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8184413 |
Fault condition protection
A regulator for a switched mode power supply includes switching regulator logic, a counter and a switching transistor. The switching regulator logic is coupled to receive a feedback signal and to...
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8184412 |
Electric power converter
A voltage source converter including a string of series connected active semiconducting elements. The converter includes in case of an active semiconducting element failure a calculation element...
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8184419 |
Power supply with current limiting circuits
A power supply (200) is provided having a plurality of independent current limiting circuits. A first current limiting circuit (6) provides protection against a short circuit or other extraneous...
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8174802 |
Switching regulator and operations control method thereof
A switching regulator is disclosed. In the switching regulator, when a power source voltage is lowered to a first predetermined value due to an overcurrent, a voltage boost operation is temporarily...
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8169755 |
Power supply system
A power supply system is provided with devices of generating an electric power, controlling an amount of power generation, charging an electric power having been generated, converting an electric...
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8164866 |
Identification and protection of an aerospace AC-DC power system in the presence of DC content due to faulty loads
A fault protection system for an AC-DC distribution system detects the presence of DC content at individual loads, isolates the load responsible for the fault from the remainder of the distribution...
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8159796 |
Power integrated circuit with high insensitivity to parasitic inductances of wires for connection to a package and package for said integrated circuit
The present disclosure relates to an integrated circuit and a package on which such integrated circuit is placed, the latter having a power output stage, at least one first pad, one second pad and...
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8159797 |
Overvoltage protection circuit
An input terminal is externally input with an input voltage. An output transistor of N-channel MOSFET is arranged between the input terminal and an output terminal. A charge pump circuit steps up...
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8148960 |
Voltage regulator circuit
It is desired for semiconductor devices to reduce an inrush current and an overshoot. According to the voltage regulator circuit of the present invention, when a power supply is turned on, a switch...
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RE43291 |
PFM-PWM DC-DC converter providing DC offset correction to PWM error amplifier and equalizing regulated voltage conditions when transitioning between PFM and PWM modes
To prevent a voltage glitch in the regulated DC output voltage of a PWM/PFM DC-DC converter when switching between PFM and PMW modes, the error amplifier of the converter's PWM regulation path is...
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8143867 |
Electric power supply device
In an electric supply device of the present invention, since a semiconductor element T1 is interrupted before a drain voltage V1 of the semiconductor element T1 is lower than an in-phase input...
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8138736 |
Power system having a local sense control dominant over a remote sense control to avoid effects of interconnection failure modes
A power system is configured to provide a regulated voltage to an electrical load connected to a power source through at least one power line. The power system includes a first voltage control loop...
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8139327 |
Semiconductor integrated circuit
An integrated circuit formed on a semiconductor chip includes voltage regulators for stepping down an externally-supplied power voltage to produce an internal power voltage, and internal circuits...
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8130478 |
Power limiting system for multiple electric motors
A power limiting system for multiple electric motors includes an electrical power generating component, such as an alternator, and a plurality of motor controllers connected to an electrical bus....
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8125747 |
Method for mitigating negative sequence effect resulting from non-symmetrical short circuit failure of synchronous electric machine based systems
A drive system for a multi-phase electric machine with a permanent magnet rotor, the drive system may comprise conduction paths for each phase. Detectors on each of the conduction paths may...
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8121318 |
Two channel audio surround sound circuit with automatic level control
The two channel audio surround sound circuit with automatic level control includes a right amplifier, a left amplifier, a right automatic level control and a left automatic level control. A right...
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8116045 |
Circuitry and methodology for protecting a boost DC/DC converter
Protection circuitry protects a boost converter coupled between input and output nodes for driving a load coupled to the output node. The protection circuitry may comprise a first circuit...
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8098469 |
Electricity delivery system
An electronic system can include a switch and a regulator coupled to the switch. The switch can be used to deliver electricity from a first terminal to a second terminal. The switch can also be...
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8094423 |
Protection circuit for MOSFET
The present invention relates to a protection circuit for MOS-technology field-effect transistors. The circuit comprises at least one MOSFET protected by a module for blocking said MOSFET, the...
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8077437 |
Integrated circuits and power supplies
We describe a semiconductor-on-insulator integrated circuit die comprising a substrate bearing a power conditioning circuit, the power conditioning circuit comprising at least two power devices, a...
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8065025 |
Configuration of a frequency converter
A configuration tool for configuring a frequency converter includes an interface with connector poles for connecting the configuration tool to the frequency converter and feeding configuration data...
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8050004 |
Power circuit with feed through protection circuit
A power circuit includes a gate drive sever comparator circuit operable to disconnect a pre-drive transistor circuit from ground in response to an over voltage fault condition. A back-up gate drive...
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8040699 |
Secondary side constant voltage and constant current controller
A low-cost integrated circuit is used as a secondary side constant voltage and constant current controller. The integrated circuit has four terminals and two amplifier circuits. A first amplifier...
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8035934 |
Shift switching device and shift switching method
A shift-by-wire shift switching device and shift switching method that switch a shift range of an automatic transmission using an electric motor. The shift switching device includes a controller...
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8031705 |
Bus interface unit for interposing in a two-wire current loop, as well as a transducer, position controller and analog input and output module with such a bus interface unit
A bus interface unit is provided for intermediate switching in a two-wire current loop, wherein the bus interface unit has a transformer for potential-free decoupling of an alternating current...
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8028885 |
Electric surgical instrument with optimized power supply and drive
A surgical instrument includes a surgical end effector having at least one actuation assembly to effect a surgical procedure when actuated, an electric motor operationally connected to the end...
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8027130 |
Fan system and power reverse protection apparatus thereof
A fan system is electrically connected to a power source, and the fan system includes a power reverse protection apparatus, a voltage regulator, a driver, and a fan. The power reverse protection...
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8018694 |
Over-current protection for a power converter
In one embodiment, a method is provided for a power converter system. The method includes: providing a primary current limit for the power converter system, wherein the power converter system has...
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8009393 |
Thermoelectric device utilized as voltage snubber
An electric circuit includes a plurality of electric circuit elements. The circuit is prone to creating voltage spikes on a pair of spaced lines. A jumper line connects the pair of spaced lines. A...
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7994765 |
Power supply device
A power supply device, comprising first and second lead terminals for connection with a load, a fuel cell, an energy storage element connected between the first and second lead terminals, a...
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7995329 |
Modular power distribution system and methods
A modular power distribution system comprises a chassis; and a backplane including a power input, and a plurality of module connection locations. A plurality of modules are mounted in the chassis,...
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7994757 |
DC-DC converter
To securely detect the short-circuited state of a rectifier without detecting current and to protect a switching device in a DC-DC converter, in a state in which the potential at the connection...
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7986499 |
Current limiting circuit and voltage regulator using the same
Techniques pertaining to a voltage regulator with a current limiting circuit having low quiescent current are disclosed. According to one aspect of the present invention, a current limiting circuit...
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7986136 |
Switching mode power supply apparatus and power supply method thereof
A switching mode power supply apparatus includes a conversion unit to convert input power into output power having a predetermined voltage by performing a switching operation; a light emitting unit...
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7986537 |
Overcurrent-protected switching-mode power supply
A DC-to-DC converter having an active switch connected between a pair of DC input terminals via the primary winding of a transformer whose secondary winding is connected to a pair of DC output...
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7982333 |
Voltage regulator having overvoltage protection
A voltage regulator having overvoltage protection which is situated in a vehicle electrical system between the generator that is situated in a first voltage level and a battery that is situated in...
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7978445 |
Systems and apparatus relating to wind turbine electrical control and operation
An electrical system for connecting a wind turbine to a power grid that includes: a frequency converter that converts electric power produced by a generator of the wind turbine into electric power...
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7974049 |
Over-current protection in linear regulators
An integrated circuit radio transceiver and method therefor includes a linear regulator an output transistor for producing a current into an output node of the regulator wherein an amplification...
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7969694 |
Diode loss detection for low side MOSFET of a synchronous output stage
An embodiment of the invention relates to a switch-mode power converter including an inductor and an external rectifying diode. A series arrangement of a resistor and a switch are coupled in...
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7965475 |
Overheat protection circuit
An overheat protection circuit of a semiconductor apparatus has an output current detecting circuit for detecting an output current of a constant voltage circuit; a temperature detector for...
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7961444 |
High voltage power supply
A high voltage power supply includes a current overflow prevention unit to detect a change in a load of a device that is operated by an output power supplied from a transformer and to ground...
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7961446 |
Temperature protection circuit, power supply, and electronic device
A temperature protection circuit comprises means adapted to compare the temperature being monitored with each of threshold temperatures and judging that the temperature being monitored reaches a...
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7952841 |
Device for detecting malfunctions by manipulation of an internal voltage supply
A device for determining an interference with a regulated voltage provided by a control loop with a unit for monitoring a control variable of the control loop and a unit for generating a...
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7948720 |
Voltage regulator with transient recovery circuit
A power controller having good transient performance and including a voltage regulator and one or more (K) transient recovery circuits is described. The voltage regulator receives a supply voltage...
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7944663 |
Over-current protection circuit
An over-current protection circuit for use with a constant voltage circuit that converts an input voltage to a predetermined output voltage and that outputs the predetermined output voltage. The...
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7944661 |
Protection circuit, flat display device using the same, and method for driving flat display device using the same
A protection circuit which is capable of preventing a faulty operation resulting from an abnormal control signal a method for operating the same, a flat display device using the same, and a method...
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7940026 |
Methods and apparatus for charging a battery in a peripheral device
A power manager for managing power delivered to a battery operated peripheral device is disclosed. The power manager includes an input current limiter arranged to suppress a power surge associated...
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7936540 |
DC-DC converters having improved current sensing and related methods
A DC-DC converter includes a chip including an error amplifier, a pulse width modulator (PWM), and an inductor driven by said PWM in series with an output node (VOUT), wherein a load current flows...
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7928710 |
Voltage protection circuit for thin oxide transistors, and memory device and processor-based system using same
Devices, reference voltage generators, systems and methods may include an embodiment of a voltage regulator output transistor using a thin gate insulator to provide a low output impedance despite...
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7928702 |
Driving circuit for use with high voltage depletion-mode semiconductor switches
A driving circuit for a half bridge utilizing bidirectional semiconductor switches in accordance with an embodiment of the present application includes a high side driver operable to control a high...
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