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7616418 |
Mitigation of current collapse in transient blocking units
A transient blocking unit (TBU) includes at least two depletion mode transistors connected to each other such that they can rapidly switch from a normal low-impedance state to a high-impedance...
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7599167 |
Active balancing circuit modules, systems and capacitor devices
Circuit modules, systems and devices for controlling voltages across capacitors.
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7589946 |
Local access port communications using near field induction
A method for accessing an electronic circuit in an enclosure using near field induction is disclosed. The method involves attaching at least one local access port connector with an external...
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7589941 |
Fault current limiter having superconducting bypass reactor for simultaneous quenching
A fault current limiter comprises a pancake type current limiting module, comprising at least two pancake type bifilar winding modules stacked and connected to each other in series, each of the...
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7579707 |
Discharge prevention circuit and electronic equipment provided with the discharge prevention circuit
A discharge prevention circuit and electronic equipment with the discharge prevention circuit are provided. The discharging prevention circuit includes a first power line, a second power line, a...
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7576962 |
Transient blocking apparatus with reset
A method and apparatus for transient blocking relying on a transient blocking device and a sampling circuit. The transient blocking device has at least one depletion mode n-channel device...
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7564664 |
ESD protection circuit for a high frequency circuit
An ESD protection circuit is disclosed. In one embodiment, the ESD circuit is coupled to at least one signal transmission line and a positive and negative supply voltage of an integrated circuit,...
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7551412 |
Wiring fault correction circuit
A wiring fault correction circuit for determining wiring conditions of an AC supply system includes: input line and neutral conductors connectable to the AC supply system; output line and neutral...
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7545653 |
Semiconductor integrated circuit device
A disclosed semiconductor integrated circuit device includes a digital circuit and an analog circuit formed on one semiconductor substrate; a guard band configured to prevent noise generated in the...
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7545609 |
Direct-current stabilized power supply device
In a direct-current stabilized power supply device provided with an output transistor that receives an input voltage from the outside and a control circuit that controls the output transistor so...
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7512818 |
Circuit for protecting motherboard
A circuit for protecting a motherboard of a computer includes a first transistor (Q 1 ) and a second transistor (Q 2 ). A CPU with a CPU voltage terminal ( 10 ) configured for electrically...
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7508641 |
Method of forming an in-rush limiter and structure therefor
In one embodiment, an in-rush limiter is configured to control an output voltage to increase at a rate that is independent of the load that is powered by the in-rush limiter.
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7499252 |
Driver circuit
A driver circuit for an electronic switch, the driver circuit having a first input for receiving a first control signal, and a second input for receiving a signal from a current sensor, the driver...
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7486491 |
Ground detector and DC-AC inverter for vehicles
A ground detector includes a pair of lines, a first series circuit, a reference portion, a second series circuit, and a detection point. The first series circuit connects the lines to each other....
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7477499 |
Switching element and protection circuit using the same
Provided is a switching element including: first switching element primarily used for formation of a two-way current path; a second switching element that forms, at the time when the first...
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7466113 |
Break-before-make sensing for drivers
A driver package includes an integrated circuit (IC) comprising pull up circuitry capable of turning ON an associated switch and pull down circuitry capable of turning OFF the associated switch....
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7433166 |
Constant current generator
A constant current generator connected between first and second terminals includes a gate turn-off thyristor in series with a resistor; a current limiting component connected between the anode gate...
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7428134 |
Energy pathway arrangements for energy conditioning
The system of an energy conditioner comprising: a conductive shield structure comprising a first conductive shield layer, a second conductive shield layer, and a third conductive shield layer;...
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7391596 |
High frequency integrated circuit pad configuration including ESD protection circuitry
A high frequency integrated circuit (IC) pad configuration includes a first IC pad, an inductor, and a second IC pad. The first IC pad is directly coupled to input or output a high frequency...
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7385828 |
Electronic shunt resistor assembly
An electronic shunt resistor assembly comprises a planar shunt resistor and an electronic monitoring unit. The planar shunt resistor has a resistance element and first and second terminal bars at...
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7359169 |
Circuit for protecting integrated circuits against electrostatic discharges
A circuit is described that protects an integrated circuit from electrostatic discharges or electrical over-stress. The circuit arrangement has first and second protective elements connected in...
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7359164 |
Superconducting matrix fault current limiter with current-driven trigger mechanism
A modular and scalable Matrix-type Fault Current Limiter (MFCL) that functions as a “variable impedance” device in an electric power network, using components made of superconducting and...
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7345861 |
Capacitor circuit with surge protection
A capacitor circuit with surge protection that is selectively connected between a voltage source and a device includes a first capacitance element has one end that communicates with a first...
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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...
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7339772 |
Hot-swap protection circuit
Embodiments of the present invention provide methods and circuitry for protecting a circuit during hot-swap events. Hot swap protection circuitry includes as overcurrent detection circuit which...
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7327542 |
Current limiter for limiting current in case of a fault
In a current limiter for limiting currents in case of a fault including an additional device comprising an additional electric valve connected in series and being conductive in the same direction...
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7324315 |
Protection device
A protection device is enclosed. The device has a first MOSFET (Q 10 ), a second MOSFET (Q 11 ) and a third JFET (Q 12 ) with their conductive paths in series with the JFET (Q 12 ) being...
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7321102 |
Float switch transient suppression device
A float switch system for limiting to desirable levels current and energy entering a tank of combustible liquid comprises: a float switch disposed within the tank; an interface circuit external to...
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RE39855 |
Power management strategy to support hot swapping of system blades during run time
A hot swappable system is described. It included software controlled hot swapping operations which provided a graceful booting or power-down of the system. In the even of force insertion or...
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7268991 |
Electrical circuit protection system
A system to protect electrical circuits from rapid changes of voltage associated with a fault in an electrical load comprises an inductor placed in series between a drive circuit and load. The...
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7256977 |
Device for protection from thunder
This invention aims at preventing a thunderbolt attack detecting circuit from determining that no thunderbolt is approaching because the thunderbolt attack detecting circuit turns to its initial...
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7239492 |
Control system for at least one vacuum interrupter gap
A control system for at least one vacuum interrupter gap in a high-voltage switching device includes at least one non-reactive control resistor disposed in parallel with the vacuum interrupter. The...
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7230456 |
Low current consumption detector circuit and applications
A low current consumption detector circuit, and its applications are described herein.
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7203051 |
Apparatus for controlling power and signal of electronic equipment with controlling unit and subordinate unit
The present invention is related to electronic equipment having a controlling unit and a subordinate unit, and more particularly, to an apparatus for controlling power and signal of electronic...
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7145759 |
Overcurrent protection circuit including auto-reset breaker and PTC resistor
An overcurrent protection circuit for low-voltage, high-current electrical systems comprises a Positive Temperature Coefficient (PTC) resistor in series with an auto-reset thermal breaker. The...
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7116537 |
Surge current prevention circuit and DC power supply
A surge current prevention circuit and DC power supply for preventing surge current in various operation applications with a small circuit configuration. A power switch connects an external power...
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7113383 |
PREDETERMINED SYMMETRICALLY BALANCED AMALGAM WITH COMPLEMENTARY PAIRED PORTIONS COMPRISING SHIELDING ELECTRODES AND SHIELDED ELECTRODES AND OTHER PREDETERMINED ELEMENT PORTIONS FOR SYMMETRICALLY BALANCED AND COMPLEMENTARY ENERGY PORTION CONDITIONING
A predetermined amalgamation of electrodes formed or manufactured at least in part, by predetermined, sequential manufacturing operations into a balanced and shielding electrode structure. The...
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7113381 |
Overcurrent protection circuit including auto-reset breaker and PTC resistor
An overcurrent protection circuit for low-voltage, high-current electrical systems comprises a Positive Temperature Coefficient (PTC) resistor in series with an auto-reset thermal breaker. The...
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7110235 |
Arrangement for energy conditioning
Circuit arrangement embodiments that use relative groupings of energy pathways that include shielding circuit arrangements that can sustain and condition electrically complementary energy confluences.
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7110227 |
Universial energy conditioning interposer with circuit architecture
The present invention relates to an interposer substrate for interconnecting between active electronic componentry such as but not limited to a single or multiple integrated circuit chips in either...
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7106570 |
Pathway arrangement
Components embodiments that can sustain and condition complementary energy propagations and confluences of multiple circuitry. 0
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7099135 |
Integrated inrush current limiter circuit and method
An inrush current limiter circuit ( 20 ) includes a detection circuit ( 30 ) that produces a control signal (V DRIVE ) from a sense current (I SENSE ). A power transistor responds to the control...
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7072159 |
Current limiter with low drop voltage for surge protection and fuse protection
A current limiter circuit which exhibits a low dropout voltage. The current limiter circuit is suitable for protecting process control equipment operating on a current loop. The current limiter...
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7068010 |
Motor power supply and method of controlling the same
A motor power supply for and a method of operating a poly-phase AC motor with power provided from an AC power source through a DC-conversion circuit and an inverter. An output voltage of the...
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7064943 |
Boost-type switching power device
A boost-type switching power device which obtains a dc output by connecting a rectifying diode to the output side of an inductance element, connected in series to a main switching element, the...
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7042303 |
Energy conditioning circuit assembly
The present invention is a component carrier ( 132 ) consisting of a plate of insulating material having a plurality of apertures ( 140 ) for accepting the leads of a thru-hole differential and...
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7031130 |
Protection device for protecting a voltage source and a load supplied thereby
A device for protecting a voltage source and a load supplied with power by the voltage source, comprises a switching element interposed between the voltage source and the load and is associated...
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7031127 |
Short circuit protection
Output current of an amplifier is limited by clamping the voltage at the gate of one or more of the transistors in the output stage. A drive signal is provided to the gate of a p-type transistor in...
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7027279 |
Combined harmonic filter and phase converter or phase shifting device
A harmonic mitigating device also functions as a phase converter for supplying single-phase non-linear loads, or as a phase shifting device for three-phase non-linear loads with multiple inputs to...
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7005858 |
System and method for decreasing ESD damage during component level long term testing
A method is disclosed for minimizing damage from electrostatic discharge (ESD) during long-term testing of electronic components and assemblies. The method includes conducting a stress-test, during...
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