Secondary battery quick-charging circuit
OF THE PREFERRED EMBODIMENT As embodied herein, a source of battery-charging voltage comprises an AC source 1, a transformer 2, and a diode bridge comprising the diodes D2, D3, D4, and D5. The rectif... Read More
Inventors: Fujiwara, Toshiaki;, Assignee: Ryobi Ltd. (Fuchu, JP) |
Signalling circuit
It is an object of the invention to fashion a signalling circuit such that it functions reliably in a broad range of operating voltages with the lowest possible power consumption. In accordance with t... Read More
Inventors: Schott, Heinrich;, Assignee: Siemens Aktiengesellschaft (Berlin and Munich, DE) |
Pulse-controlled converter and electric motor controller
The present invention relates to a pulse-controlled converter including at least a first solid-state switch, located in the upper stage of a bridge arm, periodically interrupting a dc current, and a s... Read More
Inventors: Bourgeois, Jean-Marie;, Assignee: SGS-Thomson Microelectronics, S.A. (Pouilly, FR) |
Electrical power distribution
Accordingly, one aspect of the invention utilizes a battery including a container, one or more cells in the container, each said cell having therein at least one positive plate and at least one negati... Read More
Inventors: Witehira, Pita; Bydder, Evan L.;, Assignee: Power Beat International, Ltd. (Hamilton, NZ) |
Microprocessor controlled post ejection sequencer
I claim: 1. In an aircraft ejection seat, the combination comprising: a parachute and means carried by the seat to deploy the parachute; left and right pitot tubes carried by the seat; means carried b... Read More
Inventors: Peck, Walter R.; Duncan, James W.;, Assignee: Universal Propulsion Company, Inc. (Phoenix, AZ) |
AC motor drive system with a two phase power supply
It is an object of the present invention to provide an AC motor drive system which overcomes the aforementioned problems and disadvantages of conventional drive systems. To achieve the objects and in ... Read More
Inventors: Wills, Frank E.; Schnetzka, II, Harold R.;, Assignee: York International Corporation (York, PA) |
Battery charging and cycling devices
In accordance with a first aspect of the present invention, there is provided a battery cell charging device comprising means for connecting battery cells of different types thereto, and means for gen... Read More
Inventors: Laliberte, Lambert;, Assignee: IRSST Institut de Recherche en Sante et en Securite du Travail du Quebec (Montreal, CA) |
Equipment for the electronic speed control of an induction type motor, especially for use with data store motors
What we claim is: 1. In equipment for the electronic speed control of an induction type motor, comprising a motor speed transmitter, a reference transmitter coupled to the motor speed transmitter, and... Read More
Inventors: Rothman, Gyorgy; Biro, Ferenc; Babos, Gyorgy; Antolik, Karoly; Roffa, Otto;, Assignee: Mechanikai Laboratorium Hiradastechnikai Kiserleti Vallalat (HU) |
Transformerless drive circuit for field-effect transistors
OF THE INVENTION FIG. 1 shows a drive circuit incorporating the invention for use with a regulator 22 wherein the components are arranged in a conventional configuration. The drive circuit 20 compris... Read More
Inventors: Nesler, John J.;, Assignee: Hughes Aircraft Company (El Segundo, CA) |
Insulated-gate semicustom integrated circuit
It is an object of this invention to provide an insulated-gate semicustom integrated circuit capable of enhancing the electrostatic breakdown strength without increasing the area occupied by a protect... Read More
Inventors: Shiochi, Masazumi; Ugawa, Akimitsu;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
FET overtemperature protection circuit
An object of the present invention is to provide an improved transistor overtemperature protection circuit which overcomes the above-mentioned deficiencies. A more particular object of the present inv... Read More
Inventors: Qualich, John;, Assignee: Motorola Inc. (Schaumburg, IL) |
Keyboard anti-lockout circuit
In personal computer systems, fluctuations in power may give rise to conditions requiring resetting of the system, and short term fluctuations may require special actions in order to avert lockup of t... Read More
Inventors: Lindfors, Eino A.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Electric power system
This invention relates to an electrical rectification and regulation system comprising two stages and adapted to be connected to a source of alternating current power, such as a permanent magnet alter... Read More
Inventors: Minks, Floyd D.;, Assignee: |
Apparatus for detecting faults on power transmission lines
The present invention has for its object to provide a novel and useful apparatus for detecting a fault position on the over-head power transmission line, in which the fault point can be located accura... Read More
Inventors: Shinoda, Katsuro; Kawaguchi, Toshiyuki; Katsukawa, Hiroyuki; Kimura, Genzo; Tanaka, Naoki; Abe, Hiroyuki; Sakurai, Yasuhisa;, Assignee: NGK Insulators, Ltd. (JP) |
Power factor correction circuit
The present invention is directed to a power factor correction circuit for use in a power supply. Power factor correction, as is here referred to, is applicable to any type of equipment which must be ... Read More
Inventors: Neufeld, Herman;, Assignee: Cherry Semiconductor Corporation (East Greenwich, RI) |
Vehicle based AC power system
The above, and other objects which will be apparent to those skilled in the art, are accomplished in the present invention in which a hybrid alternator includes a stator with a stator winding surround... Read More
Inventors: LaVelle, William J.; Syverson, Charles D.; Curtiss, William P.;, Assignee: Ecoair Corp. (New Haven, CT) |
Metal-air power supply and air-manager system, and metal-air cell for use therein
A metal-air power supply 10 made in accordance with a preferred embodiment of the present invention is shown in FIGS. 2-4. A metal-air cell battery pack 13 for use in the power supply 10 is best show... Read More
Inventors: Bentz, R. Dennis; Pedicini, Christopher S.; Scott, Jr., William J.;, Assignee: AER Energy Resources, Inc. (Atlanta, GA) |
Low mercury, high discharge rate electrochemical cell
The invention generally comprehends novel anode material compositions, using indium ion in the anode material, as a component provided separate from the zinc metal powder, preferably in combination wi... Read More
Inventors: Collien, Randall L.; Spellman, Patrick J.; Dopp, Robert B.; Oltman, John Edward; Burns, John David; Passaniti, Joseph Lynn; Root, Michael J.;, Assignee: Rayovac Corporation (Madison, WI) |
Constant current source and battery charger
What is claimed is: 1. A speed up circuit for a power transistor switch operated from a single-ended power supply comprising: a switch transistor coupled between said power supply and a load circuit; ... Read More
Inventors: Konopka, John G.;, Assignee: Zenith Electronics Corporation (Glenview, IL) |
Correction device and correction method for secondary batteries connected in series
OF THE INVENTION An embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing a correction device for secondary batteries ac... Read More
Inventors: Shiojima, Nobuo;, Assignee: Toshiba Battery Co., Ltd. (Tokyo, JP) |
Battery charger status monitor circuit and method therefor
OF THE DRAWINGS FIG. 1 is a diagram of a pulsed battery charger 11 charging a battery 12. Charging with current pulses is required for batteries comprising certain technologies, for example, recharge... Read More
Inventors: Yee, Renwin J.; Hall, Jefferson W.; Petty, Thomas D.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Energy system for electronic watch
I claim: 1. An energy system for an electronic watch having electronic circuits requiring a predetermined operating voltage and a time display actuated thereby, said system comprising: (A) a primary p... Read More
Inventors: Baumgartner, Werner R.;, Assignee: Bulova Watch Co., Inc. (Flushing, NY) |
Method for determining optimal capacity of auxiliary electric source system for an electric vehicle
Therefore, the present invention has been made in an effort to solve the above described problems. It is an object of the present invention to provide a method for determining optimal capacity of an a... Read More
Inventors: Kim, Chun-ho;, Assignee: KIA Motors Corporation (Seoul, KR) |
Method and arrangement for protecting a thyristor switch of a pulse generator
FIGS. 1 and 2 schematically depict pulse generating circuits known to the art which provide voltage pulse energization of electrostatic precipitators. For purposes of simplicity, the electrostatic pr... Read More
Inventors: Henriksen, Henrik; Nielsen, Torben G.; Taarning, Claus E.;, Assignee: F. L. Smidth & Company (Cresskill, NJ) |
Protection circuit for integrated circuits
The object of the invention is to provide a protection circuit for integrated circuits preferably used in motor vehicle technology which does not cause such high power dissipation in the circuit to be... Read More
Inventors: Krumrein, Gerhard;, Assignee: TELEFUNKEN electronic GmbH (Heilbronn, DE) |
Electric motor underload protection system
This invention relates to a protection system for an electric motor connected to first and second power supply lines, the lines being connectable to an AC power supply. The system comprises a line vol... Read More
Inventors: Miller, Thomas A.;, Assignee: Franklin Electric Co., Inc. (Bluffton, IN) |
Computer disk drive assembly having a resiliently supported separable disk pack unit
The system of the present invention provides simple yet highly effective mechanisms for achieving the aforementioned requirements for a removable disk drive. Briefly described, the system of the prese... Read More
Inventors: Mintzlaff, Richard P.;, Assignee: Danford Corporation (San Pedro, CA) |
Zero-current a.c. switching system
What is claimed is: 1. A zero-current a.c. switching system for controlling actuation of relay contacts between a power supply and a load comprising: means for sensing the load current flowing through... Read More
Inventors: Valeur, Bjorn E.;, Assignee: Electronic Instrument & Specialty Corp. (Stoneham, MA) |
Optical disk
Accordingly, it is an object of this invention to provide an improved disk. It is another object of this invention to provide an optical disk in which a chucking hub can be positively fixed to a disk ... Read More
Inventors: Takahashi, Kenji;, Assignee: Sony Corporation (Tokyo, JP) |
Electrical transient surge protection
FIG. 1 shows, in perspective, generally rectangular electrical utility box 5, which has grounding cable or rod 6 extending downward from one bottom corner. Forward and leftmost of the box is meter 7 ... Read More
Inventors: Allina, Edward F.;, Assignee: |
Electrical and Wave 
