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| Number | Title | Issue Date |
| 7782015 | Electric power system A system and method produces electrical power for a load. First and second battery banks are provided, as is an inverter bank, which produces three phase. A switch alternately connects one of the first or second battery banks to the load and to the inverter bank wit... | 08/24/2010 |
| 7605563 | Charging circuit and charger using the same A charging circuit includes a generator, a step-down circuit for reducing an output voltage of the generator to a predetermined voltage, a current controller for controlling a charging current that is supplied from the step-down circuit to a secondary battery, based... | 10/20/2009 |
| 7425815 | Modulation charging circuitry for battery charging Circuitry for charging a battery includes a switch for coupling the power source to the battery. The switch is turned on and off in accordance with a periodic control signal including a plurality of periods. Each period includes a first duration during which the con... | 09/16/2008 |
| 7365518 | Ion engine power supply A power supply for an ion engine comprises a multiphase alternator and a power converter comprising a voltage multiplier coupled to each phase of the alternator. Each voltage multiplier comprises one or more staged voltage doublers. The alternator phases may be coup... | 04/29/2008 |
| 7365519 | Excitation system having inner loop voltage regulator with by-pass capability An excitation system that includes an exciter for generating a field voltage for a rotor, a first automatic voltage regulator and a second automatic voltage regulator. The first regulator receives an output voltage of the power generation system as an input, and the... | 04/29/2008 |
| 7363175 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/22/2008 |
| 7325524 | Ignition/fuel injection system with auxiliary and separation charging power sources An ignition/fuel injection system adapted with an auxiliary power source to exclusively supply power needed for the operation of the system, and a separation charging power source to separate that from the batteries for starting the motor so to avoid affecting the n... | 02/05/2008 |
| 7319304 | Shunt connection to a PCB of an energy management system employed in an automotive vehicle A method of coupling a shunt to a printed circuit board (PCB) of an energy management system is provided. The method includes coupling flexible electrical connectors to the shunt and soldering the flexible electrical connectors to connection points on the PCB of the... | 01/15/2008 |
| 7317300 | Automotive battery state monitor apparatus A voltage control apparatus checks a battery voltage when an automotive generator gradually increases its output to be within a predetermined range after temporarily stopping the generator. Then, the battery voltage is picked up to calculate the charge rate. Further... | 01/08/2008 |
| 7309966 | Motor vehicle A motor vehicle comprising at least one electric motor, an energy storage device for providing drive energy for the electric motor, a plug connector connected to the energy storage device for connection to a current source and a control means for controlling the flo... | 12/18/2007 |
| 7295936 | Electronic battery tester with relative test output An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ... | 11/13/2007 |
| 7291933 | Double alternator and electrical system for a vehicle A double alternator for a vehicle and a vehicle electrical system employing the double alternator. ... | 11/06/2007 |
| 7288919 | Voltage balance circuit, voltage detective circuit, voltage balancing method, and voltage detecting method When a control section (39) turns on a switch (31, 33, 35), a capacitor (37) is connected to a secondary battery (B1) in parallel. Accordingly, voltage between both ends of each capacitor (37, 38) reaches voltage between both polar... | 10/30/2007 |
| 7285938 | Apparatus for controlling on-vehicle generator A generation controller controls an amount of power generated by an on-vehicle generator responsively to a command signal from an external controller. The generation controller comprises detection, determination, and output control units. The detection unit detects ... | 10/23/2007 |
| 7274170 | Battery pack control module A battery pack control module for balancing a plurality of cells or groups of cells connected in series includes a controller assembly, a disconnect circuit, a pack sensing circuit, a balancing circuit, and computer instructions for instructing the controller assemb... | 09/25/2007 |
| 7262581 | Power supply A rechargeable power supply including voltage protection means through voltage dependent disconnecting means. A rechargeable power supply comprises at least one rechargeable cell connectable to a power source, a Zener diode connected to the at least one cell, and a ... | 08/28/2007 |
| 7246015 | Alternator tester An alternator tester is provided for testing an alternator of a vehicle while the alternator is coupled to the vehicle. A sensor is configured to couple to the vehicle and sense a signal related to operation of the alternator. A memory contains data related to opera... | 07/17/2007 |
| 7239113 | Method for reducing undesired currents in an electrical power generation system An electrical power generation system is provided, and a method of reducing undesired currents therein. The method includes the steps of delivering current via at least one variable frequency switching means, and adjusting a switching frequency of the at least one v... | 07/03/2007 |
| 7235953 | System and method for determining whether a charging wire is broken In a system, a generator is configured to charge a battery through a charging wire connecting therebetween. A first unit measures a voltage of the battery, and a second unit detects an operating rate of the generator. A third unit determines that the charging wire i... | 06/26/2007 |
| 7227272 | Control apparatus for electrical generator of motor vehicle A control apparatus such as an ECU, that controls the generator of a vehicle, measures the engine rotation speed and generator rotation speed while the engine is idling, and calculates and stores the ratio of the speed values. Thereafter when the vehicle is being dr... | 06/05/2007 |
| 7227340 | Alternator rectifier with coil-sensor controlled MOSFETs A switching circuit for an electric machine is provided. The switching circuit includes switches for energizing the phase windings of the machine and sensors for driving the state of the switches. The switches are voltage-controlled devices and the sensors are coils... | 06/05/2007 |
| 7224146 | Dual voltage electrical system A dual voltage supply system supplies high and low voltage electrical power to separate high and low voltage loads. The system includes an AC alternator and first and second rectifier circuits, each connected to the alternator and a corresponding high and low voltag... | 05/29/2007 |
| 7222984 | Hand operated flashlight A flashlight includes one or more light devices for being energized to generate light, one or more chargeable batteries are received in the housing and coupled to the light device for energizing the light device, an electric generating device is received in the hous... | 05/29/2007 |
| 7224144 | Control of vehicle generator using PWM signal with specially determined duty and frequency A control apparatus for a vehicle generator includes a switch, a regulator, a fault condition detector, and a PWM signal generator. The switch is selectively turned on and off so as to intermittently excite the generator. The regulator controls on/off operation of t... | 05/29/2007 |
| 7204623 | Bicycle lighting device A bicycle lighting device is configured to make possible the efficient illumination of an LED while controlling power loss between the generator and the LED. An LED unit has at least one LED. A protector circuit controls the flow of current to each LED according to ... | 04/17/2007 |
| 7193395 | Systems and method for boosting output of an alternator Disclosed herein are two techniques, neutral point switching and field voltage boost, that will increase the output of today's 12 volt automotive electrical systems in vehicle idle conditions solely by the addition of circuitry. Neutral point switching enables the f... | 03/20/2007 |
| 7187088 | Power supply apparatus for electric vehicle To provide a power supply apparatus for an electric vehicle wherein the insulation of a power supply line for supplying a drive voltage to an electric motor can be simplified and the cost for the insulation can be reduced. A power supply apparatus for an electric ve... | 03/06/2007 |
| 7183746 | Cart charge system A charging mechanism includes means for generating electrical current and means connected to the generating means for distributing the generated current. At least one battery bank formed from a plurality of batteries is connected in series. A means for charging the ... | 02/27/2007 |
| 7180272 | Malfunction detecting apparatus for on-vehicle charging system An apparatus is provided for detecting a malfunction in an on-vehicle charging system provided with a generator driven by an engine and a battery connected with the generator via a charging line. The apparatus comprises a first control unit controlling a generated c... | 02/20/2007 |
| 7180205 | Dual-voltage vehicle electric system The present invention discloses a dual-voltage vehicle electric system in which a dual-battery vehicle electric system is integrated. In this dual-voltage vehicle electric system, two conventional vehicle batteries are used and are generally operated while connected... | 02/20/2007 |
| 7170261 | Generator with dual cycloconverter for 120/240 VAC operation A generator system has two modes of operation, such as 120 VAC and 240/120 VAC. The generator system has a permanent magnet generator with two independent sets of windings that each generate a three phase AC voltage. One three phase AC voltage is coupled to a first ... | 01/30/2007 |
| 7165641 | Bicycle power supply with discharge function A bicycle power supply apparatus comprises a battery unit; a bicycle condition detecting unit that detects when a bicycle is in a selected condition that ordinarily does not require drawing current from the battery unit for powering a current drawing element; and a ... | 01/23/2007 |
| 7132832 | Self-diagnosis system for an energy storage device A self-diagnosis system for an energy storage device, the latter including a plurality of electrochemical cells connected in series or parallel to form a cell string. The self-diagnosis system correlates a state of health of the battery based on the internal resista... | 11/07/2006 |
| 7132833 | System for detecting defective battery packs An electrical cabinet for an uninterruptibe power supply (UPS) system includes universal slots that can receive power modules, battery packs, or chargers. The back plane of the slot has connector terminals for battery packs and power modules. The cabinet can be easi... | 11/07/2006 |
| 7126307 | Interface circuit for actuating an electrical device and circuit arrangement for actuating an electric motor therewith An interface circuit for actuating an electrical consumer, especially a pole-changing rotary-current induction motor, with a first contact element assigned to a signal line carrying an alternating voltage signal to generate at least two different control signals. A ... | 10/24/2006 |
| 7126341 | Automotive vehicle electrical system diagnostic device An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation o... | 10/24/2006 |
| 7119519 | Control apparatus for on-vehicle generator that sends power from the battery to the field winding and from the field winding back to the battery A control apparatus for an on-vehicle generator is provided. The generator, driven to rotate by an on-vehicle engine, is provided with stator windings, rectifiers, a field winding, and a voltage control apparatus (i.e., the control apparatus for the on-vehicle gener... | 10/10/2006 |
| 7106070 | Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries A broad-band technique for reducing the distributed inductance of a four-conductor Kelvin cable is disclosed. A special inductance-canceling cable section is connected in tandem with the cable section contacting the cell/battery. Connections between the two cable se... | 09/12/2006 |
| 7106028 | Controller of A.C. generator for vehicles The structure of the present invention includes: a switching element inserted in series in a field coil of an A.C. generator for intermittently controlling a field current supplied to the field coil in accordance with an output voltage from the A.C. generator in ord... | 09/12/2006 |
| 7102331 | Generator with dual cycloconverter for 120/240 VAC operation A generator system in accordance with the invention has two modes of operation, such as 120 VAC and 240/120 VAC modes of operation. The generator system has a permanent magnet generator with two independent sets of windings that each generate a three phase AC voltag... | 09/05/2006 |
