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7622879 |
Thermal protection apparatus and method for hybrid vehicles
Thermal variable-operation regulator that regulates the operation of an operating device by progressively limiting the operation of the operating device ( 24 ) as a limitation temperature (Tset)...
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7619867 |
Conformal coating enhanced to provide heat detection
Disclosed is an enhanced conformal coating, a process for making the same, and several computer related applications. A commercially available conformal coating is combined with a commercially...
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7616420 |
Excessive surge protection method and apparatus
A surge protection apparatus connected between an electrical power line source and a load includes a voltage input, an inductor, and a protective barrier. The voltage input is coupled to the...
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7609496 |
Non-feedback type load current controller
An electrical load is supplied with power from a driving power source, and a microprocessor (CPU) controls the opening/closing current supply rate (duty factor) of an opening/closing element in...
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7607828 |
Methods and systems for protection from over-stress
One embodiment of the invention relates to a circuit for over-stress protection. The circuit includes a temperature rate sensor configured to monitor the temperature of a semiconductor device...
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7605352 |
Method for sorting positive temperature coefficient (PTC) elements
In a method for sorting PTC elements having different resistance-temperature characteristics, a predetermined voltage that allows a current to sufficiently decay is applied to each of PTC elements...
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7595970 |
Electronic trip indicator
Certain exemplary embodiments comprise an apparatus comprising, a circuit breaker comprising: an integral thermo-magnetic trip device adapted to trip said circuit breaker upon an occurrence of a...
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7587262 |
Temperature averaging thermal sensor apparatus and method
A temperature averaging thermal sensor is implemented in an integrated circuit such as a microprocessor. The temperature averaging thermal sensor monitors the temperature of the integrated circuit...
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7586725 |
Method of providing a secondary means of overload protection and leakage current protection in applications using solid state power controllers
The present invention provides an overload protection circuit having a first switch connected at a first side to a source of electrical power and at a second side to a load, the switch having on...
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7586281 |
Methods and apparatus for optimal voltage and frequency control of thermally limited systems
Methods, apparatus, and articles of manufacture control a device or system that has an operational limit related to the rate or frequency of operation. The frequency of operation is controlled at a...
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7581128 |
Microcomputer selecting operating condition
A microcomputer includes a CPU, a program memory for storing a subroutine program, peripheral circuits, a clock circuit, and a voltage drop detection circuit. When the voltage drop detection...
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7561392 |
Intrinsically safe data transmission device
A process control system ( 1 ) comprises at least one process control computer ( 2 ) and field units ( 4 ) connected thereto via a bus system. An, in particular, intrinsically safe data...
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7558849 |
Hardware management module
A hardware management module is enabled to perform hardware management for a modular platform system that includes a plurality of modular platform shelves coupled via one or more communication...
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7558040 |
Trip indicator member, and limiter and electrical switching apparatus including a plurality of trip indicator members
A limiter includes three current limiters. Each current limiter includes a first end disposed proximate a first housing surface and electrically connected to a corresponding first terminal, a...
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7554300 |
Car power source apparatus
The car power source apparatus is provided with a plurality of batteries, a temperature detection circuit, and an abnormal temperature rise prevention circuit. The temperature detection circuit...
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7551418 |
Device for preventing internal combustion of equipment from spreading outwards
Two devices for preventing internal combustion of equipment from spreading outwards includes a sampling circuit, a detecting and monitoring circuit, and a low-voltage datum power supply. The...
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7542259 |
Protection apparatus and method for protecting electronic system using the same
A protection apparatus adapted for providing thermal protection to an electronic system includes a thermal detection module and a comparator unit. The thermal detection module is configured for...
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7539000 |
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...
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7538560 |
System and method for component failure protection
A system and method is presented for component failure protection. In one embodiment, the system includes an operational circuit configured to operate in a first operational state, wherein the...
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7535690 |
Arrangement and method for an integrated protection for a power system
For protecting a power system, two or three of over current, thermal and under voltage protection circuits are integrated as one protection circuit but operate independently, and one or more...
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7533284 |
System for controlling an operation state of a portable computer based on detected temperature of an external transformer
A temperature control system used in a portable computer comprises a first control part, a second control part connected to an operation processing unit (OPU), a third control part and a fourth...
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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...
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7508642 |
Method and apparatus applying virtual Δt trip criterion in power distribution
A virtual ΔT trip criterion is implemented in an electrical power distribution system to provide current-based tripping for a solid state power switching device. A first-order system model is...
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7499253 |
Semiconductor integrated-circuit unit with temperature protective circuit
A temperature protective circuit of the semiconductor integrated circuit unit of the present invention is configured such that the circuit includes a heat generation detecting section for detecting...
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7498913 |
Thermal trip device and circuit breaker using the same
A thermal trip device in which a bimetal ( 2 ) is heated by overcurrent and performs trip operation of a circuit by curvature of the heated bimetal ( 2 ), wherein at least one part of the surface...
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7495876 |
Circuit breaker integral temperature monitoring for advance detection of defective power conductor connections
A circuit breaker includes a breaker enclosure, a plurality of conductor connections, and a temperature sensor. The breaker enclosure contains internal components that include a trip unit. The...
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7492566 |
Low resistance transient blocking unit
A transient blocking unit (TBU) having reduced series impedance is provided. A TBU includes two or more depletion mode transistors arranged to provide a low series impedance in normal operation and...
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7492562 |
AFCI temperature compensated current sensor
An apparatus and method for thermally compensating a voltage signal for a circuit protection device. The circuit protection device is coupled to a powered circuit and having current flowing through...
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7480127 |
Power distribution bus with protection and alarming
Power distribution busses and methods are disclosed that provide flexible protection and alarming capabilities. Various embodiments provide interchangeability of fuses and circuit breakers within...
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7477503 |
Circuit protection device
A circuit protection device including a conductor arm releasably connected between a voltage sensitive device and a circuit to be protected. The connector arm is biased to move in a direction...
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7466083 |
Protective device for vehicle electronic apparatus
A protective device for a vehicle electronic apparatus, which includes an inverter for converting a direct-current voltage into an alternating-current voltage for the vehicle electronic apparatus,...
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7463463 |
Motor controller and motor temperature estimation method for the same
A motor controller includes: an estimated temperature calculating section that calculates and stores an estimated temperature of a motor, and a control section that can perform a drive control of...
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7460351 |
Electrical connection box
An electrical connection box comprises a base cover ( 1 ) having a plurality of first openings in both sides thereof; a top cover ( 8 ) having a plurality of second openings in both sides thereof;...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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