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8183823 |
Selective powering of medical device depending on authentication of power adapter system
In an embodiment, a medical device can be used with a power adapter system. In addition, it can receive a data set from the power adapter system, and examine the data set to determine whether the...
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8183834 |
Current to frequency conversion, apparatus and methods
Electronic apparatus, methods of forming the electronic apparatus, and methods of operating the electronic apparatus include features of current to frequency conversion that may be implemented in a...
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8179098 |
Charge controlling semiconductor integrated circuit
Disclosed is a charge controlling semiconductor integrated circuit including: an electric current controlling transistor connected between a voltage input terminal and an output terminal to control...
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8179087 |
Selective recharging of medical device depending on authentication of power adapter system
In an embodiment, a medical device can be used with a power adapter system. In addition, it can receive a data set from the power adapter system, and examine the data set to determine whether the...
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8179103 |
System and method for boosting battery output
Electrical apparatuses, systems and methods involving battery boost circuitry configured to charge a supercapacitor to a regulated voltage different from the battery voltage and apply a series...
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8154259 |
Capacitor save energy verification
A memory subsystem is configured to obtain power from an external system and from at least one power capacitors. The memory subsystem includes logic to verify the power delivery capability of the...
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8154258 |
Backup energy storage module with voltage leveling
An energy storage module for providing backup power to electronic systems includes one or more capacitor banks, each including one or more capacitors for storing energy. The energy storage module...
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8148954 |
Rapidly charging super cap based rechargeable device
A super-capacitor-powered device is quickly recharged from an energy buffer incorporated in a USB cradle or USB dongle. That USB energy buffer itself is slowly refilled while it is connected to a...
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8148955 |
Motor vehicle
A motor vehicle includes an on-board vehicle electric system, an electric consumer, whose resistance decreases with the decreasing voltage dropping at the consumer, an electric energy accumulator,...
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8148953 |
Apparatus and method for recycling and reusing charge in an electronic circuit
An apparatus and method for recycling and reusing charge in an electronic circuit. The apparatus includes at least one capacitor coupled to a circuit block in the electronic circuit, the capacitor...
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8148943 |
Method and arrangement for discharging an energy storage system for electrical energy
A method and an arrangement for discharging an energy storage system for electrical energy, particularly in a vehicle having a hybrid drive line, by means of a first discharge resistor, wherein a...
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8143863 |
Circuits and methods for controlling a current flowing through a battery
A circuit for controlling a current flowing through a battery includes a driver and a filter coupled to the driver. The driver can generate a pulse signal in a first operating mode and generate a...
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8134343 |
Energy storage device for starting engines of motor vehicles and other transportation systems
An energy storage device for storing energy for starting an internal combustion engine of a motor vehicle includes a DC-DC converter, a plurality of capacitors connected electrically to the DC-DC...
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8134333 |
Battery and ultracapacitor device and method of use
A battery and ultracapacitor device for use in a vehicle includes a positive electrode, a first negative electrode, a second negative electrode, a first separator disposed between the positive...
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8120332 |
Method and system for shot tracking
The present invention is a method for transmitting a RFID signal while conserving battery power of a circuit. The method comprises charging a capacitor using a battery. The battery is in electrical...
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8120330 |
Amplitude lock loop for producing constant amplitude oscillator ramp signal
An oscillator that includes an energy storage system configured to store energy, a ramp circuit configured to generate an oscillating ramp signal having a slope that is a function of the amount of...
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8120331 |
Power supply device, scanner power supply device, and image forming apparatus
A power supply device accumulates charges generated by a photovoltaic unit. The power supply device includes a first capacitor having a first capacitance, in which the charges generated by the...
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8120314 |
Portable electronic device and capacitive charger providing data transfer and associated methods
The electronic apparatus includes a portable electronic device and a charger for capacitively charging the portable electronic device when the portable electronic device is temporarily placed...
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8115457 |
Method and apparatus for implementing a power converter input terminal voltage discharge circuit
A circuit to discharge a capacitance between input terminals of a power system is disclosed. An example circuit includes a control circuit coupled to an input of a power system. The control circuit...
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8115456 |
Circuit for a power supply unit for generating a DC voltage
A circuit is disclosed for a power supply unit for generating a DC voltage, the power supply unit having a current transformer, a rectifier, a series circuit including a first blocking diode and a...
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8106628 |
Capacitor charging apparatus
A capacitor charging apparatus includes a transformer and an output capacitor charged with current flowing through a secondary coil of the transformer, and charges the output capacitor by...
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8102158 |
Phase synchronization circuit
A phase synchronization circuit comprising: a charging/discharging-circuit to charge/discharge a capacitor in accordance with a drive-signal, charging and/or discharging current-values of the...
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8102157 |
Multi-output power supply device having charge pump circuit
A multi-output power supply device of low noise is disclosed that converts a first input voltage to plural different voltages. The multi-output power supply device includes a first power supply...
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8102159 |
Power distributor and semiconductor device having the same
A power distributor includes a large reservoir capacitor, a switch coupled between at least one power supply line and the large reservoir capacitor, and a controller configured to turn on or off...
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8076908 |
Method for controlling a vehicle electric system including a storage capacitor for brief supply of electrical power on demand
A method for controlling the electrical system of a motor vehicle with a generator, a battery to supply the electrical system, at least one load and a storage capacitor for brief supply of...
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8072729 |
Battery-spark and reverse polarity protection method and circuit for safely connecting a trolling motor to a power source
The protection method and circuit provide a time delay after a first contact with the power source is made until full power is allowed connection to the trolling motor. This time delay is longer...
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8072095 |
Power management for power constrained devices
Techniques are disclosed for optimizing power consumption in electronic devices that operate on battery-based or scavenged power. The power scavenged or otherwise supplied by such devices may...
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8072724 |
Over-voltage protection circuit
An over-voltage protection circuit is disclosed herein for protection against over-voltage of an energy storage device while charging. The circuit operates within the operational limits of a...
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8063597 |
Electric circuit providing protection from transients
An electric circuit for supplying power to a DC application is disclosed. The electric circuit comprises a DC power source (1) connectable to an alternator charging circuit (2), an FET (T7), and a...
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8063611 |
Accumulator
A DC blocking capacitor and a resistor are coupled in series, and coupled in parallel with an electricity storing section. An ON/OFF circuit and a peak voltage holding circuit are coupled in...
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8058877 |
Circuit for measuring battery voltage and method for battery voltage measurement using the same
The present invention relates to circuit for measuring battery voltage and method for battery voltage measurement using the same. In the circuit for measuring battery voltage and method for battery...
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8058847 |
Method and system to measure series-connected cell voltages using a flying capacitor
A method and system for measuring voltage of individual cells connected in series includes a pair of busses connectable to the cells and a flying capacitor connectable to the busses. The capacitor...
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8049363 |
Motor drive circuit
A motor drive circuit comprises positive and negative input terminals for connection of the motor circuit to a DC supply, a DC link filter connected between the input terminals: an electric motor...
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8044814 |
Physical key to facilitate an inactive mode for a state-of-charge indicator within a battery
The invention provides a system and battery including a state-of-charge indicator (SOCI) to monitor and display the amount of charge within the battery. The SOCI is capable of operating in a...
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8045344 |
Regulating output current from a primary side power converter by clamping an error signal
An inductor current flows through an inductor of a flyback converter. In a constant voltage mode, the pulse width of an inductor switch control signal is adjusted to maintain a constant output...
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8035356 |
Ultra-capacitor based uninterruptible power supply
A backup power supply includes at least one ultra capacitor to store energy. The backup power supply includes a multiphase boost converter to provide a relatively constant voltage level from the...
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8030904 |
Oscillator circuit
An oscillator circuit including a charge/discharge unit, a capacitance amplifier, and a level detection circuit is provided. The charge/discharge unit is used to receive a control signal, and...
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8030903 |
Power generator and electronic apparatus
A power generator capable of improving power generation efficiency is obtained. This power generator includes a movable portion moving by kinetic energy acting on a power generator body, a first...
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8008894 |
Adjusting a top charge capacitor voltage according to an operating temperature of the capacitor
An apparatus includes a capacitor and logic to adjust an operating temperature of the capacitor according to a charge on the capacitor, and/or to adjust a charge of the capacitor according to the...
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8004249 |
Battery management system and method
A battery management system is provided. A voltage of a first battery cell is charged to a capacitor. Then, the voltage of the capacitor is measured, the measured voltage being the voltage of the...
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7994756 |
Power distribution circuit for use in a portable telecommunications device
A power distribution circuit for use in a personal telecommunications device comprises a switched mode power supply configured to convert an input voltage and current from an energy source into an...
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7990107 |
Electronic device and charging control circuit
An exemplary charging control circuit includes a signal shaping unit, a first switch unit, and a second switch unit. The signal shaping unit receives a control signal, and is capable of reshaping...
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7986131 |
Booster power supply circuit and control method therefor and driver IC
A booster power supply circuit includes a booster boosting an input voltage to output an boosted voltage for applying said boosted voltage to a first smoothing capacitor and a controller...
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7982438 |
Method and circuit for controlling the refresh rate of sampled reference voltages
The present invention relates to controlling the refresh rate of the reference voltage on a sampling capacitor (Csamp). A comparator (COMP) compares the voltage on a first capacitor (C1) with the...
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7982439 |
System for energy harvesting and/or generation, storage, and delivery
A device and method for harvesting, generating, storing, and delivering energy to a load, particularly for remote or inaccessible applications. The device preferably comprises one or more energy...
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7977923 |
Circuits for electroactive polymer generators
Described herein is a generator with an electroactive polymer transducer. The transducer has a capacitance that varies with deflection of a polymer included in the transducer. The generator also...
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7977921 |
AC-to-DC voltage conversion and charging circuitry
Voltage conversion and charging circuitry and method for converting an alternating current (AC) voltage to a direct current (DC) voltage for charging an energy storage element (e.g., battery or...
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7960947 |
Adaptive frequency compensation for DC-to-DC converter
One embodiment of the invention is a compensation circuit that includes a comparator that is coupled to receive a reference voltage. The compensation circuit can also include a capacitance coupled...
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7952320 |
Portable electronic device and capacitive charger providing data transfer and associated methods
The electronic apparatus includes a portable electronic device and a charger for capacitively charging the portable electronic device when the portable electronic device is temporarily placed...
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7948727 |
Over-voltage protection circuit
An over-voltage protection circuit is disclosed herein for protection against over-voltage of an energy storage device while charging. The circuit operates within the operational limits of a...
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