Patents for H02P 9 - Arrangements for controlling electric generators for the purpose of obtaining a desired output (15,039) |
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06/13/1989 | US4839576 Controller for AC generator in vehicles |
06/13/1989 | US4839575 Alternator regulator having output monitoring and limiting controls |
06/07/1989 | EP0318475A1 Voltage regulator for a generator. |
05/30/1989 | CA1254942A1 Generator voltage regulating system |
05/18/1989 | WO1989004542A1 Centrifugally activated switch for a synchronous generating system |
05/10/1989 | EP0314882A1 Digital slip frequency generator and method for determining the desired slip frequency |
04/26/1989 | EP0313366A2 Variable speed constant frequency power system with boost converter auxiliary output |
04/26/1989 | EP0313096A1 Control system of pumping operation using AC exciting generator-motor |
04/25/1989 | US4825139 Electric power supply unit, in particular for a motor vehicle, and an electric rotary machine for such a unit |
04/19/1989 | EP0311717A1 Improvements in synchronous generators |
04/18/1989 | US4823018 Control system for variable speed water-wheel generator apparatus |
04/12/1989 | CN2035939U Automatic microcomputer controller for generator load |
04/11/1989 | CA1252509A1 Voltage regulated permanent magnet generator system |
04/05/1989 | EP0309814A1 Electric energy generation device |
04/04/1989 | US4819179 Digital slip frequency generator and method for determining the desired slip frequency |
03/29/1989 | EP0308621A2 Power system stabilizer |
03/28/1989 | US4816756 Circuit and method for statically testing rotating rectifiers in brushless alternators |
03/28/1989 | US4816696 Variable-speed pumped-storage power generating system |
03/22/1989 | CN2034753U Electron voltage regulator for car's generator |
03/15/1989 | CN2034352U Electronic voltage regulator of ac generator for vehicle |
03/14/1989 | US4812730 Variable-speed generator/motor system |
03/14/1989 | US4812729 Protecting apparatus for secondary excitation type variable speed AC generator/motor |
03/09/1989 | WO1989002187A1 Engine governor eddy-current damper mechanism and method |
03/08/1989 | EP0306319A1 Method for statically testing rotating rectifiers in brushless alternators |
03/08/1989 | CN2033961U Micro-computer controlling hydroelectric generator |
03/08/1989 | CN1003551B Electric power system for starting large rotatable synchronous machine |
03/02/1989 | DE3727696A1 Method and device for asynchronous motor acceleration of an asynchronous generator |
02/28/1989 | US4808842 Dual voltage generator system |
02/23/1989 | DE3726940A1 Starting device for an internal combustion engine driving an alternator |
02/21/1989 | US4807106 Method and circuit for voltage regulation of DC power sources |
02/21/1989 | US4806841 Constant speed and frequency generating system |
02/21/1989 | US4806781 Water-driven machine set with the speed reference value set for optimum efficiency |
02/15/1989 | EP0303171A2 A variable speed generator-motor apparatus |
02/08/1989 | EP0302107A1 Power generating system |
02/08/1989 | CN2032376U Step load equalizer for trigger tube voltage measuring |
02/07/1989 | US4803472 Phase signal detecting device |
02/01/1989 | CN2031980U Voltage regulator for electric generator of automobile |
01/31/1989 | US4801859 Boost/buck DC/DC converter |
01/31/1989 | CA1249630A1 Pumping-up generator/motor system and method of operation of the same |
01/24/1989 | US4800291 Electronic circuit for control of a voltage regulator of an electrical generator |
01/18/1989 | EP0299807A2 Method and apparatus for managing alternator loads on engines |
01/18/1989 | CN2030955U Thick-film ic regulator |
01/17/1989 | US4798082 Control-display device for an engine-equiped apparatus |
01/17/1989 | CA1249022A1 Voltage regulator for generator |
01/11/1989 | CN2030775U Automatic voltage-regulator for synchronous generator |
01/04/1989 | EP0297127A1 Double differential, electrically compensated constant speed drive |
12/28/1988 | EP0296529A1 Speed control device for a generator, driven by a water turbine |
12/28/1988 | EP0296234A1 Starting system for an electrically-compensated constant speed drive |
12/27/1988 | US4794316 Induction machine system |
12/27/1988 | US4793309 Engine governor eddy-current damper mechanism and method |
12/14/1988 | EP0294394A1 Peak power shaving apparatus and method. |
12/14/1988 | CN88202349U Multi-purpose integrated regulator of generator of car |
12/13/1988 | US4791309 Electrical control systems |
12/07/1988 | EP0294190A2 A resin sealed semiconductor device and a method for making the same |
12/07/1988 | EP0294146A1 Exhaust energy recovery apparatus for engine |
12/07/1988 | CN88202348U Double-functional integrated generator adjuster for vehicle |
12/07/1988 | CN88105250A Electronic manostat of a.c. magnetoelectric generator |
12/01/1988 | WO1988004519A3 Starting system for an electrically-compensated constant speed drive |
11/29/1988 | US4788653 Digital filter for power system stabilizer |
11/29/1988 | CA1245716A1 A.c. motor-generator |
11/22/1988 | US4786853 Brushless capacitor excited generator |
11/17/1988 | EP0290480A1 Power circuit for switching the number of poles on the rotor of synchronous machines by using rotative diodes |
11/01/1988 | CA1244081A1 System to control the frequency of a generator driven by an autonomous hydraulic turbine |
10/26/1988 | CN87213089U Voltage regulator of silicon rectified generator in an automobile |
10/11/1988 | US4777425 Alternator voltage regulator with speed responsive control |
10/06/1988 | WO1988007782A1 Electric generator |
10/05/1988 | CN88202036U Electric power system fluted coupling using frequency or speed as signal |
09/28/1988 | CN87214809U Transistor switch excitation-adjusting device |
09/28/1988 | CN87214719U Portable pneumatic washing unit |
09/07/1988 | EP0280876A1 system and method for optimizing generation of electrical power |
09/06/1988 | US4769611 Frequency sensing circuits and methods |
08/25/1988 | WO1988006378A1 Power generating system |
08/24/1988 | EP0243356A4 Regulated chopped dc power supply apparatus. |
08/23/1988 | US4766360 Induction generator/motor system |
08/16/1988 | US4764838 Regulated alternator with positive fault related shut down apparatus |
08/10/1988 | CN87100292A Factor improving method to heigten moving target selecting radar |
08/02/1988 | US4761726 Variable speed constant frequency power system with boost converter auxiliary output |
07/28/1988 | DE3700863A1 Electric regulation arrangement for maintaining a uniform control voltage |
07/27/1988 | EP0275953A2 Variable-speed power generating system |
07/26/1988 | US4760323 For an automobile engine |
07/20/1988 | EP0275192A2 Reconfigurable integrated controls and displays for a turbomachine |
07/05/1988 | US4755734 Voltage regulator for vehicle mounted generator |
06/30/1988 | WO1988004860A1 Double differential, electrically compensated constant speed drive |
06/30/1988 | WO1988004519A2 Starting system for an electrically-compensated constant speed drive |
06/28/1988 | US4754156 Control apparatus for variable-speed hydraulic power generating system |
06/22/1988 | EP0271498A1 Emergency power system |
06/22/1988 | CN87107870A Cogeneration system |
06/21/1988 | US4752751 Electrical power supply |
06/16/1988 | WO1988004494A1 Peak power shaving apparatus and method |
06/14/1988 | US4751629 Output power regulating system for a portable engine powered electric generator |
06/07/1988 | US4749944 Load detecting device for generator |
06/07/1988 | US4749935 Alternator and controlled rectifier for producing pulse width modulated DC output pulses |
06/02/1988 | WO1988004113A1 Procedure and apparatus for producing an a.c. voltage |
06/02/1988 | WO1988003989A1 Cogeneration system |
06/01/1988 | EP0268726A2 Cogeneration system |
06/01/1988 | CN87211251U Regulator for externally grounded alternator |
05/31/1988 | CA1237488A1 Switching circuit utilizing a field effect transistor |
05/25/1988 | EP0268160A1 Method and device to reduce at least one frequence portion of a periodic pulsation |
05/24/1988 | US4746807 Automatic control system for controlling the output power of a power plant |
05/11/1988 | EP0266556A2 A rotating electric machine for use as a motor |