Battery charging system with power management of plural peripheral devices
OF THE PREFERRED EMBODIMENT While the specification concludes with claims defining the features of the invention that are regarded as novel, it is believed that the invention will be better understoo... Read More
Inventors: Fernandez, Jose M.; Maierhafer, Daniel L.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Rechargeable battery charging circuit
Accordingly, it is therefore an object of the present invention to provide a novel battery charging circuit of a battery pack capable of charging a rechargeable battery quickly with high charging effi... Read More
Inventors: Lee, Chang-Hum;, Assignee: SamSung Electronics Co., Ltd. (Suwon, KR) |
Power converter with increased breakdown voltage maintaining stable operation
In order to solve the above-mentioned problems in the conventional art, it is an object of the present invention to provide a power converter and a signal level converter which can increase a breakdow... Read More
Inventors: Majumdar, Gourab; Hatae, Shinji; Yoshimura, Kousuke;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Battery charger and charge control system
The present invention overcomes the foregoing and other shortcomings and drawbacks of battery charger and charge control system and methods heretofore known. While the invention will be described in c... Read More
Inventors: Nowlin, Jr., Ronald D.; Throneberry, Heath; McCorkle, Donnie M.; Hathaway, Steven E.;, Assignee: Eagle-Picher Technologies, L.L.C. (Joplin, MO) |
AC Line voltage regulator with controlled energy dispenser
The present invention is an apparatus for regulating an oscillating AC voltage, the apparatus having an input port for connecting to a source of sinusoidal AC line voltage and an output port for deliv... Read More
Inventors: Cooper, Edward;, Assignee: Power-Matic, Inc. (San Diego, CA) |
Electric motor control with integral battery charger
OF A PREFERRED EMBODIMENT An electric motor control with integral battery charger includes battery terminals for connection to a be provided a battery. A boost converter circuit is coupled to an arma... Read More
Inventors: Kim, Sang H.; Li, Edward; Mitchell, Ralph M.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Low cost electronic ultracapacitor interface technique to provide load leveling of a battery for pulsed load or motor traction drive applications
One object of the invention is to provide a simplified load leveling system for a battery in an electric drive system. Another object of the invention is to provide an interface for a passive auxiliar... Read More
Inventors: King, Robert Dean; DeDoncker, Rik Wivina Anna Adelson;, Assignee: General Electric Company (Schenectady, NY) |
Equalizer system and method for series connected energy storing devices
The present invention is directed to an apparatus and method for regulating the charge voltage of a number of electrochemical cells connected in series. Equalization circuitry is provided to control t... Read More
Inventors: Rouillard, Jean; Comte, Christophe; Hagen, Ronald A.; Knudson, Orlin B.; Morin, Andre; Ross, Guy;, Assignee: Minnesota Mining & Manufacturing Co. (St. Paul, MN); Hydro-Quebec Corporation (Montreal, CA) |
Portable network adapter for portable computer
What is claimed is: 1. A portable adapter unit for coupling a small portable computer to a computer CTOS-type network comprising a network-coupling/signal processing stage including CTOS Cluster Contr... Read More
Inventors: Harris, Jr., George W.; Nolan, Shari J.; Dougherty, James M.;, Assignee: |
Clock control circuits, systems and methods
Generally, and in one form of the present invention, a microprocessor device includes a central processing unit having a clock input, a clock generator of clock pulses, a logic circuit having an outpu... Read More
Inventors: Walsh, James J.; Joe, Joseph; Chen, Ian; Takahashi, Yutaka;, Assignee: Texas Instruments Incorporated (Dallas, TX) |
Power converter with selectively variable output and controller and display system therefor
OF THE PREFERRED EMBODIMENT It will become apparent to those skilled in the art that various modifications to the preferred embodiments of the invention as described herein can be made without depart... Read More
Inventors: Phlipot, Thomas H.;, Assignee: Progressive Dynamics, Inc. (Marshall, MI) |
Life extending circuit for storage batteries
Disclosed is a simple, low cost and efficient tuned resonant circuit and method for prolonging the life of lead-acid storage batteries that are exposed to frequent and/or extensive periods of non-use.... Read More
Inventors: Winters, Thomas L.;, Assignee: |
Variable pulse recharging battery pack
In accordance with the present invention, a battery pack for an electrical device contains rechargeable batteries for supplying power to the electrical device and a transformerless pulse charging circ... Read More
Inventors: Ranta, Craig S.; Nierescher, David S.; Swedenburg, Steven M.;, Assignee: Selfcharge, Inc. (Bellevue, WA) |
METHOD AND APPARATUS FOR DETECTING SLOW AND SMALL CHANGES OF ELECTRICAL SIGNALS INCLUDING THE SIGN OF THE CHANGES, AND CIRCUIT ARRANGEMENT FOR THE EXACT DETECTION OF THE PEAK VALUE OF AN ALTERNATING VOLTAGE
I claim: 1. Apparatus for detecting slow and small changes of electrical signals including the sign of the changes, comprising: a controlled switch (2) connected in the path of the signal to be detect... Read More
Inventors: Fazakas, Andras;, Assignee: |
Method for computing an amount of energy taken from a battery
In accordance with one embodiment of the present invention, a method is provided to accurately compute the amount of energy taken from a battery powering a switching power converter circuit. Unlike th... Read More
Inventors: Kernahan, Kent;, Assignee: Fyre Storm, Inc. (Sunnyvale, CA) |
Inverter controller
In consideration of the above problems, the object of the present invention is to provide inverter controllers which enable PWM signals capable of harmonic suppression and of rapid current control res... Read More
Inventors: Maekawa, Katsumi;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Method and apparatus for programmably adjusting output voltage of a battery charger
It would be desirable and therefore an object for the present invention to provide an battery charging apparatus to allow more than one battery type to be used in a given electronic device without com... Read More
Inventors: Blanc, James J.; Gurries, Mark C.;, Assignee: Apple Computer Inc. (Cupertino, CA) |
Battery protection device
In view of the foregoing, it is an object of the present invention to provide a battery protection device that allows discharging when charging is prohibited and charging when discharging is prohibite... Read More
Inventors: Mori, Iichiro;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP) |
Battery diagnostic method utilizing a universal normalized discharge curve for predicting battery reserve time
To this end, in accordance with the present invention, there is provided a simplified method for monitoring the status of a battery and, more specifically, for predicting battery reserve time. The met... Read More
Inventors: Hirsch, Marc Daniel; Mathiesen, Gregory W.; Ng, Patrick Kwok-Yeung;, Assignee: Tyco Electronics Logistics AG (Mesquite, TX) |
State of charge method and apparatus
The present invention provides methods and apparatus for determining resistance and open circuit potential of a battery system using a fully recursive least squares analysis, which is based on previou... Read More
Inventors: Verbrugge, Mark William; Tate, Jr., Edward Dean; Frisch, Damon R.; Ying, Ramona Y.; Koch, Brian James; Sarbacker, Shawn D.;, Assignee: General Motors Corporation (Detroit, MI) |
Method and device for carrying out frequency synthesis in a distance measuring device
OF THE PREFERRED EMBODIMENTS In FIG. 1, one example of a distance measuring device is shown, which is equipped with a device according to the invention for carrying out frequency synthesis. The dista... Read More
Inventors: Giger, Kurt;, Assignee: Leica Geosystems AG (Heerbrugg, CH) |
Guard circuit for the protection of capacitive loads
Proceeding from the aforedefined state of prior art, the present invention is based on the problem of improving a guard circuit of the type described by way of introduction to the effect that a cost-e... Read More
Inventors: Labbus, Juergen; Bertram, Ralf;, Assignee: Bicc-Vero Electronics GmbH (Bremen, DE) |
Lighting circuit for vehicular discharge lamp
Accordingly, it is an object of the present invention to provide an improved lighting circuit for a vehicular discharge lamp, which can overcome the above shortcomings. To achieve the object, accordin... Read More
Inventors: Yagi, Soichi; Toda, Atsushi; Ozaki, Akiyoshi; Matsumoto, Akihiro;, Assignee: Koito Manufacturing Co., Ltd. (Tokyo, JP) |
Power conservation circuit
The present invention is directed to a power conservation circuit for removing power to a power device in the absence of a load. A switch is connected to output terminals on which a load is to placed.... Read More
Inventors: Cunningham, John C.;, Assignee: |
Power supply for standby circuits of electrical devices
It is one object of the invention to provide an economical power supply for standby circuits of electrical consumers, such as remote control receivers, monitoring systems, battery charging devices and... Read More
Inventors: Bircher, Anton;, Assignee: Fischer; Helmut (CH) |
Battery control apparatus for hybrid vehicle
The present invention was made in view of the above circumstances, and the object of the present invention is to provide a battery control apparatus for a hybrid vehicle capable of extending the time ... Read More
Inventors: Kinoshita, Naoki; Shibutani, Atsushi; Kawarada, Nobuyuki; Fujimura, Akira;, Assignee: Honda Giken Kogyo Kabushiki Kaisha (Tokyo, JP) |
Substrate transfer system
It is an object of the present invention to provide a high speed and high precision substrate transfer system by which the transfer of a substrate, such as a wafer, is assured with a small stress to t... Read More
Inventors: Ukaji, Takao; Yamane, Yukio;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Method for restoring the lost capacity of nickel batteries and batteries formed thereby
The invention involves a new method for partially or fully restoring the lost capacities of nickel batteries without alterations to the structures of the batteries, as well as the nickel batteries pr... Read More
Inventors: Dyer, Christopher K.;, Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories (Murray Hill, NJ) |
Power system battery temperature control
We claim: 1. A power outage lighting unit, comprising a cabinet, lighting means mounted on the cabinet, an insulated compartment in the cabinet adapted to hold a battery for powering the lighting mean... Read More
Inventors: Boehling, Daniel E.; Boehling, Jr., Richard L.;, Assignee: |
Satellite battery thermal/capacity design
The present invention relates to a method of operating a nickel-hydrogen battery which increases its charge capacity. The method comprises the step of completing the recharging process for the battery... Read More
Inventors: Hall, John G.;, Assignee: Space Systems/Loral, Inc. (Palo Alto, CA) |
Electrical and Wave 
