting converters
An electronic thermal protection circuit is for high currents which can occur in the start-up phase in lighting converters. The circuit is associated with a power device having an output terminal...
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6721159 |
Power feeding apparatus, transporter and transport system
In a power feeding apparatus having pickup coils L 1 and L 2 , a rectifier circuit 4 and output terminals U and V, the relays R 1 and R 2 are connected between the output side terminals of the...
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6717788 |
Temperature-protected semiconductor circuit configuration
A temperature-protected semiconductor circuit configuration that has an integrated switching unit. The switching unit is formed of a semiconductor switch, a first integrated temperature sensor for...
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6713737 |
System for reducing noise from a thermocouple in an induction heating system
A method and apparatus for reducing electrical noise in an electrical signal from a temperature feedback device to an induction heating system. The induction heating system has an electrical...
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6702457 |
Method and apparatus for a thermal wake-up circuit
An apparatus and method is directed to a thermal wake-up circuit and a thermal sensor that are utilized by another circuit. The thermal wake-up circuit monitors a temperature associated with the...
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6700768 |
Fuse housing
The invention relates to a cost effective protective device for safeguarding an electrical device against overcurrent. The preferred exemplary embodiment is a conductor track fuse that is arranged...
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6700767 |
Temperature-based cooling fan controlling structure
Temperature-based cooling fan control structure mainly including a thermistor for measuring ambient temperature, a voltage amplification system to indicate voltage needed for the cooling fan to...
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6697246 |
Overload protector structure of extension cord receptacle
The present invention relates to an overload protector structure of an extension cord receptacle that mainly comprised a fire wire conducting plate of a switching unit (or a receptacle unit)...
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6678829 |
System and method of regulating the distribution of power throughout a system through the use of uni-directional and bi-directional switches
An integrated solution to power management and distribution on a power bus, such as needed for an IEEE 1394 compliant expansion board. The integrated circuit includes a uni-directional switch on...
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6678138 |
Environmentally insensitive surge suppressor apparatus and method
A surge suppressor conducts heat from a surge protection component (SSC) through a heat conductive element, such as a copper pad, on a printed circuit board, to at least one thermal fuse to cause...
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6678137 |
Temperature compensation circuit for an arc fault current interrupting circuit breaker
An arc fault current interrupting (AFCI) circuit breaker includes a pair of electrical contacts for stopping the flow of electrical current in a protected portion of the distribution circuit. A low...
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6678131 |
Arc-safe electrical receptacles
Electrical receptacles configured to eliminate arc faults rather than merely detect such faults with attendant circuit disconnection, the invention contemplates low-cost, child-safe electrical...
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6674369 |
Fan control circuit
There is described a circuit for controlling the operation of a fan. The circuit operates to control the speed of the fan and to operate the means to monitor fan malfunctioning.
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6674623 |
Microcomputer equipped with built-in temperature sensor
In a microcomputer equipped with a built-in temperature sensor, diodes as a temperature sensor are incorporated in a pair of circuit blocks, respectively, and placed in opposite polarity connection...
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6671152 |
Power MOS transistor with overtemperature protection circuit
A power MOS transistor having a PMT chip located in a transistor housing in which the temperature of the transistor barrier junction is monitored is described. Protection of the PMT chip against...
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6670870 |
Lockout for reset mechanism of electrical protective device
An electrical protective device that includes a reset mechanism uses a resistor body to act as a hold-off to a spring driven lockout for the reset mechanism. Upon the failure of an internal...
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6671187 |
Protection device having a sleeve and method of assembling a battery with a protection device and an electrical component
A protection device for an electrical component that has a protective housing and a terminal cap. The protective housing has a base with a contact hole therethrough for accommodating an electrical...
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6667869 |
Power control system and method for illumination array
A power control system and method controls power supplied from a power source to a resistive load, such as a LED illumination array, to prevent the load from exceeding a high temperature limit. The...
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6667868 |
Thermal shutdown control for multi-channel integrated circuit boards
A multi-channel power shut-down circuit that includes a plurality of channel disabler circuits formed on a common substrate where each of the channel disabler circuits includes a first...
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6665163 |
Method for controlling fan in computer system
In a docking station for a PC, a PCI adapter, an IDE controller, and a PC card controller operate when a PCI clock is supplied from the PC, and stop when the supply of the PCI clock is stopped by...
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6661633 |
Protective element
The protective element 20 A includes a first PTC element 1 , as well as a low-melting-point metal member 2 , a heat-generating member 3 and a second PTC element. A the PTC material 1 ′...
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6650519 |
ESD protection by a high-to-low resistance shunt
A method and apparatus for protecting a thin film sensor such as a magnetoresistive head from damaging electrical transients, such as electrostatic discharge. A thin film sensor assembly includes a...
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6636403 |
Thermally protected metal oxide varistor
A varistor has a thermal fuse between a lead and an electrode. The fuse includes a link extending between the surface of an insulator and the fused electrode. The electrical connection of the link...
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6631066 |
Apparatus and method for initiating crowbar protection in a shunt regulator
A method and apparatus provide for improved crowbar protection in a shunt regulator circuit including a shunt device. An over-temperature protection circuit may be combined with a fast-crowbar...
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6628485 |
Apparatus for limiting an electrical current
The invention relates to an apparatus for limiting an electrical current by using a PTC resistor being monitored by a monitor circuit. According to the invention, the monitor circuit issues a...
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6628491 |
Semiconductor component with a circuit for driving an electrical load
The semiconductor component has a circuit configuration for driving an electrical load. The circuit includes a control circuit with a power switch driven by a drive configuration and feeding a...
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6624995 |
Semiconductor device and method of activating a protection circuit with a sampling pulse
A semiconductor device ( 10 ) includes a protection circuit ( 12 ) that has an input ( 24 ) for activating the protection circuit in response to a sampling pulse (V ENABLE ) to detect a fault...
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6621677 |
Method and system for series fault protection
A method for protection of an electrical installation against series fault. The method is directed to detection of heat development at specific points in the installation by means of individual...
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6621678 |
Thermal protection circuit and method for protecting power delivery circuit
A thermal protection circuit arranged in an integrated circuit for protecting a power delivery is disclosed. The thermal protection circuit for protecting a power delivery circuit includes a first...
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6614639 |
Control system including rectifier and method for controlling rectifier bridge by disabling gating of semiconductor device based upon heat sink or junction temperature
A control system includes a rectifier bridge including a heat sink having a temperature, and also including an SCR having a gate. The SCR thermally engages the heat sink. A circuit controls the...
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6600641 |
Overcurrent protection for the series fuse
This invention includes a circuit that approximates the thermal behavior of a fuse or other electronic device that is coupled in series with the circuit. In one preferred embodiment, the circuit...
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6597556 |
Circuit for protection from excess temperature
An integrated circuit having a power transistor and a circuit arrangement functioning in a temperature dependant manner and thermally coupled to the power transitor. The integrated circuit is used...
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6583977 |
Zipper fuse
This invention includes a current limiting circuit comprised of an array of switch-fuse pairs. Switches are coupled in series with fuses to form fuse-switch pairs. The fuse switch pairs are coupled...
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6583973 |
Electrical conditioning monitoring module for a vehicular electrical system
An interface device adapted to be connected between an electrical circuit and a monitor. The invention of a common terminal, “n” number of sensing terminals, “n” number of sensing...
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6577486 |
Stacked-type electronic device having film electrode for breaking abnormal current
A stacked-type capacitor with a fuse function for breaking an abnormal current wherein internal electrodes of a same polarity stacked in a ceramic body are led out to an outer surface of the...
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6574082 |
Methods and systems for operating temperature controls for electronic equipment
Electronic equipment can be operated in an enclosure wherein the electronic equipment is powered by a DC power source including a rectifier that receives an AC power signal and a battery that...
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6563684 |
Method of manufacturing excess current interrupting structure
An excess current interrupting structure comprising a conductive wire rod which generates heat by an excess current connected between a pair of electric conductors, a circumference of the...
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6560085 |
Circuit breaker including positive temperature coefficient resistivity element and current limiting element
An apparatus and method for interrupting the flow of electrical current in a line is disclosed. The invention provides for better limitation of current than can be achieved in the prior art. With...
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6556404 |
Self powered cooling fan and method
Electrical distribution equipment generally includes a housing defining an enclosed space and a conductor in the enclosed space. A current transformer utilizing current in the conductor induces...
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6552888 |
Safety electrical outlet with logic control circuit
An electrical safety outlet for accepting a plug to provide power to electrical appliances including a power supply and an intelligent circuitry for controlling the power supply to the electrical...
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