Apparatus for the conversion of pressure fluctuations prevailing in fluid systems into electrical energy
It is the task of the present invention to create an apparatus of the type specified at the start which produces an electrical voltage even in unfavourable conditions of illumination, without a reserv... Read More
Inventors: Kunkel, Horst;, Assignee: Hansa Metallwerke AG (Stuttgart, DE) |
Hand held computerized data collection terminal with rechargeable battery pack sensor and battery power conservation
The present invention pertains to hand-held computer apparatus and in particular to hand-held data entry terminals used by route delivery drivers to enter data and to prepare printed data. A hand-held... Read More
Inventors: Cargin, Jr., Keith K.; Mahany, Ronald L.; Durbin, Dennis A.; Boatwright, Darrell L.; Kelly, Stephen J.; Schultz, Darald R.; Gibbs, William T.;, Assignee: Intermec IP Corp. (Woodland Hills, CA) |
Automatic battery switching circuit for a marine propulsion system
The battery switching circuit for a marine propulsion system made in accordance with the present invention comprises first, second, and third batteries which each have a positive terminal and a negati... Read More
Inventors: Sleder, Sr., Richard L.;, Assignee: Brunswick Corporation (Lake Forest, IL) |
Battery charger
It is an object of this invention to provide a battery charger of simplified construction compared to the prior art, which is relatively inexpensive, and reliable, and which provides a charging charac... Read More
Inventors: Fallon, William H.; Schober, William R.;, Assignee: General Battery Corporation (Reading, PA) |
Dual battery system with improved overvoltage protection
What is claimed is: 1. An electrical system for a vehicle, said system comprising: a DC generator having an output, first and second storage batteries each having a rated voltage connected in series w... Read More
Inventors: Norton, Peter;, Assignee: |
Device for electrical source sharing
OF THE INVENTION A preferred embodiment of the invention is now described in detail. Referring to the drawings, like numbers indicate like parts throughout the views. As used in the description herei... Read More
Inventors: Papalia, Daniel T.; Morris, Doug; Hage, Peter G.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Solid state battery charger
In an exemplary embodiment, a solid state battery charger algorithm implements an algorithm for charging batteries comprising the steps of supplying a constant current to the batteries being charged u... Read More
Inventors: Hanson, Mark E.;, Assignee: |
AC transmission system with reactance compensation
Accordingly, one object of the present invention is to provide a novel AC transmission system that can make effective use of existing AC transmission lines, can cancel effects due to reactance, and ca... Read More
Inventors: Mizutani, Mami; Monden, Yukitaka; Shigeta, Masaaki; Tanaka, Shigeru; Yamamoto, Hajime; Uchino, Hiroshi;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Power supply control module for a battery control system of an appliance, and a battery equipped with such a module
The invention therefore provides a power supply control module for a battery control system for controlling the battery of an appliance, the control module preferably being permanently associated with... Read More
Inventors: Perelle, Michel;, Assignee: Societe Anonyme Dite: SAFT (Romainville, FR) |
Portable electronic device and method for supplying current to different loads
It is accordingly an object of the present invention to provide power with suitable voltage stability to all load circuits in a portable electronic device. Another object of the invention is to make e... Read More
Inventors: Nakanishi, Eiichi; Onodera, Tetsuo;, Assignee: Oki Electric Industry Co., Ltd. (Tokyo, JP) |
Electronic equipment power charging system
To solve the foregoing problem, the present invention provides the following means. A power charging system is provided outside of an electronic equipment having an electrothermal power generator. Thi... Read More
Inventors: Kanesaka, Toshiya;, Assignee: Seiko Instruments Inc. (JP) |
Capacitive type electric energy accumulator of high capacity
We claim: 1. An electric energy accumulator of capacitive type for use in an electrically motorized turret of a tank, said turret comprising a generally circular rotatable member, the accumulator comp... Read More
Inventors: Kaitandjian, Michel; Pradat, Philippe J.; Latouche-Halle, Jean P.; Falipou, Alain M.;, Assignee: Compagnie de Signaux et d'Equipements Electroniques (both of, FR); Etat Francais Represente Par le Delegue Genral pour l'Armement (both of, FR) |
Method and apparatus for a cardiac defibrillator high voltage charging circuit
One object of the present invention is to energize a cardiac defibrillator from multiple power supplies with reliable switching between supplies. A second object is to increase the fault tolerance of ... Read More
Inventors: Cameron, David B.; Bliley, Paul D.;, Assignee: Hewlett-Packard Company (Palo Alto, CA) |
Charging circuit for a lead-acid storage battery
. The drawing is a diagram of a circuit for charging the lead-acid storage battery 50 of a mobile telephone 51 from an input from a d.c. voltage source, shown as an automobile storage battery 12. 10 d... Read More
Inventors: Ramme, Friedrich;, Assignee: Robert Bosch GmbH (Stuttgart, DE) |
Automatic gain control and method for enabling detection of low and high amplitude depolarization activation waves of the heart and atrial defibrillator utilizing the same
The present invention therefore provides a method for reliably detecting a depolarization activation wave of the heart. The method includes the steps of providing a detection system having a variable ... Read More
Inventors: White, Harley; Bocek, Joseph M.;, Assignee: InControl, Inc. (Redmond, WA) |
Constant current source employing power conversion circuitry
An improved battery charging circuit provides a substantially constant current output to a rechargeable battery. In a preferred embodiment, constant current is provided on the front end of the battery... Read More
Inventors: Afzal, Ejaz;, Assignee: Emerging Technologies Corporation (Laguna Hills, CA) |
Charging apparatus
It is therefore an object of the present invention to provide a charging apparatus capable of charging a secondary battery even when a set circuit is in a drive state and having a simplified circuit c... Read More
Inventors: Umetsu, Koji;, Assignee: Sony Corporation (JP) |
Automatic battery charging system
The present charger has the following unique features, among others: 1. The charger has two independent channels in which two batteries are charged simultaneously. The circuitry provides automatic cha... Read More
Inventors: Creaco, Anthony F.; Kussmaul, Ernest A.;, Assignee: Kussmaul Electronics Company Inc. (Sayville, NY) |
Voltage-regulator for regulating the voltage of an alternator
We claim: 1. A voltage regulator for regulating an output voltage of an alternator which is driven by an internal combustion engine and supplies a variable load with electric power, and also has an ex... Read More
Inventors: Schramm, Guenter; Kohl, Walter; Meyer, Friedhelm; Mittag, Rainer;, Assignee: Robert Bosch GmbH (Stuttgart, DE) |
Method of converting turbine driven generator into a synchronous condenser
Having thus described the invention, what is claimed and desired to be secured by Letters Patent is: 1. A method of making a synchronous condenser from an electric generator driven by a steam turbine,... Read More
Inventors: Giberson, Melbourne F.;, Assignee: |
Single-head, direct overwrite magneto-optic system and method
In parent applications Ser. Nos. 033,931 and 837,130, the inventors hereof describe their discovery of biasless compensation point operation. By using a ferrimagnetic recording medium with a compensat... Read More
Inventors: Kryder, Mark H.; Shieh, Han-Ping D.;, Assignee: Movid Information Technology, Inc. (Schenectady, NY) |
Battery charging systems for road vehicles
We claim: 1. A battery charging system for a road vehicle comprising in combination an alternator and associated rectifier supplying power to first and second d.c. supply lines between which the batte... Read More
Inventors: Allport, Maurice James; Williams, David Gordon;, Assignee: The Lucas Electrical Company Limited (EN) |
Power converting device and a protection device for the same
Accordingly, one object of this invention is to provide a novel power converting device, including a novel protection device thereof which can operate with a high-reliability. Another object of this i... Read More
Inventors: Hirata, Akio;, Assignee: Tokyo Shibaura Denki Kabushiki Kaisha (Kanagawa, JP) |
Amplified microphone assembly
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A microphone assembly comprising: transducer means for converting an audio signal to ... Read More
Inventors: Hochstein, Peter A.;, Assignee: |
Chopper assisted uninterruptible power supply
The present invention resides in an uninterruptible AC power supply including a standby battery automatically called upon failure of the AC power supply to provide energy converted from DC to AC. Acco... Read More
Inventors: Kawabata, Takao;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JA) |
Current-source power converting apparatus with self-extinction devices
An object of the present invention is to provide a current-source power converting apparatus which comprises an AC-DC converter connected to an AC power source and a DC-AC inverter supplied with the D... Read More
Inventors: Ueda, Shigeta; Hombu, Mitsuyuki; Honda, Kazuo; Ueda, Akiteru; Suzuki, Katsunori; Shima, Seiya;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Energy controller for conversion from a direct current source to a variable frequency load
I claim: 1. A turn off circuit for a multiphase motor comprising a DC powered, three element core transformer including: i. a central core element having a winding thereon; ii. outer core elements bea... Read More
Inventors: Boyce, Jay;, Assignee: Jay Boyce & Associates (Anaheim, CA) |
Switching regulator with current limiting shutdown
In the switching regulator according to Electronics, see above, a current limiting device is provided which detects the current through the actuator and blocks the actuator by way of a control input o... Read More
Inventors: Nathan, Adolf;, Assignee: ANT Nachrichtentechnik GmbH (Backnang, DE) |
Motor protection circuit
The invention is summarized in that a protection circuit for a motor having first and second windings comprises a first voltage dividing circuit including first and second serially connected resistanc... Read More
Inventors: Tyler, Hugh J.; Newell, Dennis E.;, Assignee: Robertshaw Controls Company (Richmond, VA) |
Pivoted arm control arrangement
We claim: 1. Apparatus for use in controlling the movement of an arm which is pivoted for movement in first and second orthogonal planes including means to generate a first electrical signal related t... Read More
Inventors: Ridler, Keith D.; Plummer, Dexter R.;, Assignee: Streathern Audio Limited (Belfast, GB5) |
Electrical and Wave 
