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"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 8174246 | Vehicle power generation controlling device and vehicle system A switching element, a duty deciding circuit, an LRC circuit, a voltage detecting circuit, and an LRC limit value deciding circuit are included. The switching element 58 outputs a duty factor of a field winding of a vehicle power generator towards an ECU, via... | 05/08/2012 |
| 8138729 | Generation control apparatus for vehicles that controls current supply to a field winding of a generator to control output voltage of the generator The present invention provides, as one aspect, a generation control apparatus for vehicles which controls current supply to a field winding of a generator to control output voltage of the generator. The apparatus includes a switching element connected to the field w... | 03/20/2012 |
| 8125195 | Control apparatus for in-vehicle AC generator Power-generation control operation for an in-vehicle electric generator is further stabilized in such a way that, in the case where a signal at an external-control-signal input terminal changes, a function of on/off-controlling a magnetic-field current in a constant... | 02/28/2012 |
| 8080980 | Alternator regulator with automatic regulation dependent on system voltage An alternator configured for use in a vehicle comprises a stator having a plurality of stator windings. A rotatable field coil is positioned adjacent to the stator within the alternator. A field driver circuit is configured to deliver an electric current to the fiel... | 12/20/2011 |
| 8058850 | Overload control of an electric power generation system with unknown availability of mechanical power capacity A control system for an electrical power generation system (EPGS) provides overload protection without disconnecting a generator of the EPGS from an excessive electrical load. Available engine power and current levels of the electrical load are continuously measured... | 11/15/2011 |
| 8022677 | Electrical device and operating method An electrical device having a generator, e.g., for use in the vehicle electrical system of a motor vehicle, includes a controller for controlling the generator voltage. In the device, an area is provided in which a voltage control is carried out, and other areas are... | 09/20/2011 |
| 8013578 | Alternator The present invention relates to an alternator comprising: an alternator stator (2) comprising a main secondary winding (7) delivering an output voltage; at least one auxiliary winding (3); and an exciter field... | 09/06/2011 |
| 7999518 | Method for managing power supply system with variable voltage, especially of motor vehicle A method for managing a power supply system with a variable voltage comprising the following steps: according to an instantaneous rotational speed of a rotating electrical machine, a power supply system output voltage with a variable voltage is set to an optimum out... | 08/16/2011 |
| 7990112 | Adaptive field control of a variable frequency synchronous generator A voltage regulator with an adaptive field discharge control system may use the rate of change of the POR voltage, the rate of change of the output current and rate of change of the field current, or any combination of these, as an input. The adaptive field discharg... | 08/02/2011 |
| 7948218 | Voltage regulator for magnetogenerators with configurable connection of the phase windings The voltage regulator receives power in A.C. from a permanent magnet voltage generator, having phase windings with a configurable connection, to supply power in D.C. to a battery. The voltage regulator comprises a plurality of semi-bridge rectifiers connected betwee... | 05/24/2011 |
| 7944183 | Output voltage controller for AC vehicle generator An output voltage controller for an AC vehicle generator is proposed. The output voltage controller can easily suppress variation in rectified output voltage due to a switching surge without using a slope generation circuit in a voltage adjustment circuit. An excita... | 05/17/2011 |
| 7847524 | High voltage protection for a thin oxide CMOS device A circuit includes a voltage regulator (208) for outputting a voltage at a regulated level, a protection circuit (260), and a load circuit (210) coupled to the voltage regulator. The protection circuit includes means for preventing the voltage r... | 12/07/2010 |
| 7843175 | Method and apparatus for controlling excitation Excitation control circuitry for a synchronous generator is disclosed. The synchronous generator is of a type comprising a main machine (2) and an exciter (6) for exciting the main machine. The excitation control circuitry comprises an automatic voltag... | 11/30/2010 |
| 7816893 | Control apparatus for automotive alternator with function of initialization state detection A control apparatus controls power generation of an electric generator and communicates with an external control apparatus. The control apparatus includes a receiver, a controller, an initialization state detector, and a transmitter. The receiver receives a command ... | 10/19/2010 |
| 7782023 | Multipower voltage regulator Certain embodiments of the present technology provide voltage regulator-alternator configurations that can distribute loads among a plurality of alternators, and fail-safe mechanisms used in connection with such voltage regulator-alternator configurations. For examp... | 08/24/2010 |
| 7772808 | Voltage regulating system and voltage regulator A voltage regulating system includes a generator, a battery, a warning light, a starting switch, and a voltage regulator. The voltage regulator includes an exciting driver connected to an exciting winding of the generator so as to excite the exciting winding; a volt... | 08/10/2010 |
| 7768240 | Power generator A power generator includes a magnetic pole rotor in which a plurality of N magnetic pole cores and S magnetic pole cores are arranged alternately at regular intervals and that is rotatably supported, stator coils that oppose the magnetic pole rotor and are wound rou... | 08/03/2010 |
| 7755332 | Control apparatus for automotive alternator with function of initialization state detection A control apparatus controls power generation of an electric generator and communicates with an external control apparatus. The control apparatus includes a receiver, a controller, an initialization state detector, and a transmitter. The receiver receives a command ... | 07/13/2010 |
| 7728560 | Power system for producing low power DC voltage at a level above a peak value of an AC input to the system DC power for low power loads is provided for vehicles such as snowmobiles where the electrical system includes primarily AC power. DC voltage is provided for gauges and similar loads even though the peak value of the AC is below a desired level. Rectification and re... | 06/01/2010 |
| 7723962 | High voltage protection for a thin oxide CMOS device A circuit includes a voltage regulator (208) for outputting a voltage at a regulated level, a protection circuit (260), and a load circuit (210) coupled to the voltage regulator. The protection circuit includes means for preventing the voltage r... | 05/25/2010 |
| 7723963 | Target regulation voltage setting apparatus The target regulation voltage setting apparatus for a vehicle on which a vehicle alternator is mounted includes a first function of calculating a large first-order delay and a small first-order delay of a rotational speed of the vehicle alternator at regular time in... | 05/25/2010 |
| 7719239 | Fast field discharge for generator over-voltage control A voltage regulator for controlling over-voltage conditions in an electrical generator by rapidly discharging the generator field winding current into a discharge resistor upon the detection of the over-voltage. A field discharge transistor is switched by a soft swi... | 05/18/2010 |
| 7714545 | Controller of generator for vehicle A controller of a generator (1) for a vehicle comprising a voltage regulator (3) for regulating a generated voltage to a predetermined voltage by performing on/off control of a field current through a switching element and performing variable control o... | 05/11/2010 |
| 7683588 | Device for controlling power generated in vehicle A device for controlling vehicle power generation that controls duty cycle of an excitation winding in a vehicle power generator and controls an output voltage from the vehicle power generator to a predetermined value includes a power generation controlling circuit ... | 03/23/2010 |
| 7656134 | B-plus patch and voltage transient spike suppressor for an automotive voltage regulator An Improved Automotive All Silicon Voltage Regulator (I-ASVR) for use in the automotive components re-manufacturing and original equipment alternator product. Particularly this device improves the electrical connections, prevents failures related to poor connections... | 02/02/2010 |
| 7576520 | Power generation control device for vehicle generator The power generation control device for a vehicle generator includes an IC circuit including a communication circuit formed therein and having a function of performing a digital communication with an external device through a communication wire, and a resistor mount... | 08/18/2009 |
| 7564224 | Power-generator control method and apparatus using externally applied periodic signal In a power-generator control apparatus installed in a power-generator designed to generate an output voltage at an output terminal thereof, a regulating unit regulates the output voltage so that the regulated output voltage is equivalent to a first target value. Whe... | 07/21/2009 |
| 7538522 | Specially improved automotive replacement voltage regulator This device is A Specially Improved Automotive Replacement Voltage Regulator for use in the automotive components remanufacturing and original equipment alternator product. Particularly this device has additional transient suppression means for the loads; “high si... | 05/26/2009 |
| 7531992 | Control system for controlling output of power generator In a control system for controlling a power generator based on a command value associated with a control parameter, a receiver receives the command signal, a detector detects the command value included in the received command signal, and a determiner determines whet... | 05/12/2009 |
| 7531991 | Output voltage regulator for engine-driven generator An output voltage regulator for an engine-driven generator that can satisfactory suppress fluctuation in output voltage, even when an output waveform of the generator is distorted. An engine revolution period that represents a period of output voltage is detected by... | 05/12/2009 |
| 7528584 | Power MOS voltage regulator for batteries A power MOS voltage regulator for recharging batteries of motor vehicles; a voltage generator is selectively connected to a battery, respectively to an earth by a controlled rectifier bridge. The rectifier bridge includes a Schottky diode connected between each phas... | 05/05/2009 |
| 7498776 | Control device for vehicle AC generator A highly reliable control device for an AC generator without using a transistor and diode having high withstand voltage is provided. A control device for a vehicle AC generator including a voltage control circuit that controls an output voltage of a rectifyin... | 03/03/2009 |
| 7477042 | 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... | 01/13/2009 |
| 7466107 | System and method for electric current and power monitoring and control of a generator A control device measures a voltage drop across a conductor in a generator to determine and control the total generator output current. A temperature of the conductor is also measured to improve the accuracy. The control device may further improve on the accuracy by... | 12/16/2008 |
| 7453241 | Electronic controller matching engine power to alternator power and maintaining engine frequency for a free-piston stirling engine driving a linear alternator A feedback control method and circuit for inclusion in a control system of an electrical power generating source that comprises a free piston Stirling engine driving a linear alternator. An instantaneous value of a variable, Vinternal, is continuously der... | 11/18/2008 |
| 7443142 | Active rectification of alternator output without using a position sensor Disclosed herein is an automotive electrical system including a FET based rectifier and method of controlling the FET based rectifier without using either an alternator shaft position sensor or current sensors on each phase of the alternator output to control the sw... | 10/28/2008 |
| 7443143 | Controller of AC generator for vehicle A controller of a generator for a vehicle in the invention includes a battery voltage detecting circuit and an output terminal voltage detecting circuit of an AC generator. A value of a detected voltage of the output terminal voltage of the AC generator is set to be... | 10/28/2008 |
| 7439713 | Modulation control of power generation system Methods and apparatuses are disclosed for producing current with a desired output frequency from one or more fixed or variable speed alternators by varying a saturation level of a portion of the alternator(s) based on a output frequency desired, and preferably then ... | 10/21/2008 |
| 7436154 | Vehicle generator control device A vehicle generator control device includes a transistor chopper type exciting circuit for supplying an excitation current to a vehicle-mounted electric generator drivable by an engine of the motor vehicle. The exciting circuit comprises a bridge circuit having a fi... | 10/14/2008 |
| 7423351 | Vehicle-generator control device The vehicle-generator control device for controlling an output voltage of a vehicle generator by on/off-controlling an excitation current flowing into an excitation winding of the vehicle generator, includes an excitation current detecting circuit detecting an excit... | 09/09/2008 |
