| Patents for H02P 9 - Arrangements for controlling electric generators for the purpose of obtaining a desired output (15,039) |
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| 04/11/1990 | CN2055997U Outside electricity generating equipment for energy saving of drilling machine |
| 04/09/1990 | EP0294394A4 Peak power shaving apparatus and method. |
| 04/04/1990 | EP0361292A1 Synchronous machine with a shunt excitation device |
| 04/04/1990 | EP0361174A1 Protection method and device for the detection of an asynchronism in the frequency start of a synchronous machine |
| 04/04/1990 | CN1041042A Automatic field ground detector and locator |
| 04/03/1990 | US4914374 Voltage regulator for AC generator with constant interruption frequency |
| 04/03/1990 | US4914373 Generator set for use on a building site |
| 03/28/1990 | CN1007394B Brushless generator exciter using hybrid rectifier |
| 03/20/1990 | US4910451 Voltage regulator for generator of an automobile |
| 03/20/1990 | US4910421 Potential source excitation system with voltage and current adjustment |
| 03/15/1990 | DE3829671A1 Regulation of converter-powered synchronous machines |
| 03/14/1990 | EP0358483A2 An automatic field ground detector and locator |
| 03/14/1990 | CN2054592U Current-limiting non-contact adjuster of vehicle direct current generator |
| 03/13/1990 | US4908565 Power generating system |
| 03/07/1990 | EP0357183A1 Automotive electrical apparatus having a starter/generator induction machine |
| 03/07/1990 | CN2054234U Mixed-flow type computer controlled hydroelectric generator |
| 03/07/1990 | CN1040293A Power generator |
| 03/06/1990 | US4906060 Apparatus and method for controlling the output frequency of a wind-driven alternator |
| 03/06/1990 | CA1266507A1 Variable-speed generator/motor system |
| 03/06/1990 | CA1266506A1 Control apparatus for variable-speed hydraulic power generating system |
| 02/28/1990 | CN2053812U Mechano-electric unitized power supply unit for electric drilling machine |
| 02/21/1990 | EP0354902A1 Dual or single voltage vehicular power supply with improved switch |
| 02/21/1990 | CN2053406U Voltage adjuster for electric generator of car |
| 02/21/1990 | CN1039941A Electronic regulator with charge indicating light relay |
| 02/21/1990 | CN1006924B Variable speed water raising shenerate electricity arrangement |
| 02/20/1990 | CA1266117A1 Automatic ground fault protection for an electric power system |
| 02/20/1990 | CA1266088A1 Induction machine system |
| 02/20/1990 | CA1266087A1 Method for protecting two static converters with direct-current link from overcurrents |
| 02/14/1990 | EP0354790A2 Method and apparatus for controlling power generation in internal combustion engines |
| 02/14/1990 | CN2052990U Voltage adjuster for automobile ac generater |
| 02/14/1990 | CN2052989U Voltage back diffirence trigger transistor voltage adjuster |
| 02/14/1990 | CN2052980U Electronic adjuster for generator |
| 02/14/1990 | CN1039687A Multifunctional microcomputer control system of synchronous motor |
| 02/06/1990 | US4899209 Resin sealed semiconductor device |
| 01/31/1990 | EP0352951A2 A.C. generator fault detector |
| 01/25/1990 | WO1990000833A1 Rotary induction machine having control of secondary winding impedance |
| 01/24/1990 | CN2051801U Voltage regulator for vehicle used generators |
| 01/23/1990 | US4896088 Fault-tolerant switched reluctance machine |
| 01/10/1990 | EP0350077A2 Control apparatus for an A.C. generator for automobile |
| 01/03/1990 | EP0348938A1 Current producing plant supplying mains and consumer |
| 01/03/1990 | EP0348461A1 Centrifugally activated switch for a synchronous generating system |
| 01/03/1990 | CN1038555A Method and circuit for voltage regulation of dc power sources |
| 12/19/1989 | US4888493 Speed trimming integrated drive generator |
| 12/12/1989 | US4887020 Self-compensating brushless alternator |
| 12/12/1989 | US4886978 Exhaust energy recovery apparatus for engine |
| 12/06/1989 | CN2049049U Controller for magnetic motor of motorcycle |
| 12/05/1989 | US4885526 Compensation circuit for electrical generators |
| 11/30/1989 | WO1989011587A1 Method and apparatus for managing alternator loads on engines |
| 11/29/1989 | EP0343458A1 Permanent magnet excited electric machine with an electric field weakening device |
| 11/29/1989 | CN2048649U Electronic voltage stabilizer for high magnetic ac generater |
| 11/28/1989 | US4883973 Automotive electrical system having a starter/generator induction machine |
| 11/23/1989 | EP0342333A2 Power generator |
| 11/23/1989 | DE3914863A1 Control system for a motor vehicle charging generator |
| 11/22/1989 | CN2048265U Voltage regulator of automotive generator with low power comsumption |
| 11/16/1989 | WO1989011179A1 Integrated generator set controller apparatus and method |
| 11/15/1989 | EP0341980A2 Method and circuit for voltage regulation of dc power sources including a generator having an exciter field coil |
| 11/08/1989 | EP0340595A1 Method for determining the time constant characteristics of a motor driven system |
| 11/01/1989 | CN2047078U Internal voltage regulater for generator of automobile |
| 10/31/1989 | US4877273 Operation control system for internal combustion engines |
| 10/25/1989 | EP0338512A2 Engine driven generator |
| 10/25/1989 | CN2046692U Voltage regulator with integrated circuit |
| 10/25/1989 | CN1036671A Compensation circuit for electrical generators |
| 10/12/1989 | EP0271498A4 Emergency power system. |
| 10/11/1989 | CN1036302A Three phase asynchronous electricity generating device |
| 10/03/1989 | US4871960 Output voltage control system for an electric generator |
| 09/27/1989 | EP0333736A1 Procedure and apparatus for producing an a.c. voltage |
| 09/26/1989 | US4870339 Variable-speed power generating system |
| 09/26/1989 | CA1261916A1 Hybrid generating system |
| 09/20/1989 | EP0332843A2 Compensation circuit for electrical generators |
| 09/19/1989 | US4868906 Centrifugally activated switch for a synchronous generating system |
| 09/19/1989 | US4868480 Electric power generator |
| 09/19/1989 | US4868406 Electrically compensated constant speed drive with prime mover start capability |
| 09/14/1989 | DE3739726A1 Building site electrical power generator for electrical loads and welding tasks |
| 09/12/1989 | US4866364 Power circuit for switching the number of poles on the rotor of synchronous machines by using rotative diodes |
| 09/05/1989 | US4864242 Automatic field winding ground detector and locator |
| 08/23/1989 | EP0329368A1 Generator |
| 08/15/1989 | US4856965 Control system of pumping operation using AC exciting generator-motor |
| 08/10/1989 | WO1989007359A1 Dual or single voltage vehicular power supply with improved switch |
| 08/08/1989 | US4855664 Method and apparatus for damping oscillations of an ac generator |
| 08/02/1989 | EP0326281A2 Rectifier device for AC generator of an automobile |
| 08/02/1989 | CN2042258U Automatic voltage adjustor of power generator |
| 08/01/1989 | US4853557 Automotive alternator power generator for welding or use of power tools |
| 08/01/1989 | CA1258092A1 Variable speed wind turbine |
| 07/26/1989 | EP0325205A2 Electric power supply system for motor vehicle |
| 07/25/1989 | US4851757 Method and system for reducing at least one frequency component of a periodic pulsation |
| 07/18/1989 | US4849646 Air driven whistle generator |
| 07/13/1989 | WO1989006305A1 Speed-limited electrically compensated constant speed drive |
| 07/04/1989 | CA1256943A1 Apparatus for controlling a turbo generator |
| 06/28/1989 | CN2040282U Electronic voltage adjuster for silicon-rectified generator |
| 06/28/1989 | CN1004675B Device for stabilizing torsional-vibration of turbogenerator shaft |
| 06/20/1989 | US4841218 Electronic controller and a system and method for optimizing generation of electrical power utilizing the same |
| 06/20/1989 | US4841216 Engine start type VSCF generating system |
| 06/20/1989 | US4841202 Speed-limited electrically compensated constant speed drive |
| 06/20/1989 | CA1256161A1 Voltage regulator with maximum current |
| 06/20/1989 | CA1256160A1 Electronic voltage regulator with two - directional action for alternators |
| 06/20/1989 | CA1256159A1 Torque control for a variable speed wind turbine |
| 06/20/1989 | CA1255985A1 Load sensitive fuel cutoff and method to increase engine stability |
| 06/14/1989 | EP0319905A1 Power feeding system for a rotor |
| 06/14/1989 | CN2039479U Electronic regulator for ac electric generator of vehicle |
| 06/14/1989 | CN1033429A High performance, self-excited electronic regulator for ac generator |