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| Number | Title | Issue Date |
| 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 power capacitors. ... | 04/10/2012 |
| 8120333 | Method of charging double electric layer electrochemical capacitors The present invention is directed to methods for the automatic charging of an electrochemical electrical energy storage device. Charging may be performed until a pre-assigned voltage increment value measured across the terminals of the storage device is reached. Rec... | 02/21/2012 |
| 8093868 | In situ verification of capacitive power support A mechanism for in situ verification of capacitive power support is provided. A memory system uses a super capacitor to support a voltage rail when input power is lost or interrupted. The voltage discharge curve is a function of load and capacitance of the component... | 01/10/2012 |
| 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 electrical power on demand, during which the battery is charged when the gene... | 12/13/2011 |
| 8049470 | Apparatus and method for charging super capacitors at limited voltage and/or current values irrespective of temperature Systems and methods are provided for charging a super capacitor bank. One method provides for determining a charge voltage for the super capacitor bank, providing a charging current, limiting the charging current according to a corresponding worst case temperature w... | 11/01/2011 |
| 7969121 | Power supply that uses a supercapacitive device A power supply (1) for powering a load, the load being in the form of a flash driver circuit (4) for a digital camera (not shown). The power supply includes a supercapacitive device, in the form of a supercapacitor (8), for powering circuit (... | 06/28/2011 |
| 7915866 | Supercapacitor backup power supply with bi-directional power flow A system for providing backup power supply to a device is provided. The system includes a supercapacitor and a single circuit for charging and discharging of a supercapacitor. The single circuit operates with an inductor to provide for charging and discharging of th... | 03/29/2011 |
| 7911187 | Energy storage system An energy storage system includes a battery charger and energy storage devices. The battery charger is connected to a DC/AC current source. The energy storage devices are coupled between the battery charger and subsystems respectively. Each of the energy storage dev... | 03/22/2011 |
| 7893662 | Method and related device for charging at the same voltage two or more capacitors connected in series A device, such as a pump capacitor or an energy storing inductor, is charged by coupling it to a voltage source. Thereafter, the device is connected in parallel to one of the capacitors or capacitance cells to be charged, and the charging of the device and successiv... | 02/22/2011 |
| 7852048 | Device and methods for supplying instant high power to small arms fire control system The present invention relates to a power supply device of a small arms fire control system or a similar small arms system. The device includes a first current limit part for limiting a low current when power is supplied from a battery, a second current limit part fo... | 12/14/2010 |
| 7808214 | Short-cycling serial hybrid drivetrain with high power density storage A serial hybrid drivetrain enables “super-efficiency” (fuel efficiency exceeding 100 miles-per-gallon) in a lightweight transportation vehicle, utilizing only high power density storage media (for example ultracapacitor media), with the total energy of storage c... | 10/05/2010 |
| 7750606 | Method of charging and discharging of supercapacitors without the use of converters or chargers An electrical power system may be provided with temporary power from a bank of supercapacitors connected to a bus of the power system. The supercapacitors may be charged from an output from a primary power source of the system during start-up of the power source. Ou... | 07/06/2010 |
| 7750607 | Auxiliary electric power supply for vehicle and charger/discharger for vehicle The auxiliary electric power supply for a vehicle has a first switch electrically connected to an I/O end; a capacitor bank; a discharge resistance; and a controller. The capacitor bank has series-connected electric double layer capacitors, and balanced resistances.... | 07/06/2010 |
| 7679337 | Power supply system A limit value of an output current of power converter is defined as a first current value when a voltage at both ends of capacitor is higher than a voltage at both ends of battery, and a limit value of the output current thereof is defined as a second current value ... | 03/16/2010 |
| 7667438 | Energy storage system with ultracapacitor and switched battery An energy storage system for a vehicle includes an ultracapacitor that is electrically coupled in parallel with a battery through a diode connected in series with the battery. The ultracapacitor delivers the energy required for all high current surges that occur dur... | 02/23/2010 |
| 7649344 | Power management for a portable electronic device A system for a supplemental power source for a hand held portable electronic device is provided. A super capacitor is connected in parallel to a main battery of the portable electronic device. When the main battery becomes disconnected, the super capacitor is used t... | 01/19/2010 |
| 7642755 | Method and apparatus to maximize stored energy in UltraCapacitor Systems The control system for an UltraCapacitor (or “SuperCapacitor) based energy storage system consists of a relay switch, a voltage up-converting device (e.g. DC-DC converter), regulated power supplies and a comparator circuit. The comparator circuit compares the stor... | 01/05/2010 |
| 7633271 | System and method for precharging and discharging a high power ultracapacitor pack This invention is a system and a method that uses the braking resistor, commonly used and available in electrically or hybrid-electrically propelled vehicles, to limit the precharge current during the startup of a high power ultracapacitor pack energy storage device... | 12/15/2009 |
| 7541782 | System and method for extracting energy from an ultracapacitor An extraction system detects a voltage stored in a capacitor and then extracts energy from the capacitor when the voltage falls below a predetermined value. The capacitor may be an ultracapacitor formed in silicon or another semiconductor material, and the predeterm... | 06/02/2009 |
| 7471068 | Ultra-fast ultracapacitor charging method and charger A charger for ultracapacitors that allows many ultracapacitors, that may be connected in several different configurations, to be charged from a very low voltage to their rated voltage very rapidly without cell damage. The charger also allows for the detection of fai... | 12/30/2008 |
| 7432616 | Inverter device In the inverter device of the invention, when a power source connected to an electrolytic capacitor 5 is interrupted, a switching control circuit 6a controls switching elements of an inverter main circuit 7a to operate to supply a ... | 10/07/2008 |
| 7417408 | Method and arrangement for charging capacitors of direct-voltage intermediate circuit of frequency converter A method and an arrangement for charging capacitors of a direct-voltage intermediate circuit of a frequency converter. The arrangement comprises a charging circuit (CCA) comprising a first diode (D1) and a second diode (D2) connected in series with the... | 08/26/2008 |
| 7362005 | Isolated dual battery system An isolated dual power source system for isolating a first power source of a vehicle, connected to an engine starter, from a second power source of the vehicle which has an electrical circuit for distributing electrical power among the consumers, includes first and ... | 04/22/2008 |
| 7345454 | Energy storage system An energy storage system is described for use in, for example, electronics systems such as a bank of computers. The disclosed energy storage systems allows the use of an efficient energy source, such as ultracapacitors, while providing a desired voltage level for an... | 03/18/2008 |
| 7323213 | Apparatus and method for discharge surface treatment An apparatus has a green compact electrode including a material of a coating formed on a workpiece by a discharge, a power source for supplying a first voltage, a voltage detector for detecting a voltage between the workpiece and the electrode, and a pulse current g... | 01/29/2008 |
| 7323849 | Rechargeable portable light with multiple charging systems A rechargeable portable light having a housing member with an opening for the emission of light, and two possible charging systems including an AC charger, and an auto or boat charger. An electronic circuit is located within the housing member and includes at least ... | 01/29/2008 |
| 7281223 | System and method for modeling an integrated circuit system The teachings of the present invention provide a method for modeling an integrated circuit system including a microchip, an integrated circuit package, and a printed circuit board. The method includes generating a configuration file including parasitics regarding ba... | 10/09/2007 |
| 7275501 | System and method using capacitors to power an automatic feeder system A method and apparatus relates to systems powered by energy stored in capacitors. The capacitors may be charged using any desired power source. The system does not require batteries, which increases the reliability and life span of the system. In one example, an aut... | 10/02/2007 |
| 7259692 | Hybrid power management system and method A system and method for hybrid power management. The system includes photovoltaic cells, ultracapacitors, and pulse generators. In one embodiment, the hybrid power management system is used to provide power for a highway safety flasher. ... | 08/21/2007 |
| 7248019 | Cordless power tool A cordless power tool such as a power staple gun 1 includes a power supply circuit of an electric double layer capacitor 8 and a lithium-ion battery 11. In a standby state, the lithium-ion battery charges the electric double layer capacitor, and... | 07/24/2007 |
| 7245185 | Controlling a power converter In response to a change in a circuit parameter of a converter delivering power to a load, the converter is operated in a mode in which additional power is supplied to the load by a capacitive element that is in parallel with the converter, the circuit parameter incl... | 07/17/2007 |
| 7206705 | Method and apparatus for balancing capacitors in a capacitor bank A method and apparatus are for balancing capacitors in a capacitor bank. Three voltage levels are produced by a reference voltage source, to monitor the state of charge of the capacitors. The capacitor voltage on each capacitor is determined and is compared with the... | 04/17/2007 |
| 7157884 | Method and circuit for energizing and de-energizing an electric energy storage device A method and circuit for energizing an electric energy storage device (10) to a high voltage with electric energy supplied by a high voltage electric power source (16) in a safe, effective and efficient manner by first moving electric charges supplied ... | 01/02/2007 |
| 7148658 | Photoflash capacitor charger and method thereof A method for charge control of a photoflash capacitor. The method includes detecting a voltage on the photoflash capacitor, asserting and then latching a recharge signal when the detected voltage is lower than a first reference voltage, de-asserting and then latchin... | 12/12/2006 |
| 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 breaker allows for intermittent current within an assumed product usage d... | 12/05/2006 |
| 7109686 | System and method for precharging and discharging a high power ultracapacitor pack This invention is a system and a method that uses the braking resistor, commonly used and available in electrically or hybrid-electrically propelled vehicles, to limit the precharge current during the startup of a high power ultracapacitor pack energy storage device... | 09/19/2006 |
| 7085123 | Power supply apparatus and power supply method A power supply apparatus and a power supply method are described, wherein the non-polar characteristics of the electrodes of a capacitor is utilized to improve the energy utilization efficiency of a battery through reciprocating switches of polarity connection betwe... | 08/01/2006 |
| 7078942 | Driving apparatus for generating a driving current using PWM A current driving apparatus includes a first square wave generator (100), a second square wave generator (200), an FET (Field Effect Transistor) (3), and a power supply (9). The first square wave generator has an output connected to the s... | 07/18/2006 |
| 7067011 | Apparatus and method for discharge surface treatment An apparatus has a green compact electrode including a material of a coating formed on a workpiece by a discharge, a power source for supplying a first voltage, a voltage detector for detecting a voltage between the workpiece and the electrode, and a pulse current g... | 06/27/2006 |
| 7042197 | Control circuit A control circuit (101) is configured for use with a load in the form of hardware (102) of a laptop computer (103). Circuit (101) includes input terminals (105, 106) for electrically connecting with respective terminals (107, 10... | 05/09/2006 |
