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7622886 |
Method for determination of the risk to disturbance-free operation of a frequency converter
The invention relates to a method for determining the chance of a disturbance-free operation of a frequency converter ( 2 ) connected to a feeding network ( 18 ). According to the invention, during...
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7622828 |
Loaded triac output system
The interfacing of a controller having an output with components (e.g., a triac) that require more current to successfully drive than the amount of current that is drawn by the circuit or...
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7598627 |
Switch-mode power supply
A switch-mode power supply for selectively providing power from a main power source and a standby power source to an electronic device is provided. The switch-mode power supply includes a signal...
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7589436 |
Data processing unit and DC backup power supply
A backup power supply is so constructed that it is provided with multiple DC backup power supplies 111 to 11 N, each containing nickel-metal hydride battery, stored upright on the bottom of the...
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7547994 |
Apparatus and method for managing power of mobile terminal
An apparatus for managing power of a mobile terminal includes: a first voltage regulating unit that changes the level of power from an external power source to a first level; a second voltage...
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7471015 |
Electronic apparatus controlling an electric power supply to a main microprocessor and peripheral devices through an auxiliary microprocessor
In an electronic apparatus such as a DVD recorder ( 1 ) which controls electric power supply to a main micro processor ( 3 ) and peripheral devices ( 10, 11, 15 ) with a auxiliary micro processor (...
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7450726 |
Headset detector in a device generating audio signals
A detector circuit detects whether a headset is present (inserted) in a jack by measuring the impedance between the connection points of the jack. The detector circuit further determines the...
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7449800 |
Power control system
A power control system for use in an electronic device provided with a transforming module becoming self-contained upon connection with a power supply includes a switch module, a delay module, and...
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7446438 |
Power control circuit
A power control circuit includes an electronic switch ( 20 ) interposed between a power unit ( 10 ) and an electronic device ( 30 ), a driving circuit ( 40 ) and a mechanical switch ( 50 ). The...
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7439706 |
Battery determination system for battery-powered devices
This system provides a method for determining whether ordinary battery cells, a battery pack, and/or a charger unit are attached to a portable electronic device. The system provides a center...
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7417339 |
Fast transition power supply
A power supply includes at least one current source for providing current and a reference voltage generator for providing a first reference voltage and a second reference voltage. A control circuit...
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7403135 |
Capacitive relay takeoff swimming platform sensor system
A capacitive relay takeoff swimming platform sensor system including multiple stations, timing devices and capacitive sensor devices where the presence or departure of a second swimmer on a relay...
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7397384 |
Track lighting system current limiting device
A current limiting system in accordance with the present invention comprises an accessory or canopy mount device that is permanently installed between a source of electrical power 1 and a track...
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7391134 |
Electrical safety lockout mechanism for power tools and other hazardous machinery
An improved electrical lockout mechanism includes a first connection means to a power source, and a second connection means to the power input terminal of the machine being protected. The machine...
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7391133 |
Hybrid switch
An electrical switching topology for a hybrid switch provides extremely low losses in both cryogenic and non-cryogenic electronic systems. In this switch having switch modules connected in...
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7382065 |
Circuit for controlling inductive loads, in particular of electro actuators, at high efficiency
The control circuit comprises a source of dc voltage, a first electronic switch, interposed between a first terminal of the voltage source and a corresponding first terminal of the load, a second...
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7369921 |
Power distribution expert system
A power distribution expert system is provided to determine an optimal power distribution configuration, and also to determine an optimal transition path to reach said optimal configuration. An...
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7352086 |
Switching circuit, switching module and method of controlling the switching circuit
A switching circuit includes switching transistors connected to one of an input terminal and an output terminal of the switching circuit, and a control bias supply circuit that supplies a control...
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7352085 |
Disconnection of electronic device from power source
A mechanism of one embodiment of the invention is disclosed that disconnects an electronic device from a power source includes a user-actuable switch, an electronically controllable switch, and a...
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7327053 |
Electronic power circuit
An electronic power circuit includes at least one power semiconductor whose control inputs are connected to a trigger device and a power supply which, on the output side, is connected to terminals...
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7327052 |
Modular connecting system for protecting an electrical load in a bus system
An electrical distribution system includes a plurality of separate consumer modules for supplying power to a plurality of consumer loads, respectively. Each of the consumer modules includes an...
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7271506 |
Rack mountable power distribution apparatus
Power distribution apparatus include a rack mountable housing, an electrical power input assembly and an electrical power output assembly including a plurality of external circuits adapted for...
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7262522 |
Microelectromechanical isolating power converter
A microelectromechanical system (MEMS) device is used to transfer power from a source generator to a power generator that delivers electrical power to a load, while maintaining electrical isolation...
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7259481 |
Automatic transfer switch capable of receiving input power having voltage within a wide range
An automatic transfer switch (ATS) system and method of operating an ATS system are disclosed. The ATS system includes at least one input port capable of being coupled to at least one power source...
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7245491 |
Storage medium protection system
Disclosed is a storage medium protection system for protecting one or more storage media from the effects of one or more undesirable conditions. The system includes an enclosure formed from a...
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7239047 |
Switch device incorporating capacitive oscillator
A switch ( 10 ) comprises a face plate ( 16 ) and a single switch sensing oscillator ( 18 ) responsive to a switch activating presence. The oscillator ( 18 ) has a resistive component ( 36 )...
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7235751 |
Electric device, a current limiter and an electric power network
An electric device including an electric switch having a plurality of contact members arranged in series to form a plurality of breaking points arranged in series. One of the contact members at...
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7230354 |
Driver system for MOSFET based, high voltage, electronic relays for AC power switching and inductive loads
A method and apparatus provides for high-speed switching of high-voltage and high power MOSFET-based solid state relays. A driver for a MOSFET based, high voltage, high current electronic relay...
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7187090 |
Mobile high voltage network
A mobile high voltage network supplies electrical consumer units connected via a plug-in connector and can be switched on and off by means of mechanical switches, with a fuse responding in the...
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7177132 |
Method and apparatus for determining a switching signal state
A technique for controlling a switching circuit includes one or more sensing circuits that generate signals based upon the presence of an actuating object and upon a randomly applied strobe signal....
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7164368 |
Multi-channel proportional user interface for physical control applications
New techniques are presented for providing proportional activation of model railroad functions and effects with control keys on a model railroad layout control system. This permits for example a...
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7155603 |
Circuit arrangement for detecting the state of at least one electrical switch
Circuit arrangement for detecting the state of at least one electrical switch having at least one set input (Set 1 , Set 2 , Set 3 ) in each case and at least one sensor output (Sensor 1 , Sensor 2...
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7132767 |
Method and circuit for switchover between a primary and a secondary power source
An integrated circuit and method for providing a switchover from the primary power source to the secondary power source to prevent a volatile element from losing stored data. The integrated circuit...
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7109609 |
Method and pulse-control circuit for a power component
The invention concerns the control of thyristor-type semiconductor power components (Sw) powered by an alternating current network (VS). The control signal is a pulse (Ie). It is stored in the form...
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7068496 |
Docking solution for a tablet notebook computer
A docking solution for a tablet notebook computer is described. Specifically, the docking solution provides a way to adjust the tilt angle of the tablet screen while conserving area. Further, a...
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7065662 |
Information handling system featuring a power-based current limiting circuit
A method of implementing a power-based current limiting circuit in an information handling system includes providing a power supply having an output voltage operating range that can vary between a...
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7028511 |
Direct current power supply for a washing appliance
A direct current power supply for a washing appliance powered is disclosed. The power supply includes a switch mode power supply which supplies direct current at a low voltage level from a high...
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7019417 |
Power-on reset circuit with current detection
There is provided a power-on reset circuit for generating a power-on reset signal regardless of a power-up slope using not an RC delay method but a current detection method. The power-on reset...
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7015674 |
Booster pack with storage capacitor
A jump-start booster pack for starting a vehicle having a depleted vehicle battery is provided. The jump-start booster pack includes a positive connector that can couple to a positive terminal of...
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6992405 |
Dynamic voltage scaling scheme for an on-die voltage differentiator design
According to one embodiment, an integrated circuit is disclosed. The integrated circuit includes a plurality of circuit blocks. Each circuit block includes a voltage differentiator that generates a...
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6989613 |
Line voltage variation compensation apparatus
Circuit apparatus for interconnection between an electric power source of expected variability and an recreation vehicle requiring a known fixed range of voltage change. A voltage sensor ( 18 ) for...
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6963183 |
Control circuit for a direct current motor
The invention relates to a control circuit for a direct current motor with a reverse pole protection device, which is connected to the electric circuit of the electrolytic capacitor and the...
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6961856 |
Personal computer protection device
A personal computer protection device for disconnecting a computer system from a communications channel during power down periods. The personal computer protection device includes a power sensor...
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6950779 |
Apparatus and method for detecting incorrect connector insertion, and program for carrying out the method
An apparatus for detecting incorrect connector insertion. The apparatus includes a first member including a first connector; a second member including a second connector; a test signal output...
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6934561 |
Cable or module identification apparatus and method
This invention includes a universal base unit having a plurality of cables, each corresponding to a unique electronic host device. The cable includes a capacitor having a value corresponding to a...
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6930409 |
Electromechanical switching device
An electromechanical switching device ensures automatic selected polarity interconnection between terminals of two power sources. A double pole double throw (DPDT) switch has three pairs of...
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6921989 |
Electrical switchgear with synchronous control system and actuator
A closed loop feedback system controls electrical switchgear that moves at least one contact relative to another contact to switch power on and off in an AC electrical circuit. The control system...
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6920404 |
Method of detecting residual capacity of secondary battery
Correlations between a residual capacity of a secondary battery and 4 parameters of an internal resistance, temperature, a discharge current and one of an open circuit voltage and a discharge...
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6901326 |
Circuit layout and procedure to control at least one electrical component of a motor vehicle
Circuit layout to control at least one electrical component of a motor vehicle via a control signal, wherein the circuit layout comprises a digital control unit that provides an output signal...
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6894406 |
Superconducting switching element and method
The invention relates to a switching element for modifying the electric resistance with at least one high temperature superconductor ( 1 ) and means ( 3 ) for irradiating electromagnetic high...
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