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Patent # Description
US-8,085,029 Bandgap voltage and current reference
Circuits and methods that improve the performance of reference circuits are provided. A reference generator circuit maintains a substantially constant output...
US-8,085,028 Method of driving a semiconductor device
As for a transistor, overlapped are factors such as a variation of a gate insulation film which occurs due to a difference of a manufacturing process and a...
US-8,085,027 Quasi-resonant systems and methods with multi-mode control
Switch-mode power conversion system and method thereof. The switch-mode power conversion system includes a primary winding configured to receive an input...
US-8,085,026 Current sense cascode amplifier
A current sense amplifier sensing current through a main switch of a converter. The amplifier includes first and second switch devices, an amplifier control...
US-8,085,025 Short circuit current ratcheting in switch mode DC/DC voltage regulators
A regulator with a high side pass device and a low side pass device coupled in series to the high side pass device is disclosed. The apparatus further includes...
US-8,085,024 Self-tuning digital current estimator for low-power switching converters
A switched mode power can use a digital controller to control the switching of the at least one switch of the switched mode power supply. The current through...
US-8,085,023 Signal generation circuit, electric power conversion control circuit and LSI for electric power conversion control
The control accuracy equal with the case controlled according to a reference signal with a high clock frequency when the electric power is converted is obtained...
US-8,085,022 Switching regulator and control circuit thereof, and method for determining on-time in switching regulator
The present invention discloses a switching regulator and control method thereof, and a method for determining On-time in switching regulator. The switching...
US-8,085,021 PFC converter having two-level output voltage without voltage undershooting
A switching controller for a PFC converter is provided. The switching controller comprises a switching-control circuit, a current-command circuit, a...
US-8,085,020 Switching voltage regulator employing dynamic voltage scaling with hysteretic comparator
A switching voltage regulator is disclosed operable to regulate a voltage supplied to system circuitry. A comparator compares an oscillator signal generated by...
US-8,085,019 Device for generating internal power supply voltage and method thereof
Example embodiments relate to an internal power supply voltage generating device. The internal power supply voltage generating device may include a start-up...
US-8,085,018 Voltage regulator with phase compensation
Provided is a voltage regulator capable of performing appropriate phase compensation. Even when a difference between an input voltage and an output voltage is...
US-8,085,017 Pulse adding scheme for smooth phase dropping at light load conditions for multiphase voltage regulators
A pulse control system for a multiphase regulator including an error amplifier, a multiphase generator, and an adaptive controller. The error amplifier provides...
US-8,085,016 Power supply circuit having standby detection circuit
A power supply circuit includes a voltage output controller configured for outputting voltages, a standby controller configured for directing the voltage output...
US-8,085,015 Current balancing circuit and method
A multi-phase power converter and a method for balancing a plurality of currents in the multi-phase power converter. The multi-phase power converter has a pulse...
US-8,085,014 Dual power switch with activation control and voltage regulator using same
The present invention discloses a dual power switch and a voltage regulator using the dual power switch. The dual power switch comprises a PMOS power switch and...
US-8,085,013 DC power converter and mode-switching method
A DC converter and a mode-switching method used in an electronic apparatus are included. The electronic apparatus includes a subsystem circuit. The DC power...
US-8,085,012 Semiconductor integrated circuit and sensor driving/measuring system
In a sensor driving/measuring system, specifications required by a sensor which requires a high applied voltage are implemented with const increase suppressed....
US-8,085,011 Boost regulator using synthetic ripple regulation
A boost regulator for converting an input voltage to a higher output voltage including an inductor, an error circuit, a switching circuit, a ripple circuit, and...
US-8,085,010 TRIAC/SCR-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation
A TRIAC/SCR-based energy savings device, system and method (1) wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal...
US-8,085,009 IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation
An IGBT/FET-based energy savings device, system and method (1) wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal...
US-8,085,008 System for accounting for switch impendances
A Universal Serial Bus (USB) switch matrix is provided. The switch matrix generally comprises a switch network, and amplifier, a adjustable current source, and...
US-8,085,007 Switching power supply circuit
A switching power supply circuit, which includes: a switch; a coil serving as an energy transmitting element; and a capacitor serving as an output generation...
US-8,085,006 Shunt regulator
A shunt regulator for stepping down an input potential to an output potential, has an input for applying the input potential, an output for tapping off the...
US-8,085,005 Buck-boost converter with sample and hold circuit in current loop
In an average-current mode control type buck-boost PWM converter, a sample and hold circuit is inserted in the current loop to avoid problems associated with...
US-8,085,004 Generator with quadrature AC excitation
A generator system is configured to supply two phase excitation current from an exciter rotor to a main generator rotor. When driven by a variable speed prime...
US-8,085,003 Voltage regulated permanent magnet generator
A single phase AC generator uses a rotor contained within a stator. The stator has an armature winding and a control winding which is capable of having its...
US-8,085,002 Shore power transfer switch
A vehicle includes a mobile electric power generation system including a mobile power source such as a generator. An external power interface is included to...
US-8,085,001 Battery charging control circuit
The present invention provides a charging control circuit for a rechargeable battery. The charging control circuit includes: a constant-current charging unit...
US-8,085,000 Charger including a bias voltage applied to a rectifier to rectify received radio waves based on rectifier...
A charger includes: a rectifier to rectify a received radio wave to generate a charging current; a potential generator to generate a bias voltage setting an...
US-8,084,999 Method for charging lithium batteries with power dissipation control
Herein described are at least methods and systems to control power dissipation while charging a device. In a representative embodiment, the method comprises...
US-8,084,998 Method and device for controlling a storage voltage of a battery pack
A storage voltage of a battery pack is controlled with control electronics. The storage voltage of a battery pack is sensed, and a discharge mechanism is...
US-8,084,997 Voltage sensor module and voltage monitoring apparatus
Provided is a voltage sensor module monitoring a voltage of each of a plurality of battery cells, including: first and second terminals each receiving a voltage...
US-8,084,996 Method for battery capacity estimation
An embodiment contemplates a method for estimating a capacity of a battery. A state of charge is determined at a first instant of time and at a second instant...
US-8,084,995 Intelligent lithium-battery-activating charging device
An intelligent lithium-battery-activating charging device is connectable between a charging power source and an application electrical device and contains an...
US-8,084,994 System to extend the service life of portable devices
A method for extending the service life of a portable device includes monitoring a battery of a portable device; identifying a problem bank; reconfiguring a...
US-8,084,993 Replacement system for heavy battery banks
A plurality of manually maneuverable battery bank modules are formed into a train and transported by a vehicle to the site of electrically operated equipment....
US-8,084,992 Tool storage cabinet having integrated power
A tool storage unit is disclosed having a cabinet structure with a plurality of surfaces defining a first interior space and a storage compartment defining a...
US-8,084,991 Power reception device, electronic apparatus, and non-contact power transmission system
A power reception device includes a first resistance element having one end electrically connected to one end of a secondary coil which is able to be...
US-8,084,990 Camping kit
An electrical system (60, 200) for a tent or shelter (98, 201). Wires (60) are routed through a tent or shelter (98, 201) either by attaching the wires to the...
US-8,084,989 Battery charger with charging reminding capability
A battery charger includes a rechargeable battery for providing electric power to an external rechargeable battery through a damper unit so as to charge the...
US-8,084,988 Power supply system
A power supply system includes a fuel cell, a capacitor connected in parallel to the fuel cell, a voltage boost means for boosting output voltages from the fuel...
US-8,084,987 USB port with smart power management
A method involves detecting an inrush current that flows out of a USB port of a first electronic device when a central processing unit (CPU) of the first...
US-8,084,986 Dead-time compensation apparatus of PWM inverter and method thereof
A dead-time compensation method is applied to a PWM inverter, which is provided to drive an induction motor using a constant V/f control. The method first...
US-8,084,985 Inverter control method
Two current threshold values are adopted, which are larger than the upper limit of current of an operating region. When a rotating speed is smaller than a speed...
US-8,084,984 System and method for monitoring and controlling stator winding temperature in a de-energized AC motor
A system and method for measuring and controlling stator winding temperature in an AC motor while idling is disclosed. The system includes a circuit having an...
US-8,084,983 Laundry treatment machine and method of controlling the same
There are provided a laundry treatment machine and a method of controlling the same. A temperature around a motor is sensed and the range of current input to...
US-8,084,982 HVAC actuator with output torque compensation
An HVAC actuator, such as a spring return actuator, may adjust the maximum output torque of the motor with the varying spring return force of the HVAC actuator...
US-8,084,981 Rechargeable electric power tool
In a rechargeable electric power tool, upon changeover of a trigger switch, a microcomputer determines the magnitude relation between the detected temperature...
US-8,084,980 HVAC actuator with internal heating
An HVAC actuator configured to function in cold environments by providing a supplemental current component to an HVAC actuator in order to generate supplemental...
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